diff -r 4c89c7683fb6 -r 3c066d52342d src/server/httpparser.c --- /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 +#include + +#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(;irequest->method.length = i; + } else if(ns) { + if(line.ptr[i] != ' ') { + break; + } + } + } + + parser->request->uri.ptr = line.ptr + i; + ns = 0; + int s = i; + for(;irequest->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(;irequest->httpv.length = i - s; + } else if(ns) { + if(line.ptr[i] > 32) { + break; + } + } + } + + return 0; +}