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Process FastCGI header fields

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Lorenz Stechauner
2020-12-28 13:18:38 +01:00
parent 156c7d6621
commit 7cb4f40d22
4 changed files with 129 additions and 38 deletions
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30
src/fastcgi.c
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@@ -349,7 +349,35 @@ int fastcgi_header(fastcgi_conn *conn, http_res *res, char *err_msg) {
conn->out_len = content_len;
conn->out_off = (unsigned short) (strstr(content, "\r\n\r\n") - content + 4);
// TODO process headers and add fields to res
char *buf = content;
unsigned short header_len = conn->out_off;
if (header_len <= 0) {
print(ERR_STR "Unable to parse header: End of header not found" CLR_STR);
return 1;
}
for (int i = 0; i < header_len; i++) {
if ((buf[i] >= 0x00 && buf[i] <= 0x1F && buf[i] != '\r' && buf[i] != '\n') || buf[i] == 0x7F) {
print(ERR_STR "Unable to parse header: Header contains illegal characters" CLR_STR);
return 2;
}
}
char *ptr = buf;
while (header_len != (ptr - buf)) {
char *pos0 = strstr(ptr, "\r\n");
if (pos0 == NULL) {
print(ERR_STR "Unable to parse header: Invalid header format" CLR_STR);
return 1;
}
ret = http_parse_header_field(&res->hdr, ptr, pos0);
if (ret != 0) return ret;
if (pos0[2] == '\r' && pos0[3] == '\n') {
return 0;
}
ptr = pos0 + 2;
}
return 0;
}