imap-send: URI encode server folder

When trying to send a patch using 'imap-send' with 'curl' and the
following configuration:

[imap]
folder = "[Gmail]/Drafts"
host = imaps://imap.gmail.com
port = 993
sslverify = false

results in the following error,

curl_easy_perform() failed: URL using bad/illegal format or missing URL

This is a consequence of not URI-encoding the folder portion of
the URL which contains characters such as '[' which are not
allowed in a URI. According to RFC3986, these characters should be
URI-encoded.

So, URI-encode the folder before adding it to the URI to ensure it doesn't
contain characters that aren't allowed in a URI.

Reported-by: Doron Behar <doron.behar@gmail.com>
Signed-off-by: Nicolas Morey-Chaisemartin <NMoreyChaisemartin@suse.com>
Signed-off-by: Kaartic Sivaraam <kaartic.sivaraam@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/imap-send.c b/imap-send.c
index 54e6a80fd64e16420a526461e90aed559e0bd1d6..36c7c1b4f6195b2d2f00013611a5d0aa96ecf408 100644 (file)
--- a/imap-send.c
+++ b/imap-send.c
@@ -1412,6 +1412,7 @@ static CURL *setup_curl(struct imap_server_conf *srvc, struct credential *cred)
 {
        CURL *curl;
        struct strbuf path = STRBUF_INIT;
+       char *uri_encoded_folder;
 
        if (curl_global_init(CURL_GLOBAL_ALL) != CURLE_OK)
                die("curl_global_init failed");
@@ -1429,7 +1430,12 @@ static CURL *setup_curl(struct imap_server_conf *srvc, struct credential *cred)
        strbuf_addstr(&path, server.host);
        if (!path.len || path.buf[path.len - 1] != '/')
                strbuf_addch(&path, '/');
-       strbuf_addstr(&path, server.folder);
+
+       uri_encoded_folder = curl_easy_escape(curl, server.folder, 0);
+       if (!uri_encoded_folder)
+               die("failed to encode server folder");
+       strbuf_addstr(&path, uri_encoded_folder);
+       curl_free(uri_encoded_folder);
 
        curl_easy_setopt(curl, CURLOPT_URL, path.buf);
        strbuf_release(&path);