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authorBoaz Shuster <boaz.shuster.github@gmail.com>2021-06-02 23:32:58 +0300
committerBoaz Shuster <boaz.shuster.github@gmail.com>2021-06-04 16:14:52 +0300
commit2810c478a7f2497fad1300ce63c8476bb50a6ad0 (patch)
tree98ec1d04e4755d16ac92cc3f3c0071be1e01b80f
parentb64e20a53d3f5de262f2c475be490b35977d5f32 (diff)
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Add CORS support
[NO TESTS NEEDED] Signed-off-by: Boaz Shuster <boaz.shuster.github@gmail.com>
-rw-r--r--cmd/podman/system/service.go11
-rw-r--r--cmd/podman/system/service_abi.go2
-rw-r--r--docs/source/markdown/podman-system-service.1.md4
-rw-r--r--pkg/api/server/handler_api.go6
-rw-r--r--pkg/api/server/server.go21
-rw-r--r--pkg/domain/entities/system.go7
6 files changed, 39 insertions, 12 deletions
diff --git a/cmd/podman/system/service.go b/cmd/podman/system/service.go
index 63f2de51e..a30f43839 100644
--- a/cmd/podman/system/service.go
+++ b/cmd/podman/system/service.go
@@ -39,7 +39,8 @@ Enable a listening service for API access to Podman commands.
}
srvArgs = struct {
- Timeout int64
+ Timeout int64
+ CorsHeaders string
}{}
)
@@ -54,6 +55,8 @@ func init() {
timeFlagName := "time"
flags.Int64VarP(&srvArgs.Timeout, timeFlagName, "t", 5, "Time until the service session expires in seconds. Use 0 to disable the timeout")
_ = srvCmd.RegisterFlagCompletionFunc(timeFlagName, completion.AutocompleteNone)
+ flags.StringVarP(&srvArgs.CorsHeaders, "cors", "", "", "Set CORS Headers")
+ _ = srvCmd.RegisterFlagCompletionFunc("cors", completion.AutocompleteNone)
flags.SetNormalizeFunc(aliasTimeoutFlag)
}
@@ -71,7 +74,6 @@ func service(cmd *cobra.Command, args []string) error {
return err
}
logrus.Infof("using API endpoint: '%s'", apiURI)
-
// Clean up any old existing unix domain socket
if len(apiURI) > 0 {
uri, err := url.Parse(apiURI)
@@ -90,8 +92,9 @@ func service(cmd *cobra.Command, args []string) error {
}
opts := entities.ServiceOptions{
- URI: apiURI,
- Command: cmd,
+ URI: apiURI,
+ Command: cmd,
+ CorsHeaders: srvArgs.CorsHeaders,
}
opts.Timeout = time.Duration(srvArgs.Timeout) * time.Second
diff --git a/cmd/podman/system/service_abi.go b/cmd/podman/system/service_abi.go
index 364663323..d59a45564 100644
--- a/cmd/podman/system/service_abi.go
+++ b/cmd/podman/system/service_abi.go
@@ -72,7 +72,7 @@ func restService(opts entities.ServiceOptions, flags *pflag.FlagSet, cfg *entiti
}
infra.StartWatcher(rt)
- server, err := api.NewServerWithSettings(rt, opts.Timeout, listener)
+ server, err := api.NewServerWithSettings(rt, listener, api.Options{Timeout: opts.Timeout, CorsHeaders: opts.CorsHeaders})
if err != nil {
return err
}
diff --git a/docs/source/markdown/podman-system-service.1.md b/docs/source/markdown/podman-system-service.1.md
index 2c8be73c2..dfb026de1 100644
--- a/docs/source/markdown/podman-system-service.1.md
+++ b/docs/source/markdown/podman-system-service.1.md
@@ -30,6 +30,10 @@ Note: The default systemd unit files (system and user) change the log-level opti
The time until the session expires in _seconds_. The default is 5
seconds. A value of `0` means no timeout, therefore the session will not expire.
+#### **--cors**
+
+CORS headers to inject to the HTTP response. The default value is empty string which disables CORS headers.
+
#### **--help**, **-h**
Print usage statement.
diff --git a/pkg/api/server/handler_api.go b/pkg/api/server/handler_api.go
index 28b8706a8..becc674c0 100644
--- a/pkg/api/server/handler_api.go
+++ b/pkg/api/server/handler_api.go
@@ -63,6 +63,12 @@ func (s *APIServer) APIHandler(h http.HandlerFunc) http.HandlerFunc {
w.Header().Set("Libpod-API-Version", lv)
w.Header().Set("Server", "Libpod/"+lv+" ("+runtime.GOOS+")")
+ if s.CorsHeaders != "" {
+ w.Header().Set("Access-Control-Allow-Origin", s.CorsHeaders)
+ w.Header().Set("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept, X-Registry-Auth, Connection, Upgrade, X-Registry-Config")
+ w.Header().Set("Access-Control-Allow-Methods", "HEAD, GET, POST, DELETE, PUT, OPTIONS")
+ }
+
h(w, r)
logrus.Debugf("APIHandler(%s) -- %s %s END", rid, r.Method, r.URL.String())
}
diff --git a/pkg/api/server/server.go b/pkg/api/server/server.go
index 972541bc6..1e8faf8f5 100644
--- a/pkg/api/server/server.go
+++ b/pkg/api/server/server.go
@@ -34,10 +34,12 @@ type APIServer struct {
context.CancelFunc // Stop APIServer
idleTracker *idle.Tracker // Track connections to support idle shutdown
pprof *http.Server // Sidecar http server for providing performance data
+ CorsHeaders string // Inject CORS headers to each request
}
// Number of seconds to wait for next request, if exceeded shutdown server
const (
+ DefaultCorsHeaders = ""
DefaultServiceDuration = 300 * time.Second
UnlimitedServiceDuration = 0 * time.Second
)
@@ -45,17 +47,22 @@ const (
// shutdownOnce ensures Shutdown() may safely be called from several go routines
var shutdownOnce sync.Once
+type Options struct {
+ Timeout time.Duration
+ CorsHeaders string
+}
+
// NewServer will create and configure a new API server with all defaults
func NewServer(runtime *libpod.Runtime) (*APIServer, error) {
- return newServer(runtime, DefaultServiceDuration, nil)
+ return newServer(runtime, DefaultServiceDuration, nil, DefaultCorsHeaders)
}
// NewServerWithSettings will create and configure a new API server using provided settings
-func NewServerWithSettings(runtime *libpod.Runtime, duration time.Duration, listener *net.Listener) (*APIServer, error) {
- return newServer(runtime, duration, listener)
+func NewServerWithSettings(runtime *libpod.Runtime, listener *net.Listener, opts Options) (*APIServer, error) {
+ return newServer(runtime, opts.Timeout, listener, opts.CorsHeaders)
}
-func newServer(runtime *libpod.Runtime, duration time.Duration, listener *net.Listener) (*APIServer, error) {
+func newServer(runtime *libpod.Runtime, duration time.Duration, listener *net.Listener, corsHeaders string) (*APIServer, error) {
// If listener not provided try socket activation protocol
if listener == nil {
if _, found := os.LookupEnv("LISTEN_PID"); !found {
@@ -71,6 +78,11 @@ func newServer(runtime *libpod.Runtime, duration time.Duration, listener *net.Li
}
listener = &listeners[0]
}
+ if corsHeaders == "" {
+ logrus.Debug("CORS Headers were not set")
+ } else {
+ logrus.Debugf("CORS Headers were set to %s", corsHeaders)
+ }
logrus.Infof("API server listening on %q", (*listener).Addr())
router := mux.NewRouter().UseEncodedPath()
@@ -88,6 +100,7 @@ func newServer(runtime *libpod.Runtime, duration time.Duration, listener *net.Li
idleTracker: idle,
Listener: *listener,
Runtime: runtime,
+ CorsHeaders: corsHeaders,
}
router.NotFoundHandler = http.HandlerFunc(
diff --git a/pkg/domain/entities/system.go b/pkg/domain/entities/system.go
index 31a6185dc..cca4bf44e 100644
--- a/pkg/domain/entities/system.go
+++ b/pkg/domain/entities/system.go
@@ -11,9 +11,10 @@ import (
// ServiceOptions provides the input for starting an API Service
type ServiceOptions struct {
- URI string // Path to unix domain socket service should listen on
- Timeout time.Duration // duration of inactivity the service should wait before shutting down
- Command *cobra.Command // CLI command provided. Used in V1 code
+ URI string // Path to unix domain socket service should listen on
+ Timeout time.Duration // duration of inactivity the service should wait before shutting down
+ Command *cobra.Command // CLI command provided. Used in V1 code
+ CorsHeaders string // CORS headers
}
// SystemPruneOptions provides options to prune system.