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139 lines
3.5 KiB
C
139 lines
3.5 KiB
C
/*
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* Copyright (c)2018-2019 Rick V. All rights reserved.
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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*------------------------------------------------------------------------------
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* uri parsing functions
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <assert.h>
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#include "internal.h"
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#ifdef _WIN32
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#include <windows.h>
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#include <wincrypt.h>
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#else
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netdb.h>
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#endif
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void free_parsed_url(url_parsed)
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url_t *url_parsed;
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{
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if (url_parsed->protocol)
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free(url_parsed->protocol);
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if (url_parsed->host)
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free(url_parsed->host);
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if (url_parsed->path)
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free(url_parsed->path);
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if (url_parsed->query_string)
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free(url_parsed->query_string);
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free(url_parsed);
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}
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parse_url(url, verify_host, parsed_url)
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char *url;
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bool verify_host;
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url_t *parsed_url;
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{
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char *local_url, *token, *token_host, *host_port, *host_ip, *token_ptr;
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char *host_token_ptr, *path = NULL;
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/* Copy our string */
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local_url = strdup(url);
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token = strtok_r(local_url, ":", &token_ptr);
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parsed_url->protocol = strdup(token);
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/* Host:Port */
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token = strtok_r(NULL, "/", &token_ptr);
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if (token)
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host_port = strdup(token);
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else
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host_port = (char *) calloc(1, sizeof(char));
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token_host = strtok_r(host_port, ":", &host_token_ptr);
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parsed_url->host_ip = NULL;
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if (token_host) {
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parsed_url->host = strdup(token_host);
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if (verify_host) {
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struct hostent *host;
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host = gethostbyname(parsed_url->host);
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if (host != NULL) {
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parsed_url->host_ip = inet_ntoa(* (struct in_addr *) host->h_addr);
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parsed_url->host_exists = 1;
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} else {
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parsed_url->host_exists = 0;
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}
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} else {
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parsed_url->host_exists = -1;
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}
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} else {
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parsed_url->host_exists = -1;
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parsed_url->host = NULL;
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}
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/* Port */
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token_host = strtok_r(NULL, ":", &host_token_ptr);
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if (token_host)
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parsed_url->port = atoi(token_host);
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else
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parsed_url->port = 0;
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token_host = strtok_r(NULL, ":", &host_token_ptr);
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assert(token_host == NULL);
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token = strtok_r(NULL, "?", &token_ptr);
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parsed_url->path = NULL;
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if (token) {
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path = (char *) realloc(path, sizeof(char) * (strlen(token) + 2));
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memset(path, 0, sizeof(char) * (strlen(token)+2));
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strcpy(path, "/");
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strcat(path, token);
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parsed_url->path = strdup(path);
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free(path);
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} else {
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parsed_url->path = (char *) malloc(sizeof(char) * 2);
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strcpy(parsed_url->path, "/");
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}
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token = strtok_r(NULL, "?", &token_ptr);
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if (token) {
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parsed_url->query_string = (char *) malloc(sizeof(char) * (strlen(token) + 1));
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strncpy(parsed_url->query_string, token, strlen(token));
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} else {
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parsed_url->query_string = NULL;
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}
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token = strtok_r(NULL, "?", &token_ptr);
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assert(token == NULL);
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free(local_url);
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free(host_port);
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return 0;
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}
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