[ARVADOS] updated: 2.1.0-2165-g8f0f3b495

[Git user]

Summary of changes:
 lib/controller/router/router.go |  6 +++++-
 sdk/go/httpserver/logger.go     | 18 ++++++++++++++----
 2 files changed, 19 insertions(+), 5 deletions(-)

       via  8f0f3b495d0c715cc57d0d384bc5839acf9ece3f (commit)
      from  15661585c028bedf752603b37cab07746209c3cc (commit)

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commit 8f0f3b495d0c715cc57d0d384bc5839acf9ece3f
Author: Ward Vandewege <ward at curii.com>
Date:   Fri Mar 25 16:37:28 2022 -0400

    18896: add locking. Also handle v1 tokens shorter than 5 characters.
    
    Arvados-DCO-1.1-Signed-off-by: Ward Vandewege <ward at curii.com>

diff --git a/lib/controller/router/router.go b/lib/controller/router/router.go
index e42d9a555..05bdb4754 100644
--- a/lib/controller/router/router.go
+++ b/lib/controller/router/router.go
@@ -597,7 +597,11 @@ func (rtr *router) addRoute(endpoint arvados.APIEndpoint, defaultOpts func() int
 					tokenUUIDs = append(tokenUUIDs, tokenParts[1])
 				}
 			} else {
-				tokenUUIDs = append(tokenUUIDs, "v1 token ending in "+t[len(t)-5:])
+				end := t
+				if len(t) > 5 {
+					end = t[len(t)-5:]
+				}
+				tokenUUIDs = append(tokenUUIDs, "v1 token ending in "+end)
 			}
 		}
 		httpserver.SetResponseLogFields(req.Context(), logrus.Fields{"tokenUUIDs": tokenUUIDs})
diff --git a/sdk/go/httpserver/logger.go b/sdk/go/httpserver/logger.go
index 437429611..ef2ec4170 100644
--- a/sdk/go/httpserver/logger.go
+++ b/sdk/go/httpserver/logger.go
@@ -9,6 +9,7 @@ import (
 	"context"
 	"net"
 	"net/http"
+	"sync"
 	"time"
 
 	"git.arvados.org/arvados.git/sdk/go/ctxlog"
@@ -23,6 +24,7 @@ type contextKey struct {
 var (
 	requestTimeContextKey       = contextKey{"requestTime"}
 	responseLogFieldsContextKey = contextKey{"responseLogFields"}
+	mutexContextKey             = contextKey{"mutex"}
 )
 
 type hijacker interface {
@@ -66,11 +68,18 @@ func HandlerWithDeadline(timeout time.Duration, next http.Handler) http.Handler
 }
 
 func SetResponseLogFields(ctx context.Context, fields logrus.Fields) {
-	ctxfields := ctx.Value(&responseLogFieldsContextKey)
-	if c, ok := ctxfields.(logrus.Fields); ok {
-		for k, v := range fields {
-			c[k] = v
+	m := ctx.Value(&mutexContextKey)
+	if mutex, ok := m.(sync.Mutex); ok {
+		mutex.Lock()
+		defer mutex.Unlock()
+		ctxfields := ctx.Value(&responseLogFieldsContextKey)
+		if c, ok := ctxfields.(logrus.Fields); ok {
+			for k, v := range fields {
+				c[k] = v
+			}
 		}
+	} else {
+		// We can't lock, don't set the fields
 	}
 }
 
@@ -92,6 +101,7 @@ func LogRequests(h http.Handler) http.Handler {
 		ctx := req.Context()
 		ctx = context.WithValue(ctx, &requestTimeContextKey, time.Now())
 		ctx = context.WithValue(ctx, &responseLogFieldsContextKey, logrus.Fields{})
+		ctx = context.WithValue(ctx, &mutexContextKey, sync.Mutex{})
 		ctx = ctxlog.Context(ctx, lgr)
 		req = req.WithContext(ctx)
 

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