fix: Invalid PHP-FPMs request uri encoding (#37)

* fix: hashids multiple-value context (#32)
* feat: Add method to fix invalid JSON content
* chore: Add test for issue #24
* chore: Use golang modules
* fix: Set alias to satisfy gofmt

go.mod

@@ -1,46 +1,15 @@
 module github.com/hipages/php-fpm_exporter
 
 require (
-	github.com/BurntSushi/toml v0.3.1 // indirect
-	github.com/beorn7/perks v0.0.0-20160804104726-4c0e84591b9a // indirect
 	github.com/davecgh/go-spew v1.1.1
-	github.com/fsnotify/fsnotify v1.4.7 // indirect
-	github.com/golang/protobuf v1.2.0 // indirect
 	github.com/gosuri/uitable v0.0.0-20160404203958-36ee7e946282
-	github.com/hashicorp/hcl v0.0.0-20171017181929-23c074d0eceb // indirect
-	github.com/inconshreveable/mousetrap v1.0.0 // indirect
-	github.com/kr/pretty v0.1.0 // indirect
-	github.com/magiconair/properties v1.7.6 // indirect
-	github.com/mattn/go-runewidth v0.0.2 // indirect
-	github.com/matttproud/golang_protobuf_extensions v1.0.0 // indirect
-	github.com/mitchellh/go-homedir v0.0.0-20161203194507-b8bc1bf76747
-	github.com/mitchellh/mapstructure v0.0.0-20180220230111-00c29f56e238 // indirect
-	github.com/onsi/ginkgo v0.0.0-20170829012221-11459a886d9c // indirect
-	github.com/onsi/gomega v0.0.0-20170829124025-dcabb60a477c // indirect
-	github.com/pelletier/go-toml v1.1.0 // indirect
-	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/prometheus/client_golang v0.8.0
-	github.com/prometheus/client_model v0.0.0-20171117100541-99fa1f4be8e5 // indirect
-	github.com/prometheus/common v0.0.0-20180110214958-89604d197083 // indirect
-	github.com/prometheus/procfs v0.0.0-20180227095125-75f2d6163c7a // indirect
-	github.com/sirupsen/logrus v0.0.0-20180213143110-8c0189d9f6bb
-	github.com/speps/go-hashids v1.0.0
-	github.com/spf13/afero v1.0.2 // indirect
-	github.com/spf13/cast v1.2.0 // indirect
-	github.com/spf13/cobra v0.0.1
-	github.com/spf13/jwalterweatherman v0.0.0-20180109140146-7c0cea34c8ec // indirect
-	github.com/spf13/pflag v1.0.0 // indirect
-	github.com/spf13/viper v1.0.0
-	github.com/stretchr/objx v0.1.1 // indirect
-	github.com/stretchr/testify v1.2.2 // indirect
-	github.com/tomasen/fcgi_client v0.0.0-20171212193905-d32b71631a94
-	golang.org/x/crypto v0.0.0-20180227085843-8c653846df49 // indirect
-	golang.org/x/net v0.0.0-20170915142106-8351a756f30f // indirect
-	golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f // indirect
-	golang.org/x/sys v0.0.0-20180224232135-f6cff0780e54 // indirect
-	golang.org/x/text v0.3.0 // indirect
-	gopkg.in/airbrake/gobrake.v2 v2.0.9 // indirect
-	gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect
-	gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2 // indirect
-	gopkg.in/yaml.v2 v2.1.1 // indirect
+	github.com/mattn/go-runewidth v0.0.3 // indirect
+	github.com/mitchellh/go-homedir v1.0.0
+	github.com/prometheus/client_golang v0.9.2
+	github.com/sirupsen/logrus v1.2.0
+	github.com/speps/go-hashids v2.0.0+incompatible
+	github.com/spf13/cobra v0.0.3
+	github.com/spf13/viper v1.3.1
+	github.com/stretchr/testify v1.2.2
+	github.com/tomasen/fcgi_client v0.0.0-20180423082037-2bb3d819fd19
 )

go.sum

@@ -1,7 +1,9 @@
-github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
-github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/beorn7/perks v0.0.0-20160804104726-4c0e84591b9a h1:BtpsbiV638WQZwhA98cEZw2BsbnQJrbd0BI7tsy0W1c=
-github.com/beorn7/perks v0.0.0-20160804104726-4c0e84591b9a/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
+github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
+github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973 h1:xJ4a3vCFaGF/jqvzLMYoU8P317H5OQ+Via4RmuPwCS0=
+github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
+github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
+github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
+github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
@@ -10,79 +12,63 @@ github.com/golang/protobuf v1.2.0 h1:P3YflyNX/ehuJFLhxviNdFxQPkGK5cDcApsge1SqnvM
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/gosuri/uitable v0.0.0-20160404203958-36ee7e946282 h1:KFqmdzEPbU7Uck2tn50t+HQXZNVkxe8M9qRb/ZoSHaE=
 github.com/gosuri/uitable v0.0.0-20160404203958-36ee7e946282/go.mod h1:tKR86bXuXPZazfOTG1FIzvjIdXzd0mo4Vtn16vt0PJo=
-github.com/hashicorp/hcl v0.0.0-20171017181929-23c074d0eceb h1:1OvvPvZkn/yCQ3xBcM8y4020wdkMXPHLB4+NfoGWh4U=
-github.com/hashicorp/hcl v0.0.0-20171017181929-23c074d0eceb/go.mod h1:oZtUIOe8dh44I2q6ScRibXws4Ajl+d+nod3AaR9vL5w=
-github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
-github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
-github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
-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 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
-github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
-github.com/magiconair/properties v1.7.6 h1:U+1DqNen04MdEPgFiIwdOUiqZ8qPa37xgogX/sd3+54=
-github.com/magiconair/properties v1.7.6/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
-github.com/mattn/go-runewidth v0.0.2 h1:UnlwIPBGaTZfPQ6T1IGzPI0EkYAQmT9fAEJ/poFC63o=
-github.com/mattn/go-runewidth v0.0.2/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
-github.com/matttproud/golang_protobuf_extensions v1.0.0 h1:YNOwxxSJzSUARoD9KRZLzM9Y858MNGCOACTvCW9TSAc=
-github.com/matttproud/golang_protobuf_extensions v1.0.0/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
-github.com/mitchellh/go-homedir v0.0.0-20161203194507-b8bc1bf76747 h1:eQox4Rh4ewJF+mqYPxCkmBAirRnPaHEB26UkNuPyjlk=
-github.com/mitchellh/go-homedir v0.0.0-20161203194507-b8bc1bf76747/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
-github.com/mitchellh/mapstructure v0.0.0-20180220230111-00c29f56e238 h1:+MZW2uvHgN8kYvksEN3f7eFL2wpzk0GxmlFsMybWc7E=
-github.com/mitchellh/mapstructure v0.0.0-20180220230111-00c29f56e238/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
-github.com/onsi/ginkgo v0.0.0-20170829012221-11459a886d9c h1:Hww8mOyEKTeON4bZn7FrlLismspbPc1teNRUVH7wLQ8=
-github.com/onsi/ginkgo v0.0.0-20170829012221-11459a886d9c/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
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-github.com/pelletier/go-toml v1.1.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
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phpfpm/exporter.go

@@ -246,7 +246,7 @@ func calculateProcessHash(pp PoolProcess) string {
 	hd := hashids.NewData()
 	hd.Salt = "php-fpm_exporter"
 	hd.MinLength = 12
-	h := hashids.NewWithData(hd)
+	h, _ := hashids.NewWithData(hd)
 	e, _ := h.Encode([]int{int(pp.StartTime), int(pp.PID)})
 
 	return e

phpfpm/phpfpm.go

@@ -19,6 +19,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	"net/url"
+	"regexp"
 	"strconv"
 	"strings"
 	"sync"
@@ -179,9 +180,12 @@ func (p *Pool) Update() (err error) {
 		return p.error(err)
 	}
 
+	content = JSONResponseFixer(content)
+
 	log.Debugf("Pool[%v]: %v", p.Address, string(content))
 
 	if err = json.Unmarshal(content, &p); err != nil {
+		log.Errorf("Pool[%v]: %v", p.Address, string(content))
 		return p.error(err)
 	}
 
@@ -195,6 +199,24 @@ func (p *Pool) error(err error) error {
 	return err
 }
 
+// JSONResponseFixer resolves encoding issues with PHP-FPMs JSON response
+func JSONResponseFixer(content []byte) []byte {
+	c := string(content)
+	re := regexp.MustCompile(`(,"request uri":)"(.*?)"(,"content length":)`)
+	matches := re.FindAllStringSubmatch(c, -1)
+
+	for _, match := range matches {
+		requestURI, _ := json.Marshal(match[2])
+
+		sold := match[0]
+		snew := match[1] + string(requestURI) + match[3]
+
+		c = strings.Replace(c, sold, snew, -1)
+	}
+
+	return []byte(c)
+}
+
 // CountProcessState return the calculated metrics based on the reported processes.
 func CountProcessState(processes []PoolProcess) (active int64, idle int64, total int64) {
 	for idx := range processes {