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Stricter mg_http_parse()

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cpq committed 2021-02-09 21:16:33 +00:00
1 parent 42bc7b1f47
commit 0a9303bb07
3 files changed
+23 -10
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src/http.c
+6 -4
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@@ -106,12 +106,12 @@ int mg_http_get_request_len(const unsigned char *buf, size_t buf_len) {
return 0;
}
static const char *skip(const char *s, const char *end, const char *delims,
static const char *skip(const char *s, const char *e, const char *d,
struct mg_str *v) {
v->ptr = s;
while (s < end && strchr(delims, *(unsigned char *) s) == NULL) s++;
while (s < e && *s != '\n' && strchr(d, *s) == NULL) s++;
v->len = s - v->ptr;
while (s < end && strchr(delims, *(unsigned char *) s) != NULL) s++;
while (s < e && strchr(d, *s) != NULL) s++;
return s;
}
@@ -159,7 +159,9 @@ int mg_http_parse(const char *s, size_t len, struct mg_http_message *hm) {
s = skip(s, end, " ", &hm->method);
s = skip(s, end, " ", &hm->uri);
s = skip(s, end, "\r\n", &hm->proto);
if (hm->uri.ptr <= hm->method.ptr || hm->proto.ptr <= hm->uri.ptr) return -1;
// Sanity check
if (hm->method.len == 0 || hm->uri.len == 0 || hm->proto.len == 0) return -1;
// If URI contains '?' character, setup query string
if ((qs = (const char *) memchr(hm->uri.ptr, '?', hm->uri.len)) != NULL) {