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// Copyright 2020 The Matrix.org Foundation C.I.C.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package test
import (
"context"
"fmt"
"net"
"net/http"
"os"
"os/exec"
"path/filepath"
"strings"
"sync"
"testing"
"github.com/matrix-org/dendrite/setup/config"
)
// Defaulting allows assignment of string variables with a fallback default value
// Useful for use with os.Getenv() for example
func Defaulting(value, defaultValue string) string {
if value == "" {
value = defaultValue
}
return value
}
// CreateDatabase creates a new database, dropping it first if it exists
func CreateDatabase(command string, args []string, database string) error {
cmd := exec.Command(command, args...)
cmd.Stdin = strings.NewReader(
fmt.Sprintf("DROP DATABASE IF EXISTS %s; CREATE DATABASE %s;", database, database),
)
// Send stdout and stderr to our stderr so that we see error messages from
// the psql process
cmd.Stdout = os.Stderr
cmd.Stderr = os.Stderr
return cmd.Run()
}
// CreateBackgroundCommand creates an executable command
// The Cmd being executed is returned. A channel is also returned,
// which will have any termination errors sent down it, followed immediately by the channel being closed.
func CreateBackgroundCommand(command string, args []string) (*exec.Cmd, chan error) {
cmd := exec.Command(command, args...)
cmd.Stderr = os.Stderr
cmd.Stdout = os.Stderr
if err := cmd.Start(); err != nil {
panic("failed to start server: " + err.Error())
}
cmdChan := make(chan error, 1)
go func() {
cmdChan <- cmd.Wait()
close(cmdChan)
}()
return cmd, cmdChan
}
// InitDatabase creates the database and config file needed for the server to run
func InitDatabase(postgresDatabase, postgresContainerName string, databases []string) {
if len(databases) > 0 {
var dbCmd string
var dbArgs []string
if postgresContainerName == "" {
dbCmd = "psql"
dbArgs = []string{postgresDatabase}
} else {
dbCmd = "docker"
dbArgs = []string{
"exec", "-i", postgresContainerName, "psql", "-U", "postgres", postgresDatabase,
}
}
for _, database := range databases {
if err := CreateDatabase(dbCmd, dbArgs, database); err != nil {
panic(err)
}
}
}
}
// StartProxy creates a reverse proxy
func StartProxy(bindAddr string, cfg *config.Dendrite) (*exec.Cmd, chan error) {
proxyArgs := []string{
"--bind-address", bindAddr,
"--sync-api-server-url", "http://" + string(cfg.SyncAPI.InternalAPI.Connect),
"--client-api-server-url", "http://" + string(cfg.ClientAPI.InternalAPI.Connect),
"--media-api-server-url", "http://" + string(cfg.MediaAPI.InternalAPI.Connect),
"--tls-cert", "server.crt",
"--tls-key", "server.key",
}
return CreateBackgroundCommand(
filepath.Join(filepath.Dir(os.Args[0]), "client-api-proxy"),
proxyArgs,
)
}
// ListenAndServe will listen on a random high-numbered port and attach the given router.
// Returns the base URL to send requests to. Call `cancel` to shutdown the server, which will block until it has closed.
func ListenAndServe(t *testing.T, router http.Handler, useTLS bool) (apiURL string, cancel func()) {
listener, err := net.Listen("tcp", ":0")
if err != nil {
t.Fatalf("failed to listen: %s", err)
}
port := listener.Addr().(*net.TCPAddr).Port
srv := http.Server{}
var wg sync.WaitGroup
wg.Add(1)
go func() {
defer wg.Done()
srv.Handler = router
var err error
if useTLS {
certFile := filepath.Join(os.TempDir(), "dendrite.cert")
keyFile := filepath.Join(os.TempDir(), "dendrite.key")
err = NewTLSKey(keyFile, certFile)
if err != nil {
t.Logf("failed to generate tls key/cert: %s", err)
return
}
err = srv.ServeTLS(listener, certFile, keyFile)
} else {
err = srv.Serve(listener)
}
if err != nil && err != http.ErrServerClosed {
t.Logf("Listen failed: %s", err)
}
}()
secure := ""
if useTLS {
secure = "s"
}
return fmt.Sprintf("http%s://localhost:%d", secure, port), func() {
_ = srv.Shutdown(context.Background())
wg.Wait()
}
}
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