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-rw-r--r--deps/llhttp/src/http.c120
1 files changed, 120 insertions, 0 deletions
diff --git a/deps/llhttp/src/http.c b/deps/llhttp/src/http.c
new file mode 100644
index 0000000000..67834c2d37
--- /dev/null
+++ b/deps/llhttp/src/http.c
@@ -0,0 +1,120 @@
+#include <stdio.h>
+#ifndef LLHTTP__TEST
+# include "llhttp.h"
+#else
+# define llhttp_t llparse_t
+#endif /* */
+
+int llhttp_message_needs_eof(const llhttp_t* parser);
+int llhttp_should_keep_alive(const llhttp_t* parser);
+
+int llhttp__before_headers_complete(llhttp_t* parser, const char* p,
+ const char* endp) {
+ /* Set this here so that on_headers_complete() callbacks can see it */
+ if ((parser->flags & F_UPGRADE) &&
+ (parser->flags & F_CONNECTION_UPGRADE)) {
+ /* For responses, "Upgrade: foo" and "Connection: upgrade" are
+ * mandatory only when it is a 101 Switching Protocols response,
+ * otherwise it is purely informational, to announce support.
+ */
+ parser->upgrade =
+ (parser->type == HTTP_REQUEST || parser->status_code == 101);
+ } else {
+ parser->upgrade = (parser->method == HTTP_CONNECT);
+ }
+ return 0;
+}
+
+
+/* Return values:
+ * 0 - No body, `restart`, message_complete
+ * 1 - CONNECT request, `restart`, message_complete, and pause
+ * 2 - chunk_size_start
+ * 3 - body_identity
+ * 4 - body_identity_eof
+ */
+int llhttp__after_headers_complete(llhttp_t* parser, const char* p,
+ const char* endp) {
+ int hasBody;
+
+ hasBody = parser->flags & F_CHUNKED || parser->content_length > 0;
+ if (parser->upgrade && (parser->method == HTTP_CONNECT ||
+ (parser->flags & F_SKIPBODY) || !hasBody)) {
+ /* Exit, the rest of the message is in a different protocol. */
+ return 1;
+ }
+
+ if (parser->flags & F_SKIPBODY) {
+ return 0;
+ } else if (parser->flags & F_CHUNKED) {
+ /* chunked encoding - ignore Content-Length header */
+ return 2;
+ } else {
+ if (!(parser->flags & F_CONTENT_LENGTH)) {
+ if (!llhttp_message_needs_eof(parser)) {
+ /* Assume content-length 0 - read the next */
+ return 0;
+ } else {
+ /* Read body until EOF */
+ return 4;
+ }
+ } else if (parser->content_length == 0) {
+ /* Content-Length header given but zero: Content-Length: 0\r\n */
+ return 0;
+ } else {
+ /* Content-Length header given and non-zero */
+ return 3;
+ }
+ }
+}
+
+
+int llhttp__after_message_complete(llhttp_t* parser, const char* p,
+ const char* endp) {
+ int should_keep_alive;
+
+ should_keep_alive = llhttp_should_keep_alive(parser);
+ parser->flags = 0;
+ parser->finish = HTTP_FINISH_SAFE;
+
+ /* NOTE: this is ignored in loose parsing mode */
+ return should_keep_alive;
+}
+
+
+int llhttp_message_needs_eof(const llhttp_t* parser) {
+ if (parser->type == HTTP_REQUEST) {
+ return 0;
+ }
+
+ /* See RFC 2616 section 4.4 */
+ if (parser->status_code / 100 == 1 || /* 1xx e.g. Continue */
+ parser->status_code == 204 || /* No Content */
+ parser->status_code == 304 || /* Not Modified */
+ (parser->flags & F_SKIPBODY)) { /* response to a HEAD request */
+ return 0;
+ }
+
+ if (parser->flags & (F_CHUNKED | F_CONTENT_LENGTH)) {
+ return 0;
+ }
+
+ return 1;
+}
+
+
+int llhttp_should_keep_alive(const llhttp_t* parser) {
+ if (parser->http_major > 0 && parser->http_minor > 0) {
+ /* HTTP/1.1 */
+ if (parser->flags & F_CONNECTION_CLOSE) {
+ return 0;
+ }
+ } else {
+ /* HTTP/1.0 or earlier */
+ if (!(parser->flags & F_CONNECTION_KEEP_ALIVE)) {
+ return 0;
+ }
+ }
+
+ return !llhttp_message_needs_eof(parser);
+}