fix: goagent gosec issues

examples/gin-server/main.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"log"
 	"net/http"
 
 	"github.com/gin-gonic/gin"
@@ -36,5 +37,7 @@ func main() {
 
 	r := setupRouter()
 	// Listen and Server in 0.0.0.0:8080
-	r.Run(":8080")
+	if err := r.Run(":8080"); err != nil {
+		log.Fatalf("error running server: %v", err)
+	}
 }

examples/mux-server/main.go

@@ -8,12 +8,11 @@ import (
 	"net/http"
 	"time"
 
-	"github.com/hypertrace/goagent/config"
-	sdkhttp "github.com/hypertrace/goagent/sdk/instrumentation/net/http"
-
 	"github.com/gorilla/mux"
+	"github.com/hypertrace/goagent/config"
 	"github.com/hypertrace/goagent/instrumentation/hypertrace"
 	"github.com/hypertrace/goagent/instrumentation/opentelemetry/github.com/gorilla/hypermux"
+	sdkhttp "github.com/hypertrace/goagent/sdk/instrumentation/net/http"
 )
 
 func main() {
@@ -26,7 +25,14 @@ func main() {
 	r := mux.NewRouter()
 	r.Use(hypermux.NewMiddleware(&sdkhttp.Options{})) // here we use the mux middleware
 	r.HandleFunc("/foo", http.HandlerFunc(fooHandler))
-	log.Fatal(http.ListenAndServe(":8081", r))
+	srv := http.Server{
+		Addr:              ":8081",
+		Handler:           r,
+		ReadTimeout:       60 * time.Second,
+		WriteTimeout:      60 * time.Second,
+		ReadHeaderTimeout: 60 * time.Second,
+	}
+	log.Fatal(srv.ListenAndServe())
 }
 
 type person struct {
@@ -52,5 +58,7 @@ func fooHandler(w http.ResponseWriter, r *http.Request) {
 
 	w.Header().Set("Content-Type", "application/json")
 	w.WriteHeader(http.StatusOK)
-	w.Write([]byte(fmt.Sprintf("{\"message\": \"Hello %s\"}", p.Name)))
+	if _, err := w.Write([]byte(fmt.Sprintf("{\"message\": \"Hello %s\"}", p.Name))); err != nil {
+		log.Printf("error while writing response body: %v", err)
+	}
 }

examples/postgres-query/main.go

@@ -7,7 +7,10 @@ import (
 	"fmt"
 	"os"
 
-	"github.com/hypertrace/goagent/instrumentation/hypertrace/github.com/jackc/hyperpgx"
+	// gosec complains about this pkg not following golang repo standards
+	// "could not import github.com/hypertrace/goagent/instrumentation/hypertrace/github.com/jackc/hyperpgx (invalid package name: "")"
+	// It is caused the pkg having its own go.mod
+	"github.com/hypertrace/goagent/instrumentation/hypertrace/github.com/jackc/hyperpgx" // #nosec
 )
 
 func main() {

examples/sql-query/main.go

@@ -10,7 +10,9 @@ import (
 	"net/http"
 	"time"
 
-	"github.com/go-sql-driver/mysql"
+	// gosec complains about github.com/go-sql-driver/mysql not following golang repo standards
+	// "could not import github.com/go-sql-driver/mysql (invalid package name: "")"
+	"github.com/go-sql-driver/mysql" // #nosec
 	"github.com/gorilla/mux"
 	"github.com/hypertrace/goagent/config"
 	"github.com/hypertrace/goagent/instrumentation/hypertrace"
@@ -40,7 +42,16 @@ func main() {
 		http.HandlerFunc(fooHandlerFunc),
 		"/foo",
 	))
-	log.Fatal(http.ListenAndServe(":8081", r))
+	// Using log.Fatal(http.ListenAndServe(":8081", r)) causes a gosec timeout error.
+	// G114 (CWE-676): Use of net/http serve function that has no support for setting timeouts (Confidence: HIGH, Severity: MEDIUM)
+	srv := http.Server{
+		Addr:              ":8081",
+		Handler:           r,
+		ReadTimeout:       60 * time.Second,
+		WriteTimeout:      60 * time.Second,
+		ReadHeaderTimeout: 60 * time.Second,
+	}
+	log.Fatal(srv.ListenAndServe())
 }
 
 type person struct {
@@ -68,7 +79,9 @@ func fooHandler(db *sql.DB, w http.ResponseWriter, r *http.Request) {
 
 	w.Header().Set("Content-Type", "application/json")
 	w.WriteHeader(http.StatusOK)
-	w.Write([]byte(fmt.Sprintf("{\"message\": \"Hello %s\"}", p.Name)))
+	if _, err := w.Write([]byte(fmt.Sprintf("{\"message\": \"Hello %s\"}", p.Name))); err != nil {
+		log.Printf("errow while writing response body: %v", err)
+	}
 }
 
 func dbConn() (db *sql.DB) {

instrumentation/opencensus/init.go

@@ -21,7 +21,9 @@
 
 	client := &http.Client{Transport: &http.Transport{
 		TLSClientConfig: &tls.Config{
-			MinVersion:         tls.VersionTLS12,
+			MinVersion: tls.VersionTLS12,
+			// Ignore gosec: G402 (CWE-295): TLS InsecureSkipVerify may be true.
+			// #nosec G402
 			InsecureSkipVerify: !cfg.GetReporting().GetSecure().GetValue(),
 		},
 	}}

instrumentation/opentelemetry/github.com/jackc/hyperpgx/pgx.go

@@ -8,7 +8,7 @@ import (
 	"github.com/hypertrace/goagent/sdk"
 	"github.com/jackc/pgconn"
 	"github.com/jackc/pgtype/pgxtype"
-	"github.com/jackc/pgx/v4"
+	pgx "github.com/jackc/pgx/v4"
 )
 
 var _ PGXConn = (*pgx.Conn)(nil)

sdk/instrumentation/net/http/attributes.go

@@ -2,14 +2,15 @@
 
 import (
 	"fmt"
+	"log"
 	"strings"
 
 	"github.com/hypertrace/goagent/sdk"
 )
 
 // SetAttributesFromHeaders set attributes into span from a HeaderAccessor
 func SetAttributesFromHeaders(_type string, headers HeaderAccessor, span sdk.Span) {
-	headers.ForEachHeader(func(key string, values []string) error {
+	err := headers.ForEachHeader(func(key string, values []string) error {
 		if len(values) == 1 {
 			span.SetAttribute(
 				fmt.Sprintf("http.%s.header.%s", _type, strings.ToLower(key)),
@@ -26,4 +27,8 @@
 		}
 		return nil
 	})
+
+	if err != nil {
+		log.Printf("error occurred while setting attributes from headers: %v\n", err)
+	}
 }