mirror of
https://github.com/caddyserver/caddy.git
synced 2024-12-16 21:56:40 -05:00
0c8ad52be1
* Begin WIP integration of HTTP/3 support * http3: Set actual Handler, make fakeClosePacketConn type for UDP sockets Also use latest quic-go for ALPN fix * Manually keep track of and close HTTP/3 listeners * Update quic-go after working through some http3 bugs * Fix go mod * Make http3 optional for now
158 lines
4.4 KiB
Go
158 lines
4.4 KiB
Go
// Copyright 2015 Matthew Holt and The Caddy Authors
|
|
//
|
|
// 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 caddycmd
|
|
|
|
import (
|
|
"bytes"
|
|
"flag"
|
|
"fmt"
|
|
"io"
|
|
"io/ioutil"
|
|
"log"
|
|
"net"
|
|
"os"
|
|
|
|
"github.com/caddyserver/caddy/v2"
|
|
"github.com/caddyserver/caddy/v2/caddyconfig"
|
|
)
|
|
|
|
// Main implements the main function of the caddy command.
|
|
// Call this if Caddy is to be the main() if your program.
|
|
func Main() {
|
|
caddy.TrapSignals()
|
|
|
|
if len(os.Args) < 2 {
|
|
fmt.Println(usageString())
|
|
return
|
|
}
|
|
|
|
subcommand, ok := commands[os.Args[1]]
|
|
if !ok {
|
|
fmt.Printf("%q is not a valid command\n", os.Args[1])
|
|
os.Exit(caddy.ExitCodeFailedStartup)
|
|
}
|
|
|
|
if exitCode, err := subcommand(); err != nil {
|
|
log.Println(err)
|
|
os.Exit(exitCode)
|
|
}
|
|
}
|
|
|
|
// commandFunc is a function that executes
|
|
// a subcommand. It returns an exit code and
|
|
// any associated error.
|
|
type commandFunc func() (int, error)
|
|
|
|
var commands = map[string]commandFunc{
|
|
"start": cmdStart,
|
|
"run": cmdRun,
|
|
"stop": cmdStop,
|
|
"reload": cmdReload,
|
|
"version": cmdVersion,
|
|
"list-modules": cmdListModules,
|
|
"environ": cmdEnviron,
|
|
"adapt-config": cmdAdaptConfig,
|
|
}
|
|
|
|
func usageString() string {
|
|
buf := new(bytes.Buffer)
|
|
buf.WriteString("usage: caddy <command> [<args>]")
|
|
flag.CommandLine.SetOutput(buf)
|
|
flag.CommandLine.PrintDefaults()
|
|
return buf.String()
|
|
}
|
|
|
|
// handlePingbackConn reads from conn and ensures it matches
|
|
// the bytes in expect, or returns an error if it doesn't.
|
|
func handlePingbackConn(conn net.Conn, expect []byte) error {
|
|
defer conn.Close()
|
|
confirmationBytes, err := ioutil.ReadAll(io.LimitReader(conn, 32))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if !bytes.Equal(confirmationBytes, expect) {
|
|
return fmt.Errorf("wrong confirmation: %x", confirmationBytes)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// loadConfig loads the config from configFile and adapts it
|
|
// using adapterName. If adapterName is specified, configFile
|
|
// must be also. It prints any warnings to stderr, and returns
|
|
// the resulting JSON config bytes.
|
|
func loadConfig(configFile, adapterName string) ([]byte, error) {
|
|
// specifying an adapter without a config file is ambiguous
|
|
if configFile == "" && adapterName != "" {
|
|
return nil, fmt.Errorf("cannot adapt config without config file (use --config)")
|
|
}
|
|
|
|
// load initial config and adapter
|
|
var config []byte
|
|
var cfgAdapter caddyconfig.Adapter
|
|
var err error
|
|
if configFile != "" {
|
|
config, err = ioutil.ReadFile(configFile)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("reading config file: %v", err)
|
|
}
|
|
} else if adapterName == "" {
|
|
// as a special case when no config file or adapter
|
|
// is specified, see if the Caddyfile adapter is
|
|
// plugged in, and if so, try using a default Caddyfile
|
|
cfgAdapter = caddyconfig.GetAdapter("caddyfile")
|
|
if cfgAdapter != nil {
|
|
config, err = ioutil.ReadFile("Caddyfile")
|
|
if os.IsNotExist(err) {
|
|
// okay, no default Caddyfile; pretend like this never happened
|
|
cfgAdapter = nil
|
|
err = nil
|
|
} else if err != nil {
|
|
// default Caddyfile exists, but error reading it
|
|
return nil, fmt.Errorf("reading default Caddyfile: %v", err)
|
|
} else {
|
|
// success reading default Caddyfile
|
|
configFile = "Caddyfile"
|
|
}
|
|
}
|
|
}
|
|
|
|
// load config adapter
|
|
if adapterName != "" {
|
|
cfgAdapter = caddyconfig.GetAdapter(adapterName)
|
|
if cfgAdapter == nil {
|
|
return nil, fmt.Errorf("unrecognized config adapter: %s", adapterName)
|
|
}
|
|
}
|
|
|
|
// adapt config
|
|
if cfgAdapter != nil {
|
|
adaptedConfig, warnings, err := cfgAdapter.Adapt(config, map[string]interface{}{
|
|
"filename": configFile,
|
|
})
|
|
if err != nil {
|
|
return nil, fmt.Errorf("adapting config using %s: %v", adapterName, err)
|
|
}
|
|
for _, warn := range warnings {
|
|
msg := warn.Message
|
|
if warn.Directive != "" {
|
|
msg = fmt.Sprintf("%s: %s", warn.Directive, warn.Message)
|
|
}
|
|
fmt.Printf("[WARNING][%s] %s:%d: %s", adapterName, warn.File, warn.Line, msg)
|
|
}
|
|
config = adaptedConfig
|
|
}
|
|
|
|
return config, nil
|
|
}
|