lokinet/libhttp/uri.c
Rick V 15353e5418
commit a partially platform-independent libhttps
(platform functions still not fully separated)
2019-04-06 23:04:17 -05:00

141 lines
3.4 KiB
C

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