vbump to v2.7.5

6 files changed, 105 insertions, 26 deletions

diff --git a/modules/logging/encoders.go b/modules/logging/encoders.go
index 1cfab8e..a4409e7 100644
--- a/modules/logging/encoders.go
+++ b/modules/logging/encoders.go
@@ -17,11 +17,12 @@ package logging
 import (
 	"time"
 
-	"github.com/caddyserver/caddy/v2"
-	"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
 	"go.uber.org/zap"
 	"go.uber.org/zap/buffer"
 	"go.uber.org/zap/zapcore"
+
+	"github.com/caddyserver/caddy/v2"
+	"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
 )
 
 func init() {
diff --git a/modules/logging/filewriter.go b/modules/logging/filewriter.go
index f902a6d..11c051d 100644
--- a/modules/logging/filewriter.go
+++ b/modules/logging/filewriter.go
@@ -22,10 +22,11 @@ import (
 	"path/filepath"
 	"strconv"
 
-	"github.com/caddyserver/caddy/v2"
-	"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
 	"github.com/dustin/go-humanize"
 	"gopkg.in/natefinch/lumberjack.v2"
+
+	"github.com/caddyserver/caddy/v2"
+	"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
 )
 
 func init() {
@@ -126,7 +127,7 @@ func (fw FileWriter) OpenWriter() (io.WriteCloser, error) {
 	}
 
 	// otherwise just open a regular file
-	return os.OpenFile(fw.Filename, os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0666)
+	return os.OpenFile(fw.Filename, os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0o666)
 }
 
 // UnmarshalCaddyfile sets up the module from Caddyfile tokens. Syntax:
diff --git a/modules/logging/filterencoder.go b/modules/logging/filterencoder.go
index 1a6842e..4d51e64 100644
--- a/modules/logging/filterencoder.go
+++ b/modules/logging/filterencoder.go
@@ -19,12 +19,13 @@ import (
 	"fmt"
 	"time"
 
-	"github.com/caddyserver/caddy/v2"
-	"github.com/caddyserver/caddy/v2/caddyconfig"
-	"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
 	"go.uber.org/zap"
 	"go.uber.org/zap/buffer"
 	"go.uber.org/zap/zapcore"
+
+	"github.com/caddyserver/caddy/v2"
+	"github.com/caddyserver/caddy/v2/caddyconfig"
+	"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
 )
 
 func init() {
diff --git a/modules/logging/filters.go b/modules/logging/filters.go
index 8cc84c7..233d5d7 100644
--- a/modules/logging/filters.go
+++ b/modules/logging/filters.go
@@ -25,10 +25,11 @@ import (
 	"strconv"
 	"strings"
 
+	"go.uber.org/zap/zapcore"
+
 	"github.com/caddyserver/caddy/v2"
 	"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
 	"github.com/caddyserver/caddy/v2/modules/caddyhttp"
-	"go.uber.org/zap/zapcore"
 )
 
 func init() {
@@ -81,8 +82,7 @@ func hash(s string) string {
 // of the SHA-256 hash of the content. Operates
 // on string fields, or on arrays of strings
 // where each string is hashed.
-type HashFilter struct {
-}
+type HashFilter struct{}
 
 // CaddyModule returns the Caddy module information.
 func (HashFilter) CaddyModule() caddy.ModuleInfo {
@@ -100,12 +100,15 @@ func (f *HashFilter) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
 // Filter filters the input field with the replacement value.
 func (f *HashFilter) Filter(in zapcore.Field) zapcore.Field {
 	if array, ok := in.Interface.(caddyhttp.LoggableStringArray); ok {
+		newArray := make(caddyhttp.LoggableStringArray, len(array))
 		for i, s := range array {
-			array[i] = hash(s)
+			newArray[i] = hash(s)
 		}
+		in.Interface = newArray
 	} else {
 		in.String = hash(in.String)
 	}
+
 	return in
 }
 
@@ -219,9 +222,11 @@ func (m *IPMaskFilter) Provision(ctx caddy.Context) error {
 // Filter filters the input field.
 func (m IPMaskFilter) Filter(in zapcore.Field) zapcore.Field {
 	if array, ok := in.Interface.(caddyhttp.LoggableStringArray); ok {
+		newArray := make(caddyhttp.LoggableStringArray, len(array))
 		for i, s := range array {
-			array[i] = m.mask(s)
+			newArray[i] = m.mask(s)
 		}
+		in.Interface = newArray
 	} else {
 		in.String = m.mask(in.String)
 	}
@@ -368,9 +373,23 @@ func (m *QueryFilter) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
 
 // Filter filters the input field.
 func (m QueryFilter) Filter(in zapcore.Field) zapcore.Field {
-	u, err := url.Parse(in.String)
+	if array, ok := in.Interface.(caddyhttp.LoggableStringArray); ok {
+		newArray := make(caddyhttp.LoggableStringArray, len(array))
+		for i, s := range array {
+			newArray[i] = m.processQueryString(s)
+		}
+		in.Interface = newArray
+	} else {
+		in.String = m.processQueryString(in.String)
+	}
+
+	return in
+}
+
+func (m QueryFilter) processQueryString(s string) string {
+	u, err := url.Parse(s)
 	if err != nil {
-		return in
+		return s
 	}
 
 	q := u.Query()
@@ -392,9 +411,7 @@ func (m QueryFilter) Filter(in zapcore.Field) zapcore.Field {
 	}
 
 	u.RawQuery = q.Encode()
-	in.String = u.String()
-
-	return in
+	return u.String()
 }
 
 type cookieFilterAction struct {
@@ -580,9 +597,11 @@ func (m *RegexpFilter) Provision(ctx caddy.Context) error {
 // Filter filters the input field with the replacement value if it matches the regexp.
 func (f *RegexpFilter) Filter(in zapcore.Field) zapcore.Field {
 	if array, ok := in.Interface.(caddyhttp.LoggableStringArray); ok {
+		newArray := make(caddyhttp.LoggableStringArray, len(array))
 		for i, s := range array {
-			array[i] = f.regexp.ReplaceAllString(s, f.Value)
+			newArray[i] = f.regexp.ReplaceAllString(s, f.Value)
 		}
+		in.Interface = newArray
 	} else {
 		in.String = f.regexp.ReplaceAllString(in.String, f.Value)
 	}
diff --git a/modules/logging/filters_test.go b/modules/logging/filters_test.go
index e9c3e77..8f7ba0d 100644
--- a/modules/logging/filters_test.go
+++ b/modules/logging/filters_test.go
@@ -83,7 +83,7 @@ func TestIPMaskMultiValue(t *testing.T) {
 	}
 }
 
-func TestQueryFilter(t *testing.T) {
+func TestQueryFilterSingleValue(t *testing.T) {
 	f := QueryFilter{[]queryFilterAction{
 		{replaceAction, "foo", "REDACTED"},
 		{replaceAction, "notexist", "REDACTED"},
@@ -102,6 +102,40 @@ func TestQueryFilter(t *testing.T) {
 	}
 }
 
+func TestQueryFilterMultiValue(t *testing.T) {
+	f := QueryFilter{
+		Actions: []queryFilterAction{
+			{Type: replaceAction, Parameter: "foo", Value: "REDACTED"},
+			{Type: replaceAction, Parameter: "notexist", Value: "REDACTED"},
+			{Type: deleteAction, Parameter: "bar"},
+			{Type: deleteAction, Parameter: "notexist"},
+			{Type: hashAction, Parameter: "hash"},
+		},
+	}
+
+	if f.Validate() != nil {
+		t.Fatalf("the filter must be valid")
+	}
+
+	out := f.Filter(zapcore.Field{Interface: caddyhttp.LoggableStringArray{
+		"/path1?foo=a&foo=b&bar=c&bar=d&baz=e&hash=hashed",
+		"/path2?foo=c&foo=d&bar=e&bar=f&baz=g&hash=hashed",
+	}})
+	arr, ok := out.Interface.(caddyhttp.LoggableStringArray)
+	if !ok {
+		t.Fatalf("field is wrong type: %T", out.Interface)
+	}
+
+	expected1 := "/path1?baz=e&foo=REDACTED&foo=REDACTED&hash=e3b0c442"
+	expected2 := "/path2?baz=g&foo=REDACTED&foo=REDACTED&hash=e3b0c442"
+	if arr[0] != expected1 {
+		t.Fatalf("query parameters in entry 0 have not been filtered correctly: got %s, expected %s", arr[0], expected1)
+	}
+	if arr[1] != expected2 {
+		t.Fatalf("query parameters in entry 1 have not been filtered correctly: got %s, expected %s", arr[1], expected2)
+	}
+}
+
 func TestValidateQueryFilter(t *testing.T) {
 	f := QueryFilter{[]queryFilterAction{
 		{},
diff --git a/modules/logging/netwriter.go b/modules/logging/netwriter.go
index 5a6cf39..1939cb7 100644
--- a/modules/logging/netwriter.go
+++ b/modules/logging/netwriter.go
@@ -40,6 +40,11 @@ type NetWriter struct {
 	// The timeout to wait while connecting to the socket.
 	DialTimeout caddy.Duration `json:"dial_timeout,omitempty"`
 
+	// If enabled, allow connections errors when first opening the
+	// writer. The error and subsequent log entries will be reported
+	// to stderr instead until a connection can be re-established.
+	SoftStart bool `json:"soft_start,omitempty"`
+
 	addr caddy.NetworkAddress
 }
 
@@ -92,7 +97,12 @@ func (nw NetWriter) OpenWriter() (io.WriteCloser, error) {
 	}
 	conn, err := reconn.dial()
 	if err != nil {
-		return nil, err
+		if !nw.SoftStart {
+			return nil, err
+		}
+		// don't block config load if remote is down or some other external problem;
+		// we can dump logs to stderr for now (see issue #5520)
+		fmt.Fprintf(os.Stderr, "[ERROR] net log writer failed to connect: %v (will retry connection and print errors here in the meantime)\n", err)
 	}
 	reconn.connMu.Lock()
 	reconn.Conn = conn
@@ -104,6 +114,7 @@ func (nw NetWriter) OpenWriter() (io.WriteCloser, error) {
 //
 //	net <address> {
 //	    dial_timeout <duration>
+//	    soft_start
 //	}
 func (nw *NetWriter) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
 	for d.Next() {
@@ -128,6 +139,12 @@ func (nw *NetWriter) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
 					return d.ArgErr()
 				}
 				nw.DialTimeout = caddy.Duration(timeout)
+
+			case "soft_start":
+				if d.NextArg() {
+					return d.ArgErr()
+				}
+				nw.SoftStart = true
 			}
 		}
 	}
@@ -151,8 +168,10 @@ func (reconn *redialerConn) Write(b []byte) (n int, err error) {
 	reconn.connMu.RLock()
 	conn := reconn.Conn
 	reconn.connMu.RUnlock()
-	if n, err = conn.Write(b); err == nil {
-		return
+	if conn != nil {
+		if n, err = conn.Write(b); err == nil {
+			return
+		}
 	}
 
 	// problem with the connection - lock it and try to fix it
@@ -161,8 +180,10 @@ func (reconn *redialerConn) Write(b []byte) (n int, err error) {
 
 	// if multiple concurrent writes failed on the same broken conn, then
 	// one of them might have already re-dialed by now; try writing again
-	if n, err = reconn.Conn.Write(b); err == nil {
-		return
+	if reconn.Conn != nil {
+		if n, err = reconn.Conn.Write(b); err == nil {
+			return
+		}
 	}
 
 	// there's still a problem, so try to re-attempt dialing the socket
@@ -178,7 +199,9 @@ func (reconn *redialerConn) Write(b []byte) (n int, err error) {
 			return
 		}
 		if n, err = conn2.Write(b); err == nil {
-			reconn.Conn.Close()
+			if reconn.Conn != nil {
+				reconn.Conn.Close()
+			}
 			reconn.Conn = conn2
 		}
 	} else {