curl_easy_escape: don't escape "unreserved" characters

According to RFC3986 section 2.3 the letters -, ., _ and ~ should not be
percent-encoded.

Reported by: Miguel Diaz
Bug: http://curl.haxx.se/mail/lib-2010-09/0227.html
This commit is contained in:
Daniel Stenberg 2010-09-28 23:46:14 +02:00
parent ed4eecc05e
commit 5df13c3173
3 changed files with 9 additions and 6 deletions

View File

@ -43,8 +43,10 @@
#include "memdebug.h"
/* Portable character check (remember EBCDIC). Do not use isalnum() because
its behavior is altered by the current locale. */
static bool Curl_isalnum(unsigned char in)
its behavior is altered by the current locale.
See http://tools.ietf.org/html/rfc3986#section-2.3
*/
static bool Curl_isunreserved(unsigned char in)
{
switch (in) {
case '0': case '1': case '2': case '3': case '4':
@ -59,6 +61,7 @@ static bool Curl_isalnum(unsigned char in)
case 'K': case 'L': case 'M': case 'N': case 'O':
case 'P': case 'Q': case 'R': case 'S': case 'T':
case 'U': case 'V': case 'W': case 'X': case 'Y': case 'Z':
case '-': case '.': case '_': case '~':
return TRUE;
default:
break;
@ -100,7 +103,7 @@ char *curl_easy_escape(CURL *handle, const char *string, int inlength)
while(length--) {
in = *string;
if (Curl_isalnum(in)) {
if (Curl_isunreserved(in)) {
/* just copy this */
ns[strindex++]=in;
}

View File

@ -44,10 +44,10 @@ POST /1015 HTTP/1.1
User-Agent: curl/7.17.2-CVS (i686-pc-linux-gnu) libcurl/7.17.2-CVS OpenSSL/0.9.8g zlib/1.2.3.3 c-ares/1.5.2-CVS libidn/1.1 libssh2/0.19.0-C
Host: %HOSTIP:%HTTPPORT
Accept: */*
Content-Length: 141
Content-Length: 133
Content-Type: application/x-www-form-urlencoded
my%20name%20is%20moo%5B%5D&y e s=s%5Fi%5Fr&v_alue=content%20to%20%5F%3F%21%23%24%27%7C%3C%3E%0A&content%20to%20%5F%3F%21%23%24%27%7C%3C%3E%0A
my%20name%20is%20moo%5B%5D&y e s=s_i_r&v_alue=content%20to%20_%3F%21%23%24%27%7C%3C%3E%0A&content%20to%20_%3F%21%23%24%27%7C%3C%3E%0A
</protocol>
</verify>
</testcase>

View File

@ -39,7 +39,7 @@ a few bytes
^User-Agent:.*
</strip>
<protocol>
PUT /we/want/58te%5B%5Dst%2Etxt HTTP/1.1
PUT /we/want/58te%5B%5Dst.txt HTTP/1.1
Host: %HOSTIP:%HTTPPORT
Accept: */*
Content-Length: 12