[evolution] I#44 - Use Thunderbird's autoconfig ISPDB directly, not its copy

[Milan Crha <mcrha src gnome org>]

commit 0273cc29d18cde99f76d07ba41124b0825ee9ecf
Author: Milan Crha <mcrha redhat com>
Date:   Fri Jun 29 12:03:59 2018 +0200

    I#44 - Use Thunderbird's autoconfig ISPDB directly, not its copy
    
    Closes https://gitlab.gnome.org/GNOME/evolution/issues/44

 src/mail/e-mail-autoconfig.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)
---
diff --git a/src/mail/e-mail-autoconfig.c b/src/mail/e-mail-autoconfig.c
index 1b321c8283..3464936974 100644
--- a/src/mail/e-mail-autoconfig.c
+++ b/src/mail/e-mail-autoconfig.c
@@ -75,8 +75,7 @@
        (G_TYPE_INSTANCE_GET_PRIVATE \
        ((obj), E_TYPE_MAIL_AUTOCONFIG, EMailAutoconfigPrivate))
 
-#define AUTOCONFIG_BASE_URI \
-       "https://api.gnome.org/evolution/autoconfig/1.1/";
+#define AUTOCONFIG_BASE_URI "https://autoconfig.thunderbird.net/v1.1/";
 
 #define ERROR_IS_NOT_FOUND(error) \
        (g_error_matches ((error), SOUP_HTTP_ERROR, SOUP_STATUS_NOT_FOUND))
@@ -405,8 +404,23 @@ mail_autoconfig_lookup (EMailAutoconfig *autoconfig,
        uri = g_strconcat (AUTOCONFIG_BASE_URI, domain, NULL);
 
        soup_message = soup_message_new (SOUP_METHOD_GET, uri);
+
+       if (!soup_message) {
+               g_set_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
+                       _("Invalid URI: “%s”"), uri);
+
+               g_object_unref (soup_session);
+               g_free (uri);
+
+               return FALSE;
+       }
+
        g_free (uri);
 
+       soup_message_headers_append (
+               soup_message->request_headers,
+               "User-Agent", "Evolution/" VERSION VERSION_SUBSTRING " " VERSION_COMMENT);
+
        if (G_IS_CANCELLABLE (cancellable))
                cancel_id = g_cancellable_connect (
                        cancellable,