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#include "uwsgi.h"
/*
QUERY_STRING management functions (mainly used by the internal routing subsystem)
*/
static char *check_qs(char *qs, uint16_t qs_len, char *key, uint16_t keylen, uint16_t *vallen) {
// search for the equal sign
char *equal = memchr(qs, '=', qs_len);
if (!equal) return NULL;
if (uwsgi_strncmp(key, keylen, qs, equal-qs)) {
return NULL;
}
qs_len -= (equal-qs)+1;
if (qs_len == 0) return NULL;
*vallen = qs_len;
return equal+1;
}
char *uwsgi_get_qs(struct wsgi_request *wsgi_req, char *key, uint16_t keylen, uint16_t *vallen) {
uint16_t i;
char *qs = wsgi_req->query_string;
uint16_t qs_len = 0;
char *ptr = wsgi_req->query_string;
//start splitting by ;
for(i=0;i<wsgi_req->query_string_len;i++) {
if (!qs) {
qs = ptr + i;
}
if (ptr[i] == '&') {
char *value = check_qs(qs, qs_len, key, keylen, vallen);
if (value) {
return value;
}
qs_len = 0;
qs = NULL;
}
else {
qs_len++;
}
}
if (qs_len > 0) {
char *value = check_qs(qs, qs_len, key, keylen, vallen);
if (value) {
return value;
}
}
return NULL;
}
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