Re: [PATCH v3] imap-send: URI encode server folder

> From: Nicolas Morey-Chaisemartin <NMoreyChaisemartin@suse.com>
>
> 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>
> ---
> Changes in v3:
>     - updated commit message as suggested by Eric (convert past tense
>       to present tense) and added a few tweaks to it that striked me
>
> Eric Sunshine <sunshine@sunshineco.com> writes:
>> Thanks for taking up the slack.
>
> You're welcome. It was easier than waiting for this patch to be
> updated so it could get into 'pu' ;-)

>  imap-send.c | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/imap-send.c b/imap-send.c
> index 54e6a80fd..36c7c1b4f 100644
> --- 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);