circumvention: add the tor experiment (#100)

* go.mod go.sum: update all non-probe-engine deps

For each line in the go.mod, run `go get -u -v $package` if the
line is not an indirect dependency and is not probe-engine.

Upgrading probe-engine is going to require the same spell that
is used in probe-engine to update psiphon.

* go get -v github.com/ooni/probe-engine@v0.5.0

This just pins to the latest probe-engine but we've not manually
pinned all the other dependencieds yet.

Take care of the trivial API changes in probe-engine as well, such
that we can have a working build after this commit.

* go.mod go.sum: pin to probe-engine dependencies

Basically: remove all indirect dependencies. Merge this go.mod with
the one of probe-engine, to pin dependencies. Run `go mod tidy`.

* circumvention: add basic implementation of tor

This needs to be polished further, of course. But at least we have
now added support for running tor in the circumvention group.

* Readme.md: document how to update dependencies

* go get -v github.com/ooni/probe-engine@fcc9ee0a7afb

* go get -v github.com/ooni/probe-engine@4d254f5b2

* nettests/tor.go: implement summary test keys

Readme.md

@@ -31,6 +31,22 @@ Be sure you have golang >= 1.13. We use golang modules. Run
 to get information on the supported systems as well as to get
 instructions on how to install dependencies.
 
+## Updating dependencies
+
+1. update every direct dependency in `go.mod` except `probe-engine`
+using `go get -u -v $dependency`
+
+2. pin to the latest version of the `probe-engine` with
+`go get -v github.com/ooni/probe-engine@tag`
+
+3. remove all indirect dependencies from `go.mod` and merge the
+content of `probe-engine`'s `go.mod` into our `go.mod`
+
+4. `go mod tidy`
+
+The rationale of this procedure is that we want to pin exactly to
+a specific version of psiphon and of its dependencies.
+
 ## Releasing
 
 ```

go.mod

@@ -1,22 +1,17 @@
 module github.com/ooni/probe-cli
 
-go 1.12
+go 1.13
 
 require (
 	github.com/alecthomas/kingpin v2.2.6+incompatible
-	github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 // indirect
-	github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d // indirect
 	github.com/apex/log v1.1.1
-	github.com/certifi/gocertifi v0.0.0-20191021191039-0944d244cd40 // indirect
+	github.com/certifi/gocertifi v0.0.0-20200104152315-a6d78f326758 // indirect
-	github.com/fatih/color v1.7.0
+	github.com/fatih/color v1.9.0
 	github.com/getsentry/raven-go v0.0.0-20190419175539-919484f041ea
-	github.com/kr/pty v1.1.8 // indirect
 	github.com/mattn/go-colorable v0.1.4
-	github.com/mattn/go-isatty v0.0.11 // indirect
+	github.com/ooni/probe-engine v0.5.1-0.20200127201608-4d254f5b22b4
-	github.com/ooni/probe-engine v0.4.0
+	github.com/pkg/errors v0.9.1
-	github.com/pkg/errors v0.8.1
+	github.com/rubenv/sql-migrate v0.0.0-20200119084958-8794cecc920c
-	github.com/rubenv/sql-migrate v0.0.0-20191213152630-06338513c237
-	golang.org/x/sys v0.0.0-20191224085550-c709ea063b76 // indirect
 	gopkg.in/AlecAivazis/survey.v1 v1.8.7
 	gopkg.in/mgo.v2 v2.0.0-20190816093944-a6b53ec6cb22 // indirect
 	upper.io/db.v3 v3.6.3+incompatible

go.sum

@@ -1,7 +1,29 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-github.com/AndreasBriese/bbloom v0.0.0-20190306092124-e2d15f34fcf9 h1:HD8gA2tkByhMAwYaFAX9w2l7vxvBQ5NMoxDrkhqhtn4=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-github.com/AndreasBriese/bbloom v0.0.0-20190306092124-e2d15f34fcf9/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8=
+cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
+cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
+cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
+cloud.google.com/go v0.44.3/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
+cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
+cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
+cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
+cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
+cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
+cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
+cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
+cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
+cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
+cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos=
+dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
+git.schwanenlied.me/yawning/bsaes.git v0.0.0-20190320102049-26d1add596b6 h1:zOrl5/RvK48MxMrif6Z+/OpuYyRnvB+ZTrQWEV9VYb0=
+git.schwanenlied.me/yawning/bsaes.git v0.0.0-20190320102049-26d1add596b6/go.mod h1:BWqTsj8PgcPriQJGl7el20J/7TuT1d/hSyFDXMEpoEo=
+git.torproject.org/pluggable-transports/goptlib.git v1.0.0/go.mod h1:YT4XMSkuEXbtqlydr9+OxqFAyspUv0Gr9qhM3B++o/Q=
+git.torproject.org/pluggable-transports/goptlib.git v1.1.0 h1:LMQAA8pAho+QtYrrVNimJQiINNEwcwuuD99vezD/PAo=
+git.torproject.org/pluggable-transports/goptlib.git v1.1.0/go.mod h1:YT4XMSkuEXbtqlydr9+OxqFAyspUv0Gr9qhM3B++o/Q=
+github.com/AndreasBriese/bbloom v0.0.0-20170702084017-28f7e881ca57 h1:CVuXDbdzPW0XCNYTldy5dQues57geAs+vfwz3FTTpy8=
+github.com/AndreasBriese/bbloom v0.0.0-20170702084017-28f7e881ca57/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/DataDog/zstd v1.3.6-0.20190409195224-796139022798/go.mod h1:1jcaCB/ufaK+sKp1NBhlGmpz41jOoPQ35bpF36t7BBo=
 github.com/Netflix/go-expect v0.0.0-20180615182759-c93bf25de8e8 h1:xzYJEypr/85nBpB11F9br+3HUrpgb+fcm5iADzXXYEw=
 github.com/Netflix/go-expect v0.0.0-20180615182759-c93bf25de8e8/go.mod h1:oX5x61PbNXchhh0oikYAH+4Pcfw5LKv21+Jnpr6r6Pc=
@@ -17,34 +39,39 @@ github.com/Psiphon-Labs/goptlib v0.0.0-20180426172440-18963be5f9c5 h1:j/XkyeIrn1
 github.com/Psiphon-Labs/goptlib v0.0.0-20180426172440-18963be5f9c5/go.mod h1:Pe5BqN2DdIdChorAXl6bDaQd/wghpCleJfid2NoSli0=
 github.com/Psiphon-Labs/net v0.0.0-20191204183604-f5d60dada742 h1:te4lDZfA3tFwaheo+h/GZYGiLGJvm7Dcq2YkFh13QmE=
 github.com/Psiphon-Labs/net v0.0.0-20191204183604-f5d60dada742/go.mod h1:3mBCrUrPxFCKAhG0ZdEfiU7QU6zl2+gr1HUk1sKYdjI=
-github.com/Psiphon-Labs/psiphon-tunnel-core v2.0.10-0.20191118182123-b319ae807616+incompatible h1:MJ8/Oh0xEcxOHPIJ3SJlycScgWre40oz2BbnRrk8dsg=
+github.com/Psiphon-Labs/psiphon-tunnel-core v2.0.10-0.20200122032119-5e7e7f3eddd2+incompatible h1:aOG3DD26FWCtmrqHcCp3vwzZf93gsNk/WOuzH2tCiGI=
-github.com/Psiphon-Labs/psiphon-tunnel-core v2.0.10-0.20191118182123-b319ae807616+incompatible/go.mod h1:VcNEtiQ0z2sCGJf16ZGcpwCas5+r9rt+P20r6LlJ06U=
+github.com/Psiphon-Labs/psiphon-tunnel-core v2.0.10-0.20200122032119-5e7e7f3eddd2+incompatible/go.mod h1:VcNEtiQ0z2sCGJf16ZGcpwCas5+r9rt+P20r6LlJ06U=
-github.com/Psiphon-Labs/tls-tris v0.0.0-20190321174524-b5083341bf6c h1:zTkAfTv/eWNC/8TtCcGyaFxYh7sUhoR5rFtxHx2aP0E=
+github.com/Psiphon-Labs/quic-go v0.14.1-0.20200116022806-abf539ac596a h1:MfvK88D9Digt/FMxOXs1qeFXsmp8aIOCsKh6UpMcKHY=
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 github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
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@@ -56,55 +83,68 @@ github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
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@@ -222,8 +288,8 @@ github.com/mattn/go-sqlite3 v1.12.0/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsO
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@@ -261,6 +331,8 @@ github.com/pierrec/lz4 v0.0.0-20190327172049-315a67e90e41/go.mod h1:3/3N9NVKO0je
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@@ -268,35 +340,40 @@ github.com/posener/complete v1.1.1/go.mod h1:em0nMJCgc9GFtwrmVmEMR/ZL6WyhyjMBndr
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@@ -305,9 +382,8 @@ github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPx
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@@ -326,8 +402,8 @@ github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0
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@@ -336,6 +412,7 @@ github.com/tj/go-kinesis v0.0.0-20171128231115-08b17f58cb1b/go.mod h1:/yhzCV0xPf
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@@ -345,12 +422,19 @@ github.com/zach-klippenstein/goregen v0.0.0-20160303162051-795b5e3961ea h1:Cyhwe
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@@ -359,69 +443,161 @@ golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACk
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+google.golang.org/grpc v1.26.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
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@@ -451,6 +627,13 @@ gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
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+gopkg.in/yaml.v2 v2.2.7 h1:VUgggvou5XRW9mHwD/yXxIYSMtY0zoKQf/v226p2nyo=
+gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
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+rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
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nettests/groups.go

@@ -40,6 +40,7 @@ var NettestGroups = map[string]NettestGroup{
 		Label: "Circumvention Tools",
 		Nettests: []Nettest{
 			Psiphon{},
+			Tor{},
 		},
 	},
 }

nettests/tor.go

@@ -0,0 +1,72 @@
+package nettests
+
+// Tor test implementation
+type Tor struct {
+}
+
+// Run starts the test
+func (h Tor) Run(ctl *Controller) error {
+	builder, err := ctl.Ctx.Session.NewExperimentBuilder(
+		"tor",
+	)
+	if err != nil {
+		return err
+	}
+	return ctl.Run(builder, []string{""})
+}
+
+// TorTestKeys contains the test keys
+type TorTestKeys struct {
+	DirPortTotal            int64 `json:"dir_port_total"`
+	DirPortAccessible       int64 `json:"dir_port_accessible"`
+	IsAnomaly               bool  `json:"-"`
+	OBFS4Total              int64 `json:"obfs4_total"`
+	OBFS4Accessible         int64 `json:"obfs4_accessible"`
+	ORPortDirauthTotal      int64 `json:"or_port_dirauth_total"`
+	ORPortDirauthAccessible int64 `json:"or_port_dirauth_accessible"`
+	ORPortTotal             int64 `json:"or_port_total"`
+	ORPortAccessible        int64 `json:"or_port_accessible"`
+}
+
+// GetTestKeys generates a summary for a test run
+func (h Tor) GetTestKeys(tk map[string]interface{}) (interface{}, error) {
+	testKeys := TorTestKeys{IsAnomaly: false}
+	// Implementation note: when Go marshals into an interface, it marshals to
+	// float64 rather than int64, so we need to do some more work here.
+	//
+	// See <https://golang.org/pkg/encoding/json/#Unmarshal>.
+	if tk["dir_port_total"] != nil {
+		testKeys.DirPortTotal = int64(tk["dir_port_total"].(float64))
+	}
+	if tk["dir_port_accessible"] != nil {
+		testKeys.DirPortAccessible = int64(tk["dir_port_accessible"].(float64))
+	}
+	if tk["obfs4_total"] != nil {
+		testKeys.OBFS4Total = int64(tk["obfs4_total"].(float64))
+	}
+	if tk["obfs4_accessible"] != nil {
+		testKeys.OBFS4Accessible = int64(tk["obfs4_accessible"].(float64))
+	}
+	if tk["or_port_dirauth_total"] != nil {
+		testKeys.ORPortDirauthTotal = int64(tk["or_port_dirauth_total"].(float64))
+	}
+	if tk["or_port_dirauth_accessible"] != nil {
+		testKeys.ORPortDirauthAccessible = int64(tk["or_port_dirauth_accessible"].(float64))
+	}
+	if tk["or_port_total"] != nil {
+		testKeys.ORPortTotal = int64(tk["or_port_total"].(float64))
+	}
+	if tk["or_port_accessible"] != nil {
+		testKeys.ORPortAccessible = int64(tk["or_port_accessible"].(float64))
+	}
+	testKeys.IsAnomaly = ((testKeys.DirPortAccessible <= 0 && testKeys.DirPortTotal > 0) ||
+		(testKeys.OBFS4Accessible <= 0 && testKeys.OBFS4Total > 0) ||
+		(testKeys.ORPortDirauthAccessible <= 0 && testKeys.ORPortDirauthTotal > 0) ||
+		(testKeys.ORPortAccessible <= 0 && testKeys.ORPortTotal > 0))
+	return testKeys, nil
+}
+
+// LogSummary writes the summary to the standard output
+func (h Tor) LogSummary(s string) error {
+	return nil
+}

nettests/web_connectivity.go

@@ -10,7 +10,7 @@ func lookupURLs(ctl *Controller, limit int64) ([]string, map[int64]int64, error)
 	var urls []string
 	urlIDMap := make(map[int64]int64)
 	testlist, err := ctl.Ctx.Session.QueryTestListsURLs(&engine.TestListsURLsConfig{
-		Limit: int(limit),
+		Limit: limit,
 	})
 	if err != nil {
 		return nil, nil, err