115 lines
2.4 KiB
Go
115 lines
2.4 KiB
Go
package lib
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import (
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"bufio"
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"errors"
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"fmt"
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"log"
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"net"
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"net/url"
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"os"
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"path"
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"strings"
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"sync/atomic"
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"time"
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"git.sr.ht/~rjarry/aerc/logging"
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"github.com/kyoh86/xdg"
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)
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type AercServer struct {
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logger *log.Logger
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listener net.Listener
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OnMailto func(addr *url.URL) error
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}
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func StartServer(logger *log.Logger) (*AercServer, error) {
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sockpath := path.Join(xdg.RuntimeDir(), "aerc.sock")
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// remove the socket if it already exists
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os.Remove(sockpath)
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l, err := net.Listen("unix", sockpath)
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if err != nil {
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return nil, err
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}
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as := &AercServer{
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logger: logger,
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listener: l,
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}
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// TODO: stash clients and close them on exit... bleh racey
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go func() {
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defer logging.PanicHandler()
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for {
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conn, err := l.Accept()
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if err != nil {
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// TODO: Something more useful, in some cases, on wednesdays,
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// after 2 PM, I guess?
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as.logger.Printf("Closing Unix server: %v", err)
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return
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}
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go func() {
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defer logging.PanicHandler()
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as.handleClient(conn)
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}()
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}
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}()
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return as, nil
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}
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func (as *AercServer) Close() {
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as.listener.Close()
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}
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var lastId int64 = 0 // access via atomic
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func (as *AercServer) handleClient(conn net.Conn) {
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clientId := atomic.AddInt64(&lastId, 1)
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as.logger.Printf("Accepted Unix connection %d", clientId)
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scanner := bufio.NewScanner(conn)
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conn.SetDeadline(time.Now().Add(1 * time.Minute))
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for scanner.Scan() {
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conn.SetDeadline(time.Now().Add(1 * time.Minute))
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msg := scanner.Text()
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as.logger.Printf("unix:%d: got message %s", clientId, msg)
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if !strings.ContainsRune(msg, ':') {
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conn.Write([]byte("error: invalid command\n"))
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continue
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}
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prefix := msg[:strings.IndexRune(msg, ':')]
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switch prefix {
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case "mailto":
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mailto, err := url.Parse(msg)
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if err != nil {
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conn.Write([]byte(fmt.Sprintf("error: %v\n", err)))
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break
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}
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if as.OnMailto != nil {
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err = as.OnMailto(mailto)
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}
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if err != nil {
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conn.Write([]byte(fmt.Sprintf("result: %v\n", err)))
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} else {
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conn.Write([]byte("result: success\n"))
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}
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}
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}
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as.logger.Printf("Closed Unix connection %d", clientId)
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}
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func ConnectAndExec(msg string) error {
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sockpath := path.Join(xdg.RuntimeDir(), "aerc.sock")
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conn, err := net.Dial("unix", sockpath)
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if err != nil {
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return err
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}
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conn.Write([]byte(msg + "\n"))
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scanner := bufio.NewScanner(conn)
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if !scanner.Scan() {
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return errors.New("No response from server")
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}
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result := scanner.Text()
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fmt.Println(result)
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return nil
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}
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