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make header field names case insensitive

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kento2 2026-09-08 19:13:17 +02:00
parent 584aad56b8
commit 107ec67105
1 changed files with 15 additions and 3 deletions
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18
parse_token.c
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@ -2,11 +2,21 @@
#include <libowfat/buffer.h> #include <libowfat/buffer.h>
#include <libowfat/errmsg.h> #include <libowfat/errmsg.h>
#include <libowfat/str.h> #include <libowfat/str.h>
#include <ctype.h>
#define AUTH_HEADER "Authorization: Bearer " #define AUTH_HEADER "authorization: bearer "
#define AUTH_HEADER_LEN str_len(AUTH_HEADER) #define AUTH_HEADER_LEN str_len(AUTH_HEADER)
// TODO make case insensitive according to https://www.rfc-editor.org/info/rfc7230/#section-3.2 static int startswithlower(stralloc *sa, char *prefix, size_t prefixlen)
{
size_t i;
if (sa->len < prefixlen) return 0;
for (i=0;i<prefixlen;i++)
if (tolower(sa->s[i]) != prefix[i])
return 0;
return 1;
}
int parse_token(buffer *b, stralloc *result) int parse_token(buffer *b, stralloc *result)
{ {
stralloc line; stralloc line;
@ -17,7 +27,9 @@ int parse_token(buffer *b, stralloc *result)
if (r==0) break; if (r==0) break;
if (r<0) { carpsys("read line"); goto err; } if (r<0) { carpsys("read line"); goto err; }
if (stralloc_starts(&line,AUTH_HEADER)) { /* header field names are case-sensitive
* https://www.rfc-editor.org/info/rfc7230/#section-3.2 */
if (startswithlower(&line,AUTH_HEADER,AUTH_HEADER_LEN)) {
stralloc_chomp(&line); stralloc_chomp(&line);
if (!stralloc_copyb(result, line.s+AUTH_HEADER_LEN, if (!stralloc_copyb(result, line.s+AUTH_HEADER_LEN,
line.len-AUTH_HEADER_LEN) line.len-AUTH_HEADER_LEN)