Make error reporting more robust to panic

cmd/ooni/main.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	// commands
-	"github.com/apex/log"
 
 	_ "github.com/ooni/probe-cli/internal/cli/geoip"
 	_ "github.com/ooni/probe-cli/internal/cli/info"
@@ -14,17 +13,11 @@ import (
 	_ "github.com/ooni/probe-cli/internal/cli/show"
 	_ "github.com/ooni/probe-cli/internal/cli/upload"
 	_ "github.com/ooni/probe-cli/internal/cli/version"
+	"github.com/ooni/probe-cli/internal/crashreport"
 
 	"github.com/ooni/probe-cli/internal/cli/app"
-	"github.com/ooni/probe-cli/internal/crashreport"
 )
 
 func main() {
-	crashreport.CapturePanicAndWait(func() {
-		err := app.Run()
-		if err == nil {
-			return
-		}
-		log.WithError(err).Fatal("main exit")
-	}, nil)
+	crashreport.CapturePanicAndWait(app.Run, nil)
 }

internal/cli/app/app.go

@@ -3,13 +3,17 @@ package app
 import (
 	"os"
 
+	"github.com/apex/log"
 	ooni "github.com/ooni/probe-cli"
 	"github.com/ooni/probe-cli/internal/cli/root"
 )
 
 // Run the app. This is the main app entry point
-func Run() error {
+func Run() {
 	root.Cmd.Version(ooni.Version)
 	_, err := root.Cmd.Parse(os.Args[1:])
-	return err
+	if err != nil {
+		log.WithError(err).Error("failed to parse arguments")
+	}
+	return
 }

internal/database/actions.go

@@ -3,6 +3,7 @@ package database
 import (
 	"database/sql"
 	"encoding/json"
+	"reflect"
 	"time"
 
 	"github.com/apex/log"
@@ -221,16 +222,29 @@ func CreateOrUpdateURL(sess sqlbuilder.Database, url string, categoryCode string
 
 // AddTestKeys writes the summary to the measurement
 func AddTestKeys(sess sqlbuilder.Database, msmt *Measurement, tk interface{}) error {
+	var (
+		isAnomaly      bool
+		isAnomalyValid bool
+	)
 	tkBytes, err := json.Marshal(tk)
 	if err != nil {
 		log.WithError(err).Error("failed to serialize summary")
 	}
-	isAnomaly := tk.(struct{ IsAnomaly bool }).IsAnomaly
+
+	// This is necessary so that we can extract from the the opaque testKeys just
+	// the IsAnomaly field of bool type.
+	// Maybe generics are not so bad after-all, heh golang?
+	isAnomalyValue := reflect.ValueOf(tk).FieldByName("IsAnomaly")
+	if isAnomalyValue.IsValid() == true && isAnomalyValue.Kind() == reflect.Bool {
+		isAnomaly = isAnomalyValue.Bool()
+		isAnomalyValid = true
+	}
 	msmt.TestKeys = string(tkBytes)
-	msmt.IsAnomaly = sql.NullBool{Bool: isAnomaly, Valid: true}
+	msmt.IsAnomaly = sql.NullBool{Bool: isAnomaly, Valid: isAnomalyValid}
 
 	err = sess.Collection("measurements").Find("id", msmt.ID).Update(msmt)
 	if err != nil {
+		log.WithError(err).Error("failed to update measurement")
 		return errors.Wrap(err, "updating measurement")
 	}
 	return nil

nettests/nettests.go

@@ -12,9 +12,11 @@ import (
 	"github.com/fatih/color"
 	"github.com/measurement-kit/go-measurement-kit"
 	ooni "github.com/ooni/probe-cli"
+	"github.com/ooni/probe-cli/internal/crashreport"
 	"github.com/ooni/probe-cli/internal/database"
 	"github.com/ooni/probe-cli/internal/output"
 	"github.com/ooni/probe-cli/utils"
+	"github.com/ooni/probe-cli/utils/strcase"
 )
 
 // Nettest interface. Every Nettest should implement this.
@@ -70,7 +72,7 @@ func (c *Controller) Init(nt *mk.Nettest) error {
 
 	// These values are shared by every measurement
 	reportID := sql.NullString{String: "", Valid: false}
-	testName := nt.Name
+	testName := strcase.ToSnake(nt.Name)
 	resultID := c.res.ID
 	reportFilePath := c.msmtPath
 
@@ -270,7 +272,9 @@ func (c *Controller) Init(nt *mk.Nettest) error {
 	nt.On("measurement", func(e mk.Event) {
 		log.Debugf("status.end")
 
+		crashreport.CapturePanicAndWait(func() {
 			c.OnEntry(e.Value.Idx, e.Value.JSONStr)
+		}, nil)
 	})
 
 	nt.On("status.end", func(e mk.Event) {