mirror of
https://github.com/caddyserver/caddy.git
synced 2024-12-26 13:43:47 +03:00
Expose several Caddy HTTP Matchers to the CEL Matcher (#4715)
Co-authored-by: Francis Lavoie <lavofr@gmail.com>
This commit is contained in:
Tristan Swadell
GitHub
parent
98468af8b6
commit
10f85558ea
7 changed files with 1552 additions and 96 deletions
10
go.mod
10
go.mod
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@ -10,7 +10,7 @@ require (
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github.com/caddyserver/certmagic v0.16.1
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github.com/dustin/go-humanize v1.0.1-0.20200219035652-afde56e7acac
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github.com/go-chi/chi v4.1.2+incompatible
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github.com/google/cel-go v0.7.3
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github.com/google/cel-go v0.11.4
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github.com/google/uuid v1.3.0
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github.com/klauspost/compress v1.15.6
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github.com/klauspost/cpuid/v2 v2.0.13
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@ -32,8 +32,8 @@ require (
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golang.org/x/crypto v0.0.0-20220210151621-f4118a5b28e2
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golang.org/x/net v0.0.0-20220127200216-cd36cc0744dd
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golang.org/x/term v0.0.0-20210927222741-03fcf44c2211
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google.golang.org/genproto v0.0.0-20220222213610-43724f9ea8cf
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google.golang.org/protobuf v1.27.1
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google.golang.org/genproto v0.0.0-20220502173005-c8bf987b8c21
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google.golang.org/protobuf v1.28.0
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gopkg.in/natefinch/lumberjack.v2 v2.0.0
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gopkg.in/yaml.v3 v3.0.1
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)
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@ -43,7 +43,7 @@ require (
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github.com/AndreasBriese/bbloom v0.0.0-20190825152654-46b345b51c96 // indirect
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github.com/Masterminds/goutils v1.1.1 // indirect
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github.com/Masterminds/semver/v3 v3.1.1 // indirect
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github.com/antlr/antlr4 v0.0.0-20200503195918-621b933c7a7f // indirect
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github.com/antlr/antlr4/runtime/Go/antlr v0.0.0-20220418222510-f25a4f6275ed // indirect
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github.com/beorn7/perks v1.0.1 // indirect
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github.com/cenkalti/backoff/v4 v4.1.2 // indirect
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github.com/cespare/xxhash v1.1.0 // indirect
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@ -125,7 +125,7 @@ require (
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golang.org/x/text v0.3.8-0.20211004125949-5bd84dd9b33b // indirect
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golang.org/x/tools v0.1.7 // indirect
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golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
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google.golang.org/grpc v1.44.0 // indirect
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google.golang.org/grpc v1.46.0 // indirect
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gopkg.in/square/go-jose.v2 v2.6.0 // indirect
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gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 // indirect
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howett.net/plist v1.0.0 // indirect
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22
go.sum
22
go.sum
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@ -149,8 +149,8 @@ github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk5
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github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239/go.mod h1:2FmKhYUyUczH0OGQWaF5ceTx0UBShxjsH6f8oGKYe2c=
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github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be/go.mod h1:ySMOLuWl6zY27l47sB3qLNK6tF2fkHG55UZxx8oIVo4=
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github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
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github.com/antlr/antlr4 v0.0.0-20200503195918-621b933c7a7f h1:0cEys61Sr2hUBEXfNV8eyQP01oZuBgoMeHunebPirK8=
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github.com/antlr/antlr4 v0.0.0-20200503195918-621b933c7a7f/go.mod h1:T7PbCXFs94rrTttyxjbyT5+/1V8T2TYDejxUfHJjw1Y=
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github.com/antlr/antlr4/runtime/Go/antlr v0.0.0-20220418222510-f25a4f6275ed h1:ue9pVfIcP+QMEjfgo/Ez4ZjNZfonGgR6NgjMaJMu1Cg=
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github.com/antlr/antlr4/runtime/Go/antlr v0.0.0-20220418222510-f25a4f6275ed/go.mod h1:F7bn7fEU90QkQ3tnmaTx3LTKLEDqnwWODIYppRQ5hnY=
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github.com/aokoli/goutils v1.0.1/go.mod h1:SijmP0QR8LtwsmDs8Yii5Z/S4trXFGFC2oO5g9DP+DQ=
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github.com/apache/beam v2.28.0+incompatible/go.mod h1:/8NX3Qi8vGstDLLaeaU7+lzVEu/ACaQhYjeefzQ0y1o=
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github.com/apache/beam v2.30.0+incompatible/go.mod h1:/8NX3Qi8vGstDLLaeaU7+lzVEu/ACaQhYjeefzQ0y1o=
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@ -238,6 +238,7 @@ github.com/cncf/udpa/go v0.0.0-20210930031921-04548b0d99d4/go.mod h1:6pvJx4me5XP
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github.com/cncf/xds/go v0.0.0-20210312221358-fbca930ec8ed/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
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github.com/cncf/xds/go v0.0.0-20210805033703-aa0b78936158/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
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github.com/cncf/xds/go v0.0.0-20210922020428-25de7278fc84/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
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github.com/cncf/xds/go v0.0.0-20211001041855-01bcc9b48dfe/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
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github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
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github.com/cockroachdb/apd v1.1.0 h1:3LFP3629v+1aKXU5Q37mxmRxX/pIu1nijXydLShEq5I=
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github.com/cockroachdb/apd v1.1.0/go.mod h1:8Sl8LxpKi29FqWXR16WEFZRNSz3SoPzUzeMeY4+DwBQ=
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@ -311,6 +312,7 @@ github.com/envoyproxy/go-control-plane v0.9.9-0.20201210154907-fd9021fe5dad/go.m
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github.com/envoyproxy/go-control-plane v0.9.9-0.20210217033140-668b12f5399d/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk=
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github.com/envoyproxy/go-control-plane v0.9.9-0.20210512163311-63b5d3c536b0/go.mod h1:hliV/p42l8fGbc6Y9bQ70uLwIvmJyVE5k4iMKlh8wCQ=
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github.com/envoyproxy/go-control-plane v0.9.10-0.20210907150352-cf90f659a021/go.mod h1:AFq3mo9L8Lqqiid3OhADV3RfLJnjiw63cSpi+fDTRC0=
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github.com/envoyproxy/go-control-plane v0.10.2-0.20220325020618-49ff273808a1/go.mod h1:KJwIaB5Mv44NWtYuAOFCVOjcI94vtpEz2JU/D2v6IjE=
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github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
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github.com/envoyproxy/protoc-gen-validate v0.3.0-java/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
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github.com/etcd-io/gofail v0.0.0-20190801230047-ad7f989257ca/go.mod h1:49H/RkXP8pKaZy4h0d+NW16rSLhyVBt4o6VLJbmOqDE=
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@ -390,6 +392,7 @@ github.com/gogo/protobuf v1.3.0/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXP
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github.com/gogo/protobuf v1.3.1/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o=
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github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q=
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github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
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github.com/golang/glog v1.0.0/go.mod h1:EWib/APOK0SL3dFbYqvxE3UYd8E6s1ouQ7iEp/0LWV4=
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github.com/golang/groupcache v0.0.0-20160516000752-02826c3e7903/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
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github.com/golang/groupcache v0.0.0-20190129154638-5b532d6fd5ef/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
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github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
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@ -433,9 +436,8 @@ github.com/golang/snappy v0.0.4/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEW
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github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
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github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
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github.com/google/btree v1.0.1/go.mod h1:xXMiIv4Fb/0kKde4SpL7qlzvu5cMJDRkFDxJfI9uaxA=
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github.com/google/cel-go v0.7.3 h1:8v9BSN0avuGwrHFKNCjfiQ/CE6+D6sW+BDyOVoEeP6o=
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github.com/google/cel-go v0.7.3/go.mod h1:4EtyFAHT5xNr0Msu0MJjyGxPUgdr9DlcaPyzLt/kkt8=
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github.com/google/cel-spec v0.5.0/go.mod h1:Nwjgxy5CbjlPrtCWjeDjUyKMl8w41YBYGjsyDdqk0xA=
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github.com/google/cel-go v0.11.4 h1:wWOnKmLxALl3l9Av221MfIOWRiR01sDVljzg6LZ6Zn0=
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github.com/google/cel-go v0.11.4/go.mod h1:Av7CU6r6X3YmcHR9GXqVDaEJYfEtSxl6wvIjUQTriCw=
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github.com/google/certificate-transparency-go v1.0.21/go.mod h1:QeJfpSbVSfYc7RgB3gJFj9cbuQMMchQxrWXz8Ruopmg=
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github.com/google/certificate-transparency-go v1.1.2-0.20210422104406-9f33727a7a18/go.mod h1:6CKh9dscIRoqc2kC6YUFICHZMT9NrClyPrRVFrdw1QQ=
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github.com/google/certificate-transparency-go v1.1.2-0.20210512142713-bed466244fa6/go.mod h1:aF2dp7Dh81mY8Y/zpzyXps4fQW5zQbDu2CxfpJB6NkI=
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@ -1714,7 +1716,6 @@ google.golang.org/genproto v0.0.0-20200729003335-053ba62fc06f/go.mod h1:FWY/as6D
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google.golang.org/genproto v0.0.0-20200804131852-c06518451d9c/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
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google.golang.org/genproto v0.0.0-20200825200019-8632dd797987/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
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google.golang.org/genproto v0.0.0-20200904004341-0bd0a958aa1d/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
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google.golang.org/genproto v0.0.0-20201102152239-715cce707fb0/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
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google.golang.org/genproto v0.0.0-20201109203340-2640f1f9cdfb/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
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google.golang.org/genproto v0.0.0-20201201144952-b05cb90ed32e/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
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google.golang.org/genproto v0.0.0-20201210142538-e3217bee35cc/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
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@ -1754,8 +1755,9 @@ google.golang.org/genproto v0.0.0-20211221195035-429b39de9b1c/go.mod h1:5CzLGKJ6
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google.golang.org/genproto v0.0.0-20220126215142-9970aeb2e350/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
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google.golang.org/genproto v0.0.0-20220207164111-0872dc986b00/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
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google.golang.org/genproto v0.0.0-20220218161850-94dd64e39d7c/go.mod h1:kGP+zUP2Ddo0ayMi4YuN7C3WZyJvGLZRh8Z5wnAqvEI=
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google.golang.org/genproto v0.0.0-20220222213610-43724f9ea8cf h1:SVYXkUz2yZS9FWb2Gm8ivSlbNQzL2Z/NpPKE3RG2jWk=
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google.golang.org/genproto v0.0.0-20220222213610-43724f9ea8cf/go.mod h1:kGP+zUP2Ddo0ayMi4YuN7C3WZyJvGLZRh8Z5wnAqvEI=
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google.golang.org/genproto v0.0.0-20220502173005-c8bf987b8c21 h1:hrbNEivu7Zn1pxvHk6MBrq9iE22woVILTHqexqBxe6I=
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google.golang.org/genproto v0.0.0-20220502173005-c8bf987b8c21/go.mod h1:RAyBrSAP7Fh3Nc84ghnVLDPuV51xc9agzmm4Ph6i0Q4=
|
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google.golang.org/grpc v1.8.0/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw=
|
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google.golang.org/grpc v1.14.0/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw=
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google.golang.org/grpc v1.16.0/go.mod h1:0JHn/cJsOMiMfNA9+DeHDlAU7KAAB5GDlYFpa9MZMio=
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|
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@ -1793,8 +1795,9 @@ google.golang.org/grpc v1.40.0/go.mod h1:ogyxbiOoUXAkP+4+xa6PZSE9DZgIHtSpzjDTB9K
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google.golang.org/grpc v1.40.1/go.mod h1:ogyxbiOoUXAkP+4+xa6PZSE9DZgIHtSpzjDTB9KAK34=
|
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google.golang.org/grpc v1.41.0/go.mod h1:U3l9uK9J0sini8mHphKoXyaqDA/8VyGnDee1zzIUK6k=
|
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google.golang.org/grpc v1.43.0/go.mod h1:k+4IHHFw41K8+bbowsex27ge2rCb65oeWqe4jJ590SU=
|
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google.golang.org/grpc v1.44.0 h1:weqSxi/TMs1SqFRMHCtBgXRs8k3X39QIDEZ0pRcttUg=
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google.golang.org/grpc v1.44.0/go.mod h1:k+4IHHFw41K8+bbowsex27ge2rCb65oeWqe4jJ590SU=
|
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google.golang.org/grpc v1.46.0 h1:oCjezcn6g6A75TGoKYBPgKmVBLexhYLM6MebdrPApP8=
|
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google.golang.org/grpc v1.46.0/go.mod h1:vN9eftEi1UMyUsIF80+uQXhHjbXYbm0uXoFCACuMGWk=
|
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google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.1.0/go.mod h1:6Kw0yEErY5E/yWrBtf03jp27GLLJujG4z/JK95pnjjw=
|
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google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
|
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google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
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@ -1809,8 +1812,9 @@ google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlba
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google.golang.org/protobuf v1.25.1-0.20200805231151-a709e31e5d12/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
|
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google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
|
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google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
|
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google.golang.org/protobuf v1.27.1 h1:SnqbnDw1V7RiZcXPx5MEeqPv2s79L9i7BJUlG/+RurQ=
|
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google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
|
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google.golang.org/protobuf v1.28.0 h1:w43yiav+6bVFTBQFZX0r7ipe9JQ1QsbMgHwbBziscLw=
|
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google.golang.org/protobuf v1.28.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
|
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gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
|
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gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
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gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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@ -17,6 +17,7 @@ package caddyhttp
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import (
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"crypto/x509/pkix"
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"encoding/json"
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"errors"
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"fmt"
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"net/http"
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"reflect"
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@ -28,11 +29,15 @@ import (
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"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
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"github.com/google/cel-go/cel"
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"github.com/google/cel-go/checker/decls"
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"github.com/google/cel-go/common"
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"github.com/google/cel-go/common/operators"
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"github.com/google/cel-go/common/types"
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"github.com/google/cel-go/common/types/ref"
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"github.com/google/cel-go/common/types/traits"
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"github.com/google/cel-go/ext"
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"github.com/google/cel-go/interpreter"
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"github.com/google/cel-go/interpreter/functions"
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"github.com/google/cel-go/parser"
|
||||
"go.uber.org/zap"
|
||||
exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
|
||||
"google.golang.org/protobuf/proto"
|
||||
|
|
@ -96,6 +101,29 @@ func (m *MatchExpression) Provision(ctx caddy.Context) error {
|
|||
// our type adapter expands CEL's standard type support
|
||||
m.ta = celTypeAdapter{}
|
||||
|
||||
// initialize the CEL libraries from the Matcher implementations which
|
||||
// have been configured to support CEL.
|
||||
matcherLibProducers := []CELLibraryProducer{}
|
||||
for _, info := range caddy.GetModules("http.matchers") {
|
||||
p, ok := info.New().(CELLibraryProducer)
|
||||
if ok {
|
||||
matcherLibProducers = append(matcherLibProducers, p)
|
||||
}
|
||||
}
|
||||
// Assemble the compilation and program options from the different library
|
||||
// producers into a single cel.Library implementation.
|
||||
matcherEnvOpts := []cel.EnvOption{}
|
||||
matcherProgramOpts := []cel.ProgramOption{}
|
||||
for _, producer := range matcherLibProducers {
|
||||
l, err := producer.CELLibrary(ctx)
|
||||
if err != nil {
|
||||
return fmt.Errorf("error initializing CEL library for %T: %v", producer, err)
|
||||
}
|
||||
matcherEnvOpts = append(matcherEnvOpts, l.CompileOptions()...)
|
||||
matcherProgramOpts = append(matcherProgramOpts, l.ProgramOptions()...)
|
||||
}
|
||||
matcherLib := cel.Lib(NewMatcherCELLibrary(matcherEnvOpts, matcherProgramOpts))
|
||||
|
||||
// create the CEL environment
|
||||
env, err := cel.NewEnv(
|
||||
cel.Declarations(
|
||||
|
|
@ -107,6 +135,7 @@ func (m *MatchExpression) Provision(ctx caddy.Context) error {
|
|||
),
|
||||
cel.CustomTypeAdapter(m.ta),
|
||||
ext.Strings(),
|
||||
matcherLib,
|
||||
)
|
||||
if err != nil {
|
||||
return fmt.Errorf("setting up CEL environment: %v", err)
|
||||
|
|
@ -114,7 +143,7 @@ func (m *MatchExpression) Provision(ctx caddy.Context) error {
|
|||
|
||||
// parse and type-check the expression
|
||||
checked, issues := env.Compile(m.expandedExpr)
|
||||
if issues != nil && issues.Err() != nil {
|
||||
if issues.Err() != nil {
|
||||
return fmt.Errorf("compiling CEL program: %s", issues.Err())
|
||||
}
|
||||
|
||||
|
|
@ -126,6 +155,7 @@ func (m *MatchExpression) Provision(ctx caddy.Context) error {
|
|||
|
||||
// compile the "program"
|
||||
m.prg, err = env.Program(checked,
|
||||
cel.EvalOptions(cel.OptOptimize),
|
||||
cel.Functions(
|
||||
&functions.Overload{
|
||||
Operator: placeholderFuncName,
|
||||
|
|
@ -133,7 +163,6 @@ func (m *MatchExpression) Provision(ctx caddy.Context) error {
|
|||
},
|
||||
),
|
||||
)
|
||||
|
||||
if err != nil {
|
||||
return fmt.Errorf("compiling CEL program: %s", err)
|
||||
}
|
||||
|
|
@ -142,18 +171,17 @@ func (m *MatchExpression) Provision(ctx caddy.Context) error {
|
|||
|
||||
// Match returns true if r matches m.
|
||||
func (m MatchExpression) Match(r *http.Request) bool {
|
||||
out, _, err := m.prg.Eval(map[string]interface{}{
|
||||
"request": celHTTPRequest{r},
|
||||
})
|
||||
celReq := celHTTPRequest{r}
|
||||
out, _, err := m.prg.Eval(celReq)
|
||||
if err != nil {
|
||||
m.log.Error("evaluating expression", zap.Error(err))
|
||||
SetVar(r.Context(), MatcherErrorVarKey, err)
|
||||
return false
|
||||
}
|
||||
if outBool, ok := out.Value().(bool); ok {
|
||||
return outBool
|
||||
}
|
||||
return false
|
||||
|
||||
}
|
||||
|
||||
// UnmarshalCaddyfile implements caddyfile.Unmarshaler.
|
||||
|
|
@ -175,13 +203,15 @@ func (m MatchExpression) caddyPlaceholderFunc(lhs, rhs ref.Val) ref.Val {
|
|||
if !ok {
|
||||
return types.NewErr(
|
||||
"invalid request of type '%v' to "+placeholderFuncName+"(request, placeholderVarName)",
|
||||
lhs.Type())
|
||||
lhs.Type(),
|
||||
)
|
||||
}
|
||||
phStr, ok := rhs.(types.String)
|
||||
if !ok {
|
||||
return types.NewErr(
|
||||
"invalid placeholder variable name of type '%v' to "+placeholderFuncName+"(request, placeholderVarName)",
|
||||
rhs.Type())
|
||||
rhs.Type(),
|
||||
)
|
||||
}
|
||||
|
||||
repl := celReq.Context().Value(caddy.ReplacerCtxKey).(*caddy.Replacer)
|
||||
|
|
@ -193,10 +223,23 @@ func (m MatchExpression) caddyPlaceholderFunc(lhs, rhs ref.Val) ref.Val {
|
|||
// httpRequestCELType is the type representation of a native HTTP request.
|
||||
var httpRequestCELType = types.NewTypeValue("http.Request", traits.ReceiverType)
|
||||
|
||||
// cellHTTPRequest wraps an http.Request with
|
||||
// methods to satisfy the ref.Val interface.
|
||||
// celHTTPRequest wraps an http.Request with ref.Val interface methods.
|
||||
//
|
||||
// This type also implements the interpreter.Activation interface which
|
||||
// drops allocation costs for CEL expression evaluations by roughly half.
|
||||
type celHTTPRequest struct{ *http.Request }
|
||||
|
||||
func (cr celHTTPRequest) ResolveName(name string) (interface{}, bool) {
|
||||
if name == "request" {
|
||||
return cr, true
|
||||
}
|
||||
return nil, false
|
||||
}
|
||||
|
||||
func (cr celHTTPRequest) Parent() interpreter.Activation {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (cr celHTTPRequest) ConvertToNative(typeDesc reflect.Type) (interface{}, error) {
|
||||
return cr.Request, nil
|
||||
}
|
||||
|
|
@ -250,12 +293,428 @@ func (celTypeAdapter) NativeToValue(value interface{}) ref.Val {
|
|||
return types.DefaultTypeAdapter.NativeToValue(value)
|
||||
}
|
||||
|
||||
// CELLibraryProducer provide CEL libraries that expose a Matcher
|
||||
// implementation as a first class function within the CEL expression
|
||||
// matcher.
|
||||
type CELLibraryProducer interface {
|
||||
// CELLibrary creates a cel.Library which makes it possible to use the
|
||||
// target object within CEL expression matchers.
|
||||
CELLibrary(caddy.Context) (cel.Library, error)
|
||||
}
|
||||
|
||||
// CELMatcherImpl creates a new cel.Library based on the following pieces of
|
||||
// data:
|
||||
//
|
||||
// - macroName: the function name to be used within CEL. This will be a macro
|
||||
// and not a function proper.
|
||||
// - funcName: the function overload name generated by the CEL macro used to
|
||||
// represent the matcher.
|
||||
// - matcherDataTypes: the argument types to the macro.
|
||||
// - fac: a matcherFactory implementation which converts from CEL constant
|
||||
// values to a Matcher instance.
|
||||
//
|
||||
// Note, macro names and function names must not collide with other macros or
|
||||
// functions exposed within CEL expressions, or an error will be produced
|
||||
// during the expression matcher plan time.
|
||||
//
|
||||
// The existing CELMatcherImpl support methods are configured to support a
|
||||
// limited set of function signatures. For strong type validation you may need
|
||||
// to provide a custom macro which does a more detailed analysis of the CEL
|
||||
// literal provided to the macro as an argument.
|
||||
func CELMatcherImpl(macroName, funcName string, matcherDataTypes []*exprpb.Type, fac CELMatcherFactory) (cel.Library, error) {
|
||||
requestType := decls.NewObjectType("http.Request")
|
||||
var macro parser.Macro
|
||||
switch len(matcherDataTypes) {
|
||||
case 1:
|
||||
matcherDataType := matcherDataTypes[0]
|
||||
if isCELStringListType(matcherDataType) {
|
||||
macro = parser.NewGlobalVarArgMacro(macroName, celMatcherStringListMacroExpander(funcName))
|
||||
} else if isCELStringType(matcherDataType) {
|
||||
macro = parser.NewGlobalMacro(macroName, 1, celMatcherStringMacroExpander(funcName))
|
||||
} else if isCELJSONType(matcherDataType) {
|
||||
macro = parser.NewGlobalMacro(macroName, 1, celMatcherJSONMacroExpander(funcName))
|
||||
} else {
|
||||
return nil, fmt.Errorf("unsupported matcher data type: %s", cel.FormatType(matcherDataType))
|
||||
}
|
||||
case 2:
|
||||
if isCELStringType(matcherDataTypes[0]) && isCELStringType(matcherDataTypes[1]) {
|
||||
macro = parser.NewGlobalMacro(macroName, 2, celMatcherStringListMacroExpander(funcName))
|
||||
matcherDataTypes = []*exprpb.Type{CelTypeListString}
|
||||
} else {
|
||||
return nil, fmt.Errorf(
|
||||
"unsupported matcher data type: %s, %s",
|
||||
cel.FormatType(matcherDataTypes[0]), cel.FormatType(matcherDataTypes[1]),
|
||||
)
|
||||
}
|
||||
case 3:
|
||||
if isCELStringType(matcherDataTypes[0]) && isCELStringType(matcherDataTypes[1]) && isCELStringType(matcherDataTypes[2]) {
|
||||
macro = parser.NewGlobalMacro(macroName, 3, celMatcherStringListMacroExpander(funcName))
|
||||
matcherDataTypes = []*exprpb.Type{CelTypeListString}
|
||||
} else {
|
||||
return nil, fmt.Errorf(
|
||||
"unsupported matcher data type: %s, %s, %s",
|
||||
cel.FormatType(matcherDataTypes[0]), cel.FormatType(matcherDataTypes[1]), cel.FormatType(matcherDataTypes[2]),
|
||||
)
|
||||
}
|
||||
}
|
||||
envOptions := []cel.EnvOption{
|
||||
cel.Macros(macro),
|
||||
cel.Declarations(
|
||||
decls.NewFunction(funcName,
|
||||
decls.NewOverload(
|
||||
funcName,
|
||||
append([]*exprpb.Type{requestType}, matcherDataTypes...),
|
||||
decls.Bool,
|
||||
),
|
||||
),
|
||||
),
|
||||
}
|
||||
programOptions := []cel.ProgramOption{
|
||||
cel.CustomDecorator(CELMatcherDecorator(funcName, fac)),
|
||||
cel.Functions(
|
||||
&functions.Overload{
|
||||
Operator: funcName,
|
||||
Binary: CELMatcherRuntimeFunction(funcName, fac),
|
||||
},
|
||||
),
|
||||
}
|
||||
return NewMatcherCELLibrary(envOptions, programOptions), nil
|
||||
}
|
||||
|
||||
// CELMatcherFactory converts a constant CEL value into a RequestMatcher.
|
||||
type CELMatcherFactory func(data ref.Val) (RequestMatcher, error)
|
||||
|
||||
// matcherCELLibrary is a simplistic configurable cel.Library implementation.
|
||||
type matcherCELLibary struct {
|
||||
envOptions []cel.EnvOption
|
||||
programOptions []cel.ProgramOption
|
||||
}
|
||||
|
||||
// NewMatcherCELLibrary creates a matcherLibrary from option setes.
|
||||
func NewMatcherCELLibrary(envOptions []cel.EnvOption, programOptions []cel.ProgramOption) cel.Library {
|
||||
return &matcherCELLibary{
|
||||
envOptions: envOptions,
|
||||
programOptions: programOptions,
|
||||
}
|
||||
}
|
||||
|
||||
func (lib *matcherCELLibary) CompileOptions() []cel.EnvOption {
|
||||
return lib.envOptions
|
||||
}
|
||||
|
||||
func (lib *matcherCELLibary) ProgramOptions() []cel.ProgramOption {
|
||||
return lib.programOptions
|
||||
}
|
||||
|
||||
// CELMatcherDecorator matches a call overload generated by a CEL macro
|
||||
// that takes a single argument, and optimizes the implementation to precompile
|
||||
// the matcher and return a function that references the precompiled and
|
||||
// provisioned matcher.
|
||||
func CELMatcherDecorator(funcName string, fac CELMatcherFactory) interpreter.InterpretableDecorator {
|
||||
return func(i interpreter.Interpretable) (interpreter.Interpretable, error) {
|
||||
call, ok := i.(interpreter.InterpretableCall)
|
||||
if !ok {
|
||||
return i, nil
|
||||
}
|
||||
if call.OverloadID() != funcName {
|
||||
return i, nil
|
||||
}
|
||||
callArgs := call.Args()
|
||||
reqAttr, ok := callArgs[0].(interpreter.InterpretableAttribute)
|
||||
if !ok {
|
||||
return nil, errors.New("missing 'request' argument")
|
||||
}
|
||||
nsAttr, ok := reqAttr.Attr().(interpreter.NamespacedAttribute)
|
||||
if !ok {
|
||||
return nil, errors.New("missing 'request' argument")
|
||||
}
|
||||
varNames := nsAttr.CandidateVariableNames()
|
||||
if len(varNames) != 1 || len(varNames) == 1 && varNames[0] != "request" {
|
||||
return nil, errors.New("missing 'request' argument")
|
||||
}
|
||||
matcherData, ok := callArgs[1].(interpreter.InterpretableConst)
|
||||
if !ok {
|
||||
// If the matcher arguments are not constant, then this means
|
||||
// they contain a Caddy placeholder reference and the evaluation
|
||||
// and matcher provisioning should be handled at dynamically.
|
||||
return i, nil
|
||||
}
|
||||
matcher, err := fac(matcherData.Value())
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return interpreter.NewCall(
|
||||
i.ID(), funcName, funcName+"_opt",
|
||||
[]interpreter.Interpretable{reqAttr},
|
||||
func(args ...ref.Val) ref.Val {
|
||||
// The request value, guaranteed to be of type celHTTPRequest
|
||||
celReq := args[0]
|
||||
// If needed this call could be changed to convert the value
|
||||
// to a *http.Request using CEL's ConvertToNative method.
|
||||
httpReq := celReq.Value().(celHTTPRequest)
|
||||
return types.Bool(matcher.Match(httpReq.Request))
|
||||
},
|
||||
), nil
|
||||
}
|
||||
}
|
||||
|
||||
// CELMatcherRuntimeFunction creates a function binding for when the input to the matcher
|
||||
// is dynamically resolved rather than a set of static constant values.
|
||||
func CELMatcherRuntimeFunction(funcName string, fac CELMatcherFactory) functions.BinaryOp {
|
||||
return func(celReq, matcherData ref.Val) ref.Val {
|
||||
matcher, err := fac(matcherData)
|
||||
if err != nil {
|
||||
return types.NewErr(err.Error())
|
||||
}
|
||||
httpReq := celReq.Value().(celHTTPRequest)
|
||||
return types.Bool(matcher.Match(httpReq.Request))
|
||||
}
|
||||
}
|
||||
|
||||
// celMatcherStringListMacroExpander validates that the macro is called
|
||||
// with a variable number of string arguments (at least one).
|
||||
//
|
||||
// The arguments are collected into a single list argument the following
|
||||
// function call returned: <funcName>(request, [args])
|
||||
func celMatcherStringListMacroExpander(funcName string) parser.MacroExpander {
|
||||
return func(eh parser.ExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {
|
||||
matchArgs := []*exprpb.Expr{}
|
||||
if len(args) == 0 {
|
||||
return nil, &common.Error{
|
||||
Message: "matcher requires at least one argument",
|
||||
}
|
||||
}
|
||||
for _, arg := range args {
|
||||
if isCELStringExpr(arg) {
|
||||
matchArgs = append(matchArgs, arg)
|
||||
} else {
|
||||
return nil, &common.Error{
|
||||
Location: eh.OffsetLocation(arg.GetId()),
|
||||
Message: "matcher arguments must be string constants",
|
||||
}
|
||||
}
|
||||
}
|
||||
return eh.GlobalCall(funcName, eh.Ident("request"), eh.NewList(matchArgs...)), nil
|
||||
}
|
||||
}
|
||||
|
||||
// celMatcherStringMacroExpander validates that the macro is called a single
|
||||
// string argument.
|
||||
//
|
||||
// The following function call is returned: <funcName>(request, arg)
|
||||
func celMatcherStringMacroExpander(funcName string) parser.MacroExpander {
|
||||
return func(eh parser.ExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {
|
||||
if len(args) != 1 {
|
||||
return nil, &common.Error{
|
||||
Message: "matcher requires one argument",
|
||||
}
|
||||
}
|
||||
if isCELStringExpr(args[0]) {
|
||||
return eh.GlobalCall(funcName, eh.Ident("request"), args[0]), nil
|
||||
}
|
||||
return nil, &common.Error{
|
||||
Location: eh.OffsetLocation(args[0].GetId()),
|
||||
Message: "matcher argument must be a string literal",
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// celMatcherStringMacroExpander validates that the macro is called a single
|
||||
// map literal argument.
|
||||
//
|
||||
// The following function call is returned: <funcName>(request, arg)
|
||||
func celMatcherJSONMacroExpander(funcName string) parser.MacroExpander {
|
||||
return func(eh parser.ExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {
|
||||
if len(args) != 1 {
|
||||
return nil, &common.Error{
|
||||
Message: "matcher requires a map literal argument",
|
||||
}
|
||||
}
|
||||
arg := args[0]
|
||||
switch arg.GetExprKind().(type) {
|
||||
case *exprpb.Expr_StructExpr:
|
||||
structExpr := arg.GetStructExpr()
|
||||
if structExpr.GetMessageName() != "" {
|
||||
return nil, &common.Error{
|
||||
Location: eh.OffsetLocation(arg.GetId()),
|
||||
Message: fmt.Sprintf(
|
||||
"matcher input must be a map literal, not a %s",
|
||||
structExpr.GetMessageName(),
|
||||
),
|
||||
}
|
||||
}
|
||||
for _, entry := range structExpr.GetEntries() {
|
||||
isStringPlaceholder := isCELStringExpr(entry.GetMapKey())
|
||||
if !isStringPlaceholder {
|
||||
return nil, &common.Error{
|
||||
Location: eh.OffsetLocation(entry.GetId()),
|
||||
Message: "matcher map keys must be string literals",
|
||||
}
|
||||
}
|
||||
isStringListPlaceholder := isCELStringExpr(entry.GetValue()) ||
|
||||
isCELStringListLiteral(entry.GetValue())
|
||||
if !isStringListPlaceholder {
|
||||
return nil, &common.Error{
|
||||
Location: eh.OffsetLocation(entry.GetValue().GetId()),
|
||||
Message: "matcher map values must be string or list literals",
|
||||
}
|
||||
}
|
||||
}
|
||||
return eh.GlobalCall(funcName, eh.Ident("request"), arg), nil
|
||||
}
|
||||
|
||||
return nil, &common.Error{
|
||||
Location: eh.OffsetLocation(arg.GetId()),
|
||||
Message: "matcher requires a map literal argument",
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// CELValueToMapStrList converts a CEL value to a map[string][]string
|
||||
//
|
||||
// Earlier validation stages should guarantee that the value has this type
|
||||
// at compile time, and that the runtime value type is map[string]interface{}.
|
||||
// The reason for the slight difference in value type is that CEL allows for
|
||||
// map literals containing heterogeneous values, in this case string and list
|
||||
// of string.
|
||||
func CELValueToMapStrList(data ref.Val) (map[string][]string, error) {
|
||||
mapStrType := reflect.TypeOf(map[string]interface{}{})
|
||||
mapStrRaw, err := data.ConvertToNative(mapStrType)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
mapStrIface := mapStrRaw.(map[string]interface{})
|
||||
mapStrListStr := make(map[string][]string, len(mapStrIface))
|
||||
for k, v := range mapStrIface {
|
||||
switch val := v.(type) {
|
||||
case string:
|
||||
mapStrListStr[k] = []string{val}
|
||||
case types.String:
|
||||
mapStrListStr[k] = []string{string(val)}
|
||||
case []string:
|
||||
mapStrListStr[k] = val
|
||||
case []ref.Val:
|
||||
convVals := make([]string, len(val))
|
||||
for i, elem := range val {
|
||||
strVal, ok := elem.(types.String)
|
||||
if !ok {
|
||||
return nil, fmt.Errorf("unsupported value type in header match: %T", val)
|
||||
}
|
||||
convVals[i] = string(strVal)
|
||||
}
|
||||
mapStrListStr[k] = convVals
|
||||
default:
|
||||
return nil, fmt.Errorf("unsupported value type in header match: %T", val)
|
||||
}
|
||||
}
|
||||
return mapStrListStr, nil
|
||||
}
|
||||
|
||||
// isCELJSONType returns whether the type corresponds to JSON input.
|
||||
func isCELJSONType(t *exprpb.Type) bool {
|
||||
switch t.GetTypeKind().(type) {
|
||||
case *exprpb.Type_MapType_:
|
||||
mapType := t.GetMapType()
|
||||
return isCELStringType(mapType.GetKeyType()) && mapType.GetValueType().GetDyn() != nil
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// isCELStringType returns whether the type corresponds to a string.
|
||||
func isCELStringType(t *exprpb.Type) bool {
|
||||
switch t.GetTypeKind().(type) {
|
||||
case *exprpb.Type_Primitive:
|
||||
return t.GetPrimitive() == exprpb.Type_STRING
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// isCELStringExpr indicates whether the expression is a supported string expression
|
||||
func isCELStringExpr(e *exprpb.Expr) bool {
|
||||
return isCELStringLiteral(e) || isCELCaddyPlaceholderCall(e) || isCELConcatCall(e)
|
||||
}
|
||||
|
||||
// isCELStringLiteral returns whether the expression is a CEL string literal.
|
||||
func isCELStringLiteral(e *exprpb.Expr) bool {
|
||||
switch e.GetExprKind().(type) {
|
||||
case *exprpb.Expr_ConstExpr:
|
||||
constant := e.GetConstExpr()
|
||||
switch constant.GetConstantKind().(type) {
|
||||
case *exprpb.Constant_StringValue:
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// isCELCaddyPlaceholderCall returns whether the expression is a caddy placeholder call.
|
||||
func isCELCaddyPlaceholderCall(e *exprpb.Expr) bool {
|
||||
switch e.GetExprKind().(type) {
|
||||
case *exprpb.Expr_CallExpr:
|
||||
call := e.GetCallExpr()
|
||||
if call.GetFunction() == "caddyPlaceholder" {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// isCELConcatCall tests whether the expression is a concat function (+) with string, placeholder, or
|
||||
// other concat call arguments.
|
||||
func isCELConcatCall(e *exprpb.Expr) bool {
|
||||
switch e.GetExprKind().(type) {
|
||||
case *exprpb.Expr_CallExpr:
|
||||
call := e.GetCallExpr()
|
||||
if call.GetTarget() != nil {
|
||||
return false
|
||||
}
|
||||
if call.GetFunction() != operators.Add {
|
||||
return false
|
||||
}
|
||||
for _, arg := range call.GetArgs() {
|
||||
if !isCELStringExpr(arg) {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// isCELStringListType returns whether the type corresponds to a list of strings.
|
||||
func isCELStringListType(t *exprpb.Type) bool {
|
||||
switch t.GetTypeKind().(type) {
|
||||
case *exprpb.Type_ListType_:
|
||||
return isCELStringType(t.GetListType().GetElemType())
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// isCELStringListLiteral returns whether the expression resolves to a list literal
|
||||
// containing only string constants or a placeholder call.
|
||||
func isCELStringListLiteral(e *exprpb.Expr) bool {
|
||||
switch e.GetExprKind().(type) {
|
||||
case *exprpb.Expr_ListExpr:
|
||||
list := e.GetListExpr()
|
||||
for _, elem := range list.GetElements() {
|
||||
if !isCELStringExpr(elem) {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// Variables used for replacing Caddy placeholders in CEL
|
||||
// expressions with a proper CEL function call; this is
|
||||
// just for syntactic sugar.
|
||||
var (
|
||||
placeholderRegexp = regexp.MustCompile(`{([\w.-]+)}`)
|
||||
placeholderRegexp = regexp.MustCompile(`{([a-zA-Z][\w.-]+)}`)
|
||||
placeholderExpansion = `caddyPlaceholder(request, "${1}")`
|
||||
|
||||
CelTypeListString = decls.NewListType(decls.String)
|
||||
CelTypeJson = decls.NewMapType(decls.String, decls.Dyn)
|
||||
)
|
||||
|
||||
var httpRequestObjectType = decls.NewObjectType("http.Request")
|
||||
|
|
|
|||
|
|
@ -19,12 +19,462 @@ import (
|
|||
"crypto/tls"
|
||||
"crypto/x509"
|
||||
"encoding/pem"
|
||||
"net/http"
|
||||
"net/http/httptest"
|
||||
"testing"
|
||||
|
||||
"github.com/caddyserver/caddy/v2"
|
||||
)
|
||||
|
||||
var (
|
||||
clientCert = []byte(`-----BEGIN CERTIFICATE-----
|
||||
MIIB9jCCAV+gAwIBAgIBAjANBgkqhkiG9w0BAQsFADAYMRYwFAYDVQQDDA1DYWRk
|
||||
eSBUZXN0IENBMB4XDTE4MDcyNDIxMzUwNVoXDTI4MDcyMTIxMzUwNVowHTEbMBkG
|
||||
A1UEAwwSY2xpZW50LmxvY2FsZG9tYWluMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCB
|
||||
iQKBgQDFDEpzF0ew68teT3xDzcUxVFaTII+jXH1ftHXxxP4BEYBU4q90qzeKFneF
|
||||
z83I0nC0WAQ45ZwHfhLMYHFzHPdxr6+jkvKPASf0J2v2HDJuTM1bHBbik5Ls5eq+
|
||||
fVZDP8o/VHKSBKxNs8Goc2NTsr5b07QTIpkRStQK+RJALk4x9QIDAQABo0swSTAJ
|
||||
BgNVHRMEAjAAMAsGA1UdDwQEAwIHgDAaBgNVHREEEzARgglsb2NhbGhvc3SHBH8A
|
||||
AAEwEwYDVR0lBAwwCgYIKwYBBQUHAwIwDQYJKoZIhvcNAQELBQADgYEANSjz2Sk+
|
||||
eqp31wM9il1n+guTNyxJd+FzVAH+hCZE5K+tCgVDdVFUlDEHHbS/wqb2PSIoouLV
|
||||
3Q9fgDkiUod+uIK0IynzIKvw+Cjg+3nx6NQ0IM0zo8c7v398RzB4apbXKZyeeqUH
|
||||
9fNwfEi+OoXR6s+upSKobCmLGLGi9Na5s5g=
|
||||
-----END CERTIFICATE-----`)
|
||||
|
||||
matcherTests = []struct {
|
||||
name string
|
||||
expression *MatchExpression
|
||||
urlTarget string
|
||||
httpMethod string
|
||||
httpHeader *http.Header
|
||||
wantErr bool
|
||||
wantResult bool
|
||||
clientCertificate []byte
|
||||
}{
|
||||
{
|
||||
name: "boolean matches succeed for placeholder http.request.tls.client.subject",
|
||||
expression: &MatchExpression{
|
||||
Expr: "{http.request.tls.client.subject} == 'CN=client.localdomain'",
|
||||
},
|
||||
clientCertificate: clientCert,
|
||||
urlTarget: "https://example.com/foo",
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "header matches (MatchHeader)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `header({'Field': 'foo'})`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo",
|
||||
httpHeader: &http.Header{"Field": []string{"foo", "bar"}},
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "header error (MatchHeader)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `header('foo')`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo",
|
||||
httpHeader: &http.Header{"Field": []string{"foo", "bar"}},
|
||||
wantErr: true,
|
||||
},
|
||||
{
|
||||
name: "header_regexp matches (MatchHeaderRE)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `header_regexp('Field', 'fo{2}')`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo",
|
||||
httpHeader: &http.Header{"Field": []string{"foo", "bar"}},
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "header_regexp matches with name (MatchHeaderRE)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `header_regexp('foo', 'Field', 'fo{2}')`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo",
|
||||
httpHeader: &http.Header{"Field": []string{"foo", "bar"}},
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "header_regexp does not match (MatchHeaderRE)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `header_regexp('foo', 'Nope', 'fo{2}')`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo",
|
||||
httpHeader: &http.Header{"Field": []string{"foo", "bar"}},
|
||||
wantResult: false,
|
||||
},
|
||||
{
|
||||
name: "header_regexp error (MatchHeaderRE)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `header_regexp('foo')`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo",
|
||||
httpHeader: &http.Header{"Field": []string{"foo", "bar"}},
|
||||
wantErr: true,
|
||||
},
|
||||
{
|
||||
name: "host matches localhost (MatchHost)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `host('localhost')`,
|
||||
},
|
||||
urlTarget: "http://localhost",
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "host matches (MatchHost)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `host('*.example.com')`,
|
||||
},
|
||||
urlTarget: "https://foo.example.com",
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "host does not match (MatchHost)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `host('example.net', '*.example.com')`,
|
||||
},
|
||||
urlTarget: "https://foo.example.org",
|
||||
wantResult: false,
|
||||
},
|
||||
{
|
||||
name: "host error (MatchHost)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `host(80)`,
|
||||
},
|
||||
urlTarget: "http://localhost:80",
|
||||
wantErr: true,
|
||||
},
|
||||
{
|
||||
name: "method does not match (MatchMethod)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `method('PUT')`,
|
||||
},
|
||||
urlTarget: "https://foo.example.com",
|
||||
httpMethod: "GET",
|
||||
wantResult: false,
|
||||
},
|
||||
{
|
||||
name: "method matches (MatchMethod)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `method('DELETE', 'PUT', 'POST')`,
|
||||
},
|
||||
urlTarget: "https://foo.example.com",
|
||||
httpMethod: "PUT",
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "method error not enough arguments (MatchMethod)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `method()`,
|
||||
},
|
||||
urlTarget: "https://foo.example.com",
|
||||
httpMethod: "PUT",
|
||||
wantErr: true,
|
||||
},
|
||||
{
|
||||
name: "path matches substring (MatchPath)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `path('*substring*')`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo/substring/bar.txt",
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "path does not match (MatchPath)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `path('/foo')`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo/bar",
|
||||
wantResult: false,
|
||||
},
|
||||
{
|
||||
name: "path matches end url fragment (MatchPath)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `path('/foo')`,
|
||||
},
|
||||
urlTarget: "https://example.com/FOO",
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "path matches end fragment with substring prefix (MatchPath)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `path('/foo*')`,
|
||||
},
|
||||
urlTarget: "https://example.com/FOOOOO",
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "path matches one of multiple (MatchPath)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `path('/foo', '/foo/*', '/bar', '/bar/*', '/baz', '/baz*')`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo",
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "path_regexp with empty regex matches empty path (MatchPathRE)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `path_regexp('')`,
|
||||
},
|
||||
urlTarget: "https://example.com/",
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "path_regexp with slash regex matches empty path (MatchPathRE)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `path_regexp('/')`,
|
||||
},
|
||||
urlTarget: "https://example.com/",
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "path_regexp matches end url fragment (MatchPathRE)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `path_regexp('^/foo')`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo/",
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "path_regexp does not match fragment at end (MatchPathRE)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `path_regexp('bar_at_start', '^/bar')`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo/bar",
|
||||
wantResult: false,
|
||||
},
|
||||
{
|
||||
name: "protocol matches (MatchProtocol)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `protocol('HTTPs')`,
|
||||
},
|
||||
urlTarget: "https://example.com",
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "protocol does not match (MatchProtocol)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `protocol('grpc')`,
|
||||
},
|
||||
urlTarget: "https://example.com",
|
||||
wantResult: false,
|
||||
},
|
||||
{
|
||||
name: "protocol invocation error no args (MatchProtocol)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `protocol()`,
|
||||
},
|
||||
urlTarget: "https://example.com",
|
||||
wantErr: true,
|
||||
},
|
||||
{
|
||||
name: "protocol invocation error too many args (MatchProtocol)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `protocol('grpc', 'https')`,
|
||||
},
|
||||
urlTarget: "https://example.com",
|
||||
wantErr: true,
|
||||
},
|
||||
{
|
||||
name: "protocol invocation error wrong arg type (MatchProtocol)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `protocol(true)`,
|
||||
},
|
||||
urlTarget: "https://example.com",
|
||||
wantErr: true,
|
||||
},
|
||||
{
|
||||
name: "query does not match against a specific value (MatchQuery)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `query({"debug": "1"})`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo",
|
||||
wantResult: false,
|
||||
},
|
||||
{
|
||||
name: "query matches against a specific value (MatchQuery)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `query({"debug": "1"})`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo/?debug=1",
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "query matches against multiple values (MatchQuery)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `query({"debug": ["0", "1", {http.request.uri.query.debug}+"1"]})`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo/?debug=1",
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "query matches against a wildcard (MatchQuery)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `query({"debug": ["*"]})`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo/?debug=something",
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "query matches against a placeholder value (MatchQuery)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `query({"debug": {http.request.uri.query.debug}})`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo/?debug=1",
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "query error bad map key type (MatchQuery)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `query({1: "1"})`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo",
|
||||
wantErr: true,
|
||||
},
|
||||
{
|
||||
name: "query error typed struct instead of map (MatchQuery)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `query(Message{field: "1"})`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo",
|
||||
wantErr: true,
|
||||
},
|
||||
{
|
||||
name: "query error bad map value type (MatchQuery)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `query({"debug": 1})`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo/?debug=1",
|
||||
wantErr: true,
|
||||
},
|
||||
{
|
||||
name: "query error no args (MatchQuery)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `query()`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo/?debug=1",
|
||||
wantErr: true,
|
||||
},
|
||||
{
|
||||
name: "remote_ip error no args (MatchRemoteIP)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `remote_ip()`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo",
|
||||
wantErr: true,
|
||||
},
|
||||
{
|
||||
name: "remote_ip single IP match (MatchRemoteIP)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `remote_ip('192.0.2.1')`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo",
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "remote_ip forwarded (MatchRemoteIP)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `remote_ip('forwarded', '192.0.2.1')`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo",
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "remote_ip forwarded not first (MatchRemoteIP)",
|
||||
expression: &MatchExpression{
|
||||
Expr: `remote_ip('192.0.2.1', 'forwarded')`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo",
|
||||
wantErr: true,
|
||||
},
|
||||
}
|
||||
)
|
||||
|
||||
func TestMatchExpressionMatch(t *testing.T) {
|
||||
for _, tst := range matcherTests {
|
||||
tc := tst
|
||||
t.Run(tc.name, func(t *testing.T) {
|
||||
err := tc.expression.Provision(caddy.Context{})
|
||||
if err != nil {
|
||||
if !tc.wantErr {
|
||||
t.Errorf("MatchExpression.Provision() error = %v, wantErr %v", err, tc.wantErr)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
req := httptest.NewRequest(tc.httpMethod, tc.urlTarget, nil)
|
||||
if tc.httpHeader != nil {
|
||||
req.Header = *tc.httpHeader
|
||||
}
|
||||
repl := caddy.NewReplacer()
|
||||
ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
|
||||
req = req.WithContext(ctx)
|
||||
addHTTPVarsToReplacer(repl, req, httptest.NewRecorder())
|
||||
|
||||
if tc.clientCertificate != nil {
|
||||
block, _ := pem.Decode(clientCert)
|
||||
if block == nil {
|
||||
t.Fatalf("failed to decode PEM certificate")
|
||||
}
|
||||
|
||||
cert, err := x509.ParseCertificate(block.Bytes)
|
||||
if err != nil {
|
||||
t.Fatalf("failed to decode PEM certificate: %v", err)
|
||||
}
|
||||
|
||||
req.TLS = &tls.ConnectionState{
|
||||
PeerCertificates: []*x509.Certificate{cert},
|
||||
}
|
||||
}
|
||||
|
||||
if tc.expression.Match(req) != tc.wantResult {
|
||||
t.Errorf("MatchExpression.Match() expected to return '%t', for expression : '%s'", tc.wantResult, tc.expression.Expr)
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
func BenchmarkMatchExpressionMatch(b *testing.B) {
|
||||
for _, tst := range matcherTests {
|
||||
tc := tst
|
||||
if tc.wantErr {
|
||||
continue
|
||||
}
|
||||
b.Run(tst.name, func(b *testing.B) {
|
||||
tc.expression.Provision(caddy.Context{})
|
||||
req := httptest.NewRequest(tc.httpMethod, tc.urlTarget, nil)
|
||||
if tc.httpHeader != nil {
|
||||
req.Header = *tc.httpHeader
|
||||
}
|
||||
repl := caddy.NewReplacer()
|
||||
ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
|
||||
req = req.WithContext(ctx)
|
||||
addHTTPVarsToReplacer(repl, req, httptest.NewRecorder())
|
||||
if tc.clientCertificate != nil {
|
||||
block, _ := pem.Decode(clientCert)
|
||||
if block == nil {
|
||||
b.Fatalf("failed to decode PEM certificate")
|
||||
}
|
||||
|
||||
cert, err := x509.ParseCertificate(block.Bytes)
|
||||
if err != nil {
|
||||
b.Fatalf("failed to decode PEM certificate: %v", err)
|
||||
}
|
||||
|
||||
req.TLS = &tls.ConnectionState{
|
||||
PeerCertificates: []*x509.Certificate{cert},
|
||||
}
|
||||
}
|
||||
b.ResetTimer()
|
||||
for i := 0; i < b.N; i++ {
|
||||
tc.expression.Match(req)
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
func TestMatchExpressionProvision(t *testing.T) {
|
||||
tests := []struct {
|
||||
name string
|
||||
|
|
@ -54,71 +504,3 @@ func TestMatchExpressionProvision(t *testing.T) {
|
|||
})
|
||||
}
|
||||
}
|
||||
|
||||
func TestMatchExpressionMatch(t *testing.T) {
|
||||
|
||||
clientCert := []byte(`-----BEGIN CERTIFICATE-----
|
||||
MIIB9jCCAV+gAwIBAgIBAjANBgkqhkiG9w0BAQsFADAYMRYwFAYDVQQDDA1DYWRk
|
||||
eSBUZXN0IENBMB4XDTE4MDcyNDIxMzUwNVoXDTI4MDcyMTIxMzUwNVowHTEbMBkG
|
||||
A1UEAwwSY2xpZW50LmxvY2FsZG9tYWluMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCB
|
||||
iQKBgQDFDEpzF0ew68teT3xDzcUxVFaTII+jXH1ftHXxxP4BEYBU4q90qzeKFneF
|
||||
z83I0nC0WAQ45ZwHfhLMYHFzHPdxr6+jkvKPASf0J2v2HDJuTM1bHBbik5Ls5eq+
|
||||
fVZDP8o/VHKSBKxNs8Goc2NTsr5b07QTIpkRStQK+RJALk4x9QIDAQABo0swSTAJ
|
||||
BgNVHRMEAjAAMAsGA1UdDwQEAwIHgDAaBgNVHREEEzARgglsb2NhbGhvc3SHBH8A
|
||||
AAEwEwYDVR0lBAwwCgYIKwYBBQUHAwIwDQYJKoZIhvcNAQELBQADgYEANSjz2Sk+
|
||||
eqp31wM9il1n+guTNyxJd+FzVAH+hCZE5K+tCgVDdVFUlDEHHbS/wqb2PSIoouLV
|
||||
3Q9fgDkiUod+uIK0IynzIKvw+Cjg+3nx6NQ0IM0zo8c7v398RzB4apbXKZyeeqUH
|
||||
9fNwfEi+OoXR6s+upSKobCmLGLGi9Na5s5g=
|
||||
-----END CERTIFICATE-----`)
|
||||
|
||||
tests := []struct {
|
||||
name string
|
||||
expression *MatchExpression
|
||||
wantErr bool
|
||||
wantResult bool
|
||||
clientCertificate []byte
|
||||
}{
|
||||
{
|
||||
name: "boolean matches succeed for placeholder http.request.tls.client.subject",
|
||||
expression: &MatchExpression{
|
||||
Expr: "{http.request.tls.client.subject} == 'CN=client.localdomain'",
|
||||
},
|
||||
clientCertificate: clientCert,
|
||||
wantResult: true,
|
||||
},
|
||||
}
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.name, func(t *testing.T) {
|
||||
if err := tt.expression.Provision(caddy.Context{}); (err != nil) != tt.wantErr {
|
||||
t.Errorf("MatchExpression.Provision() error = %v, wantErr %v", err, tt.wantErr)
|
||||
}
|
||||
|
||||
req := httptest.NewRequest("GET", "https://example.com/foo", nil)
|
||||
repl := caddy.NewReplacer()
|
||||
ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
|
||||
req = req.WithContext(ctx)
|
||||
addHTTPVarsToReplacer(repl, req, httptest.NewRecorder())
|
||||
|
||||
if tt.clientCertificate != nil {
|
||||
block, _ := pem.Decode(clientCert)
|
||||
if block == nil {
|
||||
t.Fatalf("failed to decode PEM certificate")
|
||||
}
|
||||
|
||||
cert, err := x509.ParseCertificate(block.Bytes)
|
||||
if err != nil {
|
||||
t.Fatalf("failed to decode PEM certificate: %v", err)
|
||||
}
|
||||
|
||||
req.TLS = &tls.ConnectionState{
|
||||
PeerCertificates: []*x509.Certificate{cert},
|
||||
}
|
||||
}
|
||||
|
||||
if tt.expression.Match(req) != tt.wantResult {
|
||||
t.Errorf("MatchExpression.Match() expected to return '%t', for expression : '%s'", tt.wantResult, tt.expression.Expr)
|
||||
}
|
||||
|
||||
})
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -26,6 +26,14 @@ import (
|
|||
"github.com/caddyserver/caddy/v2"
|
||||
"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
|
||||
"github.com/caddyserver/caddy/v2/modules/caddyhttp"
|
||||
"github.com/google/cel-go/cel"
|
||||
"github.com/google/cel-go/checker/decls"
|
||||
"github.com/google/cel-go/common"
|
||||
"github.com/google/cel-go/common/operators"
|
||||
"github.com/google/cel-go/common/types/ref"
|
||||
"github.com/google/cel-go/interpreter/functions"
|
||||
"github.com/google/cel-go/parser"
|
||||
exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
|
||||
)
|
||||
|
||||
func init() {
|
||||
|
|
@ -139,6 +147,110 @@ func (m *MatchFile) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
|
|||
return nil
|
||||
}
|
||||
|
||||
// CELLibrary produces options that expose this matcher for use in CEL
|
||||
// expression matchers.
|
||||
//
|
||||
// Example:
|
||||
// expression file({'root': '/srv', 'try_files': [{http.request.uri.path}, '/index.php'], 'try_policy': 'first_exist', 'split_path': ['.php']})
|
||||
func (MatchFile) CELLibrary(ctx caddy.Context) (cel.Library, error) {
|
||||
requestType := decls.NewObjectType("http.Request")
|
||||
envOptions := []cel.EnvOption{
|
||||
cel.Macros(parser.NewGlobalVarArgMacro("file", celFileMatcherMacroExpander())),
|
||||
cel.Declarations(
|
||||
decls.NewFunction("file",
|
||||
decls.NewOverload("file_request_map",
|
||||
[]*exprpb.Type{requestType, caddyhttp.CelTypeJson},
|
||||
decls.Bool,
|
||||
),
|
||||
),
|
||||
),
|
||||
}
|
||||
|
||||
matcherFactory := func(data ref.Val) (caddyhttp.RequestMatcher, error) {
|
||||
values, err := caddyhttp.CELValueToMapStrList(data)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
var root string
|
||||
if len(values["root"]) > 0 {
|
||||
root = values["root"][0]
|
||||
}
|
||||
|
||||
var try_policy string
|
||||
if len(values["try_policy"]) > 0 {
|
||||
root = values["try_policy"][0]
|
||||
}
|
||||
|
||||
m := MatchFile{
|
||||
Root: root,
|
||||
TryFiles: values["try_files"],
|
||||
TryPolicy: try_policy,
|
||||
SplitPath: values["split_path"],
|
||||
}
|
||||
|
||||
err = m.Provision(ctx)
|
||||
return m, err
|
||||
}
|
||||
|
||||
programOptions := []cel.ProgramOption{
|
||||
cel.CustomDecorator(caddyhttp.CELMatcherDecorator("file_request_map", matcherFactory)),
|
||||
cel.Functions(
|
||||
&functions.Overload{
|
||||
Operator: "file_request_map",
|
||||
Binary: caddyhttp.CELMatcherRuntimeFunction("file_request_map", matcherFactory),
|
||||
},
|
||||
),
|
||||
}
|
||||
|
||||
return caddyhttp.NewMatcherCELLibrary(envOptions, programOptions), nil
|
||||
}
|
||||
|
||||
func celFileMatcherMacroExpander() parser.MacroExpander {
|
||||
return func(eh parser.ExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {
|
||||
if len(args) == 0 {
|
||||
return nil, &common.Error{
|
||||
Message: "matcher requires at least one argument",
|
||||
}
|
||||
}
|
||||
if len(args) == 1 {
|
||||
arg := args[0]
|
||||
if isCELStringLiteral(arg) || isCELCaddyPlaceholderCall(arg) {
|
||||
return eh.GlobalCall("file",
|
||||
eh.Ident("request"),
|
||||
eh.NewMap(
|
||||
eh.NewMapEntry(eh.LiteralString("try_files"), eh.NewList(arg)),
|
||||
),
|
||||
), nil
|
||||
}
|
||||
if isCELTryFilesLiteral(arg) {
|
||||
return eh.GlobalCall("file", eh.Ident("request"), arg), nil
|
||||
}
|
||||
return nil, &common.Error{
|
||||
Location: eh.OffsetLocation(arg.GetId()),
|
||||
Message: "matcher requires either a map or string literal argument",
|
||||
}
|
||||
}
|
||||
|
||||
for _, arg := range args {
|
||||
if !(isCELStringLiteral(arg) || isCELCaddyPlaceholderCall(arg)) {
|
||||
return nil, &common.Error{
|
||||
Location: eh.OffsetLocation(arg.GetId()),
|
||||
Message: "matcher only supports repeated string literal arguments",
|
||||
}
|
||||
}
|
||||
}
|
||||
return eh.GlobalCall("file",
|
||||
eh.Ident("request"),
|
||||
eh.NewMap(
|
||||
eh.NewMapEntry(
|
||||
eh.LiteralString("try_files"), eh.NewList(args...),
|
||||
),
|
||||
),
|
||||
), nil
|
||||
}
|
||||
}
|
||||
|
||||
// Provision sets up m's defaults.
|
||||
func (m *MatchFile) Provision(_ caddy.Context) error {
|
||||
if m.Root == "" {
|
||||
|
|
@ -359,6 +471,107 @@ func indexFold(haystack, needle string) int {
|
|||
return -1
|
||||
}
|
||||
|
||||
// isCELMapLiteral returns whether the expression resolves to a map literal containing
|
||||
// only string keys with or a placeholder call.
|
||||
func isCELTryFilesLiteral(e *exprpb.Expr) bool {
|
||||
switch e.GetExprKind().(type) {
|
||||
case *exprpb.Expr_StructExpr:
|
||||
structExpr := e.GetStructExpr()
|
||||
if structExpr.GetMessageName() != "" {
|
||||
return false
|
||||
}
|
||||
for _, entry := range structExpr.GetEntries() {
|
||||
mapKey := entry.GetMapKey()
|
||||
mapVal := entry.GetValue()
|
||||
if !isCELStringLiteral(mapKey) {
|
||||
return false
|
||||
}
|
||||
mapKeyStr := mapKey.GetConstExpr().GetStringValue()
|
||||
if mapKeyStr == "try_files" || mapKeyStr == "split_path" {
|
||||
if !isCELStringListLiteral(mapVal) {
|
||||
return false
|
||||
}
|
||||
} else if mapKeyStr == "try_policy" || mapKeyStr == "root" {
|
||||
if !(isCELStringExpr(mapVal)) {
|
||||
return false
|
||||
}
|
||||
} else {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// isCELStringExpr indicates whether the expression is a supported string expression
|
||||
func isCELStringExpr(e *exprpb.Expr) bool {
|
||||
return isCELStringLiteral(e) || isCELCaddyPlaceholderCall(e) || isCELConcatCall(e)
|
||||
}
|
||||
|
||||
// isCELStringLiteral returns whether the expression is a CEL string literal.
|
||||
func isCELStringLiteral(e *exprpb.Expr) bool {
|
||||
switch e.GetExprKind().(type) {
|
||||
case *exprpb.Expr_ConstExpr:
|
||||
constant := e.GetConstExpr()
|
||||
switch constant.GetConstantKind().(type) {
|
||||
case *exprpb.Constant_StringValue:
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// isCELCaddyPlaceholderCall returns whether the expression is a caddy placeholder call.
|
||||
func isCELCaddyPlaceholderCall(e *exprpb.Expr) bool {
|
||||
switch e.GetExprKind().(type) {
|
||||
case *exprpb.Expr_CallExpr:
|
||||
call := e.GetCallExpr()
|
||||
if call.GetFunction() == "caddyPlaceholder" {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// isCELConcatCall tests whether the expression is a concat function (+) with string, placeholder, or
|
||||
// other concat call arguments.
|
||||
func isCELConcatCall(e *exprpb.Expr) bool {
|
||||
switch e.GetExprKind().(type) {
|
||||
case *exprpb.Expr_CallExpr:
|
||||
call := e.GetCallExpr()
|
||||
if call.GetTarget() != nil {
|
||||
return false
|
||||
}
|
||||
if call.GetFunction() != operators.Add {
|
||||
return false
|
||||
}
|
||||
for _, arg := range call.GetArgs() {
|
||||
if !isCELStringExpr(arg) {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// isCELStringListLiteral returns whether the expression resolves to a list literal
|
||||
// containing only string constants or a placeholder call.
|
||||
func isCELStringListLiteral(e *exprpb.Expr) bool {
|
||||
switch e.GetExprKind().(type) {
|
||||
case *exprpb.Expr_ListExpr:
|
||||
list := e.GetListExpr()
|
||||
for _, elem := range list.GetElements() {
|
||||
if !isCELStringExpr(elem) {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
const (
|
||||
tryPolicyFirstExist = "first_exist"
|
||||
tryPolicyLargestSize = "largest_size"
|
||||
|
|
@ -368,6 +581,7 @@ const (
|
|||
|
||||
// Interface guards
|
||||
var (
|
||||
_ caddy.Validator = (*MatchFile)(nil)
|
||||
_ caddyhttp.RequestMatcher = (*MatchFile)(nil)
|
||||
_ caddy.Validator = (*MatchFile)(nil)
|
||||
_ caddyhttp.RequestMatcher = (*MatchFile)(nil)
|
||||
_ caddyhttp.CELLibraryProducer = (*MatchFile)(nil)
|
||||
)
|
||||
|
|
|
|||
|
|
@ -15,12 +15,15 @@
|
|||
package fileserver
|
||||
|
||||
import (
|
||||
"context"
|
||||
"net/http"
|
||||
"net/http/httptest"
|
||||
"net/url"
|
||||
"os"
|
||||
"runtime"
|
||||
"testing"
|
||||
|
||||
"github.com/caddyserver/caddy/v2"
|
||||
"github.com/caddyserver/caddy/v2/modules/caddyhttp"
|
||||
)
|
||||
|
||||
|
|
@ -259,3 +262,109 @@ func TestFirstSplit(t *testing.T) {
|
|||
t.Errorf("Expected remainder %s but got %s", expectedRemainder, remainder)
|
||||
}
|
||||
}
|
||||
|
||||
var (
|
||||
expressionTests = []struct {
|
||||
name string
|
||||
expression *caddyhttp.MatchExpression
|
||||
urlTarget string
|
||||
httpMethod string
|
||||
httpHeader *http.Header
|
||||
wantErr bool
|
||||
wantResult bool
|
||||
clientCertificate []byte
|
||||
}{
|
||||
{
|
||||
name: "file error no args (MatchFile)",
|
||||
expression: &caddyhttp.MatchExpression{
|
||||
Expr: `file()`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo",
|
||||
wantErr: true,
|
||||
},
|
||||
{
|
||||
name: "file error bad try files (MatchFile)",
|
||||
expression: &caddyhttp.MatchExpression{
|
||||
Expr: `file({"try_file": ["bad_arg"]})`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo",
|
||||
wantErr: true,
|
||||
},
|
||||
{
|
||||
name: "file match short pattern index.php (MatchFile)",
|
||||
expression: &caddyhttp.MatchExpression{
|
||||
Expr: `file("index.php")`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo",
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "file match short pattern foo.txt (MatchFile)",
|
||||
expression: &caddyhttp.MatchExpression{
|
||||
Expr: `file({http.request.uri.path})`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo.txt",
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "file match index.php (MatchFile)",
|
||||
expression: &caddyhttp.MatchExpression{
|
||||
Expr: `file({"root": "./testdata", "try_files": [{http.request.uri.path}, "/index.php"]})`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo",
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "file match long pattern foo.txt (MatchFile)",
|
||||
expression: &caddyhttp.MatchExpression{
|
||||
Expr: `file({"root": "./testdata", "try_files": [{http.request.uri.path}]})`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo.txt",
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "file match long pattern foo.txt with concatenation (MatchFile)",
|
||||
expression: &caddyhttp.MatchExpression{
|
||||
Expr: `file({"root": ".", "try_files": ["./testdata" + {http.request.uri.path}]})`,
|
||||
},
|
||||
urlTarget: "https://example.com/foo.txt",
|
||||
wantResult: true,
|
||||
},
|
||||
{
|
||||
name: "file not match long pattern (MatchFile)",
|
||||
expression: &caddyhttp.MatchExpression{
|
||||
Expr: `file({"root": "./testdata", "try_files": [{http.request.uri.path}]})`,
|
||||
},
|
||||
urlTarget: "https://example.com/nopenope.txt",
|
||||
wantResult: false,
|
||||
},
|
||||
}
|
||||
)
|
||||
|
||||
func TestMatchExpressionMatch(t *testing.T) {
|
||||
for _, tst := range expressionTests {
|
||||
tc := tst
|
||||
t.Run(tc.name, func(t *testing.T) {
|
||||
err := tc.expression.Provision(caddy.Context{})
|
||||
if err != nil {
|
||||
if !tc.wantErr {
|
||||
t.Errorf("MatchExpression.Provision() error = %v, wantErr %v", err, tc.wantErr)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
req := httptest.NewRequest(tc.httpMethod, tc.urlTarget, nil)
|
||||
if tc.httpHeader != nil {
|
||||
req.Header = *tc.httpHeader
|
||||
}
|
||||
repl := caddyhttp.NewTestReplacer(req)
|
||||
repl.Set("http.vars.root", "./testdata")
|
||||
ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
|
||||
req = req.WithContext(ctx)
|
||||
|
||||
if tc.expression.Match(req) != tc.wantResult {
|
||||
t.Errorf("MatchExpression.Match() expected to return '%t', for expression : '%s'", tc.wantResult, tc.expression.Expr)
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -16,6 +16,7 @@ package caddyhttp
|
|||
|
||||
import (
|
||||
"encoding/json"
|
||||
"errors"
|
||||
"fmt"
|
||||
"net"
|
||||
"net/http"
|
||||
|
|
@ -23,6 +24,7 @@ import (
|
|||
"net/url"
|
||||
"path"
|
||||
"path/filepath"
|
||||
"reflect"
|
||||
"regexp"
|
||||
"sort"
|
||||
"strconv"
|
||||
|
|
@ -30,7 +32,12 @@ import (
|
|||
|
||||
"github.com/caddyserver/caddy/v2"
|
||||
"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
|
||||
"github.com/google/cel-go/cel"
|
||||
"github.com/google/cel-go/checker/decls"
|
||||
"github.com/google/cel-go/common/types"
|
||||
"github.com/google/cel-go/common/types/ref"
|
||||
"go.uber.org/zap"
|
||||
exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
|
||||
)
|
||||
|
||||
type (
|
||||
|
|
@ -291,6 +298,29 @@ outer:
|
|||
return false
|
||||
}
|
||||
|
||||
// CELLibrary produces options that expose this matcher for use in CEL
|
||||
// expression matchers.
|
||||
//
|
||||
// Example:
|
||||
// expression host('localhost')
|
||||
func (MatchHost) CELLibrary(ctx caddy.Context) (cel.Library, error) {
|
||||
return CELMatcherImpl(
|
||||
"host",
|
||||
"host_match_request_list",
|
||||
[]*exprpb.Type{CelTypeListString},
|
||||
func(data ref.Val) (RequestMatcher, error) {
|
||||
refStringList := reflect.TypeOf([]string{})
|
||||
strList, err := data.ConvertToNative(refStringList)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
matcher := MatchHost(strList.([]string))
|
||||
err = matcher.Provision(ctx)
|
||||
return matcher, err
|
||||
},
|
||||
)
|
||||
}
|
||||
|
||||
// fuzzy returns true if the given hostname h is not a specific
|
||||
// hostname, e.g. has placeholders or wildcards.
|
||||
func (MatchHost) fuzzy(h string) bool { return strings.ContainsAny(h, "{*") }
|
||||
|
|
@ -396,6 +426,33 @@ func (m MatchPath) Match(r *http.Request) bool {
|
|||
return false
|
||||
}
|
||||
|
||||
// CELLibrary produces options that expose this matcher for use in CEL
|
||||
// expression matchers.
|
||||
//
|
||||
// Example:
|
||||
// expression path('*substring*', '*suffix')
|
||||
func (MatchPath) CELLibrary(ctx caddy.Context) (cel.Library, error) {
|
||||
return CELMatcherImpl(
|
||||
// name of the macro, this is the function name that users see when writing expressions.
|
||||
"path",
|
||||
// name of the function that the macro will be rewritten to call.
|
||||
"path_match_request_list",
|
||||
// internal data type of the MatchPath value.
|
||||
[]*exprpb.Type{CelTypeListString},
|
||||
// function to convert a constant list of strings to a MatchPath instance.
|
||||
func(data ref.Val) (RequestMatcher, error) {
|
||||
refStringList := reflect.TypeOf([]string{})
|
||||
strList, err := data.ConvertToNative(refStringList)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
matcher := MatchPath(strList.([]string))
|
||||
err = matcher.Provision(ctx)
|
||||
return matcher, err
|
||||
},
|
||||
)
|
||||
}
|
||||
|
||||
// UnmarshalCaddyfile implements caddyfile.Unmarshaler.
|
||||
func (m *MatchPath) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
|
||||
for d.Next() {
|
||||
|
|
@ -440,6 +497,50 @@ func (m MatchPathRE) Match(r *http.Request) bool {
|
|||
return m.MatchRegexp.Match(cleanedPath, repl)
|
||||
}
|
||||
|
||||
// CELLibrary produces options that expose this matcher for use in CEL
|
||||
// expression matchers.
|
||||
//
|
||||
// Example:
|
||||
// expression path_regexp('^/bar')
|
||||
func (MatchPathRE) CELLibrary(ctx caddy.Context) (cel.Library, error) {
|
||||
unnamedPattern, err := CELMatcherImpl(
|
||||
"path_regexp",
|
||||
"path_regexp_request_string",
|
||||
[]*exprpb.Type{decls.String},
|
||||
func(data ref.Val) (RequestMatcher, error) {
|
||||
pattern := data.(types.String)
|
||||
matcher := MatchPathRE{MatchRegexp{Pattern: string(pattern)}}
|
||||
err := matcher.Provision(ctx)
|
||||
return matcher, err
|
||||
},
|
||||
)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
namedPattern, err := CELMatcherImpl(
|
||||
"path_regexp",
|
||||
"path_regexp_request_string_string",
|
||||
[]*exprpb.Type{decls.String, decls.String},
|
||||
func(data ref.Val) (RequestMatcher, error) {
|
||||
refStringList := reflect.TypeOf([]string{})
|
||||
params, err := data.ConvertToNative(refStringList)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
strParams := params.([]string)
|
||||
matcher := MatchPathRE{MatchRegexp{Name: strParams[0], Pattern: strParams[1]}}
|
||||
err = matcher.Provision(ctx)
|
||||
return matcher, err
|
||||
},
|
||||
)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
envOpts := append(unnamedPattern.CompileOptions(), namedPattern.CompileOptions()...)
|
||||
prgOpts := append(unnamedPattern.ProgramOptions(), namedPattern.ProgramOptions()...)
|
||||
return NewMatcherCELLibrary(envOpts, prgOpts), nil
|
||||
}
|
||||
|
||||
// CaddyModule returns the Caddy module information.
|
||||
func (MatchMethod) CaddyModule() caddy.ModuleInfo {
|
||||
return caddy.ModuleInfo{
|
||||
|
|
@ -469,6 +570,27 @@ func (m MatchMethod) Match(r *http.Request) bool {
|
|||
return false
|
||||
}
|
||||
|
||||
// CELLibrary produces options that expose this matcher for use in CEL
|
||||
// expression matchers.
|
||||
//
|
||||
// Example:
|
||||
// expression method('PUT', 'POST')
|
||||
func (MatchMethod) CELLibrary(_ caddy.Context) (cel.Library, error) {
|
||||
return CELMatcherImpl(
|
||||
"method",
|
||||
"method_request_list",
|
||||
[]*exprpb.Type{CelTypeListString},
|
||||
func(data ref.Val) (RequestMatcher, error) {
|
||||
refStringList := reflect.TypeOf([]string{})
|
||||
strList, err := data.ConvertToNative(refStringList)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return MatchMethod(strList.([]string)), nil
|
||||
},
|
||||
)
|
||||
}
|
||||
|
||||
// CaddyModule returns the Caddy module information.
|
||||
func (MatchQuery) CaddyModule() caddy.ModuleInfo {
|
||||
return caddy.ModuleInfo{
|
||||
|
|
@ -518,6 +640,26 @@ func (m MatchQuery) Match(r *http.Request) bool {
|
|||
return len(m) == 0 && len(r.URL.Query()) == 0
|
||||
}
|
||||
|
||||
// CELLibrary produces options that expose this matcher for use in CEL
|
||||
// expression matchers.
|
||||
//
|
||||
// Example:
|
||||
// expression query({'sort': 'asc'}) || query({'foo': ['*bar*', 'baz']})
|
||||
func (MatchQuery) CELLibrary(_ caddy.Context) (cel.Library, error) {
|
||||
return CELMatcherImpl(
|
||||
"query",
|
||||
"query_matcher_request_map",
|
||||
[]*exprpb.Type{CelTypeJson},
|
||||
func(data ref.Val) (RequestMatcher, error) {
|
||||
mapStrListStr, err := CELValueToMapStrList(data)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return MatchQuery(url.Values(mapStrListStr)), nil
|
||||
},
|
||||
)
|
||||
}
|
||||
|
||||
// CaddyModule returns the Caddy module information.
|
||||
func (MatchHeader) CaddyModule() caddy.ModuleInfo {
|
||||
return caddy.ModuleInfo{
|
||||
|
|
@ -573,6 +715,27 @@ func (m MatchHeader) Match(r *http.Request) bool {
|
|||
return matchHeaders(r.Header, http.Header(m), r.Host, repl)
|
||||
}
|
||||
|
||||
// CELLibrary produces options that expose this matcher for use in CEL
|
||||
// expression matchers.
|
||||
//
|
||||
// Example:
|
||||
// expression header({'content-type': 'image/png'})
|
||||
// expression header({'foo': ['bar', 'baz']}) // match bar or baz
|
||||
func (MatchHeader) CELLibrary(_ caddy.Context) (cel.Library, error) {
|
||||
return CELMatcherImpl(
|
||||
"header",
|
||||
"header_matcher_request_map",
|
||||
[]*exprpb.Type{CelTypeJson},
|
||||
func(data ref.Val) (RequestMatcher, error) {
|
||||
mapStrListStr, err := CELValueToMapStrList(data)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return MatchHeader(http.Header(mapStrListStr)), nil
|
||||
},
|
||||
)
|
||||
}
|
||||
|
||||
// getHeaderFieldVals returns the field values for the given fieldName from input.
|
||||
// The host parameter should be obtained from the http.Request.Host field since
|
||||
// net/http removes it from the header map.
|
||||
|
|
@ -710,6 +873,57 @@ func (m MatchHeaderRE) Validate() error {
|
|||
return nil
|
||||
}
|
||||
|
||||
// CELLibrary produces options that expose this matcher for use in CEL
|
||||
// expression matchers.
|
||||
//
|
||||
// Example:
|
||||
// expression header_regexp('foo', 'Field', 'fo+')
|
||||
func (MatchHeaderRE) CELLibrary(ctx caddy.Context) (cel.Library, error) {
|
||||
unnamedPattern, err := CELMatcherImpl(
|
||||
"header_regexp",
|
||||
"header_regexp_request_string_string",
|
||||
[]*exprpb.Type{decls.String, decls.String},
|
||||
func(data ref.Val) (RequestMatcher, error) {
|
||||
refStringList := reflect.TypeOf([]string{})
|
||||
params, err := data.ConvertToNative(refStringList)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
strParams := params.([]string)
|
||||
matcher := MatchHeaderRE{}
|
||||
matcher[strParams[0]] = &MatchRegexp{Pattern: strParams[1], Name: ""}
|
||||
err = matcher.Provision(ctx)
|
||||
return matcher, err
|
||||
},
|
||||
)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
namedPattern, err := CELMatcherImpl(
|
||||
"header_regexp",
|
||||
"header_regexp_request_string_string_string",
|
||||
[]*exprpb.Type{decls.String, decls.String, decls.String},
|
||||
func(data ref.Val) (RequestMatcher, error) {
|
||||
refStringList := reflect.TypeOf([]string{})
|
||||
params, err := data.ConvertToNative(refStringList)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
strParams := params.([]string)
|
||||
matcher := MatchHeaderRE{}
|
||||
matcher[strParams[1]] = &MatchRegexp{Pattern: strParams[2], Name: strParams[0]}
|
||||
err = matcher.Provision(ctx)
|
||||
return matcher, err
|
||||
},
|
||||
)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
envOpts := append(unnamedPattern.CompileOptions(), namedPattern.CompileOptions()...)
|
||||
prgOpts := append(unnamedPattern.ProgramOptions(), namedPattern.ProgramOptions()...)
|
||||
return NewMatcherCELLibrary(envOpts, prgOpts), nil
|
||||
}
|
||||
|
||||
// CaddyModule returns the Caddy module information.
|
||||
func (MatchProtocol) CaddyModule() caddy.ModuleInfo {
|
||||
return caddy.ModuleInfo{
|
||||
|
|
@ -743,6 +957,26 @@ func (m *MatchProtocol) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
|
|||
return nil
|
||||
}
|
||||
|
||||
// CELLibrary produces options that expose this matcher for use in CEL
|
||||
// expression matchers.
|
||||
//
|
||||
// Example:
|
||||
// expression protocol('https')
|
||||
func (MatchProtocol) CELLibrary(_ caddy.Context) (cel.Library, error) {
|
||||
return CELMatcherImpl(
|
||||
"protocol",
|
||||
"protocol_request_string",
|
||||
[]*exprpb.Type{decls.String},
|
||||
func(data ref.Val) (RequestMatcher, error) {
|
||||
protocolStr, ok := data.(types.String)
|
||||
if !ok {
|
||||
return nil, errors.New("protocol argument was not a string")
|
||||
}
|
||||
return MatchProtocol(strings.ToLower(string(protocolStr))), nil
|
||||
},
|
||||
)
|
||||
}
|
||||
|
||||
// CaddyModule returns the Caddy module information.
|
||||
func (MatchNot) CaddyModule() caddy.ModuleInfo {
|
||||
return caddy.ModuleInfo{
|
||||
|
|
@ -887,6 +1121,46 @@ func (m *MatchRemoteIP) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
|
|||
return nil
|
||||
}
|
||||
|
||||
// CELLibrary produces options that expose this matcher for use in CEL
|
||||
// expression matchers.
|
||||
//
|
||||
// Example:
|
||||
// expression remote_ip('forwarded', '192.168.0.0/16', '172.16.0.0/12', '10.0.0.0/8')
|
||||
func (MatchRemoteIP) CELLibrary(ctx caddy.Context) (cel.Library, error) {
|
||||
return CELMatcherImpl(
|
||||
// name of the macro, this is the function name that users see when writing expressions.
|
||||
"remote_ip",
|
||||
// name of the function that the macro will be rewritten to call.
|
||||
"remote_ip_match_request_list",
|
||||
// internal data type of the MatchPath value.
|
||||
[]*exprpb.Type{CelTypeListString},
|
||||
// function to convert a constant list of strings to a MatchPath instance.
|
||||
func(data ref.Val) (RequestMatcher, error) {
|
||||
refStringList := reflect.TypeOf([]string{})
|
||||
strList, err := data.ConvertToNative(refStringList)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
m := MatchRemoteIP{}
|
||||
|
||||
for _, input := range strList.([]string) {
|
||||
if input == "forwarded" {
|
||||
if len(m.Ranges) > 0 {
|
||||
return nil, errors.New("if used, 'forwarded' must be first argument")
|
||||
}
|
||||
m.Forwarded = true
|
||||
continue
|
||||
}
|
||||
m.Ranges = append(m.Ranges, input)
|
||||
}
|
||||
|
||||
err = m.Provision(ctx)
|
||||
return m, err
|
||||
},
|
||||
)
|
||||
}
|
||||
|
||||
// Provision parses m's IP ranges, either from IP or CIDR expressions.
|
||||
func (m *MatchRemoteIP) Provision(ctx caddy.Context) error {
|
||||
m.logger = ctx.Logger(m)
|
||||
|
|
@ -1062,7 +1336,9 @@ func (mre *MatchRegexp) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
|
|||
return nil
|
||||
}
|
||||
|
||||
var wordRE = regexp.MustCompile(`\w+`)
|
||||
var (
|
||||
wordRE = regexp.MustCompile(`\w+`)
|
||||
)
|
||||
|
||||
const regexpPlaceholderPrefix = "http.regexp"
|
||||
|
||||
|
|
@ -1103,6 +1379,18 @@ var (
|
|||
_ caddyfile.Unmarshaler = (*VarsMatcher)(nil)
|
||||
_ caddyfile.Unmarshaler = (*MatchVarsRE)(nil)
|
||||
|
||||
_ CELLibraryProducer = (*MatchHost)(nil)
|
||||
_ CELLibraryProducer = (*MatchPath)(nil)
|
||||
_ CELLibraryProducer = (*MatchPathRE)(nil)
|
||||
_ CELLibraryProducer = (*MatchMethod)(nil)
|
||||
_ CELLibraryProducer = (*MatchQuery)(nil)
|
||||
_ CELLibraryProducer = (*MatchHeader)(nil)
|
||||
_ CELLibraryProducer = (*MatchHeaderRE)(nil)
|
||||
_ CELLibraryProducer = (*MatchProtocol)(nil)
|
||||
_ CELLibraryProducer = (*MatchRemoteIP)(nil)
|
||||
// _ CELLibraryProducer = (*VarsMatcher)(nil)
|
||||
// _ CELLibraryProducer = (*MatchVarsRE)(nil)
|
||||
|
||||
_ json.Marshaler = (*MatchNot)(nil)
|
||||
_ json.Unmarshaler = (*MatchNot)(nil)
|
||||
)
|
||||
|
|
|
|||
Loading…
Reference in a new issue