mirror of
https://github.com/lammertb/libhttp.git
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Moved get_uri_type to own file
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Lammert Bies
1
Makefile
1
Makefile
@@ -52,6 +52,7 @@ LIB_SOURCES = src/libhttp.c \
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src/httplib_get_response.c \
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src/httplib_get_response_code_text.c \
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src/httplib_get_system_name.c \
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src/httplib_get_uri_type.c \
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src/httplib_getreq.c \
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src/httplib_master_thread.c \
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src/httplib_process_new_connection.c \
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127
src/httplib_get_uri_type.c
Normal file
127
src/httplib_get_uri_type.c
Normal file
@@ -0,0 +1,127 @@
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/*
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* Copyright (C) 2016 Lammert Bies
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* Copyright (c) 2013-2016 the Civetweb developers
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* Copyright (c) 2004-2013 Sergey Lyubka
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "libhttp-private.h"
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/*
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* int XX_httplib_get_uri_type( const char *uri );
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*
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* The function XX_httplib_get_uri_type() returns the URI type of an URI. This
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* can be any of the following values:
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*
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* return 0 for invalid uri,
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* return 1 for *,
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* return 2 for relative uri,
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* return 3 for absolute uri without port,
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* return 4 for absolute uri with port
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*/
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int XX_httplib_get_uri_type( const char *uri ) {
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int i;
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char *hostend, *portbegin, *portend;
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unsigned long port;
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/* According to the HTTP standard
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* http://www.w3.org/Protocols/rfc2616/rfc2616-sec5.html#sec5.1.2
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* URI can be an asterisk (*) or should start with slash (relative uri),
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* or it should start with the protocol (absolute uri). */
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if (uri[0] == '*' && uri[1] == '\0') {
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/* asterisk */
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return 1;
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}
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/* Valid URIs according to RFC 3986
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* (https://www.ietf.org/rfc/rfc3986.txt)
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* must only contain reserved characters :/?#[]@!$&'()*+,;=
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* and unreserved characters A-Z a-z 0-9 and -._~
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* and % encoded symbols.
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*/
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for (i = 0; uri[i] != 0; i++) {
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if (uri[i] < 33) {
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/* control characters and spaces are invalid */
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return 0;
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}
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if (uri[i] > 126) {
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/* non-ascii characters must be % encoded */
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return 0;
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} else {
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switch (uri[i]) {
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case '"': /* 34 */
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case '<': /* 60 */
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case '>': /* 62 */
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case '\\': /* 92 */
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case '^': /* 94 */
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case '`': /* 96 */
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case '{': /* 123 */
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case '|': /* 124 */
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case '}': /* 125 */
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return 0;
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default:
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/* character is ok */
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break;
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}
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}
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}
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/* A relative uri starts with a / character */
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if (uri[0] == '/') {
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/* relative uri */
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return 2;
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}
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/* It could be an absolute uri: */
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/* This function only checks if the uri is valid, not if it is
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* addressing the current server. So LibHTTP can also be used
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* as a proxy server. */
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for (i = 0; XX_httplib_abs_uri_protocols[i].proto != NULL; i++) {
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if (mg_strncasecmp(uri,
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XX_httplib_abs_uri_protocols[i].proto,
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XX_httplib_abs_uri_protocols[i].proto_len) == 0) {
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hostend = strchr(uri + XX_httplib_abs_uri_protocols[i].proto_len, '/');
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if (!hostend) {
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return 0;
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}
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portbegin = strchr(uri + XX_httplib_abs_uri_protocols[i].proto_len, ':');
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if (!portbegin) {
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return 3;
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}
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port = strtoul(portbegin + 1, &portend, 10);
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if ((portend != hostend) || !port || !XX_httplib_is_valid_port(port)) {
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return 0;
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}
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return 4;
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}
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}
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return 0;
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} /* XX_httplib_get_uri_type */
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@@ -9284,95 +9284,3 @@ const struct uriprot_tp XX_httplib_abs_uri_protocols[] = {{"http://", 7, 80},
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{"ws://", 5, 80},
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{"wss://", 6, 443},
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{NULL, 0, 0}};
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/* Check if the uri is valid.
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* return 0 for invalid uri,
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* return 1 for *,
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* return 2 for relative uri,
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* return 3 for absolute uri without port,
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* return 4 for absolute uri with port */
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int XX_httplib_get_uri_type( const char *uri ) {
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int i;
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char *hostend, *portbegin, *portend;
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unsigned long port;
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/* According to the HTTP standard
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* http://www.w3.org/Protocols/rfc2616/rfc2616-sec5.html#sec5.1.2
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* URI can be an asterisk (*) or should start with slash (relative uri),
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* or it should start with the protocol (absolute uri). */
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if (uri[0] == '*' && uri[1] == '\0') {
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/* asterisk */
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return 1;
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}
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/* Valid URIs according to RFC 3986
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* (https://www.ietf.org/rfc/rfc3986.txt)
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* must only contain reserved characters :/?#[]@!$&'()*+,;=
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* and unreserved characters A-Z a-z 0-9 and -._~
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* and % encoded symbols.
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*/
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for (i = 0; uri[i] != 0; i++) {
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if (uri[i] < 33) {
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/* control characters and spaces are invalid */
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return 0;
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}
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if (uri[i] > 126) {
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/* non-ascii characters must be % encoded */
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return 0;
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} else {
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switch (uri[i]) {
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case '"': /* 34 */
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case '<': /* 60 */
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case '>': /* 62 */
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case '\\': /* 92 */
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case '^': /* 94 */
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case '`': /* 96 */
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case '{': /* 123 */
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case '|': /* 124 */
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case '}': /* 125 */
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return 0;
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default:
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/* character is ok */
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break;
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}
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}
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}
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/* A relative uri starts with a / character */
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if (uri[0] == '/') {
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/* relative uri */
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return 2;
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}
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/* It could be an absolute uri: */
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/* This function only checks if the uri is valid, not if it is
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* addressing the current server. So LibHTTP can also be used
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* as a proxy server. */
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for (i = 0; XX_httplib_abs_uri_protocols[i].proto != NULL; i++) {
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if (mg_strncasecmp(uri,
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XX_httplib_abs_uri_protocols[i].proto,
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XX_httplib_abs_uri_protocols[i].proto_len) == 0) {
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hostend = strchr(uri + XX_httplib_abs_uri_protocols[i].proto_len, '/');
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if (!hostend) {
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return 0;
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}
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portbegin = strchr(uri + XX_httplib_abs_uri_protocols[i].proto_len, ':');
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if (!portbegin) {
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return 3;
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}
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port = strtoul(portbegin + 1, &portend, 10);
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if ((portend != hostend) || !port || !XX_httplib_is_valid_port(port)) {
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return 0;
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}
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return 4;
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}
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}
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return 0;
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} /* XX_httplib_get_uri_type */
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