pretecno/crowdsec-bouncer-traefik-plugin
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Max Lerebourg
2022-10-19 08:21:01 +02:00
parent 44e329cd57
commit a197194591
20 changed files with 315 additions and 4189 deletions
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bouncer.go
-1
View File
@@ -12,7 +12,6 @@ import (
"text/template" "text/template"
"time" "time"
"github.com/gomodule/redigo/redis"
cache "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/cache" cache "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/cache"
ip "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/ip" ip "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/ip"
logger "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/logger" logger "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/logger"
exemples/redis-cache/docker-compose.redis.yml
+2
View File
@@ -45,6 +45,7 @@ services:
# crowdseclapikey must be uniq to the middleware attached to the service # crowdseclapikey must be uniq to the middleware attached to the service
- "traefik.http.middlewares.crowdsec1.plugin.bouncer.crowdseclapikey=40796d93c2958f9e58345514e67740e5" - "traefik.http.middlewares.crowdsec1.plugin.bouncer.crowdseclapikey=40796d93c2958f9e58345514e67740e5"
- "traefik.http.middlewares.crowdsec1.plugin.bouncer.crowdsecmode=live" - "traefik.http.middlewares.crowdsec1.plugin.bouncer.crowdsecmode=live"
- "traefik.http.middlewares.crowdsec1.plugin.bouncer.rediscacheenabled=true"
networks: networks:
- services - services
@@ -64,6 +65,7 @@ services:
# crowdseclapikey must be uniq to the middleware attached to the service # crowdseclapikey must be uniq to the middleware attached to the service
- "traefik.http.middlewares.crowdsec2.plugin.bouncer.crowdseclapikey=44c36dac5c4140af9f06f397508e82c7" - "traefik.http.middlewares.crowdsec2.plugin.bouncer.crowdseclapikey=44c36dac5c4140af9f06f397508e82c7"
- "traefik.http.middlewares.crowdsec2.plugin.bouncer.crowdsecmode=live" - "traefik.http.middlewares.crowdsec2.plugin.bouncer.crowdsecmode=live"
- "traefik.http.middlewares.crowdsec2.plugin.bouncer.rediscacheenabled=true"
networks: networks:
- services - services
go.mod
+17 -2
View File
@@ -2,7 +2,22 @@ module github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin
go 1.17 go 1.17
require github.com/leprosus/golang-ttl-map v1.1.7
require ( require (
github.com/gomodule/redigo v1.8.9 github.com/beorn7/perks v1.0.1 // indirect
github.com/leprosus/golang-ttl-map v1.1.7 github.com/cespare/xxhash/v2 v2.1.2 // indirect
github.com/coreos/go-semver v0.3.0 // indirect
github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
github.com/go-redis/redis/v8 v8.11.5 // indirect
github.com/golang/protobuf v1.5.0 // indirect
github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
github.com/prometheus/client_golang v1.11.0 // indirect
github.com/prometheus/client_model v0.2.0 // indirect
github.com/prometheus/common v0.26.0 // indirect
github.com/prometheus/procfs v0.6.0 // indirect
github.com/sandwich-go/redisson v1.1.16 // indirect
github.com/sandwich-go/rueidis v0.1.11 // indirect
golang.org/x/sys v0.0.0-20220731174439-a90be440212d // indirect
google.golang.org/protobuf v1.27.1 // indirect
) )
go.sum
+148
View File
@@ -1,14 +1,162 @@
cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE=
github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/coreos/go-semver v0.3.0 h1:wkHLiw0WNATZnSG7epLsujiMCgPAc9xhjJ4tgnAxmfM=
github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8= github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78=
github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc=
github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
github.com/go-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vbaY=
github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
github.com/go-redis/redis/v8 v8.11.5 h1:AcZZR7igkdvfVmQTPnu9WE37LRrO/YrBH5zWyjDC0oI=
github.com/go-redis/redis/v8 v8.11.5/go.mod h1:gREzHqY1hg6oD9ngVRbLStwAWKhA0FEgq8Jd4h5lpwo=
github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:WU3c8KckQ9AFe+yFwt9sWVRKCVIyN9cPHBJSNnbL67w=
github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
github.com/golang/protobuf v1.4.3/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
github.com/golang/protobuf v1.5.0 h1:LUVKkCeviFUMKqHa4tXIIij/lbhnMbP7Fn5wKdKkRh4=
github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
github.com/gomodule/redigo v1.8.9 h1:Sl3u+2BI/kk+VEatbj0scLdrFhjPmbxOc1myhDP41ws= github.com/gomodule/redigo v1.8.9 h1:Sl3u+2BI/kk+VEatbj0scLdrFhjPmbxOc1myhDP41ws=
github.com/gomodule/redigo v1.8.9/go.mod h1:7ArFNvsTjH8GMMzB4uy1snslv2BwmginuMs06a1uzZE= github.com/gomodule/redigo v1.8.9/go.mod h1:7ArFNvsTjH8GMMzB4uy1snslv2BwmginuMs06a1uzZE=
github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
github.com/jpillora/backoff v1.0.0/go.mod h1:J/6gKK9jxlEcS3zixgDgUAsiuZ7yrSoa/FX5e0EB2j4=
github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
github.com/json-iterator/go v1.1.11/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM=
github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
github.com/konsorten/go-windows-terminal-sequences v1.0.3/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
github.com/leprosus/golang-ttl-map v1.1.7 h1:cF4AAFDDnJTFSV+/42sKLhmMluvLdRlCGS2UaifH6UM= github.com/leprosus/golang-ttl-map v1.1.7 h1:cF4AAFDDnJTFSV+/42sKLhmMluvLdRlCGS2UaifH6UM=
github.com/leprosus/golang-ttl-map v1.1.7/go.mod h1:4QWHJPeVBbrkhOhXdhCv9IEiyj/YzkO04/iexy4vSe0= github.com/leprosus/golang-ttl-map v1.1.7/go.mod h1:4QWHJPeVBbrkhOhXdhCv9IEiyj/YzkO04/iexy4vSe0=
github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=
github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
github.com/prometheus/client_golang v1.0.0/go.mod h1:db9x61etRT2tGnBNRi70OPL5FsnadC4Ky3P0J6CfImo=
github.com/prometheus/client_golang v1.7.1/go.mod h1:PY5Wy2awLA44sXw4AOSfFBetzPP4j5+D6mVACh+pe2M=
github.com/prometheus/client_golang v1.11.0 h1:HNkLOAEQMIDv/K+04rukrLx6ch7msSRwf3/SASFAGtQ=
github.com/prometheus/client_golang v1.11.0/go.mod h1:Z6t4BnS23TR94PD6BsDNk8yVqroYurpAkEiz0P2BEV0=
github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
github.com/prometheus/client_model v0.2.0 h1:uq5h0d+GuxiXLJLNABMgp2qUWDPiLvgCzz2dUR+/W/M=
github.com/prometheus/client_model v0.2.0/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
github.com/prometheus/common v0.4.1/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
github.com/prometheus/common v0.10.0/go.mod h1:Tlit/dnDKsSWFlCLTWaA1cyBgKHSMdTB80sz/V91rCo=
github.com/prometheus/common v0.26.0 h1:iMAkS2TDoNWnKM+Kopnx/8tnEStIfpYA0ur0xQzzhMQ=
github.com/prometheus/common v0.26.0/go.mod h1:M7rCNAaPfAosfx8veZJCuw84e35h3Cfd9VFqTh1DIvc=
github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
github.com/prometheus/procfs v0.1.3/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
github.com/prometheus/procfs v0.6.0 h1:mxy4L2jP6qMonqmq+aTtOx1ifVWUgG/TAmntgbh3xv4=
github.com/prometheus/procfs v0.6.0/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1xBZuNvfVA=
github.com/rueian/rueidis v0.0.80 h1:HfhTWc4gk7dMWd9vl7EVE4NkgMGjYFsyyhi6B6JV+b4=
github.com/rueian/rueidis v0.0.80/go.mod h1:LiKWMM/QnILwRfDZIhSIXi4vQqZ/UZy4+/aNkSCt8XA=
github.com/sandwich-go/redisson v1.1.16 h1:lAySrzPk8l6dermqEhsm+JUBoIcpARe09cgp/niMR1Y=
github.com/sandwich-go/redisson v1.1.16/go.mod h1:/gUQACQFRnzVXje9AyEicE8TKtrd9uJI74jMqAcOv3o=
github.com/sandwich-go/rueidis v0.1.11 h1:+lmTofyyzBb0dXLyuegE5NoAaXZxrVg+9QL5gEFnKYk=
github.com/sandwich-go/rueidis v0.1.11/go.mod h1:N894IGktaGEm5gMWxD7u6XSxkpSzxCStQEOKjqOJQ/k=
github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY= github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200106162015-b016eb3dc98e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210603081109-ebe580a85c40/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220731174439-a90be440212d h1:Sv5ogFZatcgIMMtBSTTAgMYsicp25MXBubjXNDKwm80=
golang.org/x/sys v0.0.0-20220731174439-a90be440212d/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
google.golang.org/protobuf v1.27.1 h1:SnqbnDw1V7RiZcXPx5MEeqPv2s79L9i7BJUlG/+RurQ=
google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo= gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
pkg/cache/cache.go
Vendored
+53 -52
View File
@@ -7,6 +7,7 @@ import (
ttl_map "github.com/leprosus/golang-ttl-map" ttl_map "github.com/leprosus/golang-ttl-map"
logger "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/logger" logger "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/logger"
redis "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/redis"
) )
const ( const (
@@ -17,17 +18,9 @@ const (
var ctx = context.Background() var ctx = context.Background()
var cache = ttl_map.New() var cache = ttl_map.New()
var redisEnabled = false var redisEnabled = false
// Get Decision check in the cache if the IP has the banned / not banned value.
// Otherwise return with an error to add the IP in cache if we are on.
func GetDecision(clientIP string) (bool, error) {
if redisEnabled {
return getDecisionRedisCache(clientIP)
} else {
return getDecisionLocalCache(clientIP)
}
}
func getDecisionLocalCache(clientIP string) (bool, error) { func getDecisionLocalCache(clientIP string) (bool, error) {
banned, isCached := cache.Get(clientIP) banned, isCached := cache.Get(clientIP)
@@ -38,8 +31,16 @@ func getDecisionLocalCache(clientIP string) (bool, error) {
return false, fmt.Errorf("no cache data") return false, fmt.Errorf("no cache data")
} }
func SetDecisionLocalCache(clientIP string, value string, duration int64) {
cache.Set(clientIP, value, duration)
}
func DeleteDecisionLocalCache(clientIP string) {
cache.Del(clientIP)
}
func getDecisionRedisCache(clientIP string) (bool, error) { func getDecisionRedisCache(clientIP string) (bool, error) {
// banned, err := rdb.Get(ctx, clientIP).Result() // banned, err := redis.Do(ctx, redis.B().Get().Key("key").Build()).ToString()
// if err != nil { // if err != nil {
// return false, fmt.Errorf("no cache data") // return false, fmt.Errorf("no cache data")
// } else { // } else {
@@ -48,6 +49,39 @@ func getDecisionRedisCache(clientIP string) (bool, error) {
return false, nil return false, nil
} }
func SetDecisionRedisCache(clientIP string, value string, duration int64) {
// ctx := context.Background()
// redis.Do(ctx, redis.B().Set().Key("key").Value("val").Nx().Build()).Error()
}
func DeleteDecisionRedisCache(clientIP string) {
// err := rdb.Del(ctx, clientIP).Err()
// if err != nil {
// logger.Info("Error, could not delete in redis cache IP")
// }
// errors are not handled
}
func DeleteDecision(clientIP string) {
if redisEnabled {
DeleteDecisionRedisCache(clientIP)
} else {
DeleteDecisionLocalCache(clientIP)
}
}
// Get Decision check in the cache if the IP has the banned / not banned value.
// Otherwise return with an error to add the IP in cache if we are on.
func GetDecision(clientIP string) (bool, error) {
if redisEnabled {
return getDecisionRedisCache(clientIP)
} else {
return getDecisionLocalCache(clientIP)
}
}
func SetDecision(clientIP string, isBanned bool, duration int64) { func SetDecision(clientIP string, isBanned bool, duration int64) {
var value string var value string
if isBanned { if isBanned {
@@ -63,48 +97,15 @@ func SetDecision(clientIP string, isBanned bool, duration int64) {
} }
} }
func SetDecisionRedisCache(clientIP string, value string, duration int64) { func InitRedisClient(host string, password string) error {
// err := rdb.Set(ctx, clientIP, value, time.Duration(duration)).Err() // redis, err := rueidis.NewClient(rueidis.ClientOption{
// InitAddress: []string{host},
// })
// if err != nil { // if err != nil {
// logger.Info("Error, could not insert in redis cache IP") // return fmt.Errorf("error instanciate redis: %w", err)
// } // }
// errors are not handled // redisEnabled = true
} writter, reader := redis.Init(host, password)
// writter.PrintfLine("[caca, true, caca]")
func SetDecisionLocalCache(clientIP string, value string, duration int64) { return nil
cache.Set(clientIP, value, duration)
}
func DeleteDecision(clientIP string) {
if redisEnabled {
DeleteDecisionRedisCache(clientIP)
} else {
DeleteDecisionLocalCache(clientIP)
}
}
func DeleteDecisionRedisCache(clientIP string) {
// err := rdb.Del(ctx, clientIP).Err()
// if err != nil {
// logger.Info("Error, could not delete in redis cache IP")
// }
// errors are not handled
}
func DeleteDecisionLocalCache(clientIP string) {
cache.Del(clientIP)
}
func InitRedisClient(addr string, port int, password string) {
// c, _ := redis.DialContext(ctx, "tcp", ":6379")
// defer c.Close()
// c, err := redis.DialURL(fmt.Sprintf("%v:%d", addr, port))
// if err != nil && c != nil{
// // handle error
// // c.Do("Set", "key", "value")
// logger.Debug("test")
// }
// TODO defer c.Close()
redisEnabled = true
} }
vendor/github.com/gomodule/redigo/LICENSE
Generated Vendored
-177
View File
@@ -1,177 +0,0 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
vendor/github.com/gomodule/redigo/redis/commandinfo.go
Generated Vendored
-55
View File
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// Copyright 2014 Gary Burd
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
package redis
import (
"strings"
)
const (
connectionWatchState = 1 << iota
connectionMultiState
connectionSubscribeState
connectionMonitorState
)
type commandInfo struct {
// Set or Clear these states on connection.
Set, Clear int
}
var commandInfos = map[string]commandInfo{
"WATCH": {Set: connectionWatchState},
"UNWATCH": {Clear: connectionWatchState},
"MULTI": {Set: connectionMultiState},
"EXEC": {Clear: connectionWatchState | connectionMultiState},
"DISCARD": {Clear: connectionWatchState | connectionMultiState},
"PSUBSCRIBE": {Set: connectionSubscribeState},
"SUBSCRIBE": {Set: connectionSubscribeState},
"MONITOR": {Set: connectionMonitorState},
}
func init() {
for n, ci := range commandInfos {
commandInfos[strings.ToLower(n)] = ci
}
}
func lookupCommandInfo(commandName string) commandInfo {
if ci, ok := commandInfos[commandName]; ok {
return ci
}
return commandInfos[strings.ToUpper(commandName)]
}
vendor/github.com/gomodule/redigo/redis/conn.go
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// Copyright 2012 Gary Burd
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
package redis
import (
"bufio"
"bytes"
"context"
"crypto/tls"
"errors"
"fmt"
"io"
"net"
"net/url"
"regexp"
"strconv"
"sync"
"time"
)
var (
_ ConnWithTimeout = (*conn)(nil)
)
// conn is the low-level implementation of Conn
type conn struct {
// Shared
mu sync.Mutex
pending int
err error
conn net.Conn
// Read
readTimeout time.Duration
br *bufio.Reader
// Write
writeTimeout time.Duration
bw *bufio.Writer
// Scratch space for formatting argument length.
// '*' or '$', length, "\r\n"
lenScratch [32]byte
// Scratch space for formatting integers and floats.
numScratch [40]byte
}
// DialTimeout acts like Dial but takes timeouts for establishing the
// connection to the server, writing a command and reading a reply.
//
// Deprecated: Use Dial with options instead.
func DialTimeout(network, address string, connectTimeout, readTimeout, writeTimeout time.Duration) (Conn, error) {
return Dial(network, address,
DialConnectTimeout(connectTimeout),
DialReadTimeout(readTimeout),
DialWriteTimeout(writeTimeout))
}
// DialOption specifies an option for dialing a Redis server.
type DialOption struct {
f func(*dialOptions)
}
type dialOptions struct {
readTimeout time.Duration
writeTimeout time.Duration
tlsHandshakeTimeout time.Duration
dialer *net.Dialer
dialContext func(ctx context.Context, network, addr string) (net.Conn, error)
db int
username string
password string
clientName string
useTLS bool
skipVerify bool
tlsConfig *tls.Config
}
// DialTLSHandshakeTimeout specifies the maximum amount of time waiting to
// wait for a TLS handshake. Zero means no timeout.
// If no DialTLSHandshakeTimeout option is specified then the default is 30 seconds.
func DialTLSHandshakeTimeout(d time.Duration) DialOption {
return DialOption{func(do *dialOptions) {
do.tlsHandshakeTimeout = d
}}
}
// DialReadTimeout specifies the timeout for reading a single command reply.
func DialReadTimeout(d time.Duration) DialOption {
return DialOption{func(do *dialOptions) {
do.readTimeout = d
}}
}
// DialWriteTimeout specifies the timeout for writing a single command.
func DialWriteTimeout(d time.Duration) DialOption {
return DialOption{func(do *dialOptions) {
do.writeTimeout = d
}}
}
// DialConnectTimeout specifies the timeout for connecting to the Redis server when
// no DialNetDial option is specified.
// If no DialConnectTimeout option is specified then the default is 30 seconds.
func DialConnectTimeout(d time.Duration) DialOption {
return DialOption{func(do *dialOptions) {
do.dialer.Timeout = d
}}
}
// DialKeepAlive specifies the keep-alive period for TCP connections to the Redis server
// when no DialNetDial option is specified.
// If zero, keep-alives are not enabled. If no DialKeepAlive option is specified then
// the default of 5 minutes is used to ensure that half-closed TCP sessions are detected.
func DialKeepAlive(d time.Duration) DialOption {
return DialOption{func(do *dialOptions) {
do.dialer.KeepAlive = d
}}
}
// DialNetDial specifies a custom dial function for creating TCP
// connections, otherwise a net.Dialer customized via the other options is used.
// DialNetDial overrides DialConnectTimeout and DialKeepAlive.
func DialNetDial(dial func(network, addr string) (net.Conn, error)) DialOption {
return DialOption{func(do *dialOptions) {
do.dialContext = func(ctx context.Context, network, addr string) (net.Conn, error) {
return dial(network, addr)
}
}}
}
// DialContextFunc specifies a custom dial function with context for creating TCP
// connections, otherwise a net.Dialer customized via the other options is used.
// DialContextFunc overrides DialConnectTimeout and DialKeepAlive.
func DialContextFunc(f func(ctx context.Context, network, addr string) (net.Conn, error)) DialOption {
return DialOption{func(do *dialOptions) {
do.dialContext = f
}}
}
// DialDatabase specifies the database to select when dialing a connection.
func DialDatabase(db int) DialOption {
return DialOption{func(do *dialOptions) {
do.db = db
}}
}
// DialPassword specifies the password to use when connecting to
// the Redis server.
func DialPassword(password string) DialOption {
return DialOption{func(do *dialOptions) {
do.password = password
}}
}
// DialUsername specifies the username to use when connecting to
// the Redis server when Redis ACLs are used.
// A DialPassword must also be passed otherwise this option will have no effect.
func DialUsername(username string) DialOption {
return DialOption{func(do *dialOptions) {
do.username = username
}}
}
// DialClientName specifies a client name to be used
// by the Redis server connection.
func DialClientName(name string) DialOption {
return DialOption{func(do *dialOptions) {
do.clientName = name
}}
}
// DialTLSConfig specifies the config to use when a TLS connection is dialed.
// Has no effect when not dialing a TLS connection.
func DialTLSConfig(c *tls.Config) DialOption {
return DialOption{func(do *dialOptions) {
do.tlsConfig = c
}}
}
// DialTLSSkipVerify disables server name verification when connecting over
// TLS. Has no effect when not dialing a TLS connection.
func DialTLSSkipVerify(skip bool) DialOption {
return DialOption{func(do *dialOptions) {
do.skipVerify = skip
}}
}
// DialUseTLS specifies whether TLS should be used when connecting to the
// server. This option is ignore by DialURL.
func DialUseTLS(useTLS bool) DialOption {
return DialOption{func(do *dialOptions) {
do.useTLS = useTLS
}}
}
// Dial connects to the Redis server at the given network and
// address using the specified options.
func Dial(network, address string, options ...DialOption) (Conn, error) {
return DialContext(context.Background(), network, address, options...)
}
type tlsHandshakeTimeoutError struct{}
func (tlsHandshakeTimeoutError) Timeout() bool { return true }
func (tlsHandshakeTimeoutError) Temporary() bool { return true }
func (tlsHandshakeTimeoutError) Error() string { return "TLS handshake timeout" }
// DialContext connects to the Redis server at the given network and
// address using the specified options and context.
func DialContext(ctx context.Context, network, address string, options ...DialOption) (Conn, error) {
do := dialOptions{
dialer: &net.Dialer{
Timeout: time.Second * 30,
KeepAlive: time.Minute * 5,
},
tlsHandshakeTimeout: time.Second * 10,
}
for _, option := range options {
option.f(&do)
}
if do.dialContext == nil {
do.dialContext = do.dialer.DialContext
}
netConn, err := do.dialContext(ctx, network, address)
if err != nil {
return nil, err
}
if do.useTLS {
var tlsConfig *tls.Config
if do.tlsConfig == nil {
tlsConfig = &tls.Config{InsecureSkipVerify: do.skipVerify}
} else {
tlsConfig = do.tlsConfig.Clone()
}
if tlsConfig.ServerName == "" {
host, _, err := net.SplitHostPort(address)
if err != nil {
netConn.Close()
return nil, err
}
tlsConfig.ServerName = host
}
tlsConn := tls.Client(netConn, tlsConfig)
errc := make(chan error, 2) // buffered so we don't block timeout or Handshake
if d := do.tlsHandshakeTimeout; d != 0 {
timer := time.AfterFunc(d, func() {
errc <- tlsHandshakeTimeoutError{}
})
defer timer.Stop()
}
go func() {
errc <- tlsConn.Handshake()
}()
if err := <-errc; err != nil {
// Timeout or Handshake error.
netConn.Close() // nolint: errcheck
return nil, err
}
netConn = tlsConn
}
c := &conn{
conn: netConn,
bw: bufio.NewWriter(netConn),
br: bufio.NewReader(netConn),
readTimeout: do.readTimeout,
writeTimeout: do.writeTimeout,
}
if do.password != "" {
authArgs := make([]interface{}, 0, 2)
if do.username != "" {
authArgs = append(authArgs, do.username)
}
authArgs = append(authArgs, do.password)
if _, err := c.DoContext(ctx, "AUTH", authArgs...); err != nil {
netConn.Close()
return nil, err
}
}
if do.clientName != "" {
if _, err := c.DoContext(ctx, "CLIENT", "SETNAME", do.clientName); err != nil {
netConn.Close()
return nil, err
}
}
if do.db != 0 {
if _, err := c.DoContext(ctx, "SELECT", do.db); err != nil {
netConn.Close()
return nil, err
}
}
return c, nil
}
var pathDBRegexp = regexp.MustCompile(`/(\d*)\z`)
// DialURL wraps DialURLContext using context.Background.
func DialURL(rawurl string, options ...DialOption) (Conn, error) {
ctx := context.Background()
return DialURLContext(ctx, rawurl, options...)
}
// DialURLContext connects to a Redis server at the given URL using the Redis
// URI scheme. URLs should follow the draft IANA specification for the
// scheme (https://www.iana.org/assignments/uri-schemes/prov/redis).
func DialURLContext(ctx context.Context, rawurl string, options ...DialOption) (Conn, error) {
u, err := url.Parse(rawurl)
if err != nil {
return nil, err
}
if u.Scheme != "redis" && u.Scheme != "rediss" {
return nil, fmt.Errorf("invalid redis URL scheme: %s", u.Scheme)
}
if u.Opaque != "" {
return nil, fmt.Errorf("invalid redis URL, url is opaque: %s", rawurl)
}
// As per the IANA draft spec, the host defaults to localhost and
// the port defaults to 6379.
host, port, err := net.SplitHostPort(u.Host)
if err != nil {
// assume port is missing
host = u.Host
port = "6379"
}
if host == "" {
host = "localhost"
}
address := net.JoinHostPort(host, port)
if u.User != nil {
password, isSet := u.User.Password()
username := u.User.Username()
if isSet {
if username != "" {
// ACL
options = append(options, DialUsername(username), DialPassword(password))
} else {
// requirepass - user-info username:password with blank username
options = append(options, DialPassword(password))
}
} else if username != "" {
// requirepass - redis-cli compatibility which treats as single arg in user-info as a password
options = append(options, DialPassword(username))
}
}
match := pathDBRegexp.FindStringSubmatch(u.Path)
if len(match) == 2 {
db := 0
if len(match[1]) > 0 {
db, err = strconv.Atoi(match[1])
if err != nil {
return nil, fmt.Errorf("invalid database: %s", u.Path[1:])
}
}
if db != 0 {
options = append(options, DialDatabase(db))
}
} else if u.Path != "" {
return nil, fmt.Errorf("invalid database: %s", u.Path[1:])
}
options = append(options, DialUseTLS(u.Scheme == "rediss"))
return DialContext(ctx, "tcp", address, options...)
}
// NewConn returns a new Redigo connection for the given net connection.
func NewConn(netConn net.Conn, readTimeout, writeTimeout time.Duration) Conn {
return &conn{
conn: netConn,
bw: bufio.NewWriter(netConn),
br: bufio.NewReader(netConn),
readTimeout: readTimeout,
writeTimeout: writeTimeout,
}
}
func (c *conn) Close() error {
c.mu.Lock()
err := c.err
if c.err == nil {
c.err = errors.New("redigo: closed")
err = c.conn.Close()
}
c.mu.Unlock()
return err
}
func (c *conn) fatal(err error) error {
c.mu.Lock()
if c.err == nil {
c.err = err
// Close connection to force errors on subsequent calls and to unblock
// other reader or writer.
c.conn.Close()
}
c.mu.Unlock()
return err
}
func (c *conn) Err() error {
c.mu.Lock()
err := c.err
c.mu.Unlock()
return err
}
func (c *conn) writeLen(prefix byte, n int) error {
c.lenScratch[len(c.lenScratch)-1] = '\n'
c.lenScratch[len(c.lenScratch)-2] = '\r'
i := len(c.lenScratch) - 3
for {
c.lenScratch[i] = byte('0' + n%10)
i -= 1
n = n / 10
if n == 0 {
break
}
}
c.lenScratch[i] = prefix
_, err := c.bw.Write(c.lenScratch[i:])
return err
}
func (c *conn) writeString(s string) error {
if err := c.writeLen('$', len(s)); err != nil {
return err
}
if _, err := c.bw.WriteString(s); err != nil {
return err
}
_, err := c.bw.WriteString("\r\n")
return err
}
func (c *conn) writeBytes(p []byte) error {
if err := c.writeLen('$', len(p)); err != nil {
return err
}
if _, err := c.bw.Write(p); err != nil {
return err
}
_, err := c.bw.WriteString("\r\n")
return err
}
func (c *conn) writeInt64(n int64) error {
return c.writeBytes(strconv.AppendInt(c.numScratch[:0], n, 10))
}
func (c *conn) writeFloat64(n float64) error {
return c.writeBytes(strconv.AppendFloat(c.numScratch[:0], n, 'g', -1, 64))
}
func (c *conn) writeCommand(cmd string, args []interface{}) error {
if err := c.writeLen('*', 1+len(args)); err != nil {
return err
}
if err := c.writeString(cmd); err != nil {
return err
}
for _, arg := range args {
if err := c.writeArg(arg, true); err != nil {
return err
}
}
return nil
}
func (c *conn) writeArg(arg interface{}, argumentTypeOK bool) (err error) {
switch arg := arg.(type) {
case string:
return c.writeString(arg)
case []byte:
return c.writeBytes(arg)
case int:
return c.writeInt64(int64(arg))
case int64:
return c.writeInt64(arg)
case float64:
return c.writeFloat64(arg)
case bool:
if arg {
return c.writeString("1")
} else {
return c.writeString("0")
}
case nil:
return c.writeString("")
case Argument:
if argumentTypeOK {
return c.writeArg(arg.RedisArg(), false)
}
// See comment in default clause below.
var buf bytes.Buffer
fmt.Fprint(&buf, arg)
return c.writeBytes(buf.Bytes())
default:
// This default clause is intended to handle builtin numeric types.
// The function should return an error for other types, but this is not
// done for compatibility with previous versions of the package.
var buf bytes.Buffer
fmt.Fprint(&buf, arg)
return c.writeBytes(buf.Bytes())
}
}
type protocolError string
func (pe protocolError) Error() string {
return fmt.Sprintf("redigo: %s (possible server error or unsupported concurrent read by application)", string(pe))
}
// readLine reads a line of input from the RESP stream.
func (c *conn) readLine() ([]byte, error) {
// To avoid allocations, attempt to read the line using ReadSlice. This
// call typically succeeds. The known case where the call fails is when
// reading the output from the MONITOR command.
p, err := c.br.ReadSlice('\n')
if err == bufio.ErrBufferFull {
// The line does not fit in the bufio.Reader's buffer. Fall back to
// allocating a buffer for the line.
buf := append([]byte{}, p...)
for err == bufio.ErrBufferFull {
p, err = c.br.ReadSlice('\n')
buf = append(buf, p...)
}
p = buf
}
if err != nil {
return nil, err
}
i := len(p) - 2
if i < 0 || p[i] != '\r' {
return nil, protocolError("bad response line terminator")
}
return p[:i], nil
}
// parseLen parses bulk string and array lengths.
func parseLen(p []byte) (int, error) {
if len(p) == 0 {
return -1, protocolError("malformed length")
}
if p[0] == '-' && len(p) == 2 && p[1] == '1' {
// handle $-1 and $-1 null replies.
return -1, nil
}
var n int
for _, b := range p {
n *= 10
if b < '0' || b > '9' {
return -1, protocolError("illegal bytes in length")
}
n += int(b - '0')
}
return n, nil
}
// parseInt parses an integer reply.
func parseInt(p []byte) (interface{}, error) {
if len(p) == 0 {
return 0, protocolError("malformed integer")
}
var negate bool
if p[0] == '-' {
negate = true
p = p[1:]
if len(p) == 0 {
return 0, protocolError("malformed integer")
}
}
var n int64
for _, b := range p {
n *= 10
if b < '0' || b > '9' {
return 0, protocolError("illegal bytes in length")
}
n += int64(b - '0')
}
if negate {
n = -n
}
return n, nil
}
var (
okReply interface{} = "OK"
pongReply interface{} = "PONG"
)
func (c *conn) readReply() (interface{}, error) {
line, err := c.readLine()
if err != nil {
return nil, err
}
if len(line) == 0 {
return nil, protocolError("short response line")
}
switch line[0] {
case '+':
switch string(line[1:]) {
case "OK":
// Avoid allocation for frequent "+OK" response.
return okReply, nil
case "PONG":
// Avoid allocation in PING command benchmarks :)
return pongReply, nil
default:
return string(line[1:]), nil
}
case '-':
return Error(line[1:]), nil
case ':':
return parseInt(line[1:])
case '$':
n, err := parseLen(line[1:])
if n < 0 || err != nil {
return nil, err
}
p := make([]byte, n)
_, err = io.ReadFull(c.br, p)
if err != nil {
return nil, err
}
if line, err := c.readLine(); err != nil {
return nil, err
} else if len(line) != 0 {
return nil, protocolError("bad bulk string format")
}
return p, nil
case '*':
n, err := parseLen(line[1:])
if n < 0 || err != nil {
return nil, err
}
r := make([]interface{}, n)
for i := range r {
r[i], err = c.readReply()
if err != nil {
return nil, err
}
}
return r, nil
}
return nil, protocolError("unexpected response line")
}
func (c *conn) Send(cmd string, args ...interface{}) error {
c.mu.Lock()
c.pending += 1
c.mu.Unlock()
if c.writeTimeout != 0 {
if err := c.conn.SetWriteDeadline(time.Now().Add(c.writeTimeout)); err != nil {
return c.fatal(err)
}
}
if err := c.writeCommand(cmd, args); err != nil {
return c.fatal(err)
}
return nil
}
func (c *conn) Flush() error {
if c.writeTimeout != 0 {
if err := c.conn.SetWriteDeadline(time.Now().Add(c.writeTimeout)); err != nil {
return c.fatal(err)
}
}
if err := c.bw.Flush(); err != nil {
return c.fatal(err)
}
return nil
}
func (c *conn) Receive() (interface{}, error) {
return c.ReceiveWithTimeout(c.readTimeout)
}
func (c *conn) ReceiveContext(ctx context.Context) (interface{}, error) {
var realTimeout time.Duration
if dl, ok := ctx.Deadline(); ok {
timeout := time.Until(dl)
if timeout >= c.readTimeout && c.readTimeout != 0 {
realTimeout = c.readTimeout
} else if timeout <= 0 {
return nil, c.fatal(context.DeadlineExceeded)
} else {
realTimeout = timeout
}
} else {
realTimeout = c.readTimeout
}
endch := make(chan struct{})
var r interface{}
var e error
go func() {
defer close(endch)
r, e = c.ReceiveWithTimeout(realTimeout)
}()
select {
case <-ctx.Done():
return nil, c.fatal(ctx.Err())
case <-endch:
return r, e
}
}
func (c *conn) ReceiveWithTimeout(timeout time.Duration) (reply interface{}, err error) {
var deadline time.Time
if timeout != 0 {
deadline = time.Now().Add(timeout)
}
if err := c.conn.SetReadDeadline(deadline); err != nil {
return nil, c.fatal(err)
}
if reply, err = c.readReply(); err != nil {
return nil, c.fatal(err)
}
// When using pub/sub, the number of receives can be greater than the
// number of sends. To enable normal use of the connection after
// unsubscribing from all channels, we do not decrement pending to a
// negative value.
//
// The pending field is decremented after the reply is read to handle the
// case where Receive is called before Send.
c.mu.Lock()
if c.pending > 0 {
c.pending -= 1
}
c.mu.Unlock()
if err, ok := reply.(Error); ok {
return nil, err
}
return
}
func (c *conn) Do(cmd string, args ...interface{}) (interface{}, error) {
return c.DoWithTimeout(c.readTimeout, cmd, args...)
}
func (c *conn) DoContext(ctx context.Context, cmd string, args ...interface{}) (interface{}, error) {
var realTimeout time.Duration
if dl, ok := ctx.Deadline(); ok {
timeout := time.Until(dl)
if timeout >= c.readTimeout && c.readTimeout != 0 {
realTimeout = c.readTimeout
} else if timeout <= 0 {
return nil, c.fatal(context.DeadlineExceeded)
} else {
realTimeout = timeout
}
} else {
realTimeout = c.readTimeout
}
endch := make(chan struct{})
var r interface{}
var e error
go func() {
defer close(endch)
r, e = c.DoWithTimeout(realTimeout, cmd, args...)
}()
select {
case <-ctx.Done():
return nil, c.fatal(ctx.Err())
case <-endch:
return r, e
}
}
func (c *conn) DoWithTimeout(readTimeout time.Duration, cmd string, args ...interface{}) (interface{}, error) {
c.mu.Lock()
pending := c.pending
c.pending = 0
c.mu.Unlock()
if cmd == "" && pending == 0 {
return nil, nil
}
if c.writeTimeout != 0 {
if err := c.conn.SetWriteDeadline(time.Now().Add(c.writeTimeout)); err != nil {
return nil, c.fatal(err)
}
}
if cmd != "" {
if err := c.writeCommand(cmd, args); err != nil {
return nil, c.fatal(err)
}
}
if err := c.bw.Flush(); err != nil {
return nil, c.fatal(err)
}
var deadline time.Time
if readTimeout != 0 {
deadline = time.Now().Add(readTimeout)
}
if err := c.conn.SetReadDeadline(deadline); err != nil {
return nil, c.fatal(err)
}
if cmd == "" {
reply := make([]interface{}, pending)
for i := range reply {
r, e := c.readReply()
if e != nil {
return nil, c.fatal(e)
}
reply[i] = r
}
return reply, nil
}
var err error
var reply interface{}
for i := 0; i <= pending; i++ {
var e error
if reply, e = c.readReply(); e != nil {
return nil, c.fatal(e)
}
if e, ok := reply.(Error); ok && err == nil {
err = e
}
}
return reply, err
}
vendor/github.com/gomodule/redigo/redis/doc.go
Generated Vendored
-177
View File
@@ -1,177 +0,0 @@
// Copyright 2012 Gary Burd
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
// Package redis is a client for the Redis database.
//
// The Redigo FAQ (https://github.com/gomodule/redigo/wiki/FAQ) contains more
// documentation about this package.
//
// Connections
//
// The Conn interface is the primary interface for working with Redis.
// Applications create connections by calling the Dial, DialWithTimeout or
// NewConn functions. In the future, functions will be added for creating
// sharded and other types of connections.
//
// The application must call the connection Close method when the application
// is done with the connection.
//
// Executing Commands
//
// The Conn interface has a generic method for executing Redis commands:
//
// Do(commandName string, args ...interface{}) (reply interface{}, err error)
//
// The Redis command reference (http://redis.io/commands) lists the available
// commands. An example of using the Redis APPEND command is:
//
// n, err := conn.Do("APPEND", "key", "value")
//
// The Do method converts command arguments to bulk strings for transmission
// to the server as follows:
//
// Go Type Conversion
// []byte Sent as is
// string Sent as is
// int, int64 strconv.FormatInt(v)
// float64 strconv.FormatFloat(v, 'g', -1, 64)
// bool true -> "1", false -> "0"
// nil ""
// all other types fmt.Fprint(w, v)
//
// Redis command reply types are represented using the following Go types:
//
// Redis type Go type
// error redis.Error
// integer int64
// simple string string
// bulk string []byte or nil if value not present.
// array []interface{} or nil if value not present.
//
// Use type assertions or the reply helper functions to convert from
// interface{} to the specific Go type for the command result.
//
// Pipelining
//
// Connections support pipelining using the Send, Flush and Receive methods.
//
// Send(commandName string, args ...interface{}) error
// Flush() error
// Receive() (reply interface{}, err error)
//
// Send writes the command to the connection's output buffer. Flush flushes the
// connection's output buffer to the server. Receive reads a single reply from
// the server. The following example shows a simple pipeline.
//
// c.Send("SET", "foo", "bar")
// c.Send("GET", "foo")
// c.Flush()
// c.Receive() // reply from SET
// v, err = c.Receive() // reply from GET
//
// The Do method combines the functionality of the Send, Flush and Receive
// methods. The Do method starts by writing the command and flushing the output
// buffer. Next, the Do method receives all pending replies including the reply
// for the command just sent by Do. If any of the received replies is an error,
// then Do returns the error. If there are no errors, then Do returns the last
// reply. If the command argument to the Do method is "", then the Do method
// will flush the output buffer and receive pending replies without sending a
// command.
//
// Use the Send and Do methods to implement pipelined transactions.
//
// c.Send("MULTI")
// c.Send("INCR", "foo")
// c.Send("INCR", "bar")
// r, err := c.Do("EXEC")
// fmt.Println(r) // prints [1, 1]
//
// Concurrency
//
// Connections support one concurrent caller to the Receive method and one
// concurrent caller to the Send and Flush methods. No other concurrency is
// supported including concurrent calls to the Do and Close methods.
//
// For full concurrent access to Redis, use the thread-safe Pool to get, use
// and release a connection from within a goroutine. Connections returned from
// a Pool have the concurrency restrictions described in the previous
// paragraph.
//
// Publish and Subscribe
//
// Use the Send, Flush and Receive methods to implement Pub/Sub subscribers.
//
// c.Send("SUBSCRIBE", "example")
// c.Flush()
// for {
// reply, err := c.Receive()
// if err != nil {
// return err
// }
// // process pushed message
// }
//
// The PubSubConn type wraps a Conn with convenience methods for implementing
// subscribers. The Subscribe, PSubscribe, Unsubscribe and PUnsubscribe methods
// send and flush a subscription management command. The receive method
// converts a pushed message to convenient types for use in a type switch.
//
// psc := redis.PubSubConn{Conn: c}
// psc.Subscribe("example")
// for {
// switch v := psc.Receive().(type) {
// case redis.Message:
// fmt.Printf("%s: message: %s\n", v.Channel, v.Data)
// case redis.Subscription:
// fmt.Printf("%s: %s %d\n", v.Channel, v.Kind, v.Count)
// case error:
// return v
// }
// }
//
// Reply Helpers
//
// The Bool, Int, Bytes, String, Strings and Values functions convert a reply
// to a value of a specific type. To allow convenient wrapping of calls to the
// connection Do and Receive methods, the functions take a second argument of
// type error. If the error is non-nil, then the helper function returns the
// error. If the error is nil, the function converts the reply to the specified
// type:
//
// exists, err := redis.Bool(c.Do("EXISTS", "foo"))
// if err != nil {
// // handle error return from c.Do or type conversion error.
// }
//
// The Scan function converts elements of a array reply to Go types:
//
// var value1 int
// var value2 string
// reply, err := redis.Values(c.Do("MGET", "key1", "key2"))
// if err != nil {
// // handle error
// }
// if _, err := redis.Scan(reply, &value1, &value2); err != nil {
// // handle error
// }
//
// Errors
//
// Connection methods return error replies from the server as type redis.Error.
//
// Call the connection Err() method to determine if the connection encountered
// non-recoverable error such as a network error or protocol parsing error. If
// Err() returns a non-nil value, then the connection is not usable and should
// be closed.
package redis
vendor/github.com/gomodule/redigo/redis/log.go
Generated Vendored
-159
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@@ -1,159 +0,0 @@
// Copyright 2012 Gary Burd
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
package redis
import (
"bytes"
"context"
"fmt"
"log"
"time"
)
var (
_ ConnWithTimeout = (*loggingConn)(nil)
)
// NewLoggingConn returns a logging wrapper around a connection.
func NewLoggingConn(conn Conn, logger *log.Logger, prefix string) Conn {
if prefix != "" {
prefix = prefix + "."
}
return &loggingConn{conn, logger, prefix, nil}
}
//NewLoggingConnFilter returns a logging wrapper around a connection and a filter function.
func NewLoggingConnFilter(conn Conn, logger *log.Logger, prefix string, skip func(cmdName string) bool) Conn {
if prefix != "" {
prefix = prefix + "."
}
return &loggingConn{conn, logger, prefix, skip}
}
type loggingConn struct {
Conn
logger *log.Logger
prefix string
skip func(cmdName string) bool
}
func (c *loggingConn) Close() error {
err := c.Conn.Close()
var buf bytes.Buffer
fmt.Fprintf(&buf, "%sClose() -> (%v)", c.prefix, err)
c.logger.Output(2, buf.String()) // nolint: errcheck
return err
}
func (c *loggingConn) printValue(buf *bytes.Buffer, v interface{}) {
const chop = 32
switch v := v.(type) {
case []byte:
if len(v) > chop {
fmt.Fprintf(buf, "%q...", v[:chop])
} else {
fmt.Fprintf(buf, "%q", v)
}
case string:
if len(v) > chop {
fmt.Fprintf(buf, "%q...", v[:chop])
} else {
fmt.Fprintf(buf, "%q", v)
}
case []interface{}:
if len(v) == 0 {
buf.WriteString("[]")
} else {
sep := "["
fin := "]"
if len(v) > chop {
v = v[:chop]
fin = "...]"
}
for _, vv := range v {
buf.WriteString(sep)
c.printValue(buf, vv)
sep = ", "
}
buf.WriteString(fin)
}
default:
fmt.Fprint(buf, v)
}
}
func (c *loggingConn) print(method, commandName string, args []interface{}, reply interface{}, err error) {
if c.skip != nil && c.skip(commandName) {
return
}
var buf bytes.Buffer
fmt.Fprintf(&buf, "%s%s(", c.prefix, method)
if method != "Receive" {
buf.WriteString(commandName)
for _, arg := range args {
buf.WriteString(", ")
c.printValue(&buf, arg)
}
}
buf.WriteString(") -> (")
if method != "Send" {
c.printValue(&buf, reply)
buf.WriteString(", ")
}
fmt.Fprintf(&buf, "%v)", err)
c.logger.Output(3, buf.String()) // nolint: errcheck
}
func (c *loggingConn) Do(commandName string, args ...interface{}) (interface{}, error) {
reply, err := c.Conn.Do(commandName, args...)
c.print("Do", commandName, args, reply, err)
return reply, err
}
func (c *loggingConn) DoContext(ctx context.Context, commandName string, args ...interface{}) (interface{}, error) {
reply, err := DoContext(c.Conn, ctx, commandName, args...)
c.print("DoContext", commandName, args, reply, err)
return reply, err
}
func (c *loggingConn) DoWithTimeout(timeout time.Duration, commandName string, args ...interface{}) (interface{}, error) {
reply, err := DoWithTimeout(c.Conn, timeout, commandName, args...)
c.print("DoWithTimeout", commandName, args, reply, err)
return reply, err
}
func (c *loggingConn) Send(commandName string, args ...interface{}) error {
err := c.Conn.Send(commandName, args...)
c.print("Send", commandName, args, nil, err)
return err
}
func (c *loggingConn) Receive() (interface{}, error) {
reply, err := c.Conn.Receive()
c.print("Receive", "", nil, reply, err)
return reply, err
}
func (c *loggingConn) ReceiveContext(ctx context.Context) (interface{}, error) {
reply, err := ReceiveContext(c.Conn, ctx)
c.print("ReceiveContext", "", nil, reply, err)
return reply, err
}
func (c *loggingConn) ReceiveWithTimeout(timeout time.Duration) (interface{}, error) {
reply, err := ReceiveWithTimeout(c.Conn, timeout)
c.print("ReceiveWithTimeout", "", nil, reply, err)
return reply, err
}
vendor/github.com/gomodule/redigo/redis/pool.go
Generated Vendored
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@@ -1,666 +0,0 @@
// Copyright 2012 Gary Burd
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
package redis
import (
"bytes"
"context"
"crypto/rand"
"crypto/sha1"
"errors"
"io"
"strconv"
"sync"
"time"
)
var (
_ ConnWithTimeout = (*activeConn)(nil)
_ ConnWithTimeout = (*errorConn)(nil)
)
var nowFunc = time.Now // for testing
// ErrPoolExhausted is returned from a pool connection method (Do, Send,
// Receive, Flush, Err) when the maximum number of database connections in the
// pool has been reached.
var ErrPoolExhausted = errors.New("redigo: connection pool exhausted")
var (
errConnClosed = errors.New("redigo: connection closed")
)
// Pool maintains a pool of connections. The application calls the Get method
// to get a connection from the pool and the connection's Close method to
// return the connection's resources to the pool.
//
// The following example shows how to use a pool in a web application. The
// application creates a pool at application startup and makes it available to
// request handlers using a package level variable. The pool configuration used
// here is an example, not a recommendation.
//
// func newPool(addr string) *redis.Pool {
// return &redis.Pool{
// MaxIdle: 3,
// IdleTimeout: 240 * time.Second,
// // Dial or DialContext must be set. When both are set, DialContext takes precedence over Dial.
// Dial: func () (redis.Conn, error) { return redis.Dial("tcp", addr) },
// }
// }
//
// var (
// pool *redis.Pool
// redisServer = flag.String("redisServer", ":6379", "")
// )
//
// func main() {
// flag.Parse()
// pool = newPool(*redisServer)
// ...
// }
//
// A request handler gets a connection from the pool and closes the connection
// when the handler is done:
//
// func serveHome(w http.ResponseWriter, r *http.Request) {
// conn := pool.Get()
// defer conn.Close()
// ...
// }
//
// Use the Dial function to authenticate connections with the AUTH command or
// select a database with the SELECT command:
//
// pool := &redis.Pool{
// // Other pool configuration not shown in this example.
// Dial: func () (redis.Conn, error) {
// c, err := redis.Dial("tcp", server)
// if err != nil {
// return nil, err
// }
// if _, err := c.Do("AUTH", password); err != nil {
// c.Close()
// return nil, err
// }
// if _, err := c.Do("SELECT", db); err != nil {
// c.Close()
// return nil, err
// }
// return c, nil
// },
// }
//
// Use the TestOnBorrow function to check the health of an idle connection
// before the connection is returned to the application. This example PINGs
// connections that have been idle more than a minute:
//
// pool := &redis.Pool{
// // Other pool configuration not shown in this example.
// TestOnBorrow: func(c redis.Conn, t time.Time) error {
// if time.Since(t) < time.Minute {
// return nil
// }
// _, err := c.Do("PING")
// return err
// },
// }
//
type Pool struct {
// Dial is an application supplied function for creating and configuring a
// connection.
//
// The connection returned from Dial must not be in a special state
// (subscribed to pubsub channel, transaction started, ...).
Dial func() (Conn, error)
// DialContext is an application supplied function for creating and configuring a
// connection with the given context.
//
// The connection returned from Dial must not be in a special state
// (subscribed to pubsub channel, transaction started, ...).
DialContext func(ctx context.Context) (Conn, error)
// TestOnBorrow is an optional application supplied function for checking
// the health of an idle connection before the connection is used again by
// the application. Argument t is the time that the connection was returned
// to the pool. If the function returns an error, then the connection is
// closed.
TestOnBorrow func(c Conn, t time.Time) error
// Maximum number of idle connections in the pool.
MaxIdle int
// Maximum number of connections allocated by the pool at a given time.
// When zero, there is no limit on the number of connections in the pool.
MaxActive int
// Close connections after remaining idle for this duration. If the value
// is zero, then idle connections are not closed. Applications should set
// the timeout to a value less than the server's timeout.
IdleTimeout time.Duration
// If Wait is true and the pool is at the MaxActive limit, then Get() waits
// for a connection to be returned to the pool before returning.
Wait bool
// Close connections older than this duration. If the value is zero, then
// the pool does not close connections based on age.
MaxConnLifetime time.Duration
mu sync.Mutex // mu protects the following fields
closed bool // set to true when the pool is closed.
active int // the number of open connections in the pool
initOnce sync.Once // the init ch once func
ch chan struct{} // limits open connections when p.Wait is true
idle idleList // idle connections
waitCount int64 // total number of connections waited for.
waitDuration time.Duration // total time waited for new connections.
}
// NewPool creates a new pool.
//
// Deprecated: Initialize the Pool directly as shown in the example.
func NewPool(newFn func() (Conn, error), maxIdle int) *Pool {
return &Pool{Dial: newFn, MaxIdle: maxIdle}
}
// Get gets a connection. The application must close the returned connection.
// This method always returns a valid connection so that applications can defer
// error handling to the first use of the connection. If there is an error
// getting an underlying connection, then the connection Err, Do, Send, Flush
// and Receive methods return that error.
func (p *Pool) Get() Conn {
// GetContext returns errorConn in the first argument when an error occurs.
c, _ := p.GetContext(context.Background())
return c
}
// GetContext gets a connection using the provided context.
//
// The provided Context must be non-nil. If the context expires before the
// connection is complete, an error is returned. Any expiration on the context
// will not affect the returned connection.
//
// If the function completes without error, then the application must close the
// returned connection.
func (p *Pool) GetContext(ctx context.Context) (Conn, error) {
// Wait until there is a vacant connection in the pool.
waited, err := p.waitVacantConn(ctx)
if err != nil {
return errorConn{err}, err
}
p.mu.Lock()
if waited > 0 {
p.waitCount++
p.waitDuration += waited
}
// Prune stale connections at the back of the idle list.
if p.IdleTimeout > 0 {
n := p.idle.count
for i := 0; i < n && p.idle.back != nil && p.idle.back.t.Add(p.IdleTimeout).Before(nowFunc()); i++ {
pc := p.idle.back
p.idle.popBack()
p.mu.Unlock()
pc.c.Close()
p.mu.Lock()
p.active--
}
}
// Get idle connection from the front of idle list.
for p.idle.front != nil {
pc := p.idle.front
p.idle.popFront()
p.mu.Unlock()
if (p.TestOnBorrow == nil || p.TestOnBorrow(pc.c, pc.t) == nil) &&
(p.MaxConnLifetime == 0 || nowFunc().Sub(pc.created) < p.MaxConnLifetime) {
return &activeConn{p: p, pc: pc}, nil
}
pc.c.Close()
p.mu.Lock()
p.active--
}
// Check for pool closed before dialing a new connection.
if p.closed {
p.mu.Unlock()
err := errors.New("redigo: get on closed pool")
return errorConn{err}, err
}
// Handle limit for p.Wait == false.
if !p.Wait && p.MaxActive > 0 && p.active >= p.MaxActive {
p.mu.Unlock()
return errorConn{ErrPoolExhausted}, ErrPoolExhausted
}
p.active++
p.mu.Unlock()
c, err := p.dial(ctx)
if err != nil {
p.mu.Lock()
p.active--
if p.ch != nil && !p.closed {
p.ch <- struct{}{}
}
p.mu.Unlock()
return errorConn{err}, err
}
return &activeConn{p: p, pc: &poolConn{c: c, created: nowFunc()}}, nil
}
// PoolStats contains pool statistics.
type PoolStats struct {
// ActiveCount is the number of connections in the pool. The count includes
// idle connections and connections in use.
ActiveCount int
// IdleCount is the number of idle connections in the pool.
IdleCount int
// WaitCount is the total number of connections waited for.
// This value is currently not guaranteed to be 100% accurate.
WaitCount int64
// WaitDuration is the total time blocked waiting for a new connection.
// This value is currently not guaranteed to be 100% accurate.
WaitDuration time.Duration
}
// Stats returns pool's statistics.
func (p *Pool) Stats() PoolStats {
p.mu.Lock()
stats := PoolStats{
ActiveCount: p.active,
IdleCount: p.idle.count,
WaitCount: p.waitCount,
WaitDuration: p.waitDuration,
}
p.mu.Unlock()
return stats
}
// ActiveCount returns the number of connections in the pool. The count
// includes idle connections and connections in use.
func (p *Pool) ActiveCount() int {
p.mu.Lock()
active := p.active
p.mu.Unlock()
return active
}
// IdleCount returns the number of idle connections in the pool.
func (p *Pool) IdleCount() int {
p.mu.Lock()
idle := p.idle.count
p.mu.Unlock()
return idle
}
// Close releases the resources used by the pool.
func (p *Pool) Close() error {
p.mu.Lock()
if p.closed {
p.mu.Unlock()
return nil
}
p.closed = true
p.active -= p.idle.count
pc := p.idle.front
p.idle.count = 0
p.idle.front, p.idle.back = nil, nil
if p.ch != nil {
close(p.ch)
}
p.mu.Unlock()
for ; pc != nil; pc = pc.next {
pc.c.Close()
}
return nil
}
func (p *Pool) lazyInit() {
p.initOnce.Do(func() {
p.ch = make(chan struct{}, p.MaxActive)
if p.closed {
close(p.ch)
} else {
for i := 0; i < p.MaxActive; i++ {
p.ch <- struct{}{}
}
}
})
}
// waitVacantConn waits for a vacant connection in pool if waiting
// is enabled and pool size is limited, otherwise returns instantly.
// If ctx expires before that, an error is returned.
//
// If there were no vacant connection in the pool right away it returns the time spent waiting
// for that connection to appear in the pool.
func (p *Pool) waitVacantConn(ctx context.Context) (waited time.Duration, err error) {
if !p.Wait || p.MaxActive <= 0 {
// No wait or no connection limit.
return 0, nil
}
p.lazyInit()
// wait indicates if we believe it will block so its not 100% accurate
// however for stats it should be good enough.
wait := len(p.ch) == 0
var start time.Time
if wait {
start = time.Now()
}
select {
case <-p.ch:
// Additionally check that context hasn't expired while we were waiting,
// because `select` picks a random `case` if several of them are "ready".
select {
case <-ctx.Done():
p.ch <- struct{}{}
return 0, ctx.Err()
default:
}
case <-ctx.Done():
return 0, ctx.Err()
}
if wait {
return time.Since(start), nil
}
return 0, nil
}
func (p *Pool) dial(ctx context.Context) (Conn, error) {
if p.DialContext != nil {
return p.DialContext(ctx)
}
if p.Dial != nil {
return p.Dial()
}
return nil, errors.New("redigo: must pass Dial or DialContext to pool")
}
func (p *Pool) put(pc *poolConn, forceClose bool) error {
p.mu.Lock()
if !p.closed && !forceClose {
pc.t = nowFunc()
p.idle.pushFront(pc)
if p.idle.count > p.MaxIdle {
pc = p.idle.back
p.idle.popBack()
} else {
pc = nil
}
}
if pc != nil {
p.mu.Unlock()
pc.c.Close()
p.mu.Lock()
p.active--
}
if p.ch != nil && !p.closed {
p.ch <- struct{}{}
}
p.mu.Unlock()
return nil
}
type activeConn struct {
p *Pool
pc *poolConn
state int
}
var (
sentinel []byte
sentinelOnce sync.Once
)
func initSentinel() {
p := make([]byte, 64)
if _, err := rand.Read(p); err == nil {
sentinel = p
} else {
h := sha1.New()
io.WriteString(h, "Oops, rand failed. Use time instead.") // nolint: errcheck
io.WriteString(h, strconv.FormatInt(time.Now().UnixNano(), 10)) // nolint: errcheck
sentinel = h.Sum(nil)
}
}
func (ac *activeConn) firstError(errs ...error) error {
for _, err := range errs[:len(errs)-1] {
if err != nil {
return err
}
}
return errs[len(errs)-1]
}
func (ac *activeConn) Close() (err error) {
pc := ac.pc
if pc == nil {
return nil
}
ac.pc = nil
if ac.state&connectionMultiState != 0 {
err = pc.c.Send("DISCARD")
ac.state &^= (connectionMultiState | connectionWatchState)
} else if ac.state&connectionWatchState != 0 {
err = pc.c.Send("UNWATCH")
ac.state &^= connectionWatchState
}
if ac.state&connectionSubscribeState != 0 {
err = ac.firstError(err,
pc.c.Send("UNSUBSCRIBE"),
pc.c.Send("PUNSUBSCRIBE"),
)
// To detect the end of the message stream, ask the server to echo
// a sentinel value and read until we see that value.
sentinelOnce.Do(initSentinel)
err = ac.firstError(err,
pc.c.Send("ECHO", sentinel),
pc.c.Flush(),
)
for {
p, err2 := pc.c.Receive()
if err2 != nil {
err = ac.firstError(err, err2)
break
}
if p, ok := p.([]byte); ok && bytes.Equal(p, sentinel) {
ac.state &^= connectionSubscribeState
break
}
}
}
_, err2 := pc.c.Do("")
return ac.firstError(
err,
err2,
ac.p.put(pc, ac.state != 0 || pc.c.Err() != nil),
)
}
func (ac *activeConn) Err() error {
pc := ac.pc
if pc == nil {
return errConnClosed
}
return pc.c.Err()
}
func (ac *activeConn) DoContext(ctx context.Context, commandName string, args ...interface{}) (reply interface{}, err error) {
pc := ac.pc
if pc == nil {
return nil, errConnClosed
}
cwt, ok := pc.c.(ConnWithContext)
if !ok {
return nil, errContextNotSupported
}
ci := lookupCommandInfo(commandName)
ac.state = (ac.state | ci.Set) &^ ci.Clear
return cwt.DoContext(ctx, commandName, args...)
}
func (ac *activeConn) Do(commandName string, args ...interface{}) (reply interface{}, err error) {
pc := ac.pc
if pc == nil {
return nil, errConnClosed
}
ci := lookupCommandInfo(commandName)
ac.state = (ac.state | ci.Set) &^ ci.Clear
return pc.c.Do(commandName, args...)
}
func (ac *activeConn) DoWithTimeout(timeout time.Duration, commandName string, args ...interface{}) (reply interface{}, err error) {
pc := ac.pc
if pc == nil {
return nil, errConnClosed
}
cwt, ok := pc.c.(ConnWithTimeout)
if !ok {
return nil, errTimeoutNotSupported
}
ci := lookupCommandInfo(commandName)
ac.state = (ac.state | ci.Set) &^ ci.Clear
return cwt.DoWithTimeout(timeout, commandName, args...)
}
func (ac *activeConn) Send(commandName string, args ...interface{}) error {
pc := ac.pc
if pc == nil {
return errConnClosed
}
ci := lookupCommandInfo(commandName)
ac.state = (ac.state | ci.Set) &^ ci.Clear
return pc.c.Send(commandName, args...)
}
func (ac *activeConn) Flush() error {
pc := ac.pc
if pc == nil {
return errConnClosed
}
return pc.c.Flush()
}
func (ac *activeConn) Receive() (reply interface{}, err error) {
pc := ac.pc
if pc == nil {
return nil, errConnClosed
}
return pc.c.Receive()
}
func (ac *activeConn) ReceiveContext(ctx context.Context) (reply interface{}, err error) {
pc := ac.pc
if pc == nil {
return nil, errConnClosed
}
cwt, ok := pc.c.(ConnWithContext)
if !ok {
return nil, errContextNotSupported
}
return cwt.ReceiveContext(ctx)
}
func (ac *activeConn) ReceiveWithTimeout(timeout time.Duration) (reply interface{}, err error) {
pc := ac.pc
if pc == nil {
return nil, errConnClosed
}
cwt, ok := pc.c.(ConnWithTimeout)
if !ok {
return nil, errTimeoutNotSupported
}
return cwt.ReceiveWithTimeout(timeout)
}
type errorConn struct{ err error }
func (ec errorConn) Do(string, ...interface{}) (interface{}, error) { return nil, ec.err }
func (ec errorConn) DoContext(context.Context, string, ...interface{}) (interface{}, error) {
return nil, ec.err
}
func (ec errorConn) DoWithTimeout(time.Duration, string, ...interface{}) (interface{}, error) {
return nil, ec.err
}
func (ec errorConn) Send(string, ...interface{}) error { return ec.err }
func (ec errorConn) Err() error { return ec.err }
func (ec errorConn) Close() error { return nil }
func (ec errorConn) Flush() error { return ec.err }
func (ec errorConn) Receive() (interface{}, error) { return nil, ec.err }
func (ec errorConn) ReceiveContext(context.Context) (interface{}, error) { return nil, ec.err }
func (ec errorConn) ReceiveWithTimeout(time.Duration) (interface{}, error) { return nil, ec.err }
type idleList struct {
count int
front, back *poolConn
}
type poolConn struct {
c Conn
t time.Time
created time.Time
next, prev *poolConn
}
func (l *idleList) pushFront(pc *poolConn) {
pc.next = l.front
pc.prev = nil
if l.count == 0 {
l.back = pc
} else {
l.front.prev = pc
}
l.front = pc
l.count++
}
func (l *idleList) popFront() {
pc := l.front
l.count--
if l.count == 0 {
l.front, l.back = nil, nil
} else {
pc.next.prev = nil
l.front = pc.next
}
pc.next, pc.prev = nil, nil
}
func (l *idleList) popBack() {
pc := l.back
l.count--
if l.count == 0 {
l.front, l.back = nil, nil
} else {
pc.prev.next = nil
l.back = pc.prev
}
pc.next, pc.prev = nil, nil
}
vendor/github.com/gomodule/redigo/redis/pubsub.go
Generated Vendored
-166
View File
@@ -1,166 +0,0 @@
// Copyright 2012 Gary Burd
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
package redis
import (
"context"
"errors"
"time"
)
// Subscription represents a subscribe or unsubscribe notification.
type Subscription struct {
// Kind is "subscribe", "unsubscribe", "psubscribe" or "punsubscribe"
Kind string
// The channel that was changed.
Channel string
// The current number of subscriptions for connection.
Count int
}
// Message represents a message notification.
type Message struct {
// The originating channel.
Channel string
// The matched pattern, if any
Pattern string
// The message data.
Data []byte
}
// Pong represents a pubsub pong notification.
type Pong struct {
Data string
}
// PubSubConn wraps a Conn with convenience methods for subscribers.
type PubSubConn struct {
Conn Conn
}
// Close closes the connection.
func (c PubSubConn) Close() error {
return c.Conn.Close()
}
// Subscribe subscribes the connection to the specified channels.
func (c PubSubConn) Subscribe(channel ...interface{}) error {
if err := c.Conn.Send("SUBSCRIBE", channel...); err != nil {
return err
}
return c.Conn.Flush()
}
// PSubscribe subscribes the connection to the given patterns.
func (c PubSubConn) PSubscribe(channel ...interface{}) error {
if err := c.Conn.Send("PSUBSCRIBE", channel...); err != nil {
return err
}
return c.Conn.Flush()
}
// Unsubscribe unsubscribes the connection from the given channels, or from all
// of them if none is given.
func (c PubSubConn) Unsubscribe(channel ...interface{}) error {
if err := c.Conn.Send("UNSUBSCRIBE", channel...); err != nil {
return err
}
return c.Conn.Flush()
}
// PUnsubscribe unsubscribes the connection from the given patterns, or from all
// of them if none is given.
func (c PubSubConn) PUnsubscribe(channel ...interface{}) error {
if err := c.Conn.Send("PUNSUBSCRIBE", channel...); err != nil {
return err
}
return c.Conn.Flush()
}
// Ping sends a PING to the server with the specified data.
//
// The connection must be subscribed to at least one channel or pattern when
// calling this method.
func (c PubSubConn) Ping(data string) error {
if err := c.Conn.Send("PING", data); err != nil {
return err
}
return c.Conn.Flush()
}
// Receive returns a pushed message as a Subscription, Message, Pong or error.
// The return value is intended to be used directly in a type switch as
// illustrated in the PubSubConn example.
func (c PubSubConn) Receive() interface{} {
return c.receiveInternal(c.Conn.Receive())
}
// ReceiveWithTimeout is like Receive, but it allows the application to
// override the connection's default timeout.
func (c PubSubConn) ReceiveWithTimeout(timeout time.Duration) interface{} {
return c.receiveInternal(ReceiveWithTimeout(c.Conn, timeout))
}
// ReceiveContext is like Receive, but it allows termination of the receive
// via a Context. If the call returns due to closure of the context's Done
// channel the underlying Conn will have been closed.
func (c PubSubConn) ReceiveContext(ctx context.Context) interface{} {
return c.receiveInternal(ReceiveContext(c.Conn, ctx))
}
func (c PubSubConn) receiveInternal(replyArg interface{}, errArg error) interface{} {
reply, err := Values(replyArg, errArg)
if err != nil {
return err
}
var kind string
reply, err = Scan(reply, &kind)
if err != nil {
return err
}
switch kind {
case "message":
var m Message
if _, err := Scan(reply, &m.Channel, &m.Data); err != nil {
return err
}
return m
case "pmessage":
var m Message
if _, err := Scan(reply, &m.Pattern, &m.Channel, &m.Data); err != nil {
return err
}
return m
case "subscribe", "psubscribe", "unsubscribe", "punsubscribe":
s := Subscription{Kind: kind}
if _, err := Scan(reply, &s.Channel, &s.Count); err != nil {
return err
}
return s
case "pong":
var p Pong
if _, err := Scan(reply, &p.Data); err != nil {
return err
}
return p
}
return errors.New("redigo: unknown pubsub notification")
}
vendor/github.com/gomodule/redigo/redis/redis.go
Generated Vendored
-213
View File
@@ -1,213 +0,0 @@
// Copyright 2012 Gary Burd
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
package redis
import (
"context"
"errors"
"time"
)
// Error represents an error returned in a command reply.
type Error string
func (err Error) Error() string { return string(err) }
// Conn represents a connection to a Redis server.
type Conn interface {
// Close closes the connection.
Close() error
// Err returns a non-nil value when the connection is not usable.
Err() error
// Do sends a command to the server and returns the received reply.
// This function will use the timeout which was set when the connection is created
Do(commandName string, args ...interface{}) (reply interface{}, err error)
// Send writes the command to the client's output buffer.
Send(commandName string, args ...interface{}) error
// Flush flushes the output buffer to the Redis server.
Flush() error
// Receive receives a single reply from the Redis server
Receive() (reply interface{}, err error)
}
// Argument is the interface implemented by an object which wants to control how
// the object is converted to Redis bulk strings.
type Argument interface {
// RedisArg returns a value to be encoded as a bulk string per the
// conversions listed in the section 'Executing Commands'.
// Implementations should typically return a []byte or string.
RedisArg() interface{}
}
// Scanner is implemented by an object which wants to control its value is
// interpreted when read from Redis.
type Scanner interface {
// RedisScan assigns a value from a Redis value. The argument src is one of
// the reply types listed in the section `Executing Commands`.
//
// An error should be returned if the value cannot be stored without
// loss of information.
RedisScan(src interface{}) error
}
// ConnWithTimeout is an optional interface that allows the caller to override
// a connection's default read timeout. This interface is useful for executing
// the BLPOP, BRPOP, BRPOPLPUSH, XREAD and other commands that block at the
// server.
//
// A connection's default read timeout is set with the DialReadTimeout dial
// option. Applications should rely on the default timeout for commands that do
// not block at the server.
//
// All of the Conn implementations in this package satisfy the ConnWithTimeout
// interface.
//
// Use the DoWithTimeout and ReceiveWithTimeout helper functions to simplify
// use of this interface.
type ConnWithTimeout interface {
Conn
// DoWithTimeout sends a command to the server and returns the received reply.
// The timeout overrides the readtimeout set when dialing the connection.
DoWithTimeout(timeout time.Duration, commandName string, args ...interface{}) (reply interface{}, err error)
// ReceiveWithTimeout receives a single reply from the Redis server.
// The timeout overrides the readtimeout set when dialing the connection.
ReceiveWithTimeout(timeout time.Duration) (reply interface{}, err error)
}
// ConnWithContext is an optional interface that allows the caller to control the command's life with context.
type ConnWithContext interface {
Conn
// DoContext sends a command to server and returns the received reply.
// min(ctx,DialReadTimeout()) will be used as the deadline.
// The connection will be closed if DialReadTimeout() timeout or ctx timeout or ctx canceled when this function is running.
// DialReadTimeout() timeout return err can be checked by errors.Is(err, os.ErrDeadlineExceeded).
// ctx timeout return err context.DeadlineExceeded.
// ctx canceled return err context.Canceled.
DoContext(ctx context.Context, commandName string, args ...interface{}) (reply interface{}, err error)
// ReceiveContext receives a single reply from the Redis server.
// min(ctx,DialReadTimeout()) will be used as the deadline.
// The connection will be closed if DialReadTimeout() timeout or ctx timeout or ctx canceled when this function is running.
// DialReadTimeout() timeout return err can be checked by errors.Is(err, os.ErrDeadlineExceeded).
// ctx timeout return err context.DeadlineExceeded.
// ctx canceled return err context.Canceled.
ReceiveContext(ctx context.Context) (reply interface{}, err error)
}
var errTimeoutNotSupported = errors.New("redis: connection does not support ConnWithTimeout")
var errContextNotSupported = errors.New("redis: connection does not support ConnWithContext")
// DoContext sends a command to server and returns the received reply.
// min(ctx,DialReadTimeout()) will be used as the deadline.
// The connection will be closed if DialReadTimeout() timeout or ctx timeout or ctx canceled when this function is running.
// DialReadTimeout() timeout return err can be checked by errors.Is(err, os.ErrDeadlineExceeded).
// ctx timeout return err context.DeadlineExceeded.
// ctx canceled return err context.Canceled.
func DoContext(c Conn, ctx context.Context, cmd string, args ...interface{}) (interface{}, error) {
cwt, ok := c.(ConnWithContext)
if !ok {
return nil, errContextNotSupported
}
return cwt.DoContext(ctx, cmd, args...)
}
// DoWithTimeout executes a Redis command with the specified read timeout. If
// the connection does not satisfy the ConnWithTimeout interface, then an error
// is returned.
func DoWithTimeout(c Conn, timeout time.Duration, cmd string, args ...interface{}) (interface{}, error) {
cwt, ok := c.(ConnWithTimeout)
if !ok {
return nil, errTimeoutNotSupported
}
return cwt.DoWithTimeout(timeout, cmd, args...)
}
// ReceiveContext receives a single reply from the Redis server.
// min(ctx,DialReadTimeout()) will be used as the deadline.
// The connection will be closed if DialReadTimeout() timeout or ctx timeout or ctx canceled when this function is running.
// DialReadTimeout() timeout return err can be checked by strings.Contains(e.Error(), "io/timeout").
// ctx timeout return err context.DeadlineExceeded.
// ctx canceled return err context.Canceled.
func ReceiveContext(c Conn, ctx context.Context) (interface{}, error) {
cwt, ok := c.(ConnWithContext)
if !ok {
return nil, errContextNotSupported
}
return cwt.ReceiveContext(ctx)
}
// ReceiveWithTimeout receives a reply with the specified read timeout. If the
// connection does not satisfy the ConnWithTimeout interface, then an error is
// returned.
func ReceiveWithTimeout(c Conn, timeout time.Duration) (interface{}, error) {
cwt, ok := c.(ConnWithTimeout)
if !ok {
return nil, errTimeoutNotSupported
}
return cwt.ReceiveWithTimeout(timeout)
}
// SlowLog represents a redis SlowLog
type SlowLog struct {
// ID is a unique progressive identifier for every slow log entry.
ID int64
// Time is the unix timestamp at which the logged command was processed.
Time time.Time
// ExecutationTime is the amount of time needed for the command execution.
ExecutionTime time.Duration
// Args is the command name and arguments
Args []string
// ClientAddr is the client IP address (4.0 only).
ClientAddr string
// ClientName is the name set via the CLIENT SETNAME command (4.0 only).
ClientName string
}
// Latency represents a redis LATENCY LATEST.
type Latency struct {
// Name of the latest latency spike event.
Name string
// Time of the latest latency spike for the event.
Time time.Time
// Latest is the latest recorded latency for the named event.
Latest time.Duration
// Max is the maximum latency for the named event.
Max time.Duration
}
// LatencyHistory represents a redis LATENCY HISTORY.
type LatencyHistory struct {
// Time is the unix timestamp at which the event was processed.
Time time.Time
// ExecutationTime is the amount of time needed for the command execution.
ExecutionTime time.Duration
}
vendor/github.com/gomodule/redigo/redis/reflect.go
Generated Vendored
-48
View File
@@ -1,48 +0,0 @@
package redis
import (
"reflect"
"runtime"
)
// methodName returns the name of the calling method,
// assumed to be two stack frames above.
func methodName() string {
pc, _, _, _ := runtime.Caller(2)
f := runtime.FuncForPC(pc)
if f == nil {
return "unknown method"
}
return f.Name()
}
// mustBe panics if f's kind is not expected.
func mustBe(v reflect.Value, expected reflect.Kind) {
if v.Kind() != expected {
panic(&reflect.ValueError{Method: methodName(), Kind: v.Kind()})
}
}
// fieldByIndexCreate returns the nested field corresponding
// to index creating elements that are nil when stepping through.
// It panics if v is not a struct.
func fieldByIndexCreate(v reflect.Value, index []int) reflect.Value {
if len(index) == 1 {
return v.Field(index[0])
}
mustBe(v, reflect.Struct)
for i, x := range index {
if i > 0 {
if v.Kind() == reflect.Ptr && v.Type().Elem().Kind() == reflect.Struct {
if v.IsNil() {
v.Set(reflect.New(v.Type().Elem()))
}
v = v.Elem()
}
}
v = v.Field(x)
}
return v
}
vendor/github.com/gomodule/redigo/redis/reflect_go117.go
Generated Vendored
-34
View File
@@ -1,34 +0,0 @@
//go:build !go1.18
// +build !go1.18
package redis
import (
"errors"
"reflect"
)
// fieldByIndexErr returns the nested field corresponding to index.
// It returns an error if evaluation requires stepping through a nil
// pointer, but panics if it must step through a field that
// is not a struct.
func fieldByIndexErr(v reflect.Value, index []int) (reflect.Value, error) {
if len(index) == 1 {
return v.Field(index[0]), nil
}
mustBe(v, reflect.Struct)
for i, x := range index {
if i > 0 {
if v.Kind() == reflect.Ptr && v.Type().Elem().Kind() == reflect.Struct {
if v.IsNil() {
return reflect.Value{}, errors.New("reflect: indirection through nil pointer to embedded struct field " + v.Type().Elem().Name())
}
v = v.Elem()
}
}
v = v.Field(x)
}
return v, nil
}
vendor/github.com/gomodule/redigo/redis/reflect_go118.go
Generated Vendored
-16
View File
@@ -1,16 +0,0 @@
//go:build go1.18
// +build go1.18
package redis
import (
"reflect"
)
// fieldByIndexErr returns the nested field corresponding to index.
// It returns an error if evaluation requires stepping through a nil
// pointer, but panics if it must step through a field that
// is not a struct.
func fieldByIndexErr(v reflect.Value, index []int) (reflect.Value, error) {
return v.FieldByIndexErr(index)
}
vendor/github.com/gomodule/redigo/redis/reply.go
Generated Vendored
-735
View File
@@ -1,735 +0,0 @@
// Copyright 2012 Gary Burd
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
package redis
import (
"errors"
"fmt"
"strconv"
"time"
)
// ErrNil indicates that a reply value is nil.
var ErrNil = errors.New("redigo: nil returned")
// Int is a helper that converts a command reply to an integer. If err is not
// equal to nil, then Int returns 0, err. Otherwise, Int converts the
// reply to an int as follows:
//
// Reply type Result
// integer int(reply), nil
// bulk string parsed reply, nil
// nil 0, ErrNil
// other 0, error
func Int(reply interface{}, err error) (int, error) {
if err != nil {
return 0, err
}
switch reply := reply.(type) {
case int64:
x := int(reply)
if int64(x) != reply {
return 0, strconv.ErrRange
}
return x, nil
case []byte:
n, err := strconv.ParseInt(string(reply), 10, 0)
return int(n), err
case nil:
return 0, ErrNil
case Error:
return 0, reply
}
return 0, fmt.Errorf("redigo: unexpected type for Int, got type %T", reply)
}
// Int64 is a helper that converts a command reply to 64 bit integer. If err is
// not equal to nil, then Int64 returns 0, err. Otherwise, Int64 converts the
// reply to an int64 as follows:
//
// Reply type Result
// integer reply, nil
// bulk string parsed reply, nil
// nil 0, ErrNil
// other 0, error
func Int64(reply interface{}, err error) (int64, error) {
if err != nil {
return 0, err
}
switch reply := reply.(type) {
case int64:
return reply, nil
case []byte:
n, err := strconv.ParseInt(string(reply), 10, 64)
return n, err
case nil:
return 0, ErrNil
case Error:
return 0, reply
}
return 0, fmt.Errorf("redigo: unexpected type for Int64, got type %T", reply)
}
func errNegativeInt(v int64) error {
return fmt.Errorf("redigo: unexpected negative value %v for Uint64", v)
}
// Uint64 is a helper that converts a command reply to 64 bit unsigned integer.
// If err is not equal to nil, then Uint64 returns 0, err. Otherwise, Uint64 converts the
// reply to an uint64 as follows:
//
// Reply type Result
// +integer reply, nil
// bulk string parsed reply, nil
// nil 0, ErrNil
// other 0, error
func Uint64(reply interface{}, err error) (uint64, error) {
if err != nil {
return 0, err
}
switch reply := reply.(type) {
case int64:
if reply < 0 {
return 0, errNegativeInt(reply)
}
return uint64(reply), nil
case []byte:
n, err := strconv.ParseUint(string(reply), 10, 64)
return n, err
case nil:
return 0, ErrNil
case Error:
return 0, reply
}
return 0, fmt.Errorf("redigo: unexpected type for Uint64, got type %T", reply)
}
// Float64 is a helper that converts a command reply to 64 bit float. If err is
// not equal to nil, then Float64 returns 0, err. Otherwise, Float64 converts
// the reply to a float64 as follows:
//
// Reply type Result
// bulk string parsed reply, nil
// nil 0, ErrNil
// other 0, error
func Float64(reply interface{}, err error) (float64, error) {
if err != nil {
return 0, err
}
switch reply := reply.(type) {
case []byte:
n, err := strconv.ParseFloat(string(reply), 64)
return n, err
case nil:
return 0, ErrNil
case Error:
return 0, reply
}
return 0, fmt.Errorf("redigo: unexpected type for Float64, got type %T", reply)
}
// String is a helper that converts a command reply to a string. If err is not
// equal to nil, then String returns "", err. Otherwise String converts the
// reply to a string as follows:
//
// Reply type Result
// bulk string string(reply), nil
// simple string reply, nil
// nil "", ErrNil
// other "", error
func String(reply interface{}, err error) (string, error) {
if err != nil {
return "", err
}
switch reply := reply.(type) {
case []byte:
return string(reply), nil
case string:
return reply, nil
case nil:
return "", ErrNil
case Error:
return "", reply
}
return "", fmt.Errorf("redigo: unexpected type for String, got type %T", reply)
}
// Bytes is a helper that converts a command reply to a slice of bytes. If err
// is not equal to nil, then Bytes returns nil, err. Otherwise Bytes converts
// the reply to a slice of bytes as follows:
//
// Reply type Result
// bulk string reply, nil
// simple string []byte(reply), nil
// nil nil, ErrNil
// other nil, error
func Bytes(reply interface{}, err error) ([]byte, error) {
if err != nil {
return nil, err
}
switch reply := reply.(type) {
case []byte:
return reply, nil
case string:
return []byte(reply), nil
case nil:
return nil, ErrNil
case Error:
return nil, reply
}
return nil, fmt.Errorf("redigo: unexpected type for Bytes, got type %T", reply)
}
// Bool is a helper that converts a command reply to a boolean. If err is not
// equal to nil, then Bool returns false, err. Otherwise Bool converts the
// reply to boolean as follows:
//
// Reply type Result
// integer value != 0, nil
// bulk string strconv.ParseBool(reply)
// nil false, ErrNil
// other false, error
func Bool(reply interface{}, err error) (bool, error) {
if err != nil {
return false, err
}
switch reply := reply.(type) {
case int64:
return reply != 0, nil
case []byte:
return strconv.ParseBool(string(reply))
case nil:
return false, ErrNil
case Error:
return false, reply
}
return false, fmt.Errorf("redigo: unexpected type for Bool, got type %T", reply)
}
// MultiBulk is a helper that converts an array command reply to a []interface{}.
//
// Deprecated: Use Values instead.
func MultiBulk(reply interface{}, err error) ([]interface{}, error) { return Values(reply, err) }
// Values is a helper that converts an array command reply to a []interface{}.
// If err is not equal to nil, then Values returns nil, err. Otherwise, Values
// converts the reply as follows:
//
// Reply type Result
// array reply, nil
// nil nil, ErrNil
// other nil, error
func Values(reply interface{}, err error) ([]interface{}, error) {
if err != nil {
return nil, err
}
switch reply := reply.(type) {
case []interface{}:
return reply, nil
case nil:
return nil, ErrNil
case Error:
return nil, reply
}
return nil, fmt.Errorf("redigo: unexpected type for Values, got type %T", reply)
}
func sliceHelper(reply interface{}, err error, name string, makeSlice func(int), assign func(int, interface{}) error) error {
if err != nil {
return err
}
switch reply := reply.(type) {
case []interface{}:
makeSlice(len(reply))
for i := range reply {
if reply[i] == nil {
continue
}
if err := assign(i, reply[i]); err != nil {
return err
}
}
return nil
case nil:
return ErrNil
case Error:
return reply
}
return fmt.Errorf("redigo: unexpected type for %s, got type %T", name, reply)
}
// Float64s is a helper that converts an array command reply to a []float64. If
// err is not equal to nil, then Float64s returns nil, err. Nil array items are
// converted to 0 in the output slice. Floats64 returns an error if an array
// item is not a bulk string or nil.
func Float64s(reply interface{}, err error) ([]float64, error) {
var result []float64
err = sliceHelper(reply, err, "Float64s", func(n int) { result = make([]float64, n) }, func(i int, v interface{}) error {
switch v := v.(type) {
case []byte:
f, err := strconv.ParseFloat(string(v), 64)
result[i] = f
return err
case Error:
return v
default:
return fmt.Errorf("redigo: unexpected element type for Float64s, got type %T", v)
}
})
return result, err
}
// Strings is a helper that converts an array command reply to a []string. If
// err is not equal to nil, then Strings returns nil, err. Nil array items are
// converted to "" in the output slice. Strings returns an error if an array
// item is not a bulk string or nil.
func Strings(reply interface{}, err error) ([]string, error) {
var result []string
err = sliceHelper(reply, err, "Strings", func(n int) { result = make([]string, n) }, func(i int, v interface{}) error {
switch v := v.(type) {
case string:
result[i] = v
return nil
case []byte:
result[i] = string(v)
return nil
case Error:
return v
default:
return fmt.Errorf("redigo: unexpected element type for Strings, got type %T", v)
}
})
return result, err
}
// ByteSlices is a helper that converts an array command reply to a [][]byte.
// If err is not equal to nil, then ByteSlices returns nil, err. Nil array
// items are stay nil. ByteSlices returns an error if an array item is not a
// bulk string or nil.
func ByteSlices(reply interface{}, err error) ([][]byte, error) {
var result [][]byte
err = sliceHelper(reply, err, "ByteSlices", func(n int) { result = make([][]byte, n) }, func(i int, v interface{}) error {
switch v := v.(type) {
case []byte:
result[i] = v
return nil
case Error:
return v
default:
return fmt.Errorf("redigo: unexpected element type for ByteSlices, got type %T", v)
}
})
return result, err
}
// Int64s is a helper that converts an array command reply to a []int64.
// If err is not equal to nil, then Int64s returns nil, err. Nil array
// items are stay nil. Int64s returns an error if an array item is not a
// bulk string or nil.
func Int64s(reply interface{}, err error) ([]int64, error) {
var result []int64
err = sliceHelper(reply, err, "Int64s", func(n int) { result = make([]int64, n) }, func(i int, v interface{}) error {
switch v := v.(type) {
case int64:
result[i] = v
return nil
case []byte:
n, err := strconv.ParseInt(string(v), 10, 64)
result[i] = n
return err
case Error:
return v
default:
return fmt.Errorf("redigo: unexpected element type for Int64s, got type %T", v)
}
})
return result, err
}
// Ints is a helper that converts an array command reply to a []int.
// If err is not equal to nil, then Ints returns nil, err. Nil array
// items are stay nil. Ints returns an error if an array item is not a
// bulk string or nil.
func Ints(reply interface{}, err error) ([]int, error) {
var result []int
err = sliceHelper(reply, err, "Ints", func(n int) { result = make([]int, n) }, func(i int, v interface{}) error {
switch v := v.(type) {
case int64:
n := int(v)
if int64(n) != v {
return strconv.ErrRange
}
result[i] = n
return nil
case []byte:
n, err := strconv.Atoi(string(v))
result[i] = n
return err
case Error:
return v
default:
return fmt.Errorf("redigo: unexpected element type for Ints, got type %T", v)
}
})
return result, err
}
// mapHelper builds a map from the data in reply.
func mapHelper(reply interface{}, err error, name string, makeMap func(int), assign func(key string, value interface{}) error) error {
values, err := Values(reply, err)
if err != nil {
return err
}
if len(values)%2 != 0 {
return fmt.Errorf("redigo: %s expects even number of values result, got %d", name, len(values))
}
makeMap(len(values) / 2)
for i := 0; i < len(values); i += 2 {
key, ok := values[i].([]byte)
if !ok {
return fmt.Errorf("redigo: %s key[%d] not a bulk string value, got %T", name, i, values[i])
}
if err := assign(string(key), values[i+1]); err != nil {
return err
}
}
return nil
}
// StringMap is a helper that converts an array of strings (alternating key, value)
// into a map[string]string. The HGETALL and CONFIG GET commands return replies in this format.
// Requires an even number of values in result.
func StringMap(reply interface{}, err error) (map[string]string, error) {
var result map[string]string
err = mapHelper(reply, err, "StringMap",
func(n int) {
result = make(map[string]string, n)
}, func(key string, v interface{}) error {
value, ok := v.([]byte)
if !ok {
return fmt.Errorf("redigo: StringMap for %q not a bulk string value, got %T", key, v)
}
result[key] = string(value)
return nil
},
)
return result, err
}
// IntMap is a helper that converts an array of strings (alternating key, value)
// into a map[string]int. The HGETALL commands return replies in this format.
// Requires an even number of values in result.
func IntMap(result interface{}, err error) (map[string]int, error) {
var m map[string]int
err = mapHelper(result, err, "IntMap",
func(n int) {
m = make(map[string]int, n)
}, func(key string, v interface{}) error {
value, err := Int(v, nil)
if err != nil {
return err
}
m[key] = value
return nil
},
)
return m, err
}
// Int64Map is a helper that converts an array of strings (alternating key, value)
// into a map[string]int64. The HGETALL commands return replies in this format.
// Requires an even number of values in result.
func Int64Map(result interface{}, err error) (map[string]int64, error) {
var m map[string]int64
err = mapHelper(result, err, "Int64Map",
func(n int) {
m = make(map[string]int64, n)
}, func(key string, v interface{}) error {
value, err := Int64(v, nil)
if err != nil {
return err
}
m[key] = value
return nil
},
)
return m, err
}
// Float64Map is a helper that converts an array of strings (alternating key, value)
// into a map[string]float64. The HGETALL commands return replies in this format.
// Requires an even number of values in result.
func Float64Map(result interface{}, err error) (map[string]float64, error) {
var m map[string]float64
err = mapHelper(result, err, "Float64Map",
func(n int) {
m = make(map[string]float64, n)
}, func(key string, v interface{}) error {
value, err := Float64(v, nil)
if err != nil {
return err
}
m[key] = value
return nil
},
)
return m, err
}
// Positions is a helper that converts an array of positions (lat, long)
// into a [][2]float64. The GEOPOS command returns replies in this format.
func Positions(result interface{}, err error) ([]*[2]float64, error) {
values, err := Values(result, err)
if err != nil {
return nil, err
}
positions := make([]*[2]float64, len(values))
for i := range values {
if values[i] == nil {
continue
}
p, ok := values[i].([]interface{})
if !ok {
return nil, fmt.Errorf("redigo: unexpected element type for interface slice, got type %T", values[i])
}
if len(p) != 2 {
return nil, fmt.Errorf("redigo: unexpected number of values for a member position, got %d", len(p))
}
lat, err := Float64(p[0], nil)
if err != nil {
return nil, err
}
long, err := Float64(p[1], nil)
if err != nil {
return nil, err
}
positions[i] = &[2]float64{lat, long}
}
return positions, nil
}
// Uint64s is a helper that converts an array command reply to a []uint64.
// If err is not equal to nil, then Uint64s returns nil, err. Nil array
// items are stay nil. Uint64s returns an error if an array item is not a
// bulk string or nil.
func Uint64s(reply interface{}, err error) ([]uint64, error) {
var result []uint64
err = sliceHelper(reply, err, "Uint64s", func(n int) { result = make([]uint64, n) }, func(i int, v interface{}) error {
switch v := v.(type) {
case uint64:
result[i] = v
return nil
case []byte:
n, err := strconv.ParseUint(string(v), 10, 64)
result[i] = n
return err
case Error:
return v
default:
return fmt.Errorf("redigo: unexpected element type for Uint64s, got type %T", v)
}
})
return result, err
}
// Uint64Map is a helper that converts an array of strings (alternating key, value)
// into a map[string]uint64. The HGETALL commands return replies in this format.
// Requires an even number of values in result.
func Uint64Map(result interface{}, err error) (map[string]uint64, error) {
var m map[string]uint64
err = mapHelper(result, err, "Uint64Map",
func(n int) {
m = make(map[string]uint64, n)
}, func(key string, v interface{}) error {
value, err := Uint64(v, nil)
if err != nil {
return err
}
m[key] = value
return nil
},
)
return m, err
}
// SlowLogs is a helper that parse the SLOWLOG GET command output and
// return the array of SlowLog
func SlowLogs(result interface{}, err error) ([]SlowLog, error) {
rawLogs, err := Values(result, err)
if err != nil {
return nil, err
}
logs := make([]SlowLog, len(rawLogs))
for i, e := range rawLogs {
rawLog, ok := e.([]interface{})
if !ok {
return nil, fmt.Errorf("redigo: slowlog element is not an array, got %T", e)
}
var log SlowLog
if len(rawLog) < 4 {
return nil, fmt.Errorf("redigo: slowlog element has %d elements, expected at least 4", len(rawLog))
}
log.ID, ok = rawLog[0].(int64)
if !ok {
return nil, fmt.Errorf("redigo: slowlog element[0] not an int64, got %T", rawLog[0])
}
timestamp, ok := rawLog[1].(int64)
if !ok {
return nil, fmt.Errorf("redigo: slowlog element[1] not an int64, got %T", rawLog[1])
}
log.Time = time.Unix(timestamp, 0)
duration, ok := rawLog[2].(int64)
if !ok {
return nil, fmt.Errorf("redigo: slowlog element[2] not an int64, got %T", rawLog[2])
}
log.ExecutionTime = time.Duration(duration) * time.Microsecond
log.Args, err = Strings(rawLog[3], nil)
if err != nil {
return nil, fmt.Errorf("redigo: slowlog element[3] is not array of strings: %w", err)
}
if len(rawLog) >= 6 {
log.ClientAddr, err = String(rawLog[4], nil)
if err != nil {
return nil, fmt.Errorf("redigo: slowlog element[4] is not a string: %w", err)
}
log.ClientName, err = String(rawLog[5], nil)
if err != nil {
return nil, fmt.Errorf("redigo: slowlog element[5] is not a string: %w", err)
}
}
logs[i] = log
}
return logs, nil
}
// Latencies is a helper that parses the LATENCY LATEST command output and
// return the slice of Latency values.
func Latencies(result interface{}, err error) ([]Latency, error) {
rawLatencies, err := Values(result, err)
if err != nil {
return nil, err
}
latencies := make([]Latency, len(rawLatencies))
for i, e := range rawLatencies {
rawLatency, ok := e.([]interface{})
if !ok {
return nil, fmt.Errorf("redigo: latencies element is not slice, got %T", e)
}
var event Latency
if len(rawLatency) != 4 {
return nil, fmt.Errorf("redigo: latencies element has %d elements, expected 4", len(rawLatency))
}
event.Name, err = String(rawLatency[0], nil)
if err != nil {
return nil, fmt.Errorf("redigo: latencies element[0] is not a string: %w", err)
}
timestamp, ok := rawLatency[1].(int64)
if !ok {
return nil, fmt.Errorf("redigo: latencies element[1] not an int64, got %T", rawLatency[1])
}
event.Time = time.Unix(timestamp, 0)
latestDuration, ok := rawLatency[2].(int64)
if !ok {
return nil, fmt.Errorf("redigo: latencies element[2] not an int64, got %T", rawLatency[2])
}
event.Latest = time.Duration(latestDuration) * time.Millisecond
maxDuration, ok := rawLatency[3].(int64)
if !ok {
return nil, fmt.Errorf("redigo: latencies element[3] not an int64, got %T", rawLatency[3])
}
event.Max = time.Duration(maxDuration) * time.Millisecond
latencies[i] = event
}
return latencies, nil
}
// LatencyHistories is a helper that parse the LATENCY HISTORY command output and
// returns a LatencyHistory slice.
func LatencyHistories(result interface{}, err error) ([]LatencyHistory, error) {
rawLogs, err := Values(result, err)
if err != nil {
return nil, err
}
latencyHistories := make([]LatencyHistory, len(rawLogs))
for i, e := range rawLogs {
rawLog, ok := e.([]interface{})
if !ok {
return nil, fmt.Errorf("redigo: latency history element is not an slice, got %T", e)
}
var event LatencyHistory
timestamp, ok := rawLog[0].(int64)
if !ok {
return nil, fmt.Errorf("redigo: latency history element[0] not an int64, got %T", rawLog[0])
}
event.Time = time.Unix(timestamp, 0)
duration, ok := rawLog[1].(int64)
if !ok {
return nil, fmt.Errorf("redigo: latency history element[1] not an int64, got %T", rawLog[1])
}
event.ExecutionTime = time.Duration(duration) * time.Millisecond
latencyHistories[i] = event
}
return latencyHistories, nil
}
vendor/github.com/gomodule/redigo/redis/scan.go
Generated Vendored
-716
View File
@@ -1,716 +0,0 @@
// Copyright 2012 Gary Burd
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
package redis
import (
"errors"
"fmt"
"reflect"
"strconv"
"strings"
"sync"
)
var (
scannerType = reflect.TypeOf((*Scanner)(nil)).Elem()
)
func ensureLen(d reflect.Value, n int) {
if n > d.Cap() {
d.Set(reflect.MakeSlice(d.Type(), n, n))
} else {
d.SetLen(n)
}
}
func cannotConvert(d reflect.Value, s interface{}) error {
var sname string
switch s.(type) {
case string:
sname = "Redis simple string"
case Error:
sname = "Redis error"
case int64:
sname = "Redis integer"
case []byte:
sname = "Redis bulk string"
case []interface{}:
sname = "Redis array"
case nil:
sname = "Redis nil"
default:
sname = reflect.TypeOf(s).String()
}
return fmt.Errorf("cannot convert from %s to %s", sname, d.Type())
}
func convertAssignNil(d reflect.Value) (err error) {
switch d.Type().Kind() {
case reflect.Slice, reflect.Interface:
d.Set(reflect.Zero(d.Type()))
default:
err = cannotConvert(d, nil)
}
return err
}
func convertAssignError(d reflect.Value, s Error) (err error) {
if d.Kind() == reflect.String {
d.SetString(string(s))
} else if d.Kind() == reflect.Slice && d.Type().Elem().Kind() == reflect.Uint8 {
d.SetBytes([]byte(s))
} else {
err = cannotConvert(d, s)
}
return
}
func convertAssignString(d reflect.Value, s string) (err error) {
switch d.Type().Kind() {
case reflect.Float32, reflect.Float64:
var x float64
x, err = strconv.ParseFloat(s, d.Type().Bits())
d.SetFloat(x)
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
var x int64
x, err = strconv.ParseInt(s, 10, d.Type().Bits())
d.SetInt(x)
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
var x uint64
x, err = strconv.ParseUint(s, 10, d.Type().Bits())
d.SetUint(x)
case reflect.Bool:
var x bool
x, err = strconv.ParseBool(s)
d.SetBool(x)
case reflect.String:
d.SetString(s)
case reflect.Slice:
if d.Type().Elem().Kind() == reflect.Uint8 {
d.SetBytes([]byte(s))
} else {
err = cannotConvert(d, s)
}
case reflect.Ptr:
err = convertAssignString(d.Elem(), s)
default:
err = cannotConvert(d, s)
}
return
}
func convertAssignBulkString(d reflect.Value, s []byte) (err error) {
switch d.Type().Kind() {
case reflect.Slice:
// Handle []byte destination here to avoid unnecessary
// []byte -> string -> []byte converion.
if d.Type().Elem().Kind() == reflect.Uint8 {
d.SetBytes(s)
} else {
err = cannotConvert(d, s)
}
case reflect.Ptr:
if d.CanInterface() && d.CanSet() {
if s == nil {
if d.IsNil() {
return nil
}
d.Set(reflect.Zero(d.Type()))
return nil
}
if d.IsNil() {
d.Set(reflect.New(d.Type().Elem()))
}
if sc, ok := d.Interface().(Scanner); ok {
return sc.RedisScan(s)
}
}
err = convertAssignString(d, string(s))
default:
err = convertAssignString(d, string(s))
}
return err
}
func convertAssignInt(d reflect.Value, s int64) (err error) {
switch d.Type().Kind() {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
d.SetInt(s)
if d.Int() != s {
err = strconv.ErrRange
d.SetInt(0)
}
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
if s < 0 {
err = strconv.ErrRange
} else {
x := uint64(s)
d.SetUint(x)
if d.Uint() != x {
err = strconv.ErrRange
d.SetUint(0)
}
}
case reflect.Bool:
d.SetBool(s != 0)
default:
err = cannotConvert(d, s)
}
return
}
func convertAssignValue(d reflect.Value, s interface{}) (err error) {
if d.Kind() != reflect.Ptr {
if d.CanAddr() {
d2 := d.Addr()
if d2.CanInterface() {
if scanner, ok := d2.Interface().(Scanner); ok {
return scanner.RedisScan(s)
}
}
}
} else if d.CanInterface() {
// Already a reflect.Ptr
if d.IsNil() {
d.Set(reflect.New(d.Type().Elem()))
}
if scanner, ok := d.Interface().(Scanner); ok {
return scanner.RedisScan(s)
}
}
switch s := s.(type) {
case nil:
err = convertAssignNil(d)
case []byte:
err = convertAssignBulkString(d, s)
case int64:
err = convertAssignInt(d, s)
case string:
err = convertAssignString(d, s)
case Error:
err = convertAssignError(d, s)
default:
err = cannotConvert(d, s)
}
return err
}
func convertAssignArray(d reflect.Value, s []interface{}) error {
if d.Type().Kind() != reflect.Slice {
return cannotConvert(d, s)
}
ensureLen(d, len(s))
for i := 0; i < len(s); i++ {
if err := convertAssignValue(d.Index(i), s[i]); err != nil {
return err
}
}
return nil
}
func convertAssign(d interface{}, s interface{}) (err error) {
if scanner, ok := d.(Scanner); ok {
return scanner.RedisScan(s)
}
// Handle the most common destination types using type switches and
// fall back to reflection for all other types.
switch s := s.(type) {
case nil:
// ignore
case []byte:
switch d := d.(type) {
case *string:
*d = string(s)
case *int:
*d, err = strconv.Atoi(string(s))
case *bool:
*d, err = strconv.ParseBool(string(s))
case *[]byte:
*d = s
case *interface{}:
*d = s
case nil:
// skip value
default:
if d := reflect.ValueOf(d); d.Type().Kind() != reflect.Ptr {
err = cannotConvert(d, s)
} else {
err = convertAssignBulkString(d.Elem(), s)
}
}
case int64:
switch d := d.(type) {
case *int:
x := int(s)
if int64(x) != s {
err = strconv.ErrRange
x = 0
}
*d = x
case *bool:
*d = s != 0
case *interface{}:
*d = s
case nil:
// skip value
default:
if d := reflect.ValueOf(d); d.Type().Kind() != reflect.Ptr {
err = cannotConvert(d, s)
} else {
err = convertAssignInt(d.Elem(), s)
}
}
case string:
switch d := d.(type) {
case *string:
*d = s
case *interface{}:
*d = s
case nil:
// skip value
default:
err = cannotConvert(reflect.ValueOf(d), s)
}
case []interface{}:
switch d := d.(type) {
case *[]interface{}:
*d = s
case *interface{}:
*d = s
case nil:
// skip value
default:
if d := reflect.ValueOf(d); d.Type().Kind() != reflect.Ptr {
err = cannotConvert(d, s)
} else {
err = convertAssignArray(d.Elem(), s)
}
}
case Error:
err = s
default:
err = cannotConvert(reflect.ValueOf(d), s)
}
return
}
// Scan copies from src to the values pointed at by dest.
//
// Scan uses RedisScan if available otherwise:
//
// The values pointed at by dest must be an integer, float, boolean, string,
// []byte, interface{} or slices of these types. Scan uses the standard strconv
// package to convert bulk strings to numeric and boolean types.
//
// If a dest value is nil, then the corresponding src value is skipped.
//
// If a src element is nil, then the corresponding dest value is not modified.
//
// To enable easy use of Scan in a loop, Scan returns the slice of src
// following the copied values.
func Scan(src []interface{}, dest ...interface{}) ([]interface{}, error) {
if len(src) < len(dest) {
return nil, errors.New("redigo.Scan: array short")
}
var err error
for i, d := range dest {
err = convertAssign(d, src[i])
if err != nil {
err = fmt.Errorf("redigo.Scan: cannot assign to dest %d: %v", i, err)
break
}
}
return src[len(dest):], err
}
type fieldSpec struct {
name string
index []int
omitEmpty bool
}
type structSpec struct {
m map[string]*fieldSpec
l []*fieldSpec
}
func (ss *structSpec) fieldSpec(name []byte) *fieldSpec {
return ss.m[string(name)]
}
func compileStructSpec(t reflect.Type, depth map[string]int, index []int, ss *structSpec, seen map[reflect.Type]struct{}) error {
if _, ok := seen[t]; ok {
// Protect against infinite recursion.
return fmt.Errorf("recursive struct definition for %v", t)
}
seen[t] = struct{}{}
LOOP:
for i := 0; i < t.NumField(); i++ {
f := t.Field(i)
switch {
case f.PkgPath != "" && !f.Anonymous:
// Ignore unexported fields.
case f.Anonymous:
switch f.Type.Kind() {
case reflect.Struct:
if err := compileStructSpec(f.Type, depth, append(index, i), ss, seen); err != nil {
return err
}
case reflect.Ptr:
if f.Type.Elem().Kind() == reflect.Struct {
if err := compileStructSpec(f.Type.Elem(), depth, append(index, i), ss, seen); err != nil {
return err
}
}
}
default:
fs := &fieldSpec{name: f.Name}
tag := f.Tag.Get("redis")
var p string
first := true
for len(tag) > 0 {
i := strings.IndexByte(tag, ',')
if i < 0 {
p, tag = tag, ""
} else {
p, tag = tag[:i], tag[i+1:]
}
if p == "-" {
continue LOOP
}
if first && len(p) > 0 {
fs.name = p
first = false
} else {
switch p {
case "omitempty":
fs.omitEmpty = true
default:
panic(fmt.Errorf("redigo: unknown field tag %s for type %s", p, t.Name()))
}
}
}
d, found := depth[fs.name]
if !found {
d = 1 << 30
}
switch {
case len(index) == d:
// At same depth, remove from result.
delete(ss.m, fs.name)
j := 0
for i := 0; i < len(ss.l); i++ {
if fs.name != ss.l[i].name {
ss.l[j] = ss.l[i]
j += 1
}
}
ss.l = ss.l[:j]
case len(index) < d:
fs.index = make([]int, len(index)+1)
copy(fs.index, index)
fs.index[len(index)] = i
depth[fs.name] = len(index)
ss.m[fs.name] = fs
ss.l = append(ss.l, fs)
}
}
}
return nil
}
var (
structSpecMutex sync.RWMutex
structSpecCache = make(map[reflect.Type]*structSpec)
)
func structSpecForType(t reflect.Type) (*structSpec, error) {
structSpecMutex.RLock()
ss, found := structSpecCache[t]
structSpecMutex.RUnlock()
if found {
return ss, nil
}
structSpecMutex.Lock()
defer structSpecMutex.Unlock()
ss, found = structSpecCache[t]
if found {
return ss, nil
}
ss = &structSpec{m: make(map[string]*fieldSpec)}
if err := compileStructSpec(t, make(map[string]int), nil, ss, make(map[reflect.Type]struct{})); err != nil {
return nil, fmt.Errorf("compile struct: %s: %w", t, err)
}
structSpecCache[t] = ss
return ss, nil
}
var errScanStructValue = errors.New("redigo.ScanStruct: value must be non-nil pointer to a struct")
// ScanStruct scans alternating names and values from src to a struct. The
// HGETALL and CONFIG GET commands return replies in this format.
//
// ScanStruct uses exported field names to match values in the response. Use
// 'redis' field tag to override the name:
//
// Field int `redis:"myName"`
//
// Fields with the tag redis:"-" are ignored.
//
// Each field uses RedisScan if available otherwise:
// Integer, float, boolean, string and []byte fields are supported. Scan uses the
// standard strconv package to convert bulk string values to numeric and
// boolean types.
//
// If a src element is nil, then the corresponding field is not modified.
func ScanStruct(src []interface{}, dest interface{}) error {
d := reflect.ValueOf(dest)
if d.Kind() != reflect.Ptr || d.IsNil() {
return errScanStructValue
}
d = d.Elem()
if d.Kind() != reflect.Struct {
return errScanStructValue
}
if len(src)%2 != 0 {
return errors.New("redigo.ScanStruct: number of values not a multiple of 2")
}
ss, err := structSpecForType(d.Type())
if err != nil {
return fmt.Errorf("redigo.ScanStruct: %w", err)
}
for i := 0; i < len(src); i += 2 {
s := src[i+1]
if s == nil {
continue
}
name, ok := src[i].([]byte)
if !ok {
return fmt.Errorf("redigo.ScanStruct: key %d not a bulk string value", i)
}
fs := ss.fieldSpec(name)
if fs == nil {
continue
}
if err := convertAssignValue(fieldByIndexCreate(d, fs.index), s); err != nil {
return fmt.Errorf("redigo.ScanStruct: cannot assign field %s: %v", fs.name, err)
}
}
return nil
}
var (
errScanSliceValue = errors.New("redigo.ScanSlice: dest must be non-nil pointer to a struct")
)
// ScanSlice scans src to the slice pointed to by dest.
//
// If the target is a slice of types which implement Scanner then the custom
// RedisScan method is used otherwise the following rules apply:
//
// The elements in the dest slice must be integer, float, boolean, string, struct
// or pointer to struct values.
//
// Struct fields must be integer, float, boolean or string values. All struct
// fields are used unless a subset is specified using fieldNames.
func ScanSlice(src []interface{}, dest interface{}, fieldNames ...string) error {
d := reflect.ValueOf(dest)
if d.Kind() != reflect.Ptr || d.IsNil() {
return errScanSliceValue
}
d = d.Elem()
if d.Kind() != reflect.Slice {
return errScanSliceValue
}
isPtr := false
t := d.Type().Elem()
st := t
if t.Kind() == reflect.Ptr && t.Elem().Kind() == reflect.Struct {
isPtr = true
t = t.Elem()
}
if t.Kind() != reflect.Struct || st.Implements(scannerType) {
ensureLen(d, len(src))
for i, s := range src {
if s == nil {
continue
}
if err := convertAssignValue(d.Index(i), s); err != nil {
return fmt.Errorf("redigo.ScanSlice: cannot assign element %d: %v", i, err)
}
}
return nil
}
ss, err := structSpecForType(t)
if err != nil {
return fmt.Errorf("redigo.ScanSlice: %w", err)
}
fss := ss.l
if len(fieldNames) > 0 {
fss = make([]*fieldSpec, len(fieldNames))
for i, name := range fieldNames {
fss[i] = ss.m[name]
if fss[i] == nil {
return fmt.Errorf("redigo.ScanSlice: ScanSlice bad field name %s", name)
}
}
}
if len(fss) == 0 {
return errors.New("redigo.ScanSlice: no struct fields")
}
n := len(src) / len(fss)
if n*len(fss) != len(src) {
return errors.New("redigo.ScanSlice: length not a multiple of struct field count")
}
ensureLen(d, n)
for i := 0; i < n; i++ {
d := d.Index(i)
if isPtr {
if d.IsNil() {
d.Set(reflect.New(t))
}
d = d.Elem()
}
for j, fs := range fss {
s := src[i*len(fss)+j]
if s == nil {
continue
}
if err := convertAssignValue(d.FieldByIndex(fs.index), s); err != nil {
return fmt.Errorf("redigo.ScanSlice: cannot assign element %d to field %s: %v", i*len(fss)+j, fs.name, err)
}
}
}
return nil
}
// Args is a helper for constructing command arguments from structured values.
type Args []interface{}
// Add returns the result of appending value to args.
func (args Args) Add(value ...interface{}) Args {
return append(args, value...)
}
// AddFlat returns the result of appending the flattened value of v to args.
//
// Maps are flattened by appending the alternating keys and map values to args.
//
// Slices are flattened by appending the slice elements to args.
//
// Structs are flattened by appending the alternating names and values of
// exported fields to args. If v is a nil struct pointer, then nothing is
// appended. The 'redis' field tag overrides struct field names. See ScanStruct
// for more information on the use of the 'redis' field tag.
//
// Other types are appended to args as is.
// panics if v includes a recursive anonymous struct.
func (args Args) AddFlat(v interface{}) Args {
rv := reflect.ValueOf(v)
switch rv.Kind() {
case reflect.Struct:
args = flattenStruct(args, rv)
case reflect.Slice:
for i := 0; i < rv.Len(); i++ {
args = append(args, rv.Index(i).Interface())
}
case reflect.Map:
for _, k := range rv.MapKeys() {
args = append(args, k.Interface(), rv.MapIndex(k).Interface())
}
case reflect.Ptr:
if rv.Type().Elem().Kind() == reflect.Struct {
if !rv.IsNil() {
args = flattenStruct(args, rv.Elem())
}
} else {
args = append(args, v)
}
default:
args = append(args, v)
}
return args
}
func flattenStruct(args Args, v reflect.Value) Args {
ss, err := structSpecForType(v.Type())
if err != nil {
panic(fmt.Errorf("redigo.AddFlat: %w", err))
}
for _, fs := range ss.l {
fv, err := fieldByIndexErr(v, fs.index)
if err != nil {
// Nil item ignore.
continue
}
if fs.omitEmpty {
var empty = false
switch fv.Kind() {
case reflect.Array, reflect.Map, reflect.Slice, reflect.String:
empty = fv.Len() == 0
case reflect.Bool:
empty = !fv.Bool()
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
empty = fv.Int() == 0
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
empty = fv.Uint() == 0
case reflect.Float32, reflect.Float64:
empty = fv.Float() == 0
case reflect.Interface, reflect.Ptr:
empty = fv.IsNil()
}
if empty {
continue
}
}
if arg, ok := fv.Interface().(Argument); ok {
args = append(args, fs.name, arg.RedisArg())
} else if fv.Kind() == reflect.Ptr {
if !fv.IsNil() {
args = append(args, fs.name, fv.Elem().Interface())
}
} else {
args = append(args, fs.name, fv.Interface())
}
}
return args
}
vendor/github.com/gomodule/redigo/redis/script.go
Generated Vendored
-104
View File
@@ -1,104 +0,0 @@
// Copyright 2012 Gary Burd
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
package redis
import (
"context"
"crypto/sha1"
"encoding/hex"
"io"
"strings"
)
// Script encapsulates the source, hash and key count for a Lua script. See
// http://redis.io/commands/eval for information on scripts in Redis.
type Script struct {
keyCount int
src string
hash string
}
// NewScript returns a new script object. If keyCount is greater than or equal
// to zero, then the count is automatically inserted in the EVAL command
// argument list. If keyCount is less than zero, then the application supplies
// the count as the first value in the keysAndArgs argument to the Do, Send and
// SendHash methods.
func NewScript(keyCount int, src string) *Script {
h := sha1.New()
io.WriteString(h, src) // nolint: errcheck
return &Script{keyCount, src, hex.EncodeToString(h.Sum(nil))}
}
func (s *Script) args(spec string, keysAndArgs []interface{}) []interface{} {
var args []interface{}
if s.keyCount < 0 {
args = make([]interface{}, 1+len(keysAndArgs))
args[0] = spec
copy(args[1:], keysAndArgs)
} else {
args = make([]interface{}, 2+len(keysAndArgs))
args[0] = spec
args[1] = s.keyCount
copy(args[2:], keysAndArgs)
}
return args
}
// Hash returns the script hash.
func (s *Script) Hash() string {
return s.hash
}
func (s *Script) DoContext(ctx context.Context, c Conn, keysAndArgs ...interface{}) (interface{}, error) {
cwt, ok := c.(ConnWithContext)
if !ok {
return nil, errContextNotSupported
}
v, err := cwt.DoContext(ctx, "EVALSHA", s.args(s.hash, keysAndArgs)...)
if e, ok := err.(Error); ok && strings.HasPrefix(string(e), "NOSCRIPT ") {
v, err = cwt.DoContext(ctx, "EVAL", s.args(s.src, keysAndArgs)...)
}
return v, err
}
// Do evaluates the script. Under the covers, Do optimistically evaluates the
// script using the EVALSHA command. If the command fails because the script is
// not loaded, then Do evaluates the script using the EVAL command (thus
// causing the script to load).
func (s *Script) Do(c Conn, keysAndArgs ...interface{}) (interface{}, error) {
v, err := c.Do("EVALSHA", s.args(s.hash, keysAndArgs)...)
if err != nil && strings.HasPrefix(err.Error(), "NOSCRIPT ") {
v, err = c.Do("EVAL", s.args(s.src, keysAndArgs)...)
}
return v, err
}
// SendHash evaluates the script without waiting for the reply. The script is
// evaluated with the EVALSHA command. The application must ensure that the
// script is loaded by a previous call to Send, Do or Load methods.
func (s *Script) SendHash(c Conn, keysAndArgs ...interface{}) error {
return c.Send("EVALSHA", s.args(s.hash, keysAndArgs)...)
}
// Send evaluates the script without waiting for the reply.
func (s *Script) Send(c Conn, keysAndArgs ...interface{}) error {
return c.Send("EVAL", s.args(s.src, keysAndArgs)...)
}
// Load loads the script without evaluating it.
func (s *Script) Load(c Conn) error {
_, err := c.Do("SCRIPT", "LOAD", s.src)
return err
}
vendor/modules.txt
Vendored
+95 -3
View File
@@ -1,6 +1,98 @@
# github.com/gomodule/redigo v1.8.9 # github.com/beorn7/perks v1.0.1
## explicit; go 1.16 ## explicit; go 1.11
github.com/gomodule/redigo/redis github.com/beorn7/perks/quantile
# github.com/cespare/xxhash/v2 v2.1.2
## explicit; go 1.11
github.com/cespare/xxhash/v2
# github.com/coreos/go-semver v0.3.0
## explicit
github.com/coreos/go-semver/semver
# github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f
## explicit
github.com/dgryski/go-rendezvous
# github.com/go-redis/redis/v8 v8.11.5
## explicit; go 1.17
github.com/go-redis/redis/v8
github.com/go-redis/redis/v8/internal
github.com/go-redis/redis/v8/internal/hashtag
github.com/go-redis/redis/v8/internal/hscan
github.com/go-redis/redis/v8/internal/pool
github.com/go-redis/redis/v8/internal/proto
github.com/go-redis/redis/v8/internal/rand
github.com/go-redis/redis/v8/internal/util
# github.com/golang/protobuf v1.5.0
## explicit; go 1.9
github.com/golang/protobuf/proto
github.com/golang/protobuf/ptypes
github.com/golang/protobuf/ptypes/any
github.com/golang/protobuf/ptypes/duration
github.com/golang/protobuf/ptypes/timestamp
# github.com/leprosus/golang-ttl-map v1.1.7 # github.com/leprosus/golang-ttl-map v1.1.7
## explicit; go 1.15 ## explicit; go 1.15
github.com/leprosus/golang-ttl-map github.com/leprosus/golang-ttl-map
# github.com/matttproud/golang_protobuf_extensions v1.0.1
## explicit
github.com/matttproud/golang_protobuf_extensions/pbutil
# github.com/prometheus/client_golang v1.11.0
## explicit; go 1.13
github.com/prometheus/client_golang/prometheus
github.com/prometheus/client_golang/prometheus/internal
# github.com/prometheus/client_model v0.2.0
## explicit; go 1.9
github.com/prometheus/client_model/go
# github.com/prometheus/common v0.26.0
## explicit; go 1.11
github.com/prometheus/common/expfmt
github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg
github.com/prometheus/common/model
# github.com/prometheus/procfs v0.6.0
## explicit; go 1.13
github.com/prometheus/procfs
github.com/prometheus/procfs/internal/fs
github.com/prometheus/procfs/internal/util
# github.com/sandwich-go/redisson v1.1.16
## explicit; go 1.18
github.com/sandwich-go/redisson
# github.com/sandwich-go/rueidis v0.1.11
## explicit; go 1.18
github.com/sandwich-go/rueidis
github.com/sandwich-go/rueidis/internal/cmds
github.com/sandwich-go/rueidis/internal/util
github.com/sandwich-go/rueidis/rueidiscompat
# golang.org/x/sys v0.0.0-20220731174439-a90be440212d
## explicit; go 1.17
golang.org/x/sys/internal/unsafeheader
golang.org/x/sys/unix
golang.org/x/sys/windows
# google.golang.org/protobuf v1.27.1
## explicit; go 1.9
google.golang.org/protobuf/encoding/prototext
google.golang.org/protobuf/encoding/protowire
google.golang.org/protobuf/internal/descfmt
google.golang.org/protobuf/internal/descopts
google.golang.org/protobuf/internal/detrand
google.golang.org/protobuf/internal/encoding/defval
google.golang.org/protobuf/internal/encoding/messageset
google.golang.org/protobuf/internal/encoding/tag
google.golang.org/protobuf/internal/encoding/text
google.golang.org/protobuf/internal/errors
google.golang.org/protobuf/internal/filedesc
google.golang.org/protobuf/internal/filetype
google.golang.org/protobuf/internal/flags
google.golang.org/protobuf/internal/genid
google.golang.org/protobuf/internal/impl
google.golang.org/protobuf/internal/order
google.golang.org/protobuf/internal/pragma
google.golang.org/protobuf/internal/set
google.golang.org/protobuf/internal/strs
google.golang.org/protobuf/internal/version
google.golang.org/protobuf/proto
google.golang.org/protobuf/reflect/protodesc
google.golang.org/protobuf/reflect/protoreflect
google.golang.org/protobuf/reflect/protoregistry
google.golang.org/protobuf/runtime/protoiface
google.golang.org/protobuf/runtime/protoimpl
google.golang.org/protobuf/types/descriptorpb
google.golang.org/protobuf/types/known/anypb
google.golang.org/protobuf/types/known/durationpb
google.golang.org/protobuf/types/known/timestamppb