491 lines
13 KiB
C++
491 lines
13 KiB
C++
// This file Copyright © 2009-2022 Mnemosyne LLC.
|
|
// It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
|
|
// or any future license endorsed by Mnemosyne LLC.
|
|
// License text can be found in the licenses/ folder.
|
|
|
|
#include <algorithm>
|
|
#include <cstdarg>
|
|
#include <cstring>
|
|
#include <list>
|
|
#include <string>
|
|
#include <string_view>
|
|
#include <thread>
|
|
#include <vector>
|
|
|
|
#ifdef __HAIKU__
|
|
#include <limits.h> /* PATH_MAX */
|
|
#endif
|
|
|
|
#ifdef _WIN32
|
|
#include <process.h> /* _beginthreadex(), _endthreadex() */
|
|
#include <windows.h>
|
|
#include <shlobj.h> /* SHGetKnownFolderPath(), FOLDERID_... */
|
|
#else
|
|
#include <unistd.h> /* getuid() */
|
|
#endif
|
|
|
|
#ifdef BUILD_MAC_CLIENT
|
|
#include <CoreFoundation/CoreFoundation.h>
|
|
#endif
|
|
|
|
#ifdef __HAIKU__
|
|
#include <FindDirectory.h>
|
|
#endif
|
|
|
|
#include <fmt/core.h>
|
|
|
|
#include "transmission.h"
|
|
|
|
#include "file.h"
|
|
#include "log.h"
|
|
#include "platform.h"
|
|
#include "session.h"
|
|
#include "tr-assert.h"
|
|
#include "utils.h"
|
|
|
|
using namespace std::literals;
|
|
|
|
// TODO: use remove this and use tr_strvPath() instead
|
|
static char* tr_buildPath(char const* first_element, ...)
|
|
{
|
|
// pass 1: allocate enough space for the string
|
|
va_list vl;
|
|
va_start(vl, first_element);
|
|
auto bufLen = size_t{};
|
|
for (char const* element = first_element; element != nullptr;)
|
|
{
|
|
bufLen += strlen(element) + 1;
|
|
element = va_arg(vl, char const*);
|
|
}
|
|
va_end(vl);
|
|
auto* const buf = tr_new(char, bufLen);
|
|
if (buf == nullptr)
|
|
{
|
|
return nullptr;
|
|
}
|
|
|
|
/* pass 2: build the string piece by piece */
|
|
char* pch = buf;
|
|
va_start(vl, first_element);
|
|
for (char const* element = first_element; element != nullptr;)
|
|
{
|
|
size_t const elementLen = strlen(element);
|
|
pch = std::copy_n(element, elementLen, pch);
|
|
*pch++ = TR_PATH_DELIMITER;
|
|
element = va_arg(vl, char const*);
|
|
}
|
|
va_end(vl);
|
|
|
|
// if nonempty, eat the unwanted trailing slash
|
|
if (pch != buf)
|
|
{
|
|
--pch;
|
|
}
|
|
|
|
// zero-terminate the string
|
|
*pch++ = '\0';
|
|
|
|
/* sanity checks & return */
|
|
TR_ASSERT(pch - buf == (ptrdiff_t)bufLen);
|
|
return buf;
|
|
}
|
|
|
|
/***
|
|
**** PATHS
|
|
***/
|
|
|
|
#ifndef _WIN32
|
|
#include <pwd.h>
|
|
#endif
|
|
|
|
#ifdef _WIN32
|
|
|
|
static char* win32_get_known_folder_ex(REFKNOWNFOLDERID folder_id, DWORD flags)
|
|
{
|
|
char* ret = nullptr;
|
|
PWSTR path;
|
|
|
|
if (SHGetKnownFolderPath(folder_id, flags | KF_FLAG_DONT_UNEXPAND, nullptr, &path) == S_OK)
|
|
{
|
|
ret = tr_win32_native_to_utf8(path, -1);
|
|
CoTaskMemFree(path);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static char* win32_get_known_folder(REFKNOWNFOLDERID folder_id)
|
|
{
|
|
return win32_get_known_folder_ex(folder_id, KF_FLAG_DONT_VERIFY);
|
|
}
|
|
|
|
#endif
|
|
|
|
static char const* getHomeDir()
|
|
{
|
|
static char const* home = nullptr;
|
|
|
|
if (home == nullptr)
|
|
{
|
|
home = tr_env_get_string("HOME", nullptr);
|
|
|
|
if (home == nullptr)
|
|
{
|
|
#ifdef _WIN32
|
|
|
|
home = win32_get_known_folder(FOLDERID_Profile);
|
|
|
|
#else
|
|
|
|
struct passwd pwent;
|
|
struct passwd* pw = nullptr;
|
|
char buf[4096];
|
|
getpwuid_r(getuid(), &pwent, buf, sizeof buf, &pw);
|
|
if (pw != nullptr)
|
|
{
|
|
home = tr_strdup(pw->pw_dir);
|
|
}
|
|
|
|
#endif
|
|
}
|
|
|
|
if (home == nullptr)
|
|
{
|
|
home = tr_strdup("");
|
|
}
|
|
}
|
|
|
|
return home;
|
|
}
|
|
|
|
void tr_setConfigDir(tr_session* session, std::string_view config_dir)
|
|
{
|
|
#if defined(__APPLE__) || defined(_WIN32)
|
|
auto constexpr ResumeSubdir = "Resume"sv;
|
|
auto constexpr TorrentSubdir = "Torrents"sv;
|
|
#else
|
|
auto constexpr ResumeSubdir = "resume"sv;
|
|
auto constexpr TorrentSubdir = "torrents"sv;
|
|
#endif
|
|
|
|
session->config_dir = config_dir;
|
|
session->resume_dir = tr_strvPath(config_dir, ResumeSubdir);
|
|
session->torrent_dir = tr_strvPath(config_dir, TorrentSubdir);
|
|
tr_sys_dir_create(session->resume_dir.c_str(), TR_SYS_DIR_CREATE_PARENTS, 0777);
|
|
tr_sys_dir_create(session->torrent_dir.c_str(), TR_SYS_DIR_CREATE_PARENTS, 0777);
|
|
}
|
|
|
|
char const* tr_sessionGetConfigDir(tr_session const* session)
|
|
{
|
|
return session->config_dir.c_str();
|
|
}
|
|
|
|
char const* tr_getTorrentDir(tr_session const* session)
|
|
{
|
|
return session->torrent_dir.c_str();
|
|
}
|
|
|
|
char const* tr_getDefaultConfigDir(char const* appname)
|
|
{
|
|
static char const* s = nullptr;
|
|
|
|
if (tr_str_is_empty(appname))
|
|
{
|
|
appname = "Transmission";
|
|
}
|
|
|
|
if (s == nullptr)
|
|
{
|
|
s = tr_env_get_string("TRANSMISSION_HOME", nullptr);
|
|
|
|
if (s == nullptr)
|
|
{
|
|
#ifdef __APPLE__
|
|
|
|
s = tr_buildPath(getHomeDir(), "Library", "Application Support", appname, nullptr);
|
|
|
|
#elif defined(_WIN32)
|
|
|
|
char* appdata = win32_get_known_folder(FOLDERID_LocalAppData);
|
|
s = tr_buildPath(appdata, appname, nullptr);
|
|
tr_free(appdata);
|
|
|
|
#elif defined(__HAIKU__)
|
|
|
|
char buf[PATH_MAX];
|
|
find_directory(B_USER_SETTINGS_DIRECTORY, -1, true, buf, sizeof(buf));
|
|
s = tr_buildPath(buf, appname, nullptr);
|
|
|
|
#else
|
|
|
|
char* const xdg_config_home = tr_env_get_string("XDG_CONFIG_HOME", nullptr);
|
|
|
|
if (xdg_config_home != nullptr)
|
|
{
|
|
s = tr_buildPath(xdg_config_home, appname, nullptr);
|
|
tr_free(xdg_config_home);
|
|
}
|
|
else
|
|
{
|
|
s = tr_buildPath(getHomeDir(), ".config", appname, nullptr);
|
|
}
|
|
|
|
#endif
|
|
}
|
|
}
|
|
|
|
return s;
|
|
}
|
|
|
|
static std::string getUserDirsFilename()
|
|
{
|
|
char* const config_home = tr_env_get_string("XDG_CONFIG_HOME", nullptr);
|
|
auto config_file = !tr_str_is_empty(config_home) ? tr_strvPath(config_home, "user-dirs.dirs") :
|
|
tr_strvPath(getHomeDir(), ".config", "user-dirs.dirs");
|
|
|
|
tr_free(config_home);
|
|
return config_file;
|
|
}
|
|
|
|
static std::string getXdgEntryFromUserDirs(std::string_view key)
|
|
{
|
|
auto content = std::vector<char>{};
|
|
if (!tr_loadFile(getUserDirsFilename(), content) && std::empty(content))
|
|
{
|
|
return {};
|
|
}
|
|
|
|
// search for key="val" and extract val
|
|
auto const search = tr_strvJoin(key, R"(=")");
|
|
auto begin = std::search(std::begin(content), std::end(content), std::begin(search), std::end(search));
|
|
if (begin == std::end(content))
|
|
{
|
|
return {};
|
|
}
|
|
std::advance(begin, std::size(search));
|
|
auto const end = std::find(begin, std::end(content), '"');
|
|
if (end == std::end(content))
|
|
{
|
|
return {};
|
|
}
|
|
auto val = std::string{ begin, end };
|
|
|
|
// if val contains "$HOME", replace that with getHomeDir()
|
|
auto constexpr Home = "$HOME"sv;
|
|
if (auto const it = std::search(std::begin(val), std::end(val), std::begin(Home), std::end(Home)); it != std::end(val))
|
|
{
|
|
val.replace(it, it + std::size(Home), std::string_view{ getHomeDir() });
|
|
}
|
|
|
|
return val;
|
|
}
|
|
|
|
char const* tr_getDefaultDownloadDir()
|
|
{
|
|
static char const* user_dir = nullptr;
|
|
|
|
if (user_dir == nullptr)
|
|
{
|
|
if (auto const xdg_user_dir = getXdgEntryFromUserDirs("XDG_DOWNLOAD_DIR"sv); !std::empty(xdg_user_dir))
|
|
{
|
|
user_dir = tr_strvDup(xdg_user_dir);
|
|
}
|
|
|
|
#ifdef _WIN32
|
|
if (user_dir == nullptr)
|
|
{
|
|
user_dir = win32_get_known_folder(FOLDERID_Downloads);
|
|
}
|
|
#endif
|
|
|
|
if (user_dir == nullptr)
|
|
{
|
|
#ifdef __HAIKU__
|
|
user_dir = tr_buildPath(getHomeDir(), "Desktop", nullptr);
|
|
#else
|
|
user_dir = tr_buildPath(getHomeDir(), "Downloads", nullptr);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
return user_dir;
|
|
}
|
|
|
|
/***
|
|
****
|
|
***/
|
|
|
|
static bool isWebClientDir(std::string_view path)
|
|
{
|
|
auto tmp = tr_strvPath(path, "index.html");
|
|
bool const ret = tr_sys_path_exists(tmp.c_str());
|
|
tr_logAddTrace(fmt::format("Searching for web interface file '{}'", tmp));
|
|
return ret;
|
|
}
|
|
|
|
char const* tr_getWebClientDir([[maybe_unused]] tr_session const* session)
|
|
{
|
|
static char const* s = nullptr;
|
|
|
|
if (s == nullptr)
|
|
{
|
|
s = tr_env_get_string("CLUTCH_HOME", nullptr);
|
|
|
|
if (s == nullptr)
|
|
{
|
|
s = tr_env_get_string("TRANSMISSION_WEB_HOME", nullptr);
|
|
}
|
|
|
|
if (s == nullptr)
|
|
{
|
|
#ifdef BUILD_MAC_CLIENT /* on Mac, look in the Application Support folder first, then in the app bundle. */
|
|
|
|
/* Look in the Application Support folder */
|
|
s = tr_buildPath(tr_sessionGetConfigDir(session), "public_html", nullptr);
|
|
|
|
if (!isWebClientDir(s))
|
|
{
|
|
tr_free(const_cast<char*>(s));
|
|
|
|
CFURLRef appURL = CFBundleCopyBundleURL(CFBundleGetMainBundle());
|
|
CFStringRef appRef = CFURLCopyFileSystemPath(appURL, kCFURLPOSIXPathStyle);
|
|
CFIndex const appStringLength = CFStringGetMaximumSizeOfFileSystemRepresentation(appRef);
|
|
|
|
char* appString = static_cast<char*>(tr_malloc(appStringLength));
|
|
bool const success = CFStringGetFileSystemRepresentation(appRef, appString, appStringLength);
|
|
TR_ASSERT(success);
|
|
|
|
CFRelease(appURL);
|
|
CFRelease(appRef);
|
|
|
|
/* Fallback to the app bundle */
|
|
s = tr_buildPath(appString, "Contents", "Resources", "public_html", nullptr);
|
|
|
|
if (!isWebClientDir(s))
|
|
{
|
|
tr_free(const_cast<char*>(s));
|
|
s = nullptr;
|
|
}
|
|
|
|
tr_free(appString);
|
|
}
|
|
|
|
#elif defined(_WIN32)
|
|
|
|
/* Generally, Web interface should be stored in a Web subdir of
|
|
* calling executable dir. */
|
|
|
|
static KNOWNFOLDERID const* const known_folder_ids[] = {
|
|
&FOLDERID_LocalAppData,
|
|
&FOLDERID_RoamingAppData,
|
|
&FOLDERID_ProgramData,
|
|
};
|
|
|
|
for (size_t i = 0; s == nullptr && i < TR_N_ELEMENTS(known_folder_ids); ++i)
|
|
{
|
|
char* dir = win32_get_known_folder(*known_folder_ids[i]);
|
|
char* path = tr_buildPath(dir, "Transmission", "Web", nullptr);
|
|
tr_free(dir);
|
|
|
|
if (isWebClientDir(path))
|
|
{
|
|
s = path;
|
|
}
|
|
else
|
|
{
|
|
tr_free(path);
|
|
}
|
|
}
|
|
|
|
if (s == nullptr) /* check calling module place */
|
|
{
|
|
wchar_t wide_module_path[MAX_PATH];
|
|
GetModuleFileNameW(nullptr, wide_module_path, TR_N_ELEMENTS(wide_module_path));
|
|
char* module_path = tr_win32_native_to_utf8(wide_module_path, -1);
|
|
auto const dir = tr_sys_path_dirname(module_path);
|
|
tr_free(module_path);
|
|
|
|
if (!std::empty(dir))
|
|
{
|
|
char* path = tr_buildPath(dir.c_str(), "Web", nullptr);
|
|
|
|
if (isWebClientDir(path))
|
|
{
|
|
s = path;
|
|
}
|
|
else
|
|
{
|
|
tr_free(path);
|
|
}
|
|
}
|
|
}
|
|
|
|
#else /* everyone else, follow the XDG spec */
|
|
|
|
auto candidates = std::list<std::string>{};
|
|
|
|
/* XDG_DATA_HOME should be the first in the list of candidates */
|
|
char* tmp = tr_env_get_string("XDG_DATA_HOME", nullptr);
|
|
if (!tr_str_is_empty(tmp))
|
|
{
|
|
candidates.emplace_back(tmp);
|
|
}
|
|
else
|
|
{
|
|
candidates.emplace_back(tr_strvPath(getHomeDir(), ".local"sv, "share"sv));
|
|
}
|
|
tr_free(tmp);
|
|
|
|
/* XDG_DATA_DIRS are the backup directories */
|
|
{
|
|
char const* const pkg = PACKAGE_DATA_DIR;
|
|
auto* xdg = tr_env_get_string("XDG_DATA_DIRS", "");
|
|
auto const buf = tr_strvJoin(pkg, ":", xdg, ":/usr/local/share:/usr/share");
|
|
tr_free(xdg);
|
|
|
|
auto sv = std::string_view{ buf };
|
|
auto token = std::string_view{};
|
|
while (tr_strvSep(&sv, &token, ':'))
|
|
{
|
|
token = tr_strvStrip(token);
|
|
if (!std::empty(token))
|
|
{
|
|
candidates.emplace_back(token);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* walk through the candidates & look for a match */
|
|
for (auto const& dir : candidates)
|
|
{
|
|
auto const path = tr_strvPath(dir, "transmission"sv, "public_html"sv);
|
|
if (isWebClientDir(path))
|
|
{
|
|
s = tr_strvDup(path);
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
return s;
|
|
}
|
|
|
|
std::string tr_getSessionIdDir()
|
|
{
|
|
#ifndef _WIN32
|
|
|
|
return std::string{ "/tmp"sv };
|
|
|
|
#else
|
|
|
|
char* program_data_dir = win32_get_known_folder_ex(FOLDERID_ProgramData, KF_FLAG_CREATE);
|
|
auto const result = tr_strvPath(program_data_dir, "Transmission");
|
|
tr_free(program_data_dir);
|
|
tr_sys_dir_create(result.c_str(), 0, 0);
|
|
return result;
|
|
|
|
#endif
|
|
}
|