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net/url: Correctly escape URL as per RFC 3986

The shouldEscape function did not correctly escape the reserved characters listed in RFC 3986 §2.2, breaking some strict web servers.
Fixes #3433.

R=rsc
CC=golang-dev
https://golang.org/cl/5970050
This commit is contained in:
Stéphane Travostino 2012-04-05 13:23:08 -04:00 committed by Russ Cox
parent 81f534b216
commit 56024fa64e
2 changed files with 6 additions and 6 deletions

View File

@ -61,16 +61,16 @@ func (e EscapeError) Error() string {
}
// Return true if the specified character should be escaped when
// appearing in a URL string, according to RFC 2396.
// appearing in a URL string, according to RFC 3986.
// When 'all' is true the full range of reserved characters are matched.
func shouldEscape(c byte, mode encoding) bool {
// RFC 2396 §2.3 Unreserved characters (alphanum)
// §2.3 Unreserved characters (alphanum)
if 'A' <= c && c <= 'Z' || 'a' <= c && c <= 'z' || '0' <= c && c <= '9' {
return false
}
// TODO: Update the character sets after RFC 3986.
switch c {
case '-', '_', '.', '!', '~', '*', '\'', '(', ')': // §2.3 Unreserved characters (mark)
case '-', '_', '.', '~': // §2.3 Unreserved characters (mark)
return false
case '$', '&', '+', ',', '/', ':', ';', '=', '?', '@': // §2.2 Reserved characters (reserved)

View File

@ -394,8 +394,8 @@ var escapeTests = []EscapeTest{
nil,
},
{
" ?&=#+%!<>#\"{}|\\^[]`☺\t",
"+%3F%26%3D%23%2B%25!%3C%3E%23%22%7B%7D%7C%5C%5E%5B%5D%60%E2%98%BA%09",
" ?&=#+%!<>#\"{}|\\^[]`☺\t:/@$'()*,;",
"+%3F%26%3D%23%2B%25%21%3C%3E%23%22%7B%7D%7C%5C%5E%5B%5D%60%E2%98%BA%09%3A%2F%40%24%27%28%29%2A%2C%3B",
nil,
},
}