imap: extract imap config and configure handling

Extract the imap config and move the configure part out of the message
handler.

Signed-off-by: Koni Marti <koni.marti@gmail.com>
Acked-by: Robin Jarry <robin@jarry.cc>

1 files changed, 99 insertions, 0 deletions

diff --git a/worker/imap/configure.go b/worker/imap/configure.go
new file mode 100644
index 00000000..ac1d606d
--- /dev/null
+++ b/worker/imap/configure.go
@@ -0,0 +1,99 @@
+package imap
+
+import (
+	"fmt"
+	"net/url"
+	"strconv"
+	"strings"
+	"time"
+
+	"git.sr.ht/~rjarry/aerc/worker/types"
+	"golang.org/x/oauth2"
+)
+
+func (w *IMAPWorker) handleConfigure(msg *types.Configure) error {
+	u, err := url.Parse(msg.Config.Source)
+	if err != nil {
+		return err
+	}
+
+	w.config.scheme = u.Scheme
+	if strings.HasSuffix(w.config.scheme, "+insecure") {
+		w.config.scheme = strings.TrimSuffix(w.config.scheme, "+insecure")
+		w.config.insecure = true
+	}
+
+	if strings.HasSuffix(w.config.scheme, "+oauthbearer") {
+		w.config.scheme = strings.TrimSuffix(w.config.scheme, "+oauthbearer")
+		w.config.oauthBearer.Enabled = true
+		q := u.Query()
+
+		oauth2 := &oauth2.Config{}
+		if q.Get("token_endpoint") != "" {
+			oauth2.ClientID = q.Get("client_id")
+			oauth2.ClientSecret = q.Get("client_secret")
+			oauth2.Scopes = []string{q.Get("scope")}
+			oauth2.Endpoint.TokenURL = q.Get("token_endpoint")
+		}
+		w.config.oauthBearer.OAuth2 = oauth2
+	}
+
+	w.config.addr = u.Host
+	if !strings.ContainsRune(w.config.addr, ':') {
+		w.config.addr += ":" + w.config.scheme
+	}
+
+	w.config.user = u.User
+	w.config.folders = msg.Config.Folders
+	w.config.idle_timeout = 10 * time.Second
+	w.config.connection_timeout = 30 * time.Second
+	w.config.keepalive_period = 0 * time.Second
+	w.config.keepalive_probes = 3
+	w.config.keepalive_interval = 3
+	for key, value := range msg.Config.Params {
+		switch key {
+		case "idle-timeout":
+			val, err := time.ParseDuration(value)
+			if err != nil || val < 0 {
+				return fmt.Errorf(
+					"invalid idle-timeout value %v: %v",
+					value, err)
+			}
+			w.config.idle_timeout = val
+		case "connection-timeout":
+			val, err := time.ParseDuration(value)
+			if err != nil || val < 0 {
+				return fmt.Errorf(
+					"invalid connection-timeout value %v: %v",
+					value, err)
+			}
+			w.config.connection_timeout = val
+		case "keepalive-period":
+			val, err := time.ParseDuration(value)
+			if err != nil || val < 0 {
+				return fmt.Errorf(
+					"invalid keepalive-period value %v: %v",
+					value, err)
+			}
+			w.config.keepalive_period = val
+		case "keepalive-probes":
+			val, err := strconv.Atoi(value)
+			if err != nil || val < 0 {
+				return fmt.Errorf(
+					"invalid keepalive-probes value %v: %v",
+					value, err)
+			}
+			w.config.keepalive_probes = val
+		case "keepalive-interval":
+			val, err := time.ParseDuration(value)
+			if err != nil || val < 0 {
+				return fmt.Errorf(
+					"invalid keepalive-interval value %v: %v",
+					value, err)
+			}
+			w.config.keepalive_interval = int(val.Seconds())
+		}
+	}
+
+	return nil
+}