From 52e605caf573fa20fdd4fbac5e1cc69b7740b1f5 Mon Sep 17 00:00:00 2001 From: Lars Hjemli Date: Thu, 4 Jan 2007 16:53:03 +0100 Subject: Handle %xx encoding in querystring Convert valid %xx expressions in querystring to ascii, ignore invalid expressions (i.e. eat the three characters %xx). Signed-off-by: Lars Hjemli --- parsing.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'parsing.c') diff --git a/parsing.c b/parsing.c index 1b22fcf..4173dd4 100644 --- a/parsing.c +++ b/parsing.c @@ -79,6 +79,25 @@ int cgit_read_config(const char *filename, configfn fn) return ret; } +char *convert_query_hexchar(char *txt) +{ + int d1, d2; + if (strlen(txt) < 3) { + *txt = '\0'; + return txt-1; + } + d1 = hextoint(*(txt+1)); + d2 = hextoint(*(txt+2)); + if (d1<0 || d2<0) { + strcpy(txt, txt+3); + return txt-1; + } else { + *txt = d1 * 16 + d2; + strcpy(txt+1, txt+3); + return txt; + } +} + int cgit_parse_query(char *txt, configfn fn) { char *t, *value = NULL, c; @@ -94,6 +113,8 @@ int cgit_parse_query(char *txt, configfn fn) value = t+1; } else if (c=='+') { *t = ' '; + } else if (c=='%') { + t = convert_query_hexchar(t); } else if (c=='&') { *t = '\0'; (*fn)(txt, value); -- cgit v1.2.3-24-g4f1b