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224 changed files with 839 additions and 8451 deletions

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@ -1,14 +0,0 @@
#!/usr/bin/env bash
#
# cabal v2-test does not work with GHCJS
# See: https://github.com/haskell/cabal/issues/6175
#
# This invokes cabal-plan to figure out test binaries, and invokes them with node.
cabal-plan list-bins '*:test:*' | while read -r line
do
testpkg=$(echo "$line" | perl -pe 's/:.*//')
testexe=$(echo "$line" | awk '{ print $2 }')
echo "testing $textexe in package $textpkg"
(cd "$testpkg" && node "$testexe".jsexe/all.js)
done

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@ -13,14 +13,14 @@ jobs:
strategy:
matrix:
os: [ubuntu-latest]
cabal: ["3.6"]
cabal: ["3.2"]
ghc:
- "8.0.2"
- "8.2.2"
- "8.4.4"
- "8.6.5"
- "8.8.4"
- "8.10.7"
- "9.0.2"
- "9.2.2"
- "9.4.2"
- "8.10.2"
steps:
- uses: actions/checkout@v2
@ -49,7 +49,7 @@ jobs:
- name: Configure
run: |
cabal install --ignore-project -j2 doctest --constraint='doctest ^>=0.20'
cabal install --ignore-project -j2 doctest --constraint='doctest ^>=0.17'
- name: Build
run: |
@ -64,70 +64,86 @@ jobs:
# Necessary for doctest to be found in $PATH
export PATH="$HOME/.cabal/bin:$PATH"
DOCTEST="cabal repl --with-ghc=doctest --ghc-options=-w"
(cd servant && eval $DOCTEST)
(cd servant-client && eval $DOCTEST)
(cd servant-client-core && eval $DOCTEST)
(cd servant-http-streams && eval $DOCTEST)
(cd servant-docs && eval $DOCTEST)
(cd servant-foreign && eval $DOCTEST)
(cd servant-server && eval $DOCTEST)
(cd servant-machines && eval $DOCTEST)
(cd servant-conduit && eval $DOCTEST)
(cd servant-pipes && eval $DOCTEST)
# Filter out base-compat-batteries from .ghc.environment.*, as its modules
# conflict with those of base-compat.
#
# FIXME: This is an ugly hack. Ultimately, we'll want to use cabal-doctest
# (or cabal v2-doctest, if it ever lands) to provide a clean GHC environment.
# This might allow running doctests in GHCJS build as well.
perl -i -e 'while (<ARGV>) { print unless /package-id\s+(base-compat-batteries)-\d+(\.\d+)*/; }' .ghc.environment.*
# stack:
# name: stack / ghc ${{ matrix.ghc }}
# runs-on: ubuntu-latest
# strategy:
# matrix:
# stack: ["2.7.5"]
# ghc: ["8.10.7"]
(cd servant && doctest src)
(cd servant-client && doctest src)
(cd servant-client-core && doctest src)
(cd servant-http-streams && doctest src)
(cd servant-docs && doctest src)
(cd servant-foreign && doctest src)
(cd servant-server && doctest src)
(cd servant-machines && doctest src)
(cd servant-conduit && doctest src)
(cd servant-pipes && doctest src)
# steps:
# - uses: actions/checkout@v2
# - uses: haskell/actions/setup@v1
# name: Setup Haskell Stack
# with:
# ghc-version: ${{ matrix.ghc }}
# stack-version: ${{ matrix.stack }}
# - uses: actions/cache@v2.1.3
# name: Cache ~/.stack
# with:
# path: ~/.stack
# key: ${{ runner.os }}-${{ matrix.ghc }}-stack
# - name: Install dependencies
# run: |
# stack build --system-ghc --test --bench --no-run-tests --no-run-benchmarks --only-dependencies
# - name: Build
# run: |
# stack build --system-ghc --test --bench --no-run-tests --no-run-benchmarks
# - name: Test
# run: |
# stack test --system-ghc
ghcjs:
name: ubuntu-latest / ghcjs 8.6
runs-on: "ubuntu-latest"
stack:
name: stack / ghc ${{ matrix.ghc }}
runs-on: ubuntu-latest
strategy:
matrix:
stack: ["2.3.1"]
ghc: ["8.8.4"]
steps:
- uses: actions/checkout@v2
- uses: cachix/install-nix-action@v13
- uses: haskell/actions/setup@v1
name: Setup Haskell Stack
with:
extra_nix_config: |
trusted-public-keys = ryantrinkle.com-1:JJiAKaRv9mWgpVAz8dwewnZe0AzzEAzPkagE9SP5NWI=1aba6f367982bd6dd78ec2fda75ab246a62d32c5 cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
substituters = https://nixcache.reflex-frp.org https://cache.nixos.org/
- name: Setup
ghc-version: ${{ matrix.ghc }}
stack-version: ${{ matrix.stack }}
- uses: actions/cache@v2.1.3
name: Cache ~/.stack
with:
path: ~/.stack
key: ${{ runner.os }}-${{ matrix.ghc }}-stack
- name: Install dependencies
run: |
stack build --system-ghc --test --bench --no-run-tests --no-run-benchmarks --only-dependencies
- name: Build
run: |
stack build --system-ghc --test --bench --no-run-tests --no-run-benchmarks
- name: Test
run: |
stack test --system-ghc
ghcjs:
name: ubuntu-18.04 / ghcjs 8.4
runs-on: "ubuntu-18.04"
steps:
- uses: actions/checkout@v2
- name: "Setup PATH"
run: |
echo "PATH=$HOME/.cabal/bin:/opt/ghcjs/8.4/bin:$PATH" >> $GITHUB_ENV
- name: Install ghcjs and cabal
run: |
sudo add-apt-repository ppa:hvr/ghcjs
sudo apt-get update -y
sudo apt-get install ghcjs-8.4
sudo apt-get install cabal-install
# Override cabal.project with the lightweight GHCJS one
cp cabal.ghcjs.project cabal.project
cat cabal.project
nix-shell ghcjs.nix --run "cabal v2-update && cabal v2-freeze"
- name: Cabal update and freeze
run: |
cabal v2-update
cabal v2-freeze
- uses: actions/cache@v2.1.3
name: Cache ~/.cabal/store and dist-newstyle
@ -135,14 +151,23 @@ jobs:
path: |
~/.cabal/store
dist-newstyle
key: ${{ runner.os }}-ghcjs8.6-${{ hashFiles('cabal.project.freeze') }}
key: ubuntu-18.04-ghcjs8.4-${{ hashFiles('cabal.project.freeze') }}
restore-keys: |
${{ runner.os }}-ghcjs8.6-
ubuntu-18.04-ghcjs8.4-
- name: Install cabal-plan and hspec-discover
run: |
cabal v2-install -w /opt/ghc/8.4.4/bin/ghc --ignore-project cabal-plan --constraint='cabal-plan ^>=0.6.0.0' --constraint='cabal-plan +exe'
cabal v2-install -w /opt/ghc/8.4.4/bin/ghc --ignore-project hspec-discover
- name: Build
run: |
nix-shell ghcjs.nix --run "cabal v2-build --ghcjs --enable-tests --enable-benchmarks all"
cabal v2-build --ghcjs -w /opt/ghcjs/8.4/bin/ghcjs --enable-tests --enable-benchmarks all
- name: Tests
- name: Run tests
run: |
nix-shell ghcjs.nix --run ".github/run-ghcjs-tests.sh"
# cabal v2-test does not work with GHCJS
# See: https://github.com/haskell/cabal/issues/6175
#
# This invokes cabal-plan to figure out test binaries, and invokes them with node.
cabal-plan list-bins '*:test:*' | while read -r line; do testpkg=$(echo "$line" | perl -pe 's/:.*//'); testexe=$(echo "$line" | awk '{ print $2 }'); echo "testing $textexe in package $textpkg"; (cd "$(pkgdir $testpkg)" && nodejs "$testexe".jsexe/all.js); done

2
.gitignore vendored
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@ -30,8 +30,6 @@ doc/_build
doc/venv
doc/tutorial/static/api.js
doc/tutorial/static/jq.js
shell.nix
.hspec-failures
# nix
result*

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@ -79,10 +79,8 @@ not been a timely response to a PR, you can ping the Maintainers group (with
We encourage people to experiment with new combinators and instances - it is
one of the most powerful ways of using `servant`, and a wonderful way of
getting to know it better. If you do write a new combinator, we would love to
know about it! Either hop on
[#haskell-servant on libera.chat](https://web.libera.chat/#haskell-servant) and
let us know, or open an issue with the `news` tag (which we will close when we
read it).
know about it! Either hop on #servant on freenode and let us know, or open an
issue with the `news` tag (which we will close when we read it).
As for adding them to the main repo: maintaining combinators can be expensive,
since official combinators must have instances for all classes (and new classes

32
Makefile Normal file
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@ -0,0 +1,32 @@
# With common maintenance tasks
HC ?= ghc-8.4.4
all :
@echo "Don't try to make all at once!"
really-all :
$(MAKE) build-ghc
$(MAKE) build-ghc HC=ghc-8.0.2
$(MAKE) build-ghc HC=ghc-8.2.2
$(MAKE) build-ghc HC=ghc-8.6.5
$(MAKE) build-ghcjs
build-ghc :
cabal v2-build -w $(HC) all
build-ghcjs :
cabal v2-build --builddir=dist-newstyle-ghcjs --project-file=cabal.ghcjs.project all
packdeps :
packdeps */*.cabal
doctest : doctest-servant doctest-servant-server
perl -i -e 'while (<ARGV>) { print unless /package-id\s+base-compat-\d+(\.\d+)*/; }' .ghc.environment.*
doctest-servant :
(cd servant && doctest src)
(cd servant && doctest test/Servant/LinksSpec.hs)
doctest-servant-server :
(cd servant-server && doctest src)

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@ -13,7 +13,7 @@ The core documentation can be found [here](http://docs.servant.dev/).
Other blog posts, videos and slides can be found on the
[website](http://www.servant.dev/).
If you need help, drop by the IRC channel (#haskell-servant on libera.chat) or [mailing
If you need help, drop by the IRC channel (#servant on freenode) or [mailing
list](https://groups.google.com/forum/#!forum/haskell-servant).
## Contributing
@ -63,9 +63,3 @@ To compare with `reitit` (Clojure framework)
```
You can see the visualised results at https://www.techempower.com/benchmarks/#section=test
## Nix
A developer shell.nix file is provided in the `nix` directory
See [nix/README.md](nix/README.md)

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@ -2,13 +2,8 @@
packages:
servant/
servant-client/
servant-client-core/
-- we need to tell cabal we are using GHCJS
compiler: ghcjs
tests: True
-- Constraints so that reflex-platform provided packages are selected.
constraints: attoparsec == 0.13.2.2
constraints: hashable == 1.3.0.0

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@ -1,18 +1,12 @@
packages:
servant/
servant-auth/servant-auth
servant-auth/servant-auth-client
servant-auth/servant-auth-docs
servant-auth/servant-auth-server
servant-auth/servant-auth-swagger
servant-client/
servant-client-core/
servant-http-streams/
servant-docs/
-- Tests failing with Cabal (TODO: investigate)
-- servant-docs/
servant-foreign/
servant-server/
servant-swagger/
doc/tutorial/
-- servant streaming
@ -32,12 +26,12 @@ packages:
doc/cookbook/custom-errors
doc/cookbook/basic-streaming
doc/cookbook/db-postgres-pool
doc/cookbook/db-sqlite-simple
-- doc/cookbook/db-sqlite-simple
doc/cookbook/file-upload
doc/cookbook/generic
doc/cookbook/hoist-server-with-context
doc/cookbook/https
doc/cookbook/jwt-and-basic-auth
-- doc/cookbook/hoist-server-with-context
-- doc/cookbook/https
-- doc/cookbook/jwt-and-basic-auth/
doc/cookbook/pagination
-- doc/cookbook/sentry
-- Commented out because servant-quickcheck currently doesn't build.
@ -47,8 +41,34 @@ packages:
doc/cookbook/using-custom-monad
doc/cookbook/using-free-client
-- doc/cookbook/open-id-connect
doc/cookbook/managed-resource
tests: True
optimization: False
-- reorder-goals: True
constraints:
-- see https://github.com/haskell-infra/hackage-trustees/issues/119
foundation >=0.0.14,
memory <0.14.12 || >0.14.12
constraints: base-compat ^>=0.11
constraints: semigroups ^>=0.19
-- MonadFail
-- https://github.com/nurpax/sqlite-simple/issues/74
constraints: sqlite-simple < 0
-- allow-newer: sqlite-simple-0.4.16.0:semigroups
-- allow-newer: direct-sqlite-2.3.24:semigroups
-- needed for doctests
write-ghc-environment-files: always
-- https://github.com/chordify/haskell-servant-pagination/pull/12
allow-newer: servant-pagination-2.2.2:servant
allow-newer: servant-pagination-2.2.2:servant-server
-- https://github.com/haskell-servant/servant-multipart/pull/41
allow-newer: servant-multipart:servant
allow-newer: servant-multipart:servant-server
allow-newer: servant-multipart:servant-client-core
allow-newer: servant-js:servant

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@ -1,9 +0,0 @@
synopsis: Fixes encoding of URL parameters in servant-client
prs: #1432
issues: #1418
description: {
Some applications use query parameters to pass arbitrary (non-unicode) binary
data. This change modifies how servant-client handles query parameters, so
that application developers can use `ToHttpApiData` to marshal binary data into
query parameters.
}

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@ -1,11 +0,0 @@
synopsis: Derive HasClient good response status from Verb status
prs: #1469
description: {
`HasClient` instances for the `Verb` datatype use `runRequest` in
`clientWithRoute` definitions.
This means that a request performed with `runClientM` will be successful if and
only if the endpoint specify a response status code >=200 and <300.
This change replaces `runRequest` with `runRequestAcceptStatus` in `Verb`
instances for the `HasClient` class, deriving the good response status from
the `Verb` status.
}

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@ -1,9 +0,0 @@
synopsis: Enable FlexibleContexts in Servant.API.ContentTypes
prs: #1477
description: {
Starting with GHC 9.2, UndecidableInstances no longer implies FlexibleContexts.
Add this extension where it's needed to make compilation succeed.
}

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@ -1,10 +0,0 @@
synopsis: Fix performRequest in servant-client-ghcjs
prs: #1529
description: {
performRequest function in servant-client-ghcjs was not compatible with the
latest RunClient typeclass. Added the acceptStatus parameter and fixed the
functionality to match what servant-client provides.
}

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@ -1,81 +0,0 @@
synopsis: Display capture hints in router layout
prs: #1556
description: {
This PR enhances the `Servant.Server.layout` function, which produces a textual description of the routing layout of an API. More precisely, it changes `<capture>` blocks, so that they display the name and type of the variable being captured instead.
Example:
For the following API
```haskell
type API =
"a" :> "d" :> Get '[JSON] NoContent
:<|> "b" :> Capture "x" Int :> Get '[JSON] Bool
:<|> "a" :> "e" :> Get '[JSON] Int
```
we previously got the following output:
```
/
├─ a/
│ ├─ d/
│ │ └─•
│ └─ e/
│ └─•
└─ b/
└─ <capture>/
├─•
└─•
```
now we get:
```
/
├─ a/
│ ├─ d/
│ │ └─•
│ └─ e/
│ └─•
└─ b/
└─ <x::Int>/
├─•
└─•
```
This change is achieved by the introduction of a CaptureHint type, which is passed as an extra argument to the CaptureRouter and CaptureAllRouter constructors for the Router' type.
CaptureHint values are then used in routerLayout, to display the name and type of captured values, instead of just `<capture>` previously.
N.B.:
Because the choice smart constructor for routers can aggregate Capture combinators with different capture hints, the Capture*Router constructors actually take a list of CaptureHint, instead of a single one.
This PR also introduces Spec tests for the routerLayout function.
Warning:
This change is potentially breaking, because it adds the constraint `Typeable a` to all types that are to be captured. Because all types are typeable since GHC 7.10, this is not as bad as it sounds ; it only break expressions where `a` is quantified in an expression with `Capture a`.
In those cases, the fix is easy: it suffices to add `Typeable a` to the left-hand side of the quantification constraint.
For instance, the following code will no longer compile:
```haskell
type MyAPI a = Capture "foo" a :> Get '[JSON] ()
myServer :: forall a. Server (MyAPI a)
myServer = const $ return ()
myApi :: forall a. Proxy (MyAPI a)
myApi = Proxy
app :: forall a. (FromHttpApiData a) => Application
app = serve (myApi @a) (myServer @a)
```
Indeed, `app` should be replaced with:
```haskell
app :: forall a. (FromHttpApiData a, Typeable a) => Application
app = serve (myApi @a) (myServer @a)
```
}

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@ -1,13 +0,0 @@
synopsis: Encode captures using toEncodedUrlPiece
prs: #1569
issues: #1511
description: {
The `servant-client` library now makes direct use of `toEncodedUrlPiece` from `ToHttpApiData`
to encode captured values when building the request path. It gives user freedom to implement
URL-encoding however they need.
Previous behavior was to use `toUrlPiece` and URL-encode its output using `toEncodedUrlPiece`
from the `Text` instance of `ToHttpApiData`. The issue with this approach is that
`ToHttpApiData Text` is overly zealous and also encodes characters, such as `*`, which are perfectly valid in a URL.
}

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@ -1,2 +0,0 @@
synopsis: Add API docs for ServerT
prs: #1573

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@ -1,12 +0,0 @@
synopsis: Allow IO in validationKeys
prs: #1580
issues: #1579
description: {
Currently validationKeys are a fixed JWKSet. This does not work with OIDC
providers such as AWS Cognito or Okta, which regularly fetching jwks_uri to
discover new and expired keys.
This change alters the type of validationKeys from JWKSet to IO JWKSet.
}

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@ -1,2 +0,0 @@
synopsis: Only include question mark for nonempty query strings
prs: 1589

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@ -1,2 +0,0 @@
synopsis: Run ClientEnv's makeClientRequest in IO.
prs: #1595

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@ -1,10 +0,0 @@
synopsis: Handle Cookies correctly for RunStreamingClient
prs: #1606
issues: #1605
description: {
Makes performWithStreamingRequest take into consideration the
CookieJar, which it previously didn't.
}

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@ -1,2 +0,0 @@
synopsis: Add Functor instance to AuthHandler.
prs: #1638

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@ -1,8 +0,0 @@
synopsis: Add HasStatus instance for Headers (that defers StatusOf to underlying value)
prs: #1649
description: {
Adds a new HasStatus (Headers hs a) instance (StatusOf (Headers hs a) = StatusOf a)
}

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@ -1,16 +0,0 @@
synopsis: Add sample cURL requests to generated documentation
prs: #1401
description: {
Add sample cURL requests to generated documentation.
Those supplying changes to the Request `header` field manually using
lenses will need to add a sample bytestring value.
`headers <>~ ["unicorn"]`
becomes
`headers <>~ [("unicorn", "sample value")]`
}

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@ -10,7 +10,7 @@ BUILDDIR = _build
# Put it first so that "make" without argument is like "make help".
help:
@if [ ! -d venv ]; then echo "WARNING: There is no venv directory, did you forget to 'virtualenv venv'. Check README.md."; fi
@if [ ! -d venv ]; then echo "WARNING: There is no venv directory, did you forget to 'virtualenv venv'. Check building-the-docs file."; fi
@if [ ! "z$$(which $(SPHINXBUILD))" = "z$$(pwd)/venv/bin/sphinx-build" ]; then echo "WARNING: Did you forgot to 'source venv/bin/activate'"; fi
@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)

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@ -46,7 +46,7 @@ master_doc = 'index'
# General information about the project.
project = u'Servant'
copyright = u'2022, Servant Contributors'
copyright = u'2018, Servant Contributors'
author = u'Servant Contributors'
# The version info for the project you're documenting, acts as replacement for
@ -169,3 +169,4 @@ texinfo_documents = [
source_parsers = {
'.lhs': CommonMarkParser,
}

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@ -1,14 +1,14 @@
cabal-version: 2.2
name: cookbook-basic-auth
version: 0.1
synopsis: Basic Authentication cookbook example
homepage: http://docs.servant.dev/
license: BSD-3-Clause
license: BSD3
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.3, GHC ==8.10.1
executable cookbook-basic-auth
main-is: BasicAuth.lhs

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@ -1,14 +1,14 @@
cabal-version: 2.2
name: cookbook-basic-streaming
version: 2.1
synopsis: Streaming in servant without streaming libs
homepage: http://docs.servant.dev/
license: BSD-3-Clause
license: BSD3
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.3, GHC ==8.10.1
executable cookbook-basic-streaming
main-is: Streaming.lhs

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@ -24,6 +24,7 @@ Language extensions and imports:
import Control.Lens ((^.))
import Data.Aeson
import Data.Aeson.Text
import Data.Monoid ((<>))
import Data.Proxy (Proxy (Proxy))
import Data.Text (Text)
import Data.Text.Encoding (decodeUtf8)

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@ -1,19 +1,16 @@
cabal-version: 2.2
name: cookbook-curl-mock
version: 0.1
synopsis: Generate curl mock requests cookbook example
homepage: http://docs.servant.dev
license: BSD-3-Clause
license: BSD3
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.3, GHC ==8.10.1
executable cookbock-curl-mock
if impl(ghc >= 9.2)
-- generic-arbitrary is incompatible
buildable: False
main-is: CurlMock.lhs
build-depends: base == 4.*
, aeson

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@ -20,6 +20,7 @@ Extensions and imports:
import Data.Aeson
import Data.Proxy
import Data.Text
import Data.Semigroup
import GHC.Generics
import Network.Wai
import Network.Wai.Handler.Warp

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@ -1,14 +1,14 @@
cabal-version: 2.2
name: cookbook-custom-errors
version: 0.1
synopsis: Return custom error messages from combinators
homepage: http://docs.servant.dev
license: BSD-3-Clause
license: BSD3
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.3, GHC ==8.10.1
executable cookbook-custom-errors
main-is: CustomErrors.lhs

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@ -1,13 +1,13 @@
cabal-version: 2.2
name: mysql-basics
version: 0.1.0.0
synopsis: Simple MySQL API cookbook example
homepage: http://docs.servant.dev/
license: BSD-3-Clause
license: BSD3
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
cabal-version: >=1.10
executable run
hs-source-dirs: .

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@ -1,14 +1,14 @@
cabal-version: 2.2
name: cookbook-db-postgres-pool
version: 0.1
synopsis: Simple PostgreSQL connection pool cookbook example
homepage: http://docs.servant.dev/
license: BSD-3-Clause
license: BSD3
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.3, GHC ==8.10.1
executable cookbook-db-postgres-pool
main-is: PostgresPool.lhs

View file

@ -1,14 +1,14 @@
cabal-version: 2.2
name: cookbook-db-sqlite-simple
version: 0.1
synopsis: Simple SQLite DB cookbook example
homepage: http://docs.servant.dev/
license: BSD-3-Clause
license: BSD3
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.3, GHC ==8.10.1
executable cookbook-db-sqlite-simple
main-is: DBConnection.lhs
@ -23,7 +23,7 @@ executable cookbook-db-sqlite-simple
, http-types >= 0.12
, markdown-unlit >= 0.4
, http-client >= 0.5
, sqlite-simple >= 0.4.5.0
, sqlite-simple >= 0.4
, transformers
default-language: Haskell2010
ghc-options: -Wall -pgmL markdown-unlit

View file

@ -1,14 +1,14 @@
cabal-version: 2.2
name: cookbook-file-upload
version: 0.1
synopsis: File upload cookbook example
homepage: http://docs.servant.dev/
license: BSD-3-Clause
license: BSD3
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.3, GHC ==8.10.1
executable cookbook-file-upload
main-is: FileUpload.lhs

View file

@ -1,14 +1,14 @@
cabal-version: 2.2
name: cookbook-generic
version: 0.1
synopsis: Using custom monad to pass a state between handlers
homepage: http://docs.servant.dev/
license: BSD-3-Clause
license: BSD3
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.3, GHC ==8.10.1
executable cookbook-using-custom-monad
main-is: Generic.lhs

View file

@ -1,17 +1,17 @@
cabal-version: 2.2
name: cookbook-hoist-server-with-context
version: 0.0.1
synopsis: JWT and basic access authentication with a Custom Monad cookbook example
description: Using servant-auth to support both JWT-based and basic
authentication.
homepage: http://docs.servant.dev/
license: BSD-3-Clause
license: BSD3
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
category: Servant
build-type: Simple
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.3, GHC ==8.10.1
executable cookbook-hoist-server-with-context
main-is: HoistServerWithContext.lhs
@ -24,7 +24,7 @@ executable cookbook-hoist-server-with-context
, servant
, servant-server
, servant-auth >= 0.3.2
, servant-auth-server >= 0.4.4.0
, servant-auth-server
, time
, warp >= 3.2
, wai >= 3.2

View file

@ -1,14 +1,14 @@
cabal-version: 2.2
name: cookbook-https
version: 0.1
synopsis: HTTPS cookbook example
homepage: http://docs.servant.dev/
license: BSD-3-Clause
license: BSD3
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.3, GHC ==8.10.1
executable cookbook-https
main-is: Https.lhs
@ -17,7 +17,7 @@ executable cookbook-https
, servant-server
, wai >= 3.2
, warp >= 3.2
, warp-tls >= 3.2.9
, warp-tls >= 3.2
, markdown-unlit >= 0.4
default-language: Haskell2010
ghc-options: -Wall -pgmL markdown-unlit

View file

@ -6,8 +6,8 @@ how to solve many common problems with servant. If you're
interested in contributing examples of your own, feel free
to open an issue or a pull request on
`our github repository <https://github.com/haskell-servant/servant>`_
or even to just get in touch with us on the `**#haskell-servant** IRC channel
on libera.chat <https://web.libera.chat/#haskell-servant>_ or on
or even to just get in touch with us on the **#servant** IRC channel
on freenode or on
`the mailing list <https://groups.google.com/forum/#!forum/haskell-servant>`_.
The scope is very wide. Simple and fancy authentication schemes,
@ -37,4 +37,3 @@ you name it!
sentry/Sentry.lhs
testing/Testing.lhs
open-id-connect/OpenIdConnect.lhs
managed-resource/ManagedResource.lhs

View file

@ -1,17 +1,17 @@
cabal-version: 2.2
name: cookbook-jwt-and-basic-auth
version: 0.0.1
synopsis: JWT and basic access authentication cookbook example
description: Using servant-auth to support both JWT-based and basic
authentication.
homepage: http://docs.servant.dev/
license: BSD-3-Clause
license: BSD3
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
category: Servant
build-type: Simple
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.3, GHC ==8.10.1
executable cookbook-jwt-and-basic-auth
main-is: JWTAndBasicAuth.lhs
@ -22,7 +22,7 @@ executable cookbook-jwt-and-basic-auth
, servant
, servant-client
, servant-server
, servant-auth == 0.4.*
, servant-auth ==0.3.*
, servant-auth-server >= 0.3.1.0
, warp >= 3.2
, wai >= 3.2

View file

@ -1,114 +0,0 @@
# Request-lifetime Managed Resources
Let's see how we can write a handle that uses a resource managed by Servant. The resource is created automatically by Servant when the server recieves a request, and the resource is automatically destroyed when the server is finished handling a request.
As usual, we start with a little bit of throat clearing.
``` haskell
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE TypeOperators #-}
import Control.Concurrent
import Control.Exception (bracket, throwIO)
import Control.Monad.IO.Class
import Control.Monad.Trans.Resource
import Data.Acquire
import Network.HTTP.Client (newManager, defaultManagerSettings)
import Network.Wai.Handler.Warp
import Servant
import Servant.Client
import System.IO
```
Here we define an API type that uses the `WithResource` combinator. The server handler for an endpoint with a `WithResource res` component will receive a value of that type as an argument.
``` haskell
type API = WithResource Handle :> ReqBody '[PlainText] String :> Post '[JSON] NoContent
api :: Proxy API
api = Proxy
```
But this resource value has to come from somewhere. Servant obtains the value using an Acquire provided in the context. The Acquire knows how to both create and destroy resources of a particular type.
``` haskell
appContext :: Context '[Acquire Handle]
appContext = acquireHandle :. EmptyContext
acquireHandle :: Acquire Handle
acquireHandle = mkAcquire newHandle closeHandle
newHandle :: IO Handle
newHandle = do
putStrLn "opening file"
h <- openFile "test.txt" AppendMode
putStrLn "opened file"
return h
closeHandle :: Handle -> IO ()
closeHandle h = do
putStrLn "closing file"
hClose h
putStrLn "closed file"
```
Now we create the handler which will use this resource. This handler will write the request message to the System.IO.Handle which was provided to us. In some situations the handler will succeed, but in some in will fail. In either case, Servant will clean up the resource for us.
``` haskell
server :: Server API
server = writeToFile
where writeToFile :: (ReleaseKey, Handle) -> String -> Handler NoContent
writeToFile (_, h) msg = case msg of
"illegal" -> error "wait, that's illegal!"
legalMsg -> liftIO $ do
putStrLn "writing file"
hPutStrLn h legalMsg
putStrLn "wrote file"
return NoContent
```
Finally we run the server in the background while we post messages to it.
``` haskell
runApp :: IO ()
runApp = run 8080 (serveWithContext api appContext $ server)
postMsg :: String -> ClientM NoContent
postMsg = client api
main :: IO ()
main = do
mgr <- newManager defaultManagerSettings
bracket (forkIO $ runApp) killThread $ \_ -> do
ms <- flip runClientM (mkClientEnv mgr (BaseUrl Http "localhost" 8080 "")) $ do
liftIO $ putStrLn "sending hello message"
_ <- postMsg "hello"
liftIO $ putStrLn "sending illegal message"
_ <- postMsg "illegal"
liftIO $ putStrLn "done"
print ms
```
This program prints
```
sending hello message
opening file
opened file
writing file
wrote file
closing file
closed file
sending illegal message
opening file
opened file
closing file
closed file
wait, that's illegal!
CallStack (from HasCallStack):
error, called at ManagedResource.lhs:63:24 in main:Main
Left (FailureResponse (Request {requestPath = (BaseUrl {baseUrlScheme = Http, baseUrlHost = "localhost", baseUrlPort = 8080, baseUrlPath = ""},""), requestQueryString = fromList [], requestBody = Just ((),text/plain;charset=utf-8), requestAccept = fromList [], requestHeaders = fromList [], requestHttpVersion = HTTP/1.1, requestMethod = "POST"}) (Response {responseStatusCode = Status {statusCode = 500, statusMessage = "Internal Server Error"}, responseHeaders = fromList [("Transfer-Encoding","chunked"),("Date","Thu, 24 Nov 2022 21:04:47 GMT"),("Server","Warp/3.3.23"),("Content-Type","text/plain; charset=utf-8")], responseHttpVersion = HTTP/1.1, responseBody = "Something went wrong"}))
```
and appends to a file called `test.txt`. We can see from the output that when a legal message is sent, the file is opened, written to, and closed. We can also see that when an illegal message is sent, the file is opened but not written to. Crucially, it is still closed even though the handler threw an exception.

View file

@ -1,30 +0,0 @@
cabal-version: 2.2
name: cookbook-managed-resource
version: 0.1
synopsis: Simple managed resource cookbook example
homepage: http://docs.servant.dev/
license: BSD-3-Clause
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
tested-with: GHC==9.4.2
executable cookbook-managed-resource
main-is: ManagedResource.lhs
build-depends: base == 4.*
, text >= 1.2
, aeson >= 1.2
, servant
, servant-client
, servant-server
, warp >= 3.2
, wai >= 3.2
, http-types >= 0.12
, markdown-unlit >= 0.4
, http-client >= 0.5
, transformers
, resourcet
default-language: Haskell2010
ghc-options: -Wall -pgmL markdown-unlit
build-tool-depends: markdown-unlit:markdown-unlit

View file

@ -1,14 +1,14 @@
cabal-version: 2.2
name: open-id-connect
version: 0.1
synopsis: OpenId Connect with Servant example
homepage: http://haskell-servant.readthedocs.org/
license: BSD-3-Clause
license: BSD3
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
tested-with: GHC==8.6.5
cabal-version: >= 1.10
tested-with: GHC==8.4.4, GHC==8.6.5
executable cookbook-openidconnect
main-is: OpenIdConnect.lhs

View file

@ -330,7 +330,7 @@ data Customer = Customer {
```
Here is the code that displays the homepage.
It should contain a link to the `/login` URL.
It should contain a link to the the `/login` URL.
When the user clicks on this link it will be redirected to Google login page
with some generated information.

View file

@ -1,14 +1,14 @@
cabal-version: 2.2
name: cookbook-pagination
version: 2.1
synopsis: Pagination with Servant example
homepage: http://docs.servant.dev/
license: BSD-3-Clause
license: BSD3
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.3, GHC ==8.10.1
executable cookbook-pagination
main-is: Pagination.lhs

View file

@ -1,14 +1,14 @@
cabal-version: 2.2
name: cookbook-sentry
version: 0.1
synopsis: Collecting runtime exceptions using Sentry
homepage: http://docs.servant.dev/
license: BSD-3-Clause
license: BSD3
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.3, GHC ==8.10.1
executable cookbook-sentry
main-is: Sentry.lhs

View file

@ -1,14 +1,14 @@
cabal-version: 2.2
name: cookbook-structuring-apis
version: 0.1
synopsis: Example that shows how APIs can be structured
homepage: http://docs.servant.dev/
license: BSD-3-Clause
license: BSD3
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.3, GHC ==8.10.1
executable cookbook-structuring-apis
main-is: StructuringApis.lhs

View file

@ -1,16 +1,16 @@
cabal-version: 2.2
name: cookbook-testing
version: 0.0.1
synopsis: Common testing patterns in Servant apps
description: This recipe includes various strategies for writing tests for Servant.
homepage: http://docs.servant.dev/
license: BSD-3-Clause
license: BSD3
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
category: Servant
build-type: Simple
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.3, GHC ==8.10.1
executable cookbook-testing
main-is: Testing.lhs

View file

@ -1,14 +1,14 @@
cabal-version: 2.2
name: cookbook-using-custom-monad
version: 0.1
synopsis: Using custom monad to pass a state between handlers
homepage: http://docs.servant.dev/
license: BSD-3-Clause
license: BSD3
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.3, GHC ==8.10.1
executable cookbook-using-custom-monad
main-is: UsingCustomMonad.lhs

View file

@ -119,7 +119,7 @@ Now we can use `servant-client`'s internals to convert servant's `Request`
to http-client's `Request`, and we can inspect it:
```haskell
req' <- I.defaultMakeClientRequest burl req
let req' = I.defaultMakeClientRequest burl req
putStrLn $ "Making request: " ++ show req'
```

View file

@ -1,14 +1,14 @@
cabal-version: 2.2
name: cookbook-using-free-client
version: 0.1
synopsis: Using Free client
homepage: http://docs.servant.dev/
license: BSD-3-Clause
license: BSD3
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.3, GHC ==8.10.1
executable cookbook-using-free-client
main-is: UsingFreeClient.lhs

View file

@ -4,19 +4,12 @@ Servant allows you to talk about the exceptions you throw in your API
types. This is not limited to actual exceptions, you can write
handlers that respond with arbitrary open unions of types.
## Compatibility
:warning: This cookbook is compatible with GHC 8.6.1 or higher :warning:
## Preliminaries
```haskell
{-# LANGUAGE ConstraintKinds #-}
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE DerivingStrategies #-}
{-# LANGUAGE DeriveAnyClass #-}
{-# LANGUAGE DerivingVia #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
@ -161,8 +154,12 @@ Example usage:
```haskell
data Foo = Foo Int Int Int
deriving (Show, Eq, GHC.Generic, ToJSON)
deriving HasStatus via WithStatus 200 Foo
deriving (Show, Eq, GHC.Generic)
instance ToJSON Foo
instance HasStatus Foo where
type StatusOf Foo = 200
data Bar = Bar
deriving (Show, Eq, GHC.Generic)
@ -199,7 +196,7 @@ parsers in the hope that the ones that should will always error out so
you can try until the right one returns a value.)
[servant-exceptions](https://github.com/ch1bo/servant-exceptions) is
another shot at the problem. It is inspired by
another shot at at the problem. It is inspired by
servant-checked-exceptions, so it may be worth taking a closer look.
The README claims that
[cardano-sl](https://github.com/input-output-hk/cardano-sl) also has

View file

@ -1,16 +1,16 @@
cabal-version: 2.2
name: cookbook-uverb
version: 0.0.1
synopsis: How to use the 'UVerb' type.
description: Listing alternative responses and exceptions in your API types.
homepage: http://docs.servant.dev/
license: BSD-3-Clause
license: BSD3
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
category: Servant
build-type: Simple
tested-with: GHC==8.6.5, GHC==8.8.4, GHC==8.10.7
cabal-version: >=1.10
tested-with: GHC==8.6.5, GHC==8.8.4, GHC==8.10.1
executable cookbook-uverb
main-is: UVerb.lhs
@ -28,8 +28,6 @@ executable cookbook-uverb
, swagger2
, wai
, warp
if impl(ghc >= 9)
buildable: False
default-language: Haskell2010
default-language: Haskell2010
ghc-options: -Wall -pgmL markdown-unlit
build-tool-depends: markdown-unlit:markdown-unlit

View file

@ -12,7 +12,7 @@ Helpful Links
`https://github.com/haskell-servant/servant/issues <https://github.com/haskell-servant/servant/issues>`_
- the irc channel:
`#haskell-servant on libera.chat <https://web.libera.chat/#haskell-servant>`_
``#servant`` on freenode
- the mailing list:
`groups.google.com/forum/#!forum/haskell-servant <https://groups.google.com/forum/#!forum/haskell-servant>`_

View file

@ -1,4 +1,3 @@
recommonmark==0.5.0
Sphinx==1.8.4
sphinx_rtd_theme>=0.4.2
jinja2<3.1.0

View file

@ -389,30 +389,3 @@ One example for this is if you want to serve a directory of static files along
with the rest of your API. But you can plug in everything that is an
`Application`, e.g. a whole web application written in any of the web
frameworks that support `wai`.
Be mindful! The `servant-server`'s router works by pattern-matching the
different routes that are composed using `:<|>`. `Raw`, as an escape hatch,
matches any route that hasn't been matched by previous patterns. Therefore,
any subsequent route will be silently ignored.
``` haskell
type UserAPI14 = Raw
:<|> "users" :> Get '[JSON] [User]
-- In this situation, the /users endpoint
-- will not be reachable because the Raw
-- endpoint matches requests before
```
A simple way to avoid this pitfall is to either use `Raw` as the last
definition, or to always have it under a static path.
``` haskell
type UserAPI15 = "files" :> Raw
-- The raw endpoint is under the /files
-- static path, so it won't match /users.
:<|> "users" :> Get '[JSON] [User]
type UserAPI16 = "users" :> Get '[JSON] [User]
:<|> Raw
-- The Raw endpoint is matched last, so
-- it won't overlap another endpoint.
```

View file

@ -47,6 +47,7 @@ module Authentication where
import Data.Aeson (ToJSON)
import Data.ByteString (ByteString)
import Data.Map (Map, fromList)
import Data.Monoid ((<>))
import qualified Data.Map as Map
import Data.Proxy (Proxy (Proxy))
import Data.Text (Text)
@ -132,7 +133,7 @@ combinator. Using `Context`, we can supply a function of type
handler. This will allow the handler to check authentication and return a `User`
to downstream handlers if successful.
In practice we wrap `BasicAuthData -> Handler User` into a slightly
In practice we wrap `BasicAuthData -> Handler` into a slightly
different function to better capture the semantics of basic authentication:
``` haskell ignore

View file

@ -6,10 +6,46 @@ This is an introductory tutorial to **servant**. Whilst browsing is fine, it mak
Any comments, issues or feedback about the tutorial can be submitted
to `servant's issue tracker <http://github.com/haskell-servant/servant/issues>`_.
cabal-install
--------
The whole tutorial is a `cabal <https://cabal.readthedocs.io/en/latest/>`_
project and can be built locally as follows:
.. code-block:: bash
$ git clone https://github.com/haskell-servant/servant.git
$ cd servant
# build
$ cabal new-build tutorial
# load in ghci to play with it
$ cabal new-repl tutorial
stack
--------
The servant `stack <https://docs.haskellstack.org/en/stable/README/>`_ template includes the working tutorial. To initialize this template, run:
.. code-block:: bash
$ stack new myproj servant
$ cd myproj
# build
$ stack build
# start server
$ stack exec myproj-exe
The code can be found in the `*.lhs` files under `doc/tutorial/` in the
repository. Feel free to edit it while you're reading this documentation and
see the effect of your changes.
`Nix <https://nixos.org/nix/>`_ users should feel free to take a look at
the `nix/shell.nix` file in the repository and use it to provision a suitable
environment to build and run the examples.
.. toctree::
:maxdepth: 1
install.rst
ApiType.lhs
Server.lhs
Client.lhs

View file

@ -1,68 +0,0 @@
Install
========
cabal-install
--------
The whole tutorial is a `cabal <https://cabal.readthedocs.io/en/latest/>`_
project and can be built locally as follows:
.. code-block:: bash
$ git clone https://github.com/haskell-servant/servant.git
$ cd servant
# build
$ cabal new-build tutorial
# load in ghci to play with it
$ cabal new-repl tutorial
stack
--------
The servant `stack <https://docs.haskellstack.org/en/stable/README/>`_ template includes the working tutorial. To initialize this template, run:
.. code-block:: bash
$ stack new myproj servant
$ cd myproj
# build
$ stack build
# start server
$ stack exec myproj-exe
The code can be found in the `*.lhs` files under `doc/tutorial/` in the
repository. Feel free to edit it while you're reading this documentation and
see the effect of your changes.
nix
--------
`Nix <https://nixos.org/nix/>`_ users should feel free to take a look at
the `nix/shell.nix` file in the repository and use it to provision a suitable
environment to build and run the examples.
Note for Ubuntu users
--------
Ubuntu's packages for `ghc`, `cabal`, and `stack` are years out of date.
If the instructions above fail for you,
try replacing the Ubuntu packages with up-to-date versions.
First remove the installed versions:
.. code-block:: bash
# remove the obsolete versions
$ sudo apt remove ghc haskell-stack cabal-install
Then install fresh versions of the Haskell toolchain
using the `ghcup <https://www.haskell.org/ghcup/install/>`_ installer.
As of February 2022, one easy way to do this is by running a bootstrap script:
.. code-block:: bash
$ curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | sh
The script is interactive and will prompt you for details about what
you want installed and where. To install manually,
see `the detailed instructions <https://www.haskell.org/ghcup/install/#manual-install>`_.

View file

@ -1,4 +1,3 @@
cabal-version: 2.2
name: tutorial
version: 0.10
synopsis: The servant tutorial
@ -7,14 +6,18 @@ description:
<http://docs.servant.dev/>
homepage: http://docs.servant.dev/
category: Servant, Documentation
license: BSD-3-Clause
license: BSD3
license-file: LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
cabal-version: >=1.10
tested-with:
GHC==8.0.2
GHC==8.2.2
GHC==8.4.4
GHC==8.6.5
GHC==8.8.3, GHC ==8.10.7
GHC==8.8.3, GHC ==8.10.1
extra-source-files:
static/index.html
static/ui.js
@ -64,10 +67,10 @@ library
, blaze-markup >= 0.8.0.0 && < 0.9
, cookie >= 0.4.3 && < 0.5
, js-jquery >= 3.3.1 && < 3.4
, lucid >= 2.9.11 && < 2.12
, random >= 1.1 && < 1.3
, lucid >= 2.9.11 && < 2.10
, random >= 1.1 && < 1.2
, servant-js >= 0.9 && < 0.10
, time >= 1.6.0.1 && < 1.13
, time >= 1.6.0.1 && < 1.10
-- For legacy tools, we need to specify build-depends too
build-depends: markdown-unlit >= 0.5.0 && <0.6

View file

@ -1,22 +0,0 @@
let reflex-platform = import (builtins.fetchTarball
{ name = "reflex-platform";
url = "https://github.com/reflex-frp/reflex-platform/archive/1aba6f367982bd6dd78ec2fda75ab246a62d32c5.tar.gz";
}) {};
pkgs = import ./nix/nixpkgs.nix; in
pkgs.stdenv.mkDerivation {
name = "ghcjs-shell";
buildInputs =
[ (reflex-platform.ghcjs.ghcWithPackages (p: with p; [
attoparsec
hashable
]))
pkgs.cabal-install
pkgs.gmp
pkgs.haskellPackages.cabal-plan
pkgs.haskellPackages.hspec-discover
pkgs.nodejs
pkgs.perl
pkgs.zlib
];
}

View file

@ -21,21 +21,3 @@ a particular ghc version, e.g:
``` sh
$ nix-shell nix/shell.nix --argstr compiler ghcHEAD
```
**Possible GHC versions**
- `ghc865Binary`
- `ghc884`
- `ghc8104` - default
- `ghc901`
### Cabal users
GHC version can be chosen via the nix-shell parameter
`cabal build all`
### Stack version
Since the ghc version is set by the LTS version, it is preferable to use the `ghc8104` version parameter for the nix-shell.
`stack --no-nix --system-ghc <command>`

View file

@ -1,4 +0,0 @@
import (builtins.fetchTarball {
url = "https://github.com/NixOS/nixpkgs/archive/refs/tags/21.05.tar.gz";
sha256 = "sha256:1ckzhh24mgz6jd1xhfgx0i9mijk6xjqxwsshnvq789xsavrmsc36";
}) {}

View file

@ -1,20 +1,21 @@
{ compiler ? "ghc8104"
{ pkgs ? import <nixpkgs> {}
, compiler ? "ghc822"
, tutorial ? false
, pkgs ? import ./nixpkgs.nix
}:
with pkgs;
let
ghc = haskell.packages.${compiler}.ghcWithPackages (_: []);
docstuffs = python3.withPackages (ps: with ps; [ recommonmark sphinx sphinx_rtd_theme ]);
in
stdenv.mkDerivation {
name = "servant-dev";
buildInputs = [ ghc zlib python3 wget cabal-install postgresql openssl stack haskellPackages.hspec-discover ]
++ (if tutorial then [docstuffs postgresql] else []);
shellHook = ''
eval $(grep export ${ghc}/bin/ghc)
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:"${zlib}/lib";
'';
}
with pkgs;
let
ghc = haskell.packages.${compiler}.ghcWithPackages (_: []);
docstuffs = python3.withPackages (ps: with ps; [ recommonmark sphinx sphinx_rtd_theme ]);
in
stdenv.mkDerivation {
name = "servant-dev";
buildInputs = [ ghc zlib python3 wget ]
++ (if tutorial then [docstuffs postgresql] else []);
shellHook = ''
eval $(grep export ${ghc}/bin/ghc)
export LD_LIBRARY_PATH="${zlib}/lib";
'';
}

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@ -1 +0,0 @@
servant-auth-server/README.lhs

View file

@ -1 +0,0 @@
:set -isrc -itest -idoctest/ghci-wrapper/src

View file

@ -1,26 +0,0 @@
# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
and this project adheres to [PVP Versioning](https://pvp.haskell.org/).
## [Unreleased]
## [0.4.1.0] - 2020-10-06
- Support generic Bearer token auth
## [0.4.0.0] - 2019-03-08
## Changed
- #145 Support servant-0.16 in tests @domenkozar
- #145 Drop GHC 7.10 support @domenkozar
## [0.3.3.0] - 2018-06-18
### Added
- Support for GHC 8.4 by @phadej
- Support for servant-0.14 by @phadej
- Changelog by @domenkozar

View file

@ -1,31 +0,0 @@
Copyright Julian K. Arni (c) 2015
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following
disclaimer in the documentation and/or other materials provided
with the distribution.
* Neither the name of Julian K. Arni nor the names of other
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

View file

@ -1,2 +0,0 @@
import Distribution.Simple
main = defaultMain

View file

@ -1,80 +0,0 @@
cabal-version: 2.2
name: servant-auth-client
version: 0.4.1.0
synopsis: servant-client/servant-auth compatibility
description: This package provides instances that allow generating clients from
<https://hackage.haskell.org/package/servant servant>
APIs that use
<https://hackage.haskell.org/package/servant-auth servant-auth's> @Auth@ combinator.
.
For a quick overview of the usage, see the <https://github.com/haskell-servant/servant/tree/master/servant-auth#readme README>.
category: Web, Servant, Authentication
homepage: https://github.com/haskell-servant/servant/tree/master/servant-auth#readme
bug-reports: https://github.com/haskell-servant/servant/issues
author: Julian K. Arni
maintainer: jkarni@gmail.com
copyright: (c) Julian K. Arni
license: BSD-3-Clause
license-file: LICENSE
tested-with: GHC ==8.6.5 || ==8.8.4 || ==8.10.4 || ==9.0.1
build-type: Simple
extra-source-files:
CHANGELOG.md
source-repository head
type: git
location: https://github.com/haskell-servant/servant
library
hs-source-dirs:
src
default-extensions: ConstraintKinds DataKinds DefaultSignatures DeriveFoldable DeriveFunctor DeriveGeneric DeriveTraversable FlexibleContexts FlexibleInstances FunctionalDependencies GADTs KindSignatures MultiParamTypeClasses OverloadedStrings RankNTypes ScopedTypeVariables TypeFamilies TypeOperators
ghc-options: -Wall
build-depends:
base >= 4.10 && < 4.18
, bytestring >= 0.10.6.0 && < 0.12
, containers >= 0.5.6.2 && < 0.7
, servant-auth == 0.4.*
, servant >= 0.13 && < 0.20
, servant-client-core >= 0.13 && < 0.20
exposed-modules:
Servant.Auth.Client
Servant.Auth.Client.Internal
default-language: Haskell2010
test-suite spec
type: exitcode-stdio-1.0
main-is: Spec.hs
hs-source-dirs:
test
default-extensions: ConstraintKinds DataKinds DefaultSignatures DeriveFoldable DeriveFunctor DeriveGeneric DeriveTraversable FlexibleContexts FlexibleInstances FunctionalDependencies GADTs KindSignatures MultiParamTypeClasses OverloadedStrings RankNTypes ScopedTypeVariables TypeFamilies TypeOperators
ghc-options: -Wall
build-tool-depends: hspec-discover:hspec-discover >=2.5.5 && <2.10
-- dependencies with bounds inherited from the library stanza
build-depends:
base
, servant-client
, servant-auth
, servant
, servant-auth-client
-- test dependencies
build-depends:
hspec >= 2.5.5 && < 2.10
, QuickCheck >= 2.11.3 && < 2.15
, aeson >= 1.3.1.1 && < 3
, bytestring >= 0.10.6.0 && < 0.12
, http-client >= 0.5.13.1 && < 0.8
, http-types >= 0.12.2 && < 0.13
, servant-auth-server >= 0.4.2.0 && < 0.5
, servant-server >= 0.13 && < 0.20
, time >= 1.5.0.1 && < 1.13
, transformers >= 0.4.2.0 && < 0.6
, wai >= 3.2.1.2 && < 3.3
, warp >= 3.2.25 && < 3.4
, jose >= 0.10 && < 0.11
other-modules:
Servant.Auth.ClientSpec
default-language: Haskell2010

View file

@ -1,3 +0,0 @@
module Servant.Auth.Client (Token(..), Bearer) where
import Servant.Auth.Client.Internal (Bearer, Token(..))

View file

@ -1,64 +0,0 @@
{-# LANGUAGE CPP #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
{-# LANGUAGE UndecidableInstances #-}
{-# OPTIONS_GHC -fno-warn-orphans #-}
#if __GLASGOW_HASKELL__ == 800
{-# OPTIONS_GHC -fno-warn-redundant-constraints #-}
#endif
module Servant.Auth.Client.Internal where
import qualified Data.ByteString as BS
import Data.Monoid
import Data.Proxy (Proxy (..))
import Data.String (IsString)
import GHC.Exts (Constraint)
import GHC.Generics (Generic)
import Servant.API ((:>))
import Servant.Auth
import Servant.Client.Core
import Data.Sequence ((<|))
-- | A simple bearer token.
newtype Token = Token { getToken :: BS.ByteString }
deriving (Eq, Show, Read, Generic, IsString)
type family HasBearer xs :: Constraint where
HasBearer (Bearer ': xs) = ()
HasBearer (JWT ': xs) = ()
HasBearer (x ': xs) = HasBearer xs
HasBearer '[] = BearerAuthNotEnabled
class BearerAuthNotEnabled
-- | @'HasBearer' auths@ is nominally a redundant constraint, but ensures we're not
-- trying to send a token to an API that doesn't accept them.
instance (HasBearer auths, HasClient m api) => HasClient m (Auth auths a :> api) where
type Client m (Auth auths a :> api) = Token -> Client m api
clientWithRoute m _ req (Token token)
= clientWithRoute m (Proxy :: Proxy api)
$ req { requestHeaders = ("Authorization", headerVal) <| requestHeaders req }
where
headerVal = "Bearer " <> token
#if MIN_VERSION_servant_client_core(0,14,0)
hoistClientMonad pm _ nt cl = hoistClientMonad pm (Proxy :: Proxy api) nt . cl
#endif
-- * Authentication combinators
-- | A Bearer token in the Authorization header:
--
-- @Authorization: Bearer <token>@
--
-- This can be any token recognized by the server, for example,
-- a JSON Web Token (JWT).
--
-- Note that, since the exact way the token is validated is not specified,
-- this combinator can only be used in the client. The server would not know
-- how to validate it, while the client does not care.
-- If you want to implement Bearer authentication in your server, you have to
-- choose a specific combinator, such as 'JWT'.
data Bearer

View file

@ -1,161 +0,0 @@
{-# LANGUAGE CPP #-}
{-# LANGUAGE DeriveAnyClass #-}
module Servant.Auth.ClientSpec (spec) where
import Crypto.JOSE (JWK,
KeyMaterialGenParam (OctGenParam),
genJWK)
import Data.Aeson (FromJSON (..), ToJSON (..))
import qualified Data.ByteString.Lazy as BSL
import Data.Time (UTCTime, defaultTimeLocale,
parseTimeOrError)
import GHC.Generics (Generic)
import Network.HTTP.Client (Manager, defaultManagerSettings,
newManager)
import Network.HTTP.Types (status401)
import Network.Wai.Handler.Warp (testWithApplication)
import Servant
import Servant.Client (BaseUrl (..), Scheme (Http),
ClientError (FailureResponse),
#if MIN_VERSION_servant_client(0,16,0)
ResponseF(..),
#elif MIN_VERSION_servant_client(0,13,0)
GenResponse(..),
#elif MIN_VERSION_servant_client(0,12,0)
Response(..),
#endif
client)
import System.IO.Unsafe (unsafePerformIO)
import Test.Hspec
import Test.QuickCheck
#if MIN_VERSION_servant_client(0,13,0)
import Servant.Client (mkClientEnv, runClientM)
#elif MIN_VERSION_servant_client(0,9,0)
import Servant.Client (ClientEnv (..), runClientM)
#else
import Control.Monad.Trans.Except (runExceptT)
#endif
#if !MIN_VERSION_servant_server(0,16,0)
#define ClientError ServantError
#endif
import Servant.Auth.Client
import Servant.Auth.Server
import Servant.Auth.Server.SetCookieOrphan ()
spec :: Spec
spec = describe "The JWT combinator" $ do
hasClientSpec
------------------------------------------------------------------------------
-- * HasClient {{{
hasClientSpec :: Spec
hasClientSpec = describe "HasClient" $ around (testWithApplication $ return app) $ do
let mkTok :: User -> Maybe UTCTime -> IO Token
mkTok user mexp = do
Right tok <- makeJWT user jwtCfg mexp
return $ Token $ BSL.toStrict tok
it "succeeds when the token does not have expiry" $ \port -> property $ \user -> do
tok <- mkTok user Nothing
v <- getIntClient tok mgr (BaseUrl Http "localhost" port "")
v `shouldBe` Right (length $ name user)
it "succeeds when the token is not expired" $ \port -> property $ \user -> do
tok <- mkTok user (Just future)
v <- getIntClient tok mgr (BaseUrl Http "localhost" port "")
v `shouldBe` Right (length $ name user)
it "fails when token is expired" $ \port -> property $ \user -> do
tok <- mkTok user (Just past)
#if MIN_VERSION_servant_client(0,16,0)
Left (FailureResponse _ (Response stat _ _ _))
#elif MIN_VERSION_servant_client(0,12,0)
Left (FailureResponse (Response stat _ _ _))
#elif MIN_VERSION_servant_client(0,11,0)
Left (FailureResponse _ stat _ _)
#else
Left (FailureResponse stat _ _)
#endif
<- getIntClient tok mgr (BaseUrl Http "localhost" port "")
stat `shouldBe` status401
getIntClient :: Token -> Manager -> BaseUrl -> IO (Either ClientError Int)
#if MIN_VERSION_servant(0,13,0)
getIntClient tok m burl = runClientM (client api tok) (mkClientEnv m burl)
#elif MIN_VERSION_servant(0,9,0)
getIntClient tok m burl = runClientM (client api tok) (ClientEnv m burl)
#else
getIntClient tok m burl = runExceptT $ client api tok m burl
#endif
-- }}}
------------------------------------------------------------------------------
-- * API and Server {{{
type API = Auth '[JWT] User :> Get '[JSON] Int
api :: Proxy API
api = Proxy
theKey :: JWK
theKey = unsafePerformIO . genJWK $ OctGenParam 256
{-# NOINLINE theKey #-}
mgr :: Manager
mgr = unsafePerformIO $ newManager defaultManagerSettings
{-# NOINLINE mgr #-}
app :: Application
app = serveWithContext api ctx server
where
ctx = cookieCfg :. jwtCfg :. EmptyContext
jwtCfg :: JWTSettings
jwtCfg = defaultJWTSettings theKey
cookieCfg :: CookieSettings
cookieCfg = defaultCookieSettings
server :: Server API
server = getInt
where
getInt :: AuthResult User -> Handler Int
getInt (Authenticated u) = return . length $ name u
getInt _ = throwAll err401
-- }}}
------------------------------------------------------------------------------
-- * Utils {{{
past :: UTCTime
past = parseTimeOrError True defaultTimeLocale "%Y-%m-%d" "1970-01-01"
future :: UTCTime
future = parseTimeOrError True defaultTimeLocale "%Y-%m-%d" "2070-01-01"
-- }}}
------------------------------------------------------------------------------
-- * Types {{{
data User = User
{ name :: String
, _id :: String
} deriving (Eq, Show, Read, Generic)
instance FromJWT User
instance ToJWT User
instance FromJSON User
instance ToJSON User
instance Arbitrary User where
arbitrary = User <$> arbitrary <*> arbitrary
-- }}}

View file

@ -1 +0,0 @@
{-# OPTIONS_GHC -F -pgmF hspec-discover #-}

View file

@ -1 +0,0 @@
:set -isrc -itest -idoctest/ghci-wrapper/src

View file

@ -1,14 +0,0 @@
# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
and this project adheres to [PVP Versioning](https://pvp.haskell.org/).
## [Unreleased]
## [0.2.10.0] - 2018-06-18
### Added
- Support for GHC 8.4 by @phadej
- Changelog by @domenkozar

View file

@ -1,31 +0,0 @@
Copyright Julian K. Arni (c) 2015
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following
disclaimer in the documentation and/or other materials provided
with the distribution.
* Neither the name of Julian K. Arni nor the names of other
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

View file

@ -1,33 +0,0 @@
{-# LANGUAGE CPP #-}
{-# OPTIONS_GHC -Wall #-}
module Main (main) where
#ifndef MIN_VERSION_cabal_doctest
#define MIN_VERSION_cabal_doctest(x,y,z) 0
#endif
#if MIN_VERSION_cabal_doctest(1,0,0)
import Distribution.Extra.Doctest ( defaultMainWithDoctests )
main :: IO ()
main = defaultMainWithDoctests "doctests"
#else
#ifdef MIN_VERSION_Cabal
-- If the macro is defined, we have new cabal-install,
-- but for some reason we don't have cabal-doctest in package-db
--
-- Probably we are running cabal sdist, when otherwise using new-build
-- workflow
#warning You are configuring this package without cabal-doctest installed. \
The doctests test-suite will not work as a result. \
To fix this, install cabal-doctest before configuring.
#endif
import Distribution.Simple
main :: IO ()
main = defaultMain
#endif

View file

@ -1,84 +0,0 @@
cabal-version: 2.2
name: servant-auth-docs
version: 0.2.10.0
synopsis: servant-docs/servant-auth compatibility
description: This package provides instances that allow generating docs from
<https://hackage.haskell.org/package/servant servant>
APIs that use
<https://hackage.haskell.org/package/servant-auth servant-auth's> @Auth@ combinator.
.
For a quick overview of the usage, see the <https://github.com/haskell-servant/servant/tree/master/servant-auth#readme README>.
category: Web, Servant, Authentication
homepage: https://github.com/haskell-servant/servant/tree/master/servant-auth#readme
bug-reports: https://github.com/haskell-servant/servant/issues
author: Julian K. Arni
maintainer: jkarni@gmail.com
copyright: (c) Julian K. Arni
license: BSD-3-Clause
license-file: LICENSE
tested-with: GHC ==8.6.5 || ==8.8.4 || ==8.10.4 || ==9.0.1
build-type: Custom
extra-source-files:
CHANGELOG.md
custom-setup
setup-depends:
base, Cabal, cabal-doctest >=1.0.6 && <1.1
source-repository head
type: git
location: https://github.com/haskell-servant/servant
library
hs-source-dirs:
src
default-extensions: ConstraintKinds DataKinds DefaultSignatures DeriveFoldable DeriveFunctor DeriveGeneric DeriveTraversable FlexibleContexts FlexibleInstances FunctionalDependencies GADTs KindSignatures MultiParamTypeClasses OverloadedStrings RankNTypes ScopedTypeVariables TypeFamilies TypeOperators
ghc-options: -Wall
build-depends:
base >= 4.10 && < 4.18
, servant-docs >= 0.11.2 && < 0.13
, servant >= 0.13 && < 0.20
, servant-auth == 0.4.*
, lens >= 4.16.1 && <5.3
exposed-modules:
Servant.Auth.Docs
default-language: Haskell2010
test-suite doctests
type: exitcode-stdio-1.0
main-is: doctests.hs
build-depends:
base,
servant-auth-docs,
doctest >= 0.16 && < 0.21,
QuickCheck >= 2.11.3 && < 2.15,
template-haskell
ghc-options: -Wall -threaded
hs-source-dirs: test
default-language: Haskell2010
test-suite spec
type: exitcode-stdio-1.0
main-is: Spec.hs
hs-source-dirs:
test
default-extensions: ConstraintKinds DataKinds DefaultSignatures DeriveFoldable DeriveFunctor DeriveGeneric DeriveTraversable FlexibleContexts FlexibleInstances FunctionalDependencies GADTs KindSignatures MultiParamTypeClasses OverloadedStrings RankNTypes ScopedTypeVariables TypeFamilies TypeOperators
ghc-options: -Wall
build-tool-depends: hspec-discover:hspec-discover >=2.5.5 && <2.10
-- dependencies with bounds inherited from the library stanza
build-depends:
base
, text
, servant-docs
, servant
, servant-auth
, lens
-- test dependencies
build-depends:
servant-auth-docs
, hspec >= 2.5.5 && < 2.10
, QuickCheck >= 2.11.3 && < 2.15
default-language: Haskell2010

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@ -1,96 +0,0 @@
{-# OPTIONS_GHC -fno-warn-orphans #-}
module Servant.Auth.Docs
(
-- | The purpose of this package is provide the instance for 'servant-auth'
-- combinators needed for 'servant-docs' documentation generation.
--
-- >>> type API = Auth '[JWT, Cookie, BasicAuth] Int :> Get '[JSON] Int
-- >>> putStr $ markdown $ docs (Proxy :: Proxy API)
-- ## GET /
-- ...
-- ... Authentication
-- ...
-- This part of the API is protected by the following authentication mechanisms:
-- ...
-- * JSON Web Tokens ([JWTs](https://en.wikipedia.org/wiki/JSON_Web_Token))
-- * [Cookies](https://en.wikipedia.org/wiki/HTTP_cookie)
-- * [Basic Authentication](https://en.wikipedia.org/wiki/Basic_access_authentication)
-- ...
-- Clients must supply the following data
-- ...
-- One of the following:
-- ...
-- * A JWT Token signed with this server's key
-- * Cookies automatically set by browsers, plus a header
-- * Cookies automatically set by browsers, plus a header
-- ...
-- * Re-export
JWT
, BasicAuth
, Cookie
, Auth
) where
import Control.Lens ((%~), (&), (|>))
import Data.List (intercalate)
import Data.Monoid
import Data.Proxy (Proxy (Proxy))
import Servant.API hiding (BasicAuth)
import Servant.Auth
import Servant.Docs hiding (pretty)
import Servant.Docs.Internal (DocAuthentication (..), authInfo)
instance (AllDocs auths, HasDocs api) => HasDocs (Auth auths r :> api) where
docsFor _ (endpoint, action) =
docsFor (Proxy :: Proxy api) (endpoint, action & authInfo %~ (|> info))
where
(intro, reqData) = pretty $ allDocs (Proxy :: Proxy auths)
info = DocAuthentication intro reqData
pretty :: [(String, String)] -> (String, String)
pretty [] = error "shouldn't happen"
pretty [(i, d)] =
( "This part of the API is protected by " <> i
, d
)
pretty rs =
( "This part of the API is protected by the following authentication mechanisms:\n\n"
++ " * " <> intercalate "\n * " (fst <$> rs)
, "\nOne of the following:\n\n"
++ " * " <> intercalate "\n * " (snd <$> rs)
)
class AllDocs (x :: [*]) where
allDocs :: proxy x
-- intro, req
-> [(String, String)]
instance (OneDoc a, AllDocs as) => AllDocs (a ': as) where
allDocs _ = oneDoc (Proxy :: Proxy a) : allDocs (Proxy :: Proxy as)
instance AllDocs '[] where
allDocs _ = []
class OneDoc a where
oneDoc :: proxy a -> (String, String)
instance OneDoc JWT where
oneDoc _ =
("JSON Web Tokens ([JWTs](https://en.wikipedia.org/wiki/JSON_Web_Token))"
, "A JWT Token signed with this server's key")
instance OneDoc Cookie where
oneDoc _ =
("[Cookies](https://en.wikipedia.org/wiki/HTTP_cookie)"
, "Cookies automatically set by browsers, plus a header")
instance OneDoc BasicAuth where
oneDoc _ =
( "[Basic Authentication](https://en.wikipedia.org/wiki/Basic_access_authentication)"
, "Cookies automatically set by browsers, plus a header")
-- $setup
-- >>> instance ToSample Int where toSamples _ = singleSample 1729

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{-# OPTIONS_GHC -F -pgmF hspec-discover #-}

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@ -1,12 +0,0 @@
module Main where
import Build_doctests (flags, pkgs, module_sources)
import Data.Foldable (traverse_)
import Test.DocTest
main :: IO ()
main = do
traverse_ putStrLn args
doctest args
where
args = flags ++ pkgs ++ module_sources

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:set -isrc -itest -idoctest/ghci-wrapper/src

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@ -1,130 +0,0 @@
# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
and this project adheres to [PVP Versioning](https://pvp.haskell.org/).
## [Unreleased]
## [0.4.6.0] - 2020-10-06
## Changed
- expose verifyJWT and use it in two places [@domenkozar]
- support GHC 8.10 [@domenkozar]
- move ToJWT/FromJWT to servant-auth [@erewok]
- #165 fix AnySite with Cookie 3.5.0 [@odr]
## [0.4.5.1] - 2020-02-06
## Changed
- #158 servant 0.17 support [@phadej]
## [0.4.5.0] - 2019-12-28
## Changed
- #144 servant 0.16 support and drop GHC 7.10 support [@domenkozar]
- #148 removed unused constaint in HasServer instance for Auth
- #154 GHC 8.8 support [@phadej]
### Added
- #141 Support Stream combinator [@domenkozar]
- #143 Allow servant-0.16 [@phadej]
## [0.4.4.0] - 2019-03-02
### Added
- #141 Support Stream combinator [@domenkozar]
- #143 Allow servant-0.16 [@phadej]
## [0.4.3.0] - 2019-01-17
## Changed
- #117 Avoid running auth checks unnecessarily [@sopvop]
- #110 Get rid of crypto-api dependency [@domenkozar]
- #130 clearSession: improve cross-browser compatibility [@domenkozar]
- #136 weed out bytestring-conversion [@stephenirl]
## [0.4.2.0] - 2018-11-05
### Added
- `Headers hs a` instance for AddSetCookieApi [@domenkozar]
- GHC 8.6.x support [@domenkozar]
## [0.4.1.0] - 2018-10-05
### Added
- #125 Allow setting domain name for a cookie [@domenkozar]
## Changed
- bump http-api-data to 0.3.10 that includes Cookie orphan instances previously located in servant-auth-server [@phadej]
- #114 Export `HasSecurity` typeclass [@rockbmb]
## [0.4.0.1] - 2018-09-23
### Security
- #123 Session cookie did not apply SameSite attribute [@domenkozar]
### Added
- #112 HasLink instance for Auth combinator [@adetokunbo]
- #111 Documentation for using hoistServer [@mschristiansen]
- #107 Add utility functions for reading and writing a key to a file [@mschristiansen]
## [0.4.0.0] - 2018-06-17
### Added
- Support GHC 8.4 by @phadej and @domenkozar
- Support for servant-0.14 by @phadej
- #96 Support for jose-0.7 by @xaviershay
- #92 add `clearSession` for logout by @plredmond and @3noch
- #95 makeJWT: allow setting Alg via defaultJWTSettings by @domenkozar
- #89 Validate JWT against a JWKSet instead of JWK by @sopvop
### Changed
- #92 Rename CSRF to XSRF by @plredmond and @3noch
- #92 extract 'XsrfCookieSettings' from 'CookieSettings' and make XSRF checking optional
by @plredmond and @3noch
- #69 export SameSite by @domenkozar
- #102 Reuse Servant.Api.IsSecure instead of duplicating ADT by @domenkozar
### Deprecated
- #92 Renamed 'makeCsrfCookie' to 'makeXsrfCookie' and marked the former as deprecated
by @plredmond and @3noc
- #92 Made several changes to the structure of 'CookieSettings' which will require
attention by users who have modified the XSRF settings by @plredmond and @3noch
### Security
- #94 Force cookie expiration on serverside by @karshan
## [0.3.2.0] - 2018-02-21
### Added
- #76 Export wwwAuthenticatedErr and elaborate its annotation by @defanor
- Support for servant-0.14 by @phadej
### Changed
- Disable the readme executable for ghcjs builds by @hamishmack
- #84 Make AddSetCookieApi type family open by @qnikst
- #79 Make CSRF checks optional for GET requests by @harendra-kumar
## [0.3.1.0] - 2017-11-08
### Added
- Support for servant-0.12 by @phadej
## [0.3.0.0] - 2017-11-07
### Changed
- #47 'cookiePath' and 'xsrfCookiePath' added to 'CookieSettings' by @mchaver
## [0.2.8.0] - 2017-05-26
### Added
- #45 Support for servant-0.11 by @phadej
## [0.2.7.0] - 2017-02-11
### Changed
- #27 #41 'acceptLogin' and 'makeCsrfCookie' functions by @bts

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@ -1,31 +0,0 @@
Copyright Julian K. Arni (c) 2015
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following
disclaimer in the documentation and/or other materials provided
with the distribution.
* Neither the name of Julian K. Arni nor the names of other
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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@ -1,291 +0,0 @@
# servant-auth
These packages provides safe and easy-to-use authentication options for
`servant`. The same API can be protected via:
- basicauth
- cookies
- JWT tokens
| Package | Hackage |
| -------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| servant-auth | [![servant-auth](https://img.shields.io/hackage/v/servant-auth?style=flat-square&logo=haskell&label&labelColor=5D4F85)](https://hackage.haskell.org/package/servant-auth) |
| servant-auth-server | [![servant-auth-server](https://img.shields.io/hackage/v/servant-auth-server.svg?style=flat-square&logo=haskell&label&labelColor=5D4F85)](https://hackage.haskell.org/package/servant-auth-server) |
| servant-auth-client | [![servant-auth-client](https://img.shields.io/hackage/v/servant-auth-client.svg?style=flat-square&logo=haskell&label&labelColor=5D4F85)](https://hackage.haskell.org/package/servant-auth-client) |
| servant-auth-swagger | [![servant-auth-swagger](https://img.shields.io/hackage/v/servant-auth-swagger.svg?style=flat-square&logo=haskell&label&labelColor=5D4F85)](https://hackage.haskell.org/package/servant-auth-swagger) |
| servant-auth-docs | [![servant-auth-docs](https://img.shields.io/hackage/v/servant-auth-docs.svg?style=flat-square&logo=haskell&label&labelColor=5D4F85)](https://hackage.haskell.org/package/servant-auth-docs) |
## How it works
First some imports:
~~~ haskell
{-# OPTIONS_GHC -fno-warn-unused-binds #-}
{-# OPTIONS_GHC -fno-warn-deprecations #-}
import Control.Concurrent (forkIO)
import Control.Monad (forever)
import Control.Monad.Trans (liftIO)
import Data.Aeson (FromJSON, ToJSON)
import GHC.Generics (Generic)
import Network.Wai.Handler.Warp (run)
import System.Environment (getArgs)
import Servant
import Servant.Auth.Server
import Servant.Auth.Server.SetCookieOrphan ()
~~~
`servant-auth` library introduces a combinator `Auth`:
~~~ haskell
data Auth (auths :: [*]) val
~~~
What `Auth [Auth1, Auth2] Something :> API` means is that `API` is protected by
*either* `Auth1` *or* `Auth2`, and the result of authentication will be of type
`AuthResult Something`, where :
~~~ haskell
data AuthResult val
= BadPassword
| NoSuchUser
| Authenticated val
| Indefinite
~~~
Your handlers will get a value of type `AuthResult Something`, and can decide
what to do with it.
~~~ haskell
data User = User { name :: String, email :: String }
deriving (Eq, Show, Read, Generic)
instance ToJSON User
instance ToJWT User
instance FromJSON User
instance FromJWT User
data Login = Login { username :: String, password :: String }
deriving (Eq, Show, Read, Generic)
instance ToJSON Login
instance FromJSON Login
type Protected
= "name" :> Get '[JSON] String
:<|> "email" :> Get '[JSON] String
-- | 'Protected' will be protected by 'auths', which we still have to specify.
protected :: Servant.Auth.Server.AuthResult User -> Server Protected
-- If we get an "Authenticated v", we can trust the information in v, since
-- it was signed by a key we trust.
protected (Servant.Auth.Server.Authenticated user) = return (name user) :<|> return (email user)
-- Otherwise, we return a 401.
protected _ = throwAll err401
type Unprotected =
"login"
:> ReqBody '[JSON] Login
:> Verb 'POST 204 '[JSON] (Headers '[ Header "Set-Cookie" SetCookie
, Header "Set-Cookie" SetCookie]
NoContent)
:<|> Raw
unprotected :: CookieSettings -> JWTSettings -> Server Unprotected
unprotected cs jwts = checkCreds cs jwts :<|> serveDirectory "example/static"
type API auths = (Servant.Auth.Server.Auth auths User :> Protected) :<|> Unprotected
server :: CookieSettings -> JWTSettings -> Server (API auths)
server cs jwts = protected :<|> unprotected cs jwts
~~~
The code is common to all authentications. In order to pick one or more specific
authentication methods, all we need to do is provide the expect configuration
parameters.
## API tokens
The following example illustrates how to protect an API with tokens.
~~~ haskell
-- In main, we fork the server, and allow new tokens to be created in the
-- command line for the specified user name and email.
mainWithJWT :: IO ()
mainWithJWT = do
-- We generate the key for signing tokens. This would generally be persisted,
-- and kept safely
myKey <- generateKey
-- Adding some configurations. All authentications require CookieSettings to
-- be in the context.
let jwtCfg = defaultJWTSettings myKey
cfg = defaultCookieSettings :. jwtCfg :. EmptyContext
--- Here we actually make concrete
api = Proxy :: Proxy (API '[JWT])
_ <- forkIO $ run 7249 $ serveWithContext api cfg (server defaultCookieSettings jwtCfg)
putStrLn "Started server on localhost:7249"
putStrLn "Enter name and email separated by a space for a new token"
forever $ do
xs <- words <$> getLine
case xs of
[name', email'] -> do
etoken <- makeJWT (User name' email') jwtCfg Nothing
case etoken of
Left e -> putStrLn $ "Error generating token:t" ++ show e
Right v -> putStrLn $ "New token:\t" ++ show v
_ -> putStrLn "Expecting a name and email separated by spaces"
~~~
And indeed:
~~~ bash
./readme JWT
Started server on localhost:7249
Enter name and email separated by a space for a new token
alice alice@gmail.com
New token: "eyJhbGciOiJIUzI1NiJ9.eyJkYXQiOnsiZW1haWwiOiJhbGljZUBnbWFpbC5jb20iLCJuYW1lIjoiYWxpY2UifX0.xzOIrx_A9VOKzVO-R1c1JYKBqK9risF625HOxpBzpzE"
curl localhost:7249/name -v
* Hostname was NOT found in DNS cache
* Trying 127.0.0.1...
* Connected to localhost (127.0.0.1) port 7249 (#0)
> GET /name HTTP/1.1
> User-Agent: curl/7.35.0
> Host: localhost:7249
> Accept: */*
>
< HTTP/1.1 401 Unauthorized
< Transfer-Encoding: chunked
< Date: Wed, 07 Sep 2016 20:17:17 GMT
* Server Warp/3.2.7 is not blacklisted
< Server: Warp/3.2.7
<
* Connection #0 to host localhost left intact
curl -H "Authorization: Bearer eyJhbGciOiJIUzI1NiJ9.eyJkYXQiOnsiZW1haWwiOiJhbGljZUBnbWFpbC5jb20iLCJuYW1lIjoiYWxpY2UifX0.xzOIrx_A9VOKzVO-R1c1JYKBqK9risF625HOxpBzpzE" \
localhost:7249/name -v
* Hostname was NOT found in DNS cache
* Trying 127.0.0.1...
* Connected to localhost (127.0.0.1) port 7249 (#0)
> GET /name HTTP/1.1
> User-Agent: curl/7.35.0
> Host: localhost:7249
> Accept: */*
> Authorization: Bearer eyJhbGciOiJIUzI1NiJ9.eyJkYXQiOnsiZW1haWwiOiJhbGljZUBnbWFpbC5jb20iLCJuYW1lIjoiYWxpY2UifX0.xzOIrx_A9VOKzVO-R1c1JYKBqK9risF625HOxpBzpzE
>
< HTTP/1.1 200 OK
< Transfer-Encoding: chunked
< Date: Wed, 07 Sep 2016 20:16:11 GMT
* Server Warp/3.2.7 is not blacklisted
< Server: Warp/3.2.7
< Content-Type: application/json
< Set-Cookie: JWT-Cookie=eyJhbGciOiJIUzI1NiJ9.eyJkYXQiOnsiZW1haWwiOiJhbGljZUBnbWFpbC5jb20iLCJuYW1lIjoiYWxpY2UifX0.xzOIrx_A9VOKzVO-R1c1JYKBqK9risF625HOxpBzpzE; HttpOnly; Secure
< Set-Cookie: XSRF-TOKEN=TWcdPnHr2QHcVyTw/TTBLQ==; Secure
<
* Connection #0 to host localhost left intact
"alice"%
~~~
## Cookies
What if, in addition to API tokens, we want to expose our API to browsers? All
we need to do is say so!
~~~ haskell
mainWithCookies :: IO ()
mainWithCookies = do
-- We *also* need a key to sign the cookies
myKey <- generateKey
-- Adding some configurations. 'Cookie' requires, in addition to
-- CookieSettings, JWTSettings (for signing), so everything is just as before
let jwtCfg = defaultJWTSettings myKey
cfg = defaultCookieSettings :. jwtCfg :. EmptyContext
--- Here is the actual change
api = Proxy :: Proxy (API '[Cookie])
run 7249 $ serveWithContext api cfg (server defaultCookieSettings jwtCfg)
-- Here is the login handler
checkCreds :: CookieSettings
-> JWTSettings
-> Login
-> Handler (Headers '[ Header "Set-Cookie" SetCookie
, Header "Set-Cookie" SetCookie]
NoContent)
checkCreds cookieSettings jwtSettings (Login "Ali Baba" "Open Sesame") = do
-- Usually you would ask a database for the user info. This is just a
-- regular servant handler, so you can follow your normal database access
-- patterns (including using 'enter').
let usr = User "Ali Baba" "ali@email.com"
mApplyCookies <- liftIO $ acceptLogin cookieSettings jwtSettings usr
case mApplyCookies of
Nothing -> throwError err401
Just applyCookies -> return $ applyCookies NoContent
checkCreds _ _ _ = throwError err401
~~~
### XSRF and the frontend
XSRF protection works by requiring that there be a header of the same value as
a distinguished cookie that is set by the server on each request. What the
cookie and header name are can be configured (see `xsrfCookieName` and
`xsrfHeaderName` in `CookieSettings`), but by default they are "XSRF-TOKEN" and
"X-XSRF-TOKEN". This means that, if your client is a browser and you're using
cookies, Javascript on the client must set the header of each request by
reading the cookie. For jQuery, and with the default values, that might be:
~~~ javascript
var token = (function() {
r = document.cookie.match(new RegExp('XSRF-TOKEN=([^;]+)'))
if (r) return r[1];
})();
$.ajaxPrefilter(function(opts, origOpts, xhr) {
xhr.setRequestHeader('X-XSRF-TOKEN', token);
}
~~~
I *believe* nothing at all needs to be done if you're using Angular's `$http`
directive, but I haven't tested this.
XSRF protection can be disabled just for `GET` requests by setting
`xsrfExcludeGet = False`. You might want this if you're relying on the browser
to navigate between pages that require cookie authentication.
XSRF protection can be completely disabled by setting `cookieXsrfSetting =
Nothing` in `CookieSettings`. This is not recommended! If your cookie
authenticated web application runs any javascript, it's recommended to send the
XSRF header. However, if your web application runs no javascript, disabling
XSRF entirely may be required.
# Note on this README
This README is a literate haskell file. Here is 'main', allowing you to pick
between the examples above.
~~~ haskell
main :: IO ()
main = do
args <- getArgs
let usage = "Usage: readme (JWT|Cookie)"
case args of
["JWT"] -> mainWithJWT
["Cookie"] -> mainWithCookies
e -> putStrLn $ "Arguments: \"" ++ unwords e ++ "\" not understood\n" ++ usage
~~~

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README.lhs

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import Distribution.Simple
main = defaultMain

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cabal-version: 2.2
name: servant-auth-server
version: 0.4.7.0
synopsis: servant-server/servant-auth compatibility
description: This package provides the required instances for using the @Auth@ combinator
in your 'servant' server.
.
Both cookie- and token- (REST API) based authentication is provided.
.
For a quick overview of the usage, see the <https://github.com/haskell-servant/servant/tree/master/servant-auth#readme README>.
category: Web, Servant, Authentication
homepage: https://github.com/haskell-servant/servant/tree/master/servant-auth#readme
bug-reports: https://github.com/haskell-servant/servant/issues
author: Julian K. Arni
maintainer: jkarni@gmail.com
copyright: (c) Julian K. Arni
license: BSD-3-Clause
license-file: LICENSE
tested-with: GHC ==8.6.5 || ==8.8.4 || ==8.10.4 || ==9.0.1
build-type: Simple
extra-source-files:
CHANGELOG.md
source-repository head
type: git
location: https://github.com/haskell-servant/servant
library
hs-source-dirs:
src
default-extensions: ConstraintKinds DataKinds DefaultSignatures DeriveFoldable DeriveFunctor DeriveGeneric DeriveTraversable FlexibleContexts FlexibleInstances FunctionalDependencies GADTs KindSignatures MultiParamTypeClasses OverloadedStrings RankNTypes ScopedTypeVariables TypeFamilies TypeOperators
ghc-options: -Wall
build-depends:
base >= 4.10 && < 4.18
, aeson >= 1.0.0.1 && < 3
, base64-bytestring >= 1.0.0.1 && < 2
, blaze-builder >= 0.4.1.0 && < 0.5
, bytestring >= 0.10.6.0 && < 0.12
, case-insensitive >= 1.2.0.11 && < 1.3
, cookie >= 0.4.4 && < 0.5
, data-default-class >= 0.1.2.0 && < 0.2
, entropy >= 0.4.1.3 && < 0.5
, http-types >= 0.12.2 && < 0.13
, jose >= 0.10 && < 0.11
, lens >= 4.16.1 && < 5.3
, memory >= 0.14.16 && < 0.19
, monad-time >= 0.3.1.0 && < 0.4
, mtl ^>= 2.2.2 || ^>= 2.3.1
, servant >= 0.13 && < 0.20
, servant-auth == 0.4.*
, servant-server >= 0.13 && < 0.20
, tagged >= 0.8.4 && < 0.9
, text >= 1.2.3.0 && < 2.1
, time >= 1.5.0.1 && < 1.13
, unordered-containers >= 0.2.9.0 && < 0.3
, wai >= 3.2.1.2 && < 3.3
if impl(ghc >= 9)
build-depends:
-- base64-bytestring 1.2.1.0 contains important fix for GHC-9, lower versions
-- produce wrong results, thus corrupring JWT via jose package.
-- See: https://github.com/haskell/base64-bytestring/pull/46
base64-bytestring >= 1.2.1.0
exposed-modules:
Servant.Auth.Server
Servant.Auth.Server.Internal
Servant.Auth.Server.Internal.AddSetCookie
Servant.Auth.Server.Internal.BasicAuth
Servant.Auth.Server.Internal.Class
Servant.Auth.Server.Internal.ConfigTypes
Servant.Auth.Server.Internal.Cookie
Servant.Auth.Server.Internal.FormLogin
Servant.Auth.Server.Internal.JWT
Servant.Auth.Server.Internal.ThrowAll
Servant.Auth.Server.Internal.Types
Servant.Auth.Server.SetCookieOrphan
default-language: Haskell2010
test-suite readme
type: exitcode-stdio-1.0
main-is: README.lhs
default-extensions: ConstraintKinds DataKinds DefaultSignatures DeriveFoldable DeriveFunctor DeriveGeneric DeriveTraversable FlexibleContexts FlexibleInstances FunctionalDependencies GADTs KindSignatures MultiParamTypeClasses OverloadedStrings RankNTypes ScopedTypeVariables TypeFamilies TypeOperators
ghc-options: -Wall -pgmL markdown-unlit
build-tool-depends: markdown-unlit:markdown-unlit
build-depends:
base
, servant-auth
, servant-auth-server
, servant-server
, aeson
, mtl
, warp
default-language: Haskell2010
if impl(ghcjs)
buildable: False
test-suite spec
type: exitcode-stdio-1.0
main-is: Spec.hs
hs-source-dirs:
test
default-extensions: ConstraintKinds DataKinds DefaultSignatures DeriveFoldable DeriveFunctor DeriveGeneric DeriveTraversable FlexibleContexts FlexibleInstances FunctionalDependencies GADTs KindSignatures MultiParamTypeClasses OverloadedStrings RankNTypes ScopedTypeVariables TypeFamilies TypeOperators
ghc-options: -Wall
build-tool-depends: hspec-discover:hspec-discover >=2.5.5 && <2.10
-- dependencies with bounds inherited from the library stanza
build-depends:
base
, aeson
, bytestring
, case-insensitive
, jose
, lens
, mtl
, time
, http-types
, wai
, servant
, servant-server
, transformers
-- test dependencies
build-depends:
servant-auth-server
, hspec >= 2.5.5 && < 2.10
, QuickCheck >= 2.11.3 && < 2.15
, http-client >= 0.5.13.1 && < 0.8
, lens-aeson >= 1.0.2 && < 1.3
, warp >= 3.2.25 && < 3.4
, wreq >= 0.5.2.1 && < 0.6
other-modules:
Servant.Auth.ServerSpec
default-language: Haskell2010

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@ -1,180 +0,0 @@
module Servant.Auth.Server
(
-- | This package provides implementations for some common authentication
-- methods. Authentication yields a trustworthy (because generated by the
-- server) value of an some arbitrary type:
--
-- > type MyApi = Protected
-- >
-- > type Protected = Auth '[JWT, Cookie] User :> Get '[JSON] UserAccountDetails
-- >
-- > server :: Server Protected
-- > server (Authenticated usr) = ... -- here we know the client really is
-- > -- who she claims to be
-- > server _ = throwAll err401
--
-- Additional configuration happens via 'Context'.
--
-- == Example for Custom Handler
-- To use a custom 'Servant.Server.Handler' it is necessary to use
-- 'Servant.Server.hoistServerWithContext' instead of
-- 'Servant.Server.hoistServer' and specify the 'Context'.
--
-- Below is an example of passing 'CookieSettings' and 'JWTSettings' in the
-- 'Context' to create a specialized function equivalent to
-- 'Servant.Server.hoistServer' for an API that includes cookie
-- authentication.
--
-- > hoistServerWithAuth
-- > :: HasServer api '[CookieSettings, JWTSettings]
-- > => Proxy api
-- > -> (forall x. m x -> n x)
-- > -> ServerT api m
-- > -> ServerT api n
-- > hoistServerWithAuth api =
-- > hoistServerWithContext api (Proxy :: Proxy '[CookieSettings, JWTSettings])
----------------------------------------------------------------------------
-- * Auth
-- | Basic types
Auth
, AuthResult(..)
, AuthCheck(..)
----------------------------------------------------------------------------
-- * JWT
-- | JSON Web Tokens (JWT) are a compact and secure way of transferring
-- information between parties. In this library, they are signed by the
-- server (or by some other party posessing the relevant key), and used to
-- indicate the bearer's identity or authorization.
--
-- Arbitrary information can be encoded - just declare instances for the
-- 'FromJWT' and 'ToJWT' classes. Don't go overboard though - be aware that
-- usually you'll be trasmitting this information on each request (and
-- response!).
--
-- Note that, while the tokens are signed, they are not encrypted. Do not put
-- any information you do not wish the client to know in them!
-- ** Combinator
-- | Re-exported from 'servant-auth'
, JWT
-- ** Classes
, FromJWT(..)
, ToJWT(..)
-- ** Related types
, IsMatch(..)
-- ** Settings
, JWTSettings(..)
, defaultJWTSettings
-- ** Create check
, jwtAuthCheck
----------------------------------------------------------------------------
-- * Cookie
-- | Cookies are also a method of identifying and authenticating a user. They
-- are particular common when the client is a browser
-- ** Combinator
-- | Re-exported from 'servant-auth'
, Cookie
-- ** Settings
, CookieSettings(..)
, XsrfCookieSettings(..)
, defaultCookieSettings
, defaultXsrfCookieSettings
, makeSessionCookie
, makeSessionCookieBS
, makeXsrfCookie
, makeCsrfCookie
, makeCookie
, makeCookieBS
, acceptLogin
, clearSession
-- ** Related types
, IsSecure(..)
, SameSite(..)
, AreAuths
----------------------------------------------------------------------------
-- * BasicAuth
-- ** Combinator
-- | Re-exported from 'servant-auth'
, BasicAuth
-- ** Classes
, FromBasicAuthData(..)
-- ** Settings
, BasicAuthCfg
-- ** Related types
, BasicAuthData(..)
, IsPasswordCorrect(..)
-- ** Authentication request
, wwwAuthenticatedErr
----------------------------------------------------------------------------
-- * Utilies
, ThrowAll(throwAll)
, generateKey
, generateSecret
, fromSecret
, writeKey
, readKey
, makeJWT
, verifyJWT
-- ** Re-exports
, Default(def)
, SetCookie
) where
import Prelude hiding (readFile, writeFile)
import Data.ByteString (ByteString, writeFile, readFile)
import Data.Default.Class (Default (def))
import Servant.Auth
import Servant.Auth.JWT
import Servant.Auth.Server.Internal ()
import Servant.Auth.Server.Internal.BasicAuth
import Servant.Auth.Server.Internal.Class
import Servant.Auth.Server.Internal.ConfigTypes
import Servant.Auth.Server.Internal.Cookie
import Servant.Auth.Server.Internal.JWT
import Servant.Auth.Server.Internal.ThrowAll
import Servant.Auth.Server.Internal.Types
import Crypto.JOSE as Jose
import Servant (BasicAuthData (..))
import Web.Cookie (SetCookie)
-- | Generate a key suitable for use with 'defaultConfig'.
generateKey :: IO Jose.JWK
generateKey = Jose.genJWK $ Jose.OctGenParam 256
-- | Generate a bytestring suitable for use with 'fromSecret'.
generateSecret :: MonadRandom m => m ByteString
generateSecret = Jose.getRandomBytes 256
-- | Restores a key from a bytestring.
fromSecret :: ByteString -> Jose.JWK
fromSecret = Jose.fromOctets
-- | Writes a secret to a file. Can for instance be used from the REPL
-- to persist a key to a file, which can then be included with the
-- application. Restore the key using 'readKey'.
writeKey :: FilePath -> IO ()
writeKey fp = writeFile fp =<< generateSecret
-- | Reads a key from a file.
readKey :: FilePath -> IO Jose.JWK
readKey fp = fromSecret <$> readFile fp

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{-# LANGUAGE CPP #-}
{-# LANGUAGE UndecidableInstances #-}
{-# OPTIONS_GHC -fno-warn-orphans #-}
module Servant.Auth.Server.Internal where
import Control.Monad.Trans (liftIO)
import Servant ((:>), Handler, HasServer (..),
Proxy (..),
HasContextEntry(getContextEntry))
import Servant.Auth
import Servant.Auth.JWT (ToJWT)
import Servant.Auth.Server.Internal.AddSetCookie
import Servant.Auth.Server.Internal.Class
import Servant.Auth.Server.Internal.Cookie
import Servant.Auth.Server.Internal.ConfigTypes
import Servant.Auth.Server.Internal.JWT
import Servant.Auth.Server.Internal.Types
import Servant.Server.Internal (DelayedIO, addAuthCheck, withRequest)
instance ( n ~ 'S ('S 'Z)
, HasServer (AddSetCookiesApi n api) ctxs, AreAuths auths ctxs v
, HasServer api ctxs -- this constraint is needed to implement hoistServer
, AddSetCookies n (ServerT api Handler) (ServerT (AddSetCookiesApi n api) Handler)
, ToJWT v
, HasContextEntry ctxs CookieSettings
, HasContextEntry ctxs JWTSettings
) => HasServer (Auth auths v :> api) ctxs where
type ServerT (Auth auths v :> api) m = AuthResult v -> ServerT api m
#if MIN_VERSION_servant_server(0,12,0)
hoistServerWithContext _ pc nt s = hoistServerWithContext (Proxy :: Proxy api) pc nt . s
#endif
route _ context subserver =
route (Proxy :: Proxy (AddSetCookiesApi n api))
context
(fmap go subserver `addAuthCheck` authCheck)
where
authCheck :: DelayedIO (AuthResult v, SetCookieList ('S ('S 'Z)))
authCheck = withRequest $ \req -> liftIO $ do
authResult <- runAuthCheck (runAuths (Proxy :: Proxy auths) context) req
cookies <- makeCookies authResult
return (authResult, cookies)
jwtSettings :: JWTSettings
jwtSettings = getContextEntry context
cookieSettings :: CookieSettings
cookieSettings = getContextEntry context
makeCookies :: AuthResult v -> IO (SetCookieList ('S ('S 'Z)))
makeCookies authResult = do
xsrf <- makeXsrfCookie cookieSettings
fmap (Just xsrf `SetCookieCons`) $
case authResult of
(Authenticated v) -> do
ejwt <- makeSessionCookie cookieSettings jwtSettings v
case ejwt of
Nothing -> return $ Nothing `SetCookieCons` SetCookieNil
Just jwt -> return $ Just jwt `SetCookieCons` SetCookieNil
_ -> return $ Nothing `SetCookieCons` SetCookieNil
go :: (AuthResult v -> ServerT api Handler)
-> (AuthResult v, SetCookieList n)
-> ServerT (AddSetCookiesApi n api) Handler
go fn (authResult, cookies) = addSetCookies cookies $ fn authResult

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@ -1,106 +0,0 @@
{-# LANGUAGE PolyKinds #-}
{-# LANGUAGE TupleSections #-}
{-# LANGUAGE UndecidableInstances #-}
{-# LANGUAGE CPP #-}
module Servant.Auth.Server.Internal.AddSetCookie where
import Blaze.ByteString.Builder (toByteString)
import qualified Data.ByteString as BS
import Data.Tagged (Tagged (..))
import qualified Network.HTTP.Types as HTTP
import Network.Wai (mapResponseHeaders)
import Servant
import Servant.API.Generic
import Servant.Server.Generic
import Web.Cookie
-- What are we doing here? Well, the idea is to add headers to the response,
-- but the headers come from the authentication check. In order to do that, we
-- tweak a little the general theme of recursing down the API tree; this time,
-- we recurse down a variation of it that adds headers to all the endpoints.
-- This involves the usual type-level checks.
--
-- TODO: If the endpoints already have headers, this will not work as is.
data Nat = Z | S Nat
type family AddSetCookiesApi (n :: Nat) a where
AddSetCookiesApi ('S 'Z) a = AddSetCookieApi a
AddSetCookiesApi ('S n) a = AddSetCookiesApi n (AddSetCookieApi a)
type family AddSetCookieApiVerb a where
AddSetCookieApiVerb (Headers ls a) = Headers (Header "Set-Cookie" SetCookie ': ls) a
AddSetCookieApiVerb a = Headers '[Header "Set-Cookie" SetCookie] a
type family AddSetCookieApi a :: *
type instance AddSetCookieApi (a :> b) = a :> AddSetCookieApi b
type instance AddSetCookieApi (a :<|> b) = AddSetCookieApi a :<|> AddSetCookieApi b
type instance AddSetCookieApi (NamedRoutes api) = AddSetCookieApi (ToServantApi api)
type instance AddSetCookieApi (Verb method stat ctyps a)
= Verb method stat ctyps (AddSetCookieApiVerb a)
type instance AddSetCookieApi Raw = Raw
#if MIN_VERSION_servant_server(0,15,0)
type instance AddSetCookieApi (Stream method stat framing ctyps a)
= Stream method stat framing ctyps (AddSetCookieApiVerb a)
#endif
type instance AddSetCookieApi (Headers hs a) = AddSetCookieApiVerb (Headers hs a)
data SetCookieList (n :: Nat) :: * where
SetCookieNil :: SetCookieList 'Z
SetCookieCons :: Maybe SetCookie -> SetCookieList n -> SetCookieList ('S n)
class AddSetCookies (n :: Nat) orig new where
addSetCookies :: SetCookieList n -> orig -> new
instance {-# OVERLAPS #-} AddSetCookies ('S n) oldb newb
=> AddSetCookies ('S n) (a -> oldb) (a -> newb) where
addSetCookies cookies oldfn = addSetCookies cookies . oldfn
instance AddSetCookies 'Z orig orig where
addSetCookies _ = id
instance {-# OVERLAPPABLE #-}
( Functor m
, AddSetCookies n (m old) (m cookied)
, AddHeader "Set-Cookie" SetCookie cookied new
) => AddSetCookies ('S n) (m old) (m new) where
addSetCookies (mCookie `SetCookieCons` rest) oldVal =
case mCookie of
Nothing -> noHeader <$> addSetCookies rest oldVal
Just cookie -> addHeader cookie <$> addSetCookies rest oldVal
instance {-# OVERLAPS #-}
(AddSetCookies ('S n) a a', AddSetCookies ('S n) b b')
=> AddSetCookies ('S n) (a :<|> b) (a' :<|> b') where
addSetCookies cookies (a :<|> b) = addSetCookies cookies a :<|> addSetCookies cookies b
instance {-# OVERLAPS #-}
( AddSetCookies ('S n) (ServerT (ToServantApi api) m) cookiedApi
, Generic (api (AsServerT m))
, GServantProduct (Rep (api (AsServerT m)))
, ToServant api (AsServerT m) ~ ServerT (ToServantApi api) m
)
=> AddSetCookies ('S n) (api (AsServerT m)) cookiedApi where
addSetCookies cookies = addSetCookies cookies . toServant
-- | for @servant <0.11@
instance
AddSetCookies ('S n) Application Application where
addSetCookies cookies r request respond
= r request $ respond . mapResponseHeaders (++ mkHeaders cookies)
-- | for @servant >=0.11@
instance
AddSetCookies ('S n) (Tagged m Application) (Tagged m Application) where
addSetCookies cookies r = Tagged $ \request respond ->
unTagged r request $ respond . mapResponseHeaders (++ mkHeaders cookies)
mkHeaders :: SetCookieList x -> [HTTP.Header]
mkHeaders x = ("Set-Cookie",) <$> mkCookies x
where
mkCookies :: forall y. SetCookieList y -> [BS.ByteString]
mkCookies SetCookieNil = []
mkCookies (SetCookieCons Nothing rest) = mkCookies rest
mkCookies (SetCookieCons (Just y) rest)
= toByteString (renderSetCookie y) : mkCookies rest

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@ -1,59 +0,0 @@
{-# LANGUAGE CPP #-}
module Servant.Auth.Server.Internal.BasicAuth where
#if !MIN_VERSION_servant_server(0,16,0)
#define ServerError ServantErr
#endif
import qualified Data.ByteString as BS
import Servant (BasicAuthData (..),
ServerError (..), err401)
import Servant.Server.Internal.BasicAuth (decodeBAHdr,
mkBAChallengerHdr)
import Servant.Auth.Server.Internal.Types
-- | A 'ServerError' that asks the client to authenticate via Basic
-- Authentication, should be invoked by an application whenever
-- appropriate. The argument is the realm.
wwwAuthenticatedErr :: BS.ByteString -> ServerError
wwwAuthenticatedErr realm = err401 { errHeaders = [mkBAChallengerHdr realm] }
-- | A type holding the configuration for Basic Authentication.
-- It is defined as a type family with no arguments, so that
-- it can be instantiated to whatever type you need to
-- authenticate your users (use @type instance BasicAuthCfg = ...@).
--
-- Note that the instantiation is application-wide,
-- i.e. there can be only one instance.
-- As a consequence, it should not be instantiated in a library.
--
-- Basic Authentication expects an element of type 'BasicAuthCfg'
-- to be in the 'Context'; that element is then passed automatically
-- to the instance of 'FromBasicAuthData' together with the
-- authentication data obtained from the client.
--
-- If you do not need a configuration for Basic Authentication,
-- you can use just @BasicAuthCfg = ()@, and recall to also
-- add @()@ to the 'Context'.
-- A basic but more interesting example is to take as 'BasicAuthCfg'
-- a list of authorised username/password pairs:
--
-- > deriving instance Eq BasicAuthData
-- > type instance BasicAuthCfg = [BasicAuthData]
-- > instance FromBasicAuthData User where
-- > fromBasicAuthData authData authCfg =
-- > if elem authData authCfg then ...
type family BasicAuthCfg
class FromBasicAuthData a where
-- | Whether the username exists and the password is correct.
-- Note that, rather than passing a 'Pass' to the function, we pass a
-- function that checks an 'EncryptedPass'. This is to make sure you don't
-- accidentally do something untoward with the password, like store it.
fromBasicAuthData :: BasicAuthData -> BasicAuthCfg -> IO (AuthResult a)
basicAuthCheck :: FromBasicAuthData usr => BasicAuthCfg -> AuthCheck usr
basicAuthCheck cfg = AuthCheck $ \req -> case decodeBAHdr req of
Nothing -> return Indefinite
Just baData -> fromBasicAuthData baData cfg

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{-# LANGUAGE UndecidableInstances #-}
module Servant.Auth.Server.Internal.Class where
import Servant.Auth
import Data.Monoid
import Servant hiding (BasicAuth)
import Servant.Auth.JWT
import Servant.Auth.Server.Internal.Types
import Servant.Auth.Server.Internal.ConfigTypes
import Servant.Auth.Server.Internal.BasicAuth
import Servant.Auth.Server.Internal.Cookie
import Servant.Auth.Server.Internal.JWT (jwtAuthCheck)
-- | @IsAuth a ctx v@ indicates that @a@ is an auth type that expects all
-- elements of @ctx@ to be the in the Context and whose authentication check
-- returns an @AuthCheck v@.
class IsAuth a v where
type family AuthArgs a :: [*]
runAuth :: proxy a -> proxy v -> Unapp (AuthArgs a) (AuthCheck v)
instance FromJWT usr => IsAuth Cookie usr where
type AuthArgs Cookie = '[CookieSettings, JWTSettings]
runAuth _ _ = cookieAuthCheck
instance FromJWT usr => IsAuth JWT usr where
type AuthArgs JWT = '[JWTSettings]
runAuth _ _ = jwtAuthCheck
instance FromBasicAuthData usr => IsAuth BasicAuth usr where
type AuthArgs BasicAuth = '[BasicAuthCfg]
runAuth _ _ = basicAuthCheck
-- * Helper
class AreAuths (as :: [*]) (ctxs :: [*]) v where
runAuths :: proxy as -> Context ctxs -> AuthCheck v
instance AreAuths '[] ctxs v where
runAuths _ _ = mempty
instance ( AuthCheck v ~ App (AuthArgs a) (Unapp (AuthArgs a) (AuthCheck v))
, IsAuth a v
, AreAuths as ctxs v
, AppCtx ctxs (AuthArgs a) (Unapp (AuthArgs a) (AuthCheck v))
) => AreAuths (a ': as) ctxs v where
runAuths _ ctxs = go <> runAuths (Proxy :: Proxy as) ctxs
where
go = appCtx (Proxy :: Proxy (AuthArgs a))
ctxs
(runAuth (Proxy :: Proxy a) (Proxy :: Proxy v))
type family Unapp ls res where
Unapp '[] res = res
Unapp (arg1 ': rest) res = arg1 -> Unapp rest res
type family App ls res where
App '[] res = res
App (arg1 ': rest) (arg1 -> res) = App rest res
-- | @AppCtx@ applies the function @res@ to the arguments in @ls@ by taking the
-- values from the Context provided.
class AppCtx ctx ls res where
appCtx :: proxy ls -> Context ctx -> res -> App ls res
instance ( HasContextEntry ctxs ctx
, AppCtx ctxs rest res
) => AppCtx ctxs (ctx ': rest) (ctx -> res) where
appCtx _ ctx fn = appCtx (Proxy :: Proxy rest) ctx $ fn $ getContextEntry ctx
instance AppCtx ctx '[] res where
appCtx _ _ r = r

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@ -1,127 +0,0 @@
module Servant.Auth.Server.Internal.ConfigTypes
( module Servant.Auth.Server.Internal.ConfigTypes
, Servant.API.IsSecure(..)
) where
import Crypto.JOSE as Jose
import Crypto.JWT as Jose
import qualified Data.ByteString as BS
import Data.Default.Class
import Data.Time
import GHC.Generics (Generic)
import Servant.API (IsSecure(..))
data IsMatch = Matches | DoesNotMatch
deriving (Eq, Show, Read, Generic, Ord)
data IsPasswordCorrect = PasswordCorrect | PasswordIncorrect
deriving (Eq, Show, Read, Generic, Ord)
-- The @SameSite@ attribute of cookies determines whether cookies will be sent
-- on cross-origin requests.
--
-- See <https://tools.ietf.org/html/draft-west-first-party-cookies-07 this document>
-- for more information.
data SameSite = AnySite | SameSiteStrict | SameSiteLax
deriving (Eq, Show, Read, Generic, Ord)
-- | @JWTSettings@ are used to generate cookies, and to verify JWTs.
data JWTSettings = JWTSettings
{
-- | Key used to sign JWT.
signingKey :: Jose.JWK
-- | Algorithm used to sign JWT.
, jwtAlg :: Maybe Jose.Alg
-- | Keys used to validate JWT.
, validationKeys :: IO Jose.JWKSet
-- | An @aud@ predicate. The @aud@ is a string or URI that identifies the
-- intended recipient of the JWT.
, audienceMatches :: Jose.StringOrURI -> IsMatch
} deriving (Generic)
-- | A @JWTSettings@ where the audience always matches.
defaultJWTSettings :: Jose.JWK -> JWTSettings
defaultJWTSettings k = JWTSettings
{ signingKey = k
, jwtAlg = Nothing
, validationKeys = pure $ Jose.JWKSet [k]
, audienceMatches = const Matches }
-- | The policies to use when generating cookies.
--
-- If *both* 'cookieMaxAge' and 'cookieExpires' are @Nothing@, browsers will
-- treat the cookie as a *session cookie*. These will be deleted when the
-- browser is closed.
--
-- Note that having the setting @Secure@ may cause testing failures if you are
-- not testing over HTTPS.
data CookieSettings = CookieSettings
{
-- | 'Secure' means browsers will only send cookies over HTTPS. Default:
-- @Secure@.
cookieIsSecure :: !IsSecure
-- | How long from now until the cookie expires. Default: @Nothing@.
, cookieMaxAge :: !(Maybe DiffTime)
-- | At what time the cookie expires. Default: @Nothing@.
, cookieExpires :: !(Maybe UTCTime)
-- | The URL path and sub-paths for which this cookie is used. Default: @Just "/"@.
, cookiePath :: !(Maybe BS.ByteString)
-- | Domain name, if set cookie also allows subdomains. Default: @Nothing@.
, cookieDomain :: !(Maybe BS.ByteString)
-- | 'SameSite' settings. Default: @SameSiteLax@.
, cookieSameSite :: !SameSite
-- | What name to use for the cookie used for the session.
, sessionCookieName :: !BS.ByteString
-- | The optional settings to use for XSRF protection. Default: @Just def@.
, cookieXsrfSetting :: !(Maybe XsrfCookieSettings)
} deriving (Eq, Show, Generic)
instance Default CookieSettings where
def = defaultCookieSettings
defaultCookieSettings :: CookieSettings
defaultCookieSettings = CookieSettings
{ cookieIsSecure = Secure
, cookieMaxAge = Nothing
, cookieExpires = Nothing
, cookiePath = Just "/"
, cookieDomain = Nothing
, cookieSameSite = SameSiteLax
, sessionCookieName = "JWT-Cookie"
, cookieXsrfSetting = Just def
}
-- | The policies to use when generating and verifying XSRF cookies
data XsrfCookieSettings = XsrfCookieSettings
{
-- | What name to use for the cookie used for XSRF protection.
xsrfCookieName :: !BS.ByteString
-- | What path to use for the cookie used for XSRF protection. Default @Just "/"@.
, xsrfCookiePath :: !(Maybe BS.ByteString)
-- | What name to use for the header used for XSRF protection.
, xsrfHeaderName :: !BS.ByteString
-- | Exclude GET request method from XSRF protection.
, xsrfExcludeGet :: !Bool
} deriving (Eq, Show, Generic)
instance Default XsrfCookieSettings where
def = defaultXsrfCookieSettings
defaultXsrfCookieSettings :: XsrfCookieSettings
defaultXsrfCookieSettings = XsrfCookieSettings
{ xsrfCookieName = "XSRF-TOKEN"
, xsrfCookiePath = Just "/"
, xsrfHeaderName = "X-XSRF-TOKEN"
, xsrfExcludeGet = False
}
------------------------------------------------------------------------------
-- Internal {{{
jwtSettingsToJwtValidationSettings :: JWTSettings -> Jose.JWTValidationSettings
jwtSettingsToJwtValidationSettings s
= defaultJWTValidationSettings (toBool <$> audienceMatches s)
where
toBool Matches = True
toBool DoesNotMatch = False
-- }}}

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@ -1,183 +0,0 @@
{-# LANGUAGE CPP #-}
module Servant.Auth.Server.Internal.Cookie where
import Blaze.ByteString.Builder (toByteString)
import Control.Monad (MonadPlus(..), guard)
import Control.Monad.Except
import Control.Monad.Reader
import qualified Crypto.JOSE as Jose
import qualified Crypto.JWT as Jose
import Data.ByteArray (constEq)
import qualified Data.ByteString as BS
import qualified Data.ByteString.Base64 as BS64
import qualified Data.ByteString.Lazy as BSL
import Data.CaseInsensitive (mk)
import Data.Maybe (fromMaybe)
import Data.Time.Calendar (Day(..))
import Data.Time.Clock (UTCTime(..), secondsToDiffTime)
import Network.HTTP.Types (methodGet)
import Network.HTTP.Types.Header(hCookie)
import Network.Wai (Request, requestHeaders, requestMethod)
import Servant (AddHeader, addHeader)
import System.Entropy (getEntropy)
import Web.Cookie
import Servant.Auth.JWT (FromJWT (decodeJWT), ToJWT)
import Servant.Auth.Server.Internal.ConfigTypes
import Servant.Auth.Server.Internal.JWT (makeJWT, verifyJWT)
import Servant.Auth.Server.Internal.Types
cookieAuthCheck :: FromJWT usr => CookieSettings -> JWTSettings -> AuthCheck usr
cookieAuthCheck ccfg jwtSettings = do
req <- ask
jwtCookie <- maybe mempty return $ do
cookies' <- lookup hCookie $ requestHeaders req
let cookies = parseCookies cookies'
-- Apply the XSRF check if enabled.
guard $ fromMaybe True $ do
xsrfCookieCfg <- xsrfCheckRequired ccfg req
return $ xsrfCookieAuthCheck xsrfCookieCfg req cookies
-- session cookie *must* be HttpOnly and Secure
lookup (sessionCookieName ccfg) cookies
verifiedJWT <- liftIO $ verifyJWT jwtSettings jwtCookie
case verifiedJWT of
Nothing -> mzero
Just v -> return v
xsrfCheckRequired :: CookieSettings -> Request -> Maybe XsrfCookieSettings
xsrfCheckRequired cookieSettings req = do
xsrfCookieCfg <- cookieXsrfSetting cookieSettings
let disableForGetReq = xsrfExcludeGet xsrfCookieCfg && requestMethod req == methodGet
guard $ not disableForGetReq
return xsrfCookieCfg
xsrfCookieAuthCheck :: XsrfCookieSettings -> Request -> [(BS.ByteString, BS.ByteString)] -> Bool
xsrfCookieAuthCheck xsrfCookieCfg req cookies = fromMaybe False $ do
xsrfCookie <- lookup (xsrfCookieName xsrfCookieCfg) cookies
xsrfHeader <- lookup (mk $ xsrfHeaderName xsrfCookieCfg) $ requestHeaders req
return $ xsrfCookie `constEq` xsrfHeader
-- | Makes a cookie to be used for XSRF.
makeXsrfCookie :: CookieSettings -> IO SetCookie
makeXsrfCookie cookieSettings = case cookieXsrfSetting cookieSettings of
Just xsrfCookieSettings -> makeRealCookie xsrfCookieSettings
Nothing -> return $ noXsrfTokenCookie cookieSettings
where
makeRealCookie xsrfCookieSettings = do
xsrfValue <- BS64.encode <$> getEntropy 32
return
$ applyXsrfCookieSettings xsrfCookieSettings
$ applyCookieSettings cookieSettings
$ def{ setCookieValue = xsrfValue }
-- | Alias for 'makeXsrfCookie'.
makeCsrfCookie :: CookieSettings -> IO SetCookie
makeCsrfCookie = makeXsrfCookie
{-# DEPRECATED makeCsrfCookie "Use makeXsrfCookie instead" #-}
-- | Makes a cookie with session information.
makeSessionCookie :: ToJWT v => CookieSettings -> JWTSettings -> v -> IO (Maybe SetCookie)
makeSessionCookie cookieSettings jwtSettings v = do
ejwt <- makeJWT v jwtSettings (cookieExpires cookieSettings)
case ejwt of
Left _ -> return Nothing
Right jwt -> return
$ Just
$ applySessionCookieSettings cookieSettings
$ applyCookieSettings cookieSettings
$ def{ setCookieValue = BSL.toStrict jwt }
noXsrfTokenCookie :: CookieSettings -> SetCookie
noXsrfTokenCookie cookieSettings =
applyCookieSettings cookieSettings $ def{ setCookieName = "NO-XSRF-TOKEN", setCookieValue = "" }
applyCookieSettings :: CookieSettings -> SetCookie -> SetCookie
applyCookieSettings cookieSettings setCookie = setCookie
{ setCookieMaxAge = cookieMaxAge cookieSettings
, setCookieExpires = cookieExpires cookieSettings
, setCookiePath = cookiePath cookieSettings
, setCookieDomain = cookieDomain cookieSettings
, setCookieSecure = case cookieIsSecure cookieSettings of
Secure -> True
NotSecure -> False
}
applyXsrfCookieSettings :: XsrfCookieSettings -> SetCookie -> SetCookie
applyXsrfCookieSettings xsrfCookieSettings setCookie = setCookie
{ setCookieName = xsrfCookieName xsrfCookieSettings
, setCookiePath = xsrfCookiePath xsrfCookieSettings
, setCookieHttpOnly = False
}
applySessionCookieSettings :: CookieSettings -> SetCookie -> SetCookie
applySessionCookieSettings cookieSettings setCookie = setCookie
{ setCookieName = sessionCookieName cookieSettings
, setCookieSameSite = case cookieSameSite cookieSettings of
AnySite -> anySite
SameSiteStrict -> Just sameSiteStrict
SameSiteLax -> Just sameSiteLax
, setCookieHttpOnly = True
}
where
#if MIN_VERSION_cookie(0,4,5)
anySite = Just sameSiteNone
#else
anySite = Nothing
#endif
-- | For a JWT-serializable session, returns a function that decorates a
-- provided response object with XSRF and session cookies. This should be used
-- when a user successfully authenticates with credentials.
acceptLogin :: ( ToJWT session
, AddHeader "Set-Cookie" SetCookie response withOneCookie
, AddHeader "Set-Cookie" SetCookie withOneCookie withTwoCookies )
=> CookieSettings
-> JWTSettings
-> session
-> IO (Maybe (response -> withTwoCookies))
acceptLogin cookieSettings jwtSettings session = do
mSessionCookie <- makeSessionCookie cookieSettings jwtSettings session
case mSessionCookie of
Nothing -> pure Nothing
Just sessionCookie -> do
xsrfCookie <- makeXsrfCookie cookieSettings
return $ Just $ addHeader sessionCookie . addHeader xsrfCookie
-- | Arbitrary cookie expiry time set back in history after unix time 0
expireTime :: UTCTime
expireTime = UTCTime (ModifiedJulianDay 50000) 0
-- | Adds headers to a response that clears all session cookies
-- | using max-age and expires cookie attributes.
clearSession :: ( AddHeader "Set-Cookie" SetCookie response withOneCookie
, AddHeader "Set-Cookie" SetCookie withOneCookie withTwoCookies )
=> CookieSettings
-> response
-> withTwoCookies
clearSession cookieSettings = addHeader clearedSessionCookie . addHeader clearedXsrfCookie
where
-- According to RFC6265 max-age takes precedence, but IE/Edge ignore it completely so we set both
cookieSettingsExpires = cookieSettings
{ cookieExpires = Just expireTime
, cookieMaxAge = Just (secondsToDiffTime 0)
}
clearedSessionCookie = applySessionCookieSettings cookieSettingsExpires $ applyCookieSettings cookieSettingsExpires def
clearedXsrfCookie = case cookieXsrfSetting cookieSettings of
Just xsrfCookieSettings -> applyXsrfCookieSettings xsrfCookieSettings $ applyCookieSettings cookieSettingsExpires def
Nothing -> noXsrfTokenCookie cookieSettingsExpires
makeSessionCookieBS :: ToJWT v => CookieSettings -> JWTSettings -> v -> IO (Maybe BS.ByteString)
makeSessionCookieBS a b c = fmap (toByteString . renderSetCookie) <$> makeSessionCookie a b c
-- | Alias for 'makeSessionCookie'.
makeCookie :: ToJWT v => CookieSettings -> JWTSettings -> v -> IO (Maybe SetCookie)
makeCookie = makeSessionCookie
{-# DEPRECATED makeCookie "Use makeSessionCookie instead" #-}
-- | Alias for 'makeSessionCookieBS'.
makeCookieBS :: ToJWT v => CookieSettings -> JWTSettings -> v -> IO (Maybe BS.ByteString)
makeCookieBS = makeSessionCookieBS
{-# DEPRECATED makeCookieBS "Use makeSessionCookieBS instead" #-}

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@ -1,3 +0,0 @@
module Servant.Auth.Server.Internal.FormLogin where

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module Servant.Auth.Server.Internal.JWT where
import Control.Lens
import Control.Monad (MonadPlus(..), guard)
import Control.Monad.Reader
import qualified Crypto.JOSE as Jose
import qualified Crypto.JWT as Jose
import Data.ByteArray (constEq)
import qualified Data.ByteString as BS
import qualified Data.ByteString.Lazy as BSL
import Data.Maybe (fromMaybe)
import Data.Time (UTCTime)
import Network.Wai (requestHeaders)
import Servant.Auth.JWT (FromJWT(..), ToJWT(..))
import Servant.Auth.Server.Internal.ConfigTypes
import Servant.Auth.Server.Internal.Types
-- | A JWT @AuthCheck@. You likely won't need to use this directly unless you
-- are protecting a @Raw@ endpoint.
jwtAuthCheck :: FromJWT usr => JWTSettings -> AuthCheck usr
jwtAuthCheck jwtSettings = do
req <- ask
token <- maybe mempty return $ do
authHdr <- lookup "Authorization" $ requestHeaders req
let bearer = "Bearer "
(mbearer, rest) = BS.splitAt (BS.length bearer) authHdr
guard (mbearer `constEq` bearer)
return rest
verifiedJWT <- liftIO $ verifyJWT jwtSettings token
case verifiedJWT of
Nothing -> mzero
Just v -> return v
-- | Creates a JWT containing the specified data. The data is stored in the
-- @dat@ claim. The 'Maybe UTCTime' argument indicates the time at which the
-- token expires.
makeJWT :: ToJWT a
=> a -> JWTSettings -> Maybe UTCTime -> IO (Either Jose.Error BSL.ByteString)
makeJWT v cfg expiry = Jose.runJOSE $ do
bestAlg <- Jose.bestJWSAlg $ signingKey cfg
let alg = fromMaybe bestAlg $ jwtAlg cfg
ejwt <- Jose.signClaims (signingKey cfg)
(Jose.newJWSHeader ((), alg))
(addExp $ encodeJWT v)
return $ Jose.encodeCompact ejwt
where
addExp claims = case expiry of
Nothing -> claims
Just e -> claims & Jose.claimExp ?~ Jose.NumericDate e
verifyJWT :: FromJWT a => JWTSettings -> BS.ByteString -> IO (Maybe a)
verifyJWT jwtCfg input = do
keys <- validationKeys jwtCfg
verifiedJWT <- Jose.runJOSE $ do
unverifiedJWT <- Jose.decodeCompact (BSL.fromStrict input)
Jose.verifyClaims
(jwtSettingsToJwtValidationSettings jwtCfg)
keys
unverifiedJWT
return $ case verifiedJWT of
Left (_ :: Jose.JWTError) -> Nothing
Right v -> case decodeJWT v of
Left _ -> Nothing
Right v' -> Just v'

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{-# LANGUAGE CPP #-}
{-# LANGUAGE UndecidableInstances #-}
module Servant.Auth.Server.Internal.ThrowAll where
#if !MIN_VERSION_servant_server(0,16,0)
#define ServerError ServantErr
#endif
import Control.Monad.Error.Class
import Data.Tagged (Tagged (..))
import Servant ((:<|>) (..), ServerError(..), NamedRoutes(..))
import Servant.API.Generic
import Servant.Server.Generic
import Servant.Server
import Network.HTTP.Types
import Network.Wai
import qualified Data.ByteString.Char8 as BS
class ThrowAll a where
-- | 'throwAll' is a convenience function to throw errors across an entire
-- sub-API
--
--
-- > throwAll err400 :: Handler a :<|> Handler b :<|> Handler c
-- > == throwError err400 :<|> throwError err400 :<|> err400
throwAll :: ServerError -> a
instance (ThrowAll a, ThrowAll b) => ThrowAll (a :<|> b) where
throwAll e = throwAll e :<|> throwAll e
instance
( ThrowAll (ToServant api (AsServerT m)) , GenericServant api (AsServerT m)) =>
ThrowAll (api (AsServerT m)) where
throwAll = fromServant . throwAll
-- Really this shouldn't be necessary - ((->) a) should be an instance of
-- MonadError, no?
instance {-# OVERLAPPING #-} ThrowAll b => ThrowAll (a -> b) where
throwAll e = const $ throwAll e
instance {-# OVERLAPPABLE #-} (MonadError ServerError m) => ThrowAll (m a) where
throwAll = throwError
-- | for @servant <0.11@
instance {-# OVERLAPPING #-} ThrowAll Application where
throwAll e _req respond
= respond $ responseLBS (mkStatus (errHTTPCode e) (BS.pack $ errReasonPhrase e))
(errHeaders e)
(errBody e)
-- | for @servant >=0.11@
instance {-# OVERLAPPING #-} MonadError ServerError m => ThrowAll (Tagged m Application) where
throwAll e = Tagged $ \_req respond ->
respond $ responseLBS (mkStatus (errHTTPCode e) (BS.pack $ errReasonPhrase e))
(errHeaders e)
(errBody e)

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@ -1,113 +0,0 @@
{-# LANGUAGE CPP #-}
module Servant.Auth.Server.Internal.Types where
import Control.Applicative
import Control.Monad (MonadPlus(..), ap)
import Control.Monad.Reader
import Control.Monad.Time
import Data.Monoid (Monoid (..))
import Data.Semigroup (Semigroup (..))
import Data.Time (getCurrentTime)
import GHC.Generics (Generic)
import Network.Wai (Request)
import qualified Control.Monad.Fail as Fail
-- | The result of an authentication attempt.
data AuthResult val
= BadPassword
| NoSuchUser
-- | Authentication succeeded.
| Authenticated val
-- | If an authentication procedure cannot be carried out - if for example it
-- expects a password and username in a header that is not present -
-- @Indefinite@ is returned. This indicates that other authentication
-- methods should be tried.
| Indefinite
deriving (Eq, Show, Read, Generic, Ord, Functor, Traversable, Foldable)
instance Semigroup (AuthResult val) where
Indefinite <> y = y
x <> _ = x
instance Monoid (AuthResult val) where
mempty = Indefinite
mappend = (<>)
instance Applicative AuthResult where
pure = return
(<*>) = ap
instance Monad AuthResult where
return = Authenticated
Authenticated v >>= f = f v
BadPassword >>= _ = BadPassword
NoSuchUser >>= _ = NoSuchUser
Indefinite >>= _ = Indefinite
instance Alternative AuthResult where
empty = mzero
(<|>) = mplus
instance MonadPlus AuthResult where
mzero = mempty
mplus = (<>)
-- | An @AuthCheck@ is the function used to decide the authentication status
-- (the 'AuthResult') of a request. Different @AuthCheck@s may be combined as a
-- Monoid or Alternative; the semantics of this is that the *first*
-- non-'Indefinite' result from left to right is used and the rest are ignored.
newtype AuthCheck val = AuthCheck
{ runAuthCheck :: Request -> IO (AuthResult val) }
deriving (Generic, Functor)
instance Semigroup (AuthCheck val) where
AuthCheck f <> AuthCheck g = AuthCheck $ \x -> do
fx <- f x
case fx of
Indefinite -> g x
r -> pure r
instance Monoid (AuthCheck val) where
mempty = AuthCheck $ const $ return mempty
mappend = (<>)
instance Applicative AuthCheck where
pure = return
(<*>) = ap
instance Monad AuthCheck where
return = AuthCheck . return . return . return
AuthCheck ac >>= f = AuthCheck $ \req -> do
aresult <- ac req
case aresult of
Authenticated usr -> runAuthCheck (f usr) req
BadPassword -> return BadPassword
NoSuchUser -> return NoSuchUser
Indefinite -> return Indefinite
#if !MIN_VERSION_base(4,13,0)
fail = Fail.fail
#endif
instance Fail.MonadFail AuthCheck where
fail _ = AuthCheck . const $ return Indefinite
instance MonadReader Request AuthCheck where
ask = AuthCheck $ \x -> return (Authenticated x)
local f (AuthCheck check) = AuthCheck $ \req -> check (f req)
instance MonadIO AuthCheck where
liftIO action = AuthCheck $ const $ Authenticated <$> action
instance MonadTime AuthCheck where
currentTime = liftIO getCurrentTime
instance Alternative AuthCheck where
empty = mzero
(<|>) = mplus
instance MonadPlus AuthCheck where
mzero = mempty
mplus = (<>)

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module Servant.Auth.Server.SetCookieOrphan
{-# DEPRECATED "instance exists in http-api-data-0.3.9. This module will be removed in next major release." #-}
() where

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