2013-10-25 19:35:40 +02:00
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/*
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2015-01-01 19:48:13 +01:00
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* Copyright (C) 2003-2015 The Music Player Daemon Project
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2013-10-25 19:35:40 +02:00
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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2014-02-28 19:02:23 +01:00
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#define __STDC_FORMAT_MACROS /* for PRIu64 */
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2013-10-25 19:35:40 +02:00
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#include "config.h"
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#include "FileCommands.hxx"
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2015-08-11 22:11:28 +02:00
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#include "Request.hxx"
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2013-10-25 19:35:40 +02:00
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#include "CommandError.hxx"
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#include "protocol/Ack.hxx"
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#include "protocol/Result.hxx"
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2014-01-24 00:26:53 +01:00
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#include "client/Client.hxx"
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2014-12-06 00:08:08 +01:00
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#include "util/ConstBuffer.hxx"
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2013-10-25 19:35:40 +02:00
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#include "util/CharUtil.hxx"
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2013-12-29 14:40:24 +01:00
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#include "util/UriUtil.hxx"
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2013-10-25 19:35:40 +02:00
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#include "util/Error.hxx"
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#include "tag/TagHandler.hxx"
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2013-10-26 15:33:53 +02:00
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#include "tag/ApeTag.hxx"
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#include "tag/TagId3.hxx"
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2013-12-29 14:40:24 +01:00
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#include "TagStream.hxx"
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2013-10-25 19:35:40 +02:00
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#include "TagFile.hxx"
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2014-02-07 18:38:10 +01:00
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#include "storage/StorageInterface.hxx"
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2013-10-25 19:35:40 +02:00
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#include "fs/AllocatedPath.hxx"
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2015-02-28 20:42:50 +01:00
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#include "fs/FileInfo.hxx"
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2014-10-01 23:38:17 +02:00
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#include "fs/DirectoryReader.hxx"
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2014-02-28 19:02:23 +01:00
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#include "TimePrint.hxx"
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2013-12-29 14:40:24 +01:00
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#include "ls.hxx"
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2013-10-25 19:35:40 +02:00
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#include <assert.h>
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2014-02-28 19:02:23 +01:00
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#include <sys/stat.h>
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#include <inttypes.h> /* for PRIu64 */
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gcc_pure
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static bool
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2015-02-28 22:03:40 +01:00
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SkipNameFS(PathTraitsFS::const_pointer name_fs)
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2014-02-28 19:02:23 +01:00
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{
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return name_fs[0] == '.' &&
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(name_fs[1] == 0 ||
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(name_fs[1] == '.' && name_fs[2] == 0));
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}
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gcc_pure
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static bool
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2015-03-03 12:42:27 +01:00
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skip_path(Path name_fs)
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2014-02-28 19:02:23 +01:00
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{
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2015-03-03 12:42:27 +01:00
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return name_fs.HasNewline();
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2014-02-28 19:02:23 +01:00
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}
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2014-03-14 08:58:43 +01:00
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#if defined(WIN32) && GCC_CHECK_VERSION(4,6)
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/* PRIu64 causes bogus compiler warning */
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wformat"
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#pragma GCC diagnostic ignored "-Wformat-extra-args"
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#endif
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2014-02-28 19:02:23 +01:00
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CommandResult
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handle_listfiles_local(Client &client, const char *path_utf8)
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{
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const auto path_fs = AllocatedPath::FromUTF8(path_utf8);
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if (path_fs.IsNull()) {
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command_error(client, ACK_ERROR_NO_EXIST,
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"unsupported file name");
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return CommandResult::ERROR;
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}
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Error error;
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if (!client.AllowFile(path_fs, error))
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return print_error(client, error);
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DirectoryReader reader(path_fs);
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if (reader.HasFailed()) {
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error.FormatErrno("Failed to open '%s'", path_utf8);
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return print_error(client, error);
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}
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while (reader.ReadEntry()) {
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const Path name_fs = reader.GetEntry();
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2015-03-03 12:42:27 +01:00
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if (SkipNameFS(name_fs.c_str()) || skip_path(name_fs))
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2014-02-28 19:02:23 +01:00
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continue;
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std::string name_utf8 = name_fs.ToUTF8();
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if (name_utf8.empty())
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continue;
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const AllocatedPath full_fs =
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AllocatedPath::Build(path_fs, name_fs);
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2015-02-28 20:42:50 +01:00
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FileInfo fi;
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if (!GetFileInfo(full_fs, fi, false))
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2014-02-28 19:02:23 +01:00
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continue;
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2015-02-28 20:42:50 +01:00
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if (fi.IsRegular())
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2014-02-28 19:02:23 +01:00
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client_printf(client, "file: %s\n"
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"size: %" PRIu64 "\n",
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name_utf8.c_str(),
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2015-02-28 20:42:50 +01:00
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fi.GetSize());
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else if (fi.IsDirectory())
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2014-02-28 19:02:23 +01:00
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client_printf(client, "directory: %s\n",
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name_utf8.c_str());
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2015-02-28 20:58:48 +01:00
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else
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continue;
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2014-02-28 19:02:23 +01:00
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2015-02-28 20:42:50 +01:00
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time_print(client, "Last-Modified", fi.GetModificationTime());
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2014-02-28 19:02:23 +01:00
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}
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return CommandResult::OK;
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}
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2013-10-25 19:35:40 +02:00
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2014-03-14 08:58:43 +01:00
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#if defined(WIN32) && GCC_CHECK_VERSION(4,6)
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#pragma GCC diagnostic pop
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#endif
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2013-10-25 19:35:40 +02:00
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gcc_pure
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static bool
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IsValidName(const char *p)
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{
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if (!IsAlphaASCII(*p))
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return false;
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while (*++p) {
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const char ch = *p;
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if (!IsAlphaASCII(ch) && ch != '_' && ch != '-')
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return false;
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}
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return true;
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}
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gcc_pure
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static bool
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IsValidValue(const char *p)
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{
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while (*p) {
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const char ch = *p++;
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2013-10-26 16:03:53 +02:00
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if ((unsigned char)ch < 0x20)
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2013-10-25 19:35:40 +02:00
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return false;
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}
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return true;
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}
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static void
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print_pair(const char *key, const char *value, void *ctx)
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{
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Client &client = *(Client *)ctx;
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if (IsValidName(key) && IsValidValue(value))
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client_printf(client, "%s: %s\n", key, value);
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}
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static constexpr tag_handler print_comment_handler = {
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nullptr,
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nullptr,
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print_pair,
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};
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2013-12-29 14:40:24 +01:00
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static CommandResult
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read_stream_comments(Client &client, const char *uri)
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{
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if (!uri_supported_scheme(uri)) {
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command_error(client, ACK_ERROR_NO_EXIST,
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"unsupported URI scheme");
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return CommandResult::ERROR;
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}
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if (!tag_stream_scan(uri, print_comment_handler, &client)) {
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command_error(client, ACK_ERROR_NO_EXIST,
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"Failed to load file");
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return CommandResult::ERROR;
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}
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return CommandResult::OK;
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}
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2014-02-07 18:33:43 +01:00
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static CommandResult
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read_file_comments(Client &client, const Path path_fs)
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{
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if (!tag_file_scan(path_fs, print_comment_handler, &client)) {
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command_error(client, ACK_ERROR_NO_EXIST,
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"Failed to load file");
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return CommandResult::ERROR;
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}
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tag_ape_scan2(path_fs, &print_comment_handler, &client);
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tag_id3_scan(path_fs, &print_comment_handler, &client);
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return CommandResult::OK;
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}
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2015-02-09 07:55:06 +01:00
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static const char *
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translate_uri(const char *uri)
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{
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if (memcmp(uri, "file:///", 8) == 0)
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/* drop the "file://", leave only an absolute path
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(starting with a slash) */
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return uri + 7;
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return uri;
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}
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2013-10-25 19:35:40 +02:00
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CommandResult
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2015-08-11 22:11:28 +02:00
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handle_read_comments(Client &client, Request args)
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2013-10-25 19:35:40 +02:00
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{
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2014-12-06 00:08:08 +01:00
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assert(args.size == 1);
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2015-02-09 07:55:06 +01:00
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const char *const uri = translate_uri(args.front());
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2013-10-25 19:35:40 +02:00
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if (memcmp(uri, "file:///", 8) == 0) {
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/* read comments from arbitrary local file */
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const char *path_utf8 = uri + 7;
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2014-02-07 18:33:43 +01:00
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AllocatedPath path_fs = AllocatedPath::FromUTF8(path_utf8);
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2013-10-25 19:35:40 +02:00
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if (path_fs.IsNull()) {
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command_error(client, ACK_ERROR_NO_EXIST,
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"unsupported file name");
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return CommandResult::ERROR;
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}
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Error error;
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2014-02-02 13:59:07 +01:00
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if (!client.AllowFile(path_fs, error))
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2013-10-25 19:35:40 +02:00
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return print_error(client, error);
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2014-02-07 18:33:43 +01:00
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return read_file_comments(client, path_fs);
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2013-12-29 14:40:24 +01:00
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} else if (uri_has_scheme(uri)) {
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return read_stream_comments(client, uri);
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2014-02-03 23:09:25 +01:00
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} else if (!PathTraitsUTF8::IsAbsolute(uri)) {
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2014-01-30 20:29:48 +01:00
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#ifdef ENABLE_DATABASE
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2014-02-07 18:38:10 +01:00
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const Storage *storage = client.GetStorage();
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if (storage == nullptr) {
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#endif
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command_error(client, ACK_ERROR_NO_EXIST,
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"No database");
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return CommandResult::ERROR;
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#ifdef ENABLE_DATABASE
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}
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2014-02-07 18:41:42 +01:00
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{
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AllocatedPath path_fs = storage->MapFS(uri);
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if (!path_fs.IsNull())
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return read_file_comments(client, path_fs);
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2013-10-25 19:35:40 +02:00
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}
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2014-02-07 18:33:43 +01:00
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2014-02-07 18:41:42 +01:00
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{
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const std::string uri2 = storage->MapUTF8(uri);
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if (uri_has_scheme(uri2.c_str()))
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return read_stream_comments(client,
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uri2.c_str());
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}
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command_error(client, ACK_ERROR_NO_EXIST, "No such file");
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return CommandResult::ERROR;
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2014-01-30 20:29:48 +01:00
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#endif
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2013-10-25 19:35:40 +02:00
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} else {
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command_error(client, ACK_ERROR_NO_EXIST, "No such file");
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return CommandResult::ERROR;
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}
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}
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