--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/server/httpparser.c Tue Sep 06 22:27:32 2011 +0200
@@ -0,0 +1,196 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2011 Olaf Wintermann. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "httpparser.h"
+#include "nsapi.h"
+//include "request.h"
+
+
+HttpParser* http_parser_new(HTTPRequest *request) {
+ HttpParser *parser = malloc(sizeof(HttpParser));
+ parser->request = request;
+
+ parser->state = 0;
+ parser->start_line.ptr = (char*)request->netbuf->inbuf;
+ parser->start_line.length = 0;
+
+ return parser;
+}
+
+void http_parser_free(HttpParser *parser) {
+ free(parser);
+}
+
+int http_parser_process(HttpParser *parser) {
+ switch(parser->state) {
+ case 0: {
+ int r = get_start_line(parser);
+ switch(r) {
+ case 0: break;
+ default: return r;
+ }
+ parse_request_line(parser);
+ parser->state++;
+ }
+ case 1: {
+ return http_parser_parse_header(parser);
+ }
+ case 2: {
+ return 0;
+ }
+ }
+}
+
+int get_start_line(HttpParser *parser) {
+ netbuf *buf = parser->request->netbuf;
+ while(buf->pos < buf->cursize) {
+ unsigned char c = buf->inbuf[buf->pos];
+ if(c == '\n') {
+ if(buf->pos <= 1) {
+ // insufficient chars for request, return error
+ return 2;
+ }
+ if(buf->inbuf[buf->pos - 1] == '\r') {
+ parser->start_line.length = buf->pos;
+ } else {
+ parser->start_line.length = buf->pos + 1;
+ }
+ parser->start_line.ptr = (char*)buf->inbuf;
+ buf->pos++;
+ return 0;
+ }
+ buf->pos++;
+ }
+ return 1;
+}
+
+int http_parser_parse_header(HttpParser *parser) {
+ netbuf *buf = parser->request->netbuf;
+
+ parser->offset = buf->pos; // line offset
+ parser->name.ptr = NULL;
+ parser->value.ptr = NULL;
+ while(1) {
+ if(buf->pos >= buf->cursize) {
+ return 1;
+ }
+ char c = (char)buf->inbuf[buf->pos++];
+
+ if(c > 32) {
+ parser->wl = 0;
+ if(c == ':' && parser->value.ptr == NULL) {
+ parser->name.ptr = (char*)buf->inbuf + parser->offset;
+ buf->inbuf[buf->pos-1] = 0;
+ } else if(parser->name.ptr != NULL && parser->value.ptr == NULL) {
+ parser->value.ptr = (char*)buf->inbuf + buf->pos - 1;
+ }
+ } else if(c == '\n') {
+ if(parser->wl) {
+ // line contains only white space -> end of request
+ parser->state++;
+ return 0;
+ } else {
+ parser->offset = buf->pos;
+ if(parser->value.ptr != NULL) {
+ buf->inbuf[buf->pos-1] = 0;
+ // add header
+ header_add(
+ parser->request->headers,
+ parser->name.ptr,
+ parser->value.ptr);
+ } else {
+ // error: no value
+ return 2;
+ }
+ parser->name.ptr = NULL;
+ parser->value.ptr = NULL;
+ parser->wl = 1;
+ }
+ }
+ }
+}
+
+int parse_request_line(HttpParser *parser) {
+ sstr_t line = parser->start_line;
+ parser->request->request_line = line;
+
+ /*
+ * parse method, url and http version
+ */
+
+ int i = 0;
+ int ns = 0;
+
+ parser->request->method.ptr = line.ptr;
+ for(;i<line.length;i++) {
+ if(!ns && line.ptr[i] == ' ') {
+ ns = 1;
+ //line.ptr[i] = 0; // TODO: remove
+ parser->request->method.length = i;
+ } else if(ns) {
+ if(line.ptr[i] != ' ') {
+ break;
+ }
+ }
+ }
+
+ parser->request->uri.ptr = line.ptr + i;
+ ns = 0;
+ int s = i;
+ for(;i<line.length;i++) {
+ if(!ns && line.ptr[i] < 33) {
+ ns = 1;
+ //line.ptr[i] = 0; // TODO: remove
+ parser->request->uri.length = i - s;
+ } else if(ns) {
+ if(line.ptr[i] > 32) {
+ break;
+ }
+ }
+ }
+
+ parser->request->httpv.ptr = line.ptr + i;
+ ns = 0;
+ s = i;
+ for(;i<line.length;i++) {
+ if(!ns && line.ptr[i] < 33) {
+ ns = 1;
+ //line.ptr[i] = 0; // TODO: remove
+ parser->request->httpv.length = i - s;
+ } else if(ns) {
+ if(line.ptr[i] > 32) {
+ break;
+ }
+ }
+ }
+
+ return 0;
+}