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/*
* Copyright (C) the libgit2 contributors. All rights reserved.
*
* This file is part of libgit2, distributed under the GNU GPL v2 with
* a Linking Exception. For full terms see the included COPYING file.
*/
#include "net.h"
#include "netops.h"
#include <ctype.h>
#include "git2/errors.h"
#include "posix.h"
#include "buffer.h"
#include "http_parser.h"
#include "global.h"
#define DEFAULT_PORT_HTTP "80"
#define DEFAULT_PORT_HTTPS "443"
#define DEFAULT_PORT_GIT "9418"
#define DEFAULT_PORT_SSH "22"
static const char *default_port_for_scheme(const char *scheme)
{
if (strcmp(scheme, "http") == 0)
return DEFAULT_PORT_HTTP;
else if (strcmp(scheme, "https") == 0)
return DEFAULT_PORT_HTTPS;
else if (strcmp(scheme, "git") == 0)
return DEFAULT_PORT_GIT;
else if (strcmp(scheme, "ssh") == 0)
return DEFAULT_PORT_SSH;
return NULL;
}
int git_net_url_parse(git_net_url *url, const char *given)
{
struct http_parser_url u = {0};
bool has_scheme, has_host, has_port, has_path, has_query, has_userinfo;
git_buf scheme = GIT_BUF_INIT,
host = GIT_BUF_INIT,
port = GIT_BUF_INIT,
path = GIT_BUF_INIT,
username = GIT_BUF_INIT,
password = GIT_BUF_INIT,
query = GIT_BUF_INIT;
int error = GIT_EINVALIDSPEC;
if (http_parser_parse_url(given, strlen(given), false, &u)) {
git_error_set(GIT_ERROR_NET, "malformed URL '%s'", given);
goto done;
}
has_scheme = !!(u.field_set & (1 << UF_SCHEMA));
has_host = !!(u.field_set & (1 << UF_HOST));
has_port = !!(u.field_set & (1 << UF_PORT));
has_path = !!(u.field_set & (1 << UF_PATH));
has_query = !!(u.field_set & (1 << UF_QUERY));
has_userinfo = !!(u.field_set & (1 << UF_USERINFO));
if (has_scheme) {
const char *url_scheme = given + u.field_data[UF_SCHEMA].off;
size_t url_scheme_len = u.field_data[UF_SCHEMA].len;
git_buf_put(&scheme, url_scheme, url_scheme_len);
git__strntolower(scheme.ptr, scheme.size);
} else {
git_error_set(GIT_ERROR_NET, "malformed URL '%s'", given);
goto done;
}
if (has_host) {
const char *url_host = given + u.field_data[UF_HOST].off;
size_t url_host_len = u.field_data[UF_HOST].len;
git_buf_decode_percent(&host, url_host, url_host_len);
}
if (has_port) {
const char *url_port = given + u.field_data[UF_PORT].off;
size_t url_port_len = u.field_data[UF_PORT].len;
git_buf_put(&port, url_port, url_port_len);
} else {
const char *default_port = default_port_for_scheme(scheme.ptr);
if (default_port == NULL) {
git_error_set(GIT_ERROR_NET, "unknown scheme for URL '%s'", given);
goto done;
}
git_buf_puts(&port, default_port);
}
if (has_path) {
const char *url_path = given + u.field_data[UF_PATH].off;
size_t url_path_len = u.field_data[UF_PATH].len;
git_buf_put(&path, url_path, url_path_len);
} else {
git_buf_puts(&path, "/");
}
if (has_query) {
const char *url_query = given + u.field_data[UF_QUERY].off;
size_t url_query_len = u.field_data[UF_QUERY].len;
git_buf_decode_percent(&query, url_query, url_query_len);
}
if (has_userinfo) {
const char *url_userinfo = given + u.field_data[UF_USERINFO].off;
size_t url_userinfo_len = u.field_data[UF_USERINFO].len;
const char *colon = memchr(url_userinfo, ':', url_userinfo_len);
if (colon) {
const char *url_username = url_userinfo;
size_t url_username_len = colon - url_userinfo;
const char *url_password = colon + 1;
size_t url_password_len = url_userinfo_len - (url_username_len + 1);
git_buf_decode_percent(&username, url_username, url_username_len);
git_buf_decode_percent(&password, url_password, url_password_len);
} else {
git_buf_decode_percent(&username, url_userinfo, url_userinfo_len);
}
}
if (git_buf_oom(&scheme) ||
git_buf_oom(&host) ||
git_buf_oom(&port) ||
git_buf_oom(&path) ||
git_buf_oom(&query) ||
git_buf_oom(&username) ||
git_buf_oom(&password))
return -1;
url->scheme = git_buf_detach(&scheme);
url->host = git_buf_detach(&host);
url->port = git_buf_detach(&port);
url->path = git_buf_detach(&path);
url->query = git_buf_detach(&query);
url->username = git_buf_detach(&username);
url->password = git_buf_detach(&password);
error = 0;
done:
git_buf_dispose(&scheme);
git_buf_dispose(&host);
git_buf_dispose(&port);
git_buf_dispose(&path);
git_buf_dispose(&query);
git_buf_dispose(&username);
git_buf_dispose(&password);
return error;
}
int git_net_url_is_default_port(git_net_url *url)
{
return (strcmp(url->port, default_port_for_scheme(url->scheme)) == 0);
}
void git_net_url_swap(git_net_url *a, git_net_url *b)
{
git_net_url tmp = GIT_NET_URL_INIT;
memcpy(&tmp, a, sizeof(git_net_url));
memcpy(a, b, sizeof(git_net_url));
memcpy(b, &tmp, sizeof(git_net_url));
}
void git_net_url_dispose(git_net_url *url)
{
if (url->username)
git__memzero(url->username, strlen(url->username));
if (url->password)
git__memzero(url->password, strlen(url->password));
git__free(url->scheme); url->scheme = NULL;
git__free(url->host); url->host = NULL;
git__free(url->port); url->port = NULL;
git__free(url->path); url->path = NULL;
git__free(url->username); url->username = NULL;
git__free(url->password); url->password = NULL;
}
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