meutel/oauth2_proxy
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Merge pull request #423 from Jimdo/configure_accesslog_format

Browse Source 
Make Request Logging Format Configurable
This commit is contained in:
Tanvir Alam 2017-12-04 12:56:54 -05:00 committed by GitHub
commit faff555c55
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 128 additions and 45 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
README.md
View File

@ -210,6 +210,7 @@ Usage of oauth2_proxy:
-redeem-url string: Token redemption endpoint
-redirect-url string: the OAuth Redirect URL. ie: "https://internalapp.yourcompany.com/oauth2/callback"
-request-logging: Log requests to stdout (default true)
-request-logging-format: Template for request log lines (see "Logging Format" paragraph below)
-resource string: The resource that is protected (Azure AD only)
-scope string: OAuth scope specification
-set-xauthrequest: set X-Auth-Request-User and X-Auth-Request-Email response headers (useful in Nginx auth_request mode)
@ -347,12 +348,21 @@ following:
## Logging Format
OAuth2 Proxy logs requests to stdout in a format similar to Apache Combined Log.
By default, OAuth2 Proxy logs requests to stdout in a format similar to Apache Combined Log.
```
<REMOTE_ADDRESS> - <user@domain.com> [19/Mar/2015:17:20:19 -0400] <HOST_HEADER> GET <UPSTREAM_HOST> "/path/" HTTP/1.1 "<USER_AGENT>" <RESPONSE_CODE> <RESPONSE_BYTES> <REQUEST_DURATION>
```
If you require a different format than that, you can configure it with the `-request-logging-format` flag.
The default format is configured as follows:
```
{{.Client}} - {{.Username}} [{{.Timestamp}}] {{.Host}} {{.RequestMethod}} {{.Upstream}} {{.RequestURI}} {{.Protocol}} {{.UserAgent}} {{.StatusCode}} {{.ResponseSize}} {{.RequestDuration}}
```
[See `logMessageData` in `logging_handler.go`](./logging_handler.go) for all available variables.
## Adding a new Provider
Follow the examples in the [`providers` package](providers/) to define a new

78
logging_handler.go
View File

@ -9,9 +9,14 @@ import (
"net"
"net/http"
"net/url"
"text/template"
"time"
)
const (
defaultRequestLoggingFormat = "{{.Client}} - {{.Username}} [{{.Timestamp}}] {{.Host}} {{.RequestMethod}} {{.Upstream}} {{.RequestURI}} {{.Protocol}} {{.UserAgent}} {{.StatusCode}} {{.ResponseSize}} {{.RequestDuration}}"
)
// responseLogger is wrapper of http.ResponseWriter that keeps track of its HTTP status
// code and body size
type responseLogger struct {
@ -64,15 +69,38 @@ func (l *responseLogger) Size() int {
return l.size
}
// loggingHandler is the http.Handler implementation for LoggingHandlerTo and its friends
type loggingHandler struct {
writer io.Writer
handler http.Handler
enabled bool
// logMessageData is the container for all values that are available as variables in the request logging format.
// All values are pre-formatted strings so it is easy to use them in the format string.
type logMessageData struct {
Client,
Host,
Protocol,
RequestDuration,
RequestMethod,
RequestURI,
ResponseSize,
StatusCode,
Timestamp,
Upstream,
UserAgent,
Username string
}
func LoggingHandler(out io.Writer, h http.Handler, v bool) http.Handler {
return loggingHandler{out, h, v}
// loggingHandler is the http.Handler implementation for LoggingHandlerTo and its friends
type loggingHandler struct {
writer io.Writer
handler http.Handler
enabled bool
logTemplate *template.Template
}
func LoggingHandler(out io.Writer, h http.Handler, v bool, requestLoggingTpl string) http.Handler {
return loggingHandler{
writer: out,
handler: h,
enabled: v,
logTemplate: template.Must(template.New("request-log").Parse(requestLoggingTpl)),
}
}
func (h loggingHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
@ -83,14 +111,13 @@ func (h loggingHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
if !h.enabled {
return
}
logLine := buildLogLine(logger.authInfo, logger.upstream, req, url, t, logger.Status(), logger.Size())
h.writer.Write(logLine)
h.writeLogLine(logger.authInfo, logger.upstream, req, url, t, logger.Status(), logger.Size())
}
// Log entry for req similar to Apache Common Log Format.
// ts is the timestamp with which the entry should be logged.
// status, size are used to provide the response HTTP status and size.
func buildLogLine(username, upstream string, req *http.Request, url url.URL, ts time.Time, status int, size int) []byte {
func (h loggingHandler) writeLogLine(username, upstream string, req *http.Request, url url.URL, ts time.Time, status int, size int) {
if username == "" {
username = "-"
}
@ -114,19 +141,20 @@ func buildLogLine(username, upstream string, req *http.Request, url url.URL, ts
duration := float64(time.Now().Sub(ts)) / float64(time.Second)
logLine := fmt.Sprintf("%s - %s [%s] %s %s %s %q %s %q %d %d %0.3f\n",
client,
username,
ts.Format("02/Jan/2006:15:04:05 -0700"),
req.Host,
req.Method,
upstream,
url.RequestURI(),
req.Proto,
req.UserAgent(),
status,
size,
duration,
)
return []byte(logLine)
h.logTemplate.Execute(h.writer, logMessageData{
Client: client,
Host: req.Host,
Protocol: req.Proto,
RequestDuration: fmt.Sprintf("%0.3f", duration),
RequestMethod: req.Method,
RequestURI: fmt.Sprintf("%q", url.RequestURI()),
ResponseSize: fmt.Sprintf("%d", size),
StatusCode: fmt.Sprintf("%d", status),
Timestamp: ts.Format("02/Jan/2006:15:04:05 -0700"),
Upstream: upstream,
UserAgent: fmt.Sprintf("%q", req.UserAgent()),
Username: username,
})
h.writer.Write([]byte("\n"))
}

42
logging_handler_test.go Normal file
View File

@ -0,0 +1,42 @@
package main
import (
"bytes"
"fmt"
"net/http"
"net/http/httptest"
"testing"
"time"
)
func TestLoggingHandler_ServeHTTP(t *testing.T) {
ts := time.Now()
tests := []struct {
Format,
ExpectedLogMessage string
}{
{defaultRequestLoggingFormat, fmt.Sprintf("127.0.0.1 - - [%s] test-server GET - \"/foo/bar\" HTTP/1.1 \"\" 200 4 0.000\n", ts.Format("02/Jan/2006:15:04:05 -0700"))},
{"{{.RequestMethod}}", "GET\n"},
}
for _, test := range tests {
buf := bytes.NewBuffer(nil)
handler := func(w http.ResponseWriter, req *http.Request) {
w.Write([]byte("test"))
}
h := LoggingHandler(buf, http.HandlerFunc(handler), true, test.Format)
r, _ := http.NewRequest("GET", "/foo/bar", nil)
r.RemoteAddr = "127.0.0.1"
r.Host = "test-server"
h.ServeHTTP(httptest.NewRecorder(), r)
actual := buf.String()
if actual != test.ExpectedLogMessage {
t.Errorf("Log message was\n%s\ninstead of expected \n%s", actual, test.ExpectedLogMessage)
}
}
}

3
main.go
View File

@ -67,6 +67,7 @@ func main() {
flagSet.Bool("cookie-httponly", true, "set HttpOnly cookie flag")
flagSet.Bool("request-logging", true, "Log requests to stdout")
flagSet.String("request-logging-format", defaultRequestLoggingFormat, "Template for log lines")
flagSet.String("provider", "google", "OAuth provider")
flagSet.String("oidc-issuer-url", "", "OpenID Connect issuer URL (ie: https://accounts.google.com)")
@ -125,7 +126,7 @@ func main() {
}
s := &Server{
Handler: LoggingHandler(os.Stdout, oauthproxy, opts.RequestLogging),
Handler: LoggingHandler(os.Stdout, oauthproxy, opts.RequestLogging, opts.RequestLoggingFormat),
Opts: opts,
}
s.ListenAndServe()

38
options.go
View File

@ -74,7 +74,8 @@ type Options struct {
Scope string `flag:"scope" cfg:"scope"`
ApprovalPrompt string `flag:"approval-prompt" cfg:"approval_prompt"`
RequestLogging bool `flag:"request-logging" cfg:"request_logging"`
RequestLogging bool `flag:"request-logging" cfg:"request_logging"`
RequestLoggingFormat string `flag:"request-logging-format" cfg:"request_logging_format"`
SignatureKey string `flag:"signature-key" cfg:"signature_key" env:"OAUTH2_PROXY_SIGNATURE_KEY"`
@ -94,23 +95,24 @@ type SignatureData struct {
func NewOptions() *Options {
return &Options{
ProxyPrefix: "/oauth2",
HttpAddress: "127.0.0.1:4180",
HttpsAddress: ":443",
DisplayHtpasswdForm: true,
CookieName: "_oauth2_proxy",
CookieSecure: true,
CookieHttpOnly: true,
CookieExpire: time.Duration(168) * time.Hour,
CookieRefresh: time.Duration(0),
SetXAuthRequest: false,
SkipAuthPreflight: false,
PassBasicAuth: true,
PassUserHeaders: true,
PassAccessToken: false,
PassHostHeader: true,
ApprovalPrompt: "force",
RequestLogging: true,
ProxyPrefix: "/oauth2",
HttpAddress: "127.0.0.1:4180",
HttpsAddress: ":443",
DisplayHtpasswdForm: true,
CookieName: "_oauth2_proxy",
CookieSecure: true,
CookieHttpOnly: true,
CookieExpire: time.Duration(168) * time.Hour,
CookieRefresh: time.Duration(0),
SetXAuthRequest: false,
SkipAuthPreflight: false,
PassBasicAuth: true,
PassUserHeaders: true,
PassAccessToken: false,
PassHostHeader: true,
ApprovalPrompt: "force",
RequestLogging: true,
RequestLoggingFormat: defaultRequestLoggingFormat,
}
}