http11_parser: accept '"' (double-quote), '<', and '>' characters in URLs

Some broken web browsers don't properly escape ", <, and > characters
in URLs, however these URLs to occasionally legitimate and sometimes
show up.

This patch was submitted by Eden Li here:
  http://rubyforge.org/pipermail/mongrel-users/2006-October/001845.html

This patch was accepted by Zed Shaw here:
  http://rubyforge.org/pipermail/mongrel-users/2006-October/001847.html


git-svn-id: svn+ssh://rubyforge.org/var/svn/mongrel/trunk@996 19e92222-5c0b-0410-8929-a290d50e31e9

1 files changed, 3 insertions, 2 deletions

diff --git a/ext/http11/http11_parser_common.rl b/ext/http11/http11_parser_common.rl
index 53c805f..ee970b1 100644
--- a/ext/http11/http11_parser_common.rl
+++ b/ext/http11/http11_parser_common.rl
@@ -11,11 +11,12 @@
   safe = ("$" | "-" | "_" | ".");
   extra = ("!" | "*" | "'" | "(" | ")" | ",");
   reserved = (";" | "/" | "?" | ":" | "@" | "&" | "=" | "+");
-  unsafe = (CTL | " " | "\"" | "#" | "%" | "<" | ">");
+  sorta_safe = ("\"" | "<" | ">");
+  unsafe = (CTL | " " | "#" | "%" | sorta_safe);
   national = any -- (alpha | digit | reserved | extra | safe | unsafe);
   unreserved = (alpha | digit | safe | extra | national);
   escape = ("%" xdigit xdigit);
-  uchar = (unreserved | escape);
+  uchar = (unreserved | escape | sorta_safe);
   pchar = (uchar | ":" | "@" | "&" | "=" | "+");
   tspecials = ("(" | ")" | "<" | ">" | "@" | "," | ";" | ":" | "\\" | "\"" | "/" | "[" | "]" | "?" | "=" | "{" | "}" | " " | "\t");