123 lines
2.9 KiB
C++
123 lines
2.9 KiB
C++
/*
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* Copyright (C) 2003-2013 The Music Player Daemon Project
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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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#include "config.h"
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#include "FileCommands.hxx"
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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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#include "ClientFile.hxx"
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#include "Client.hxx"
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#include "util/CharUtil.hxx"
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#include "util/Error.hxx"
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#include "tag/TagHandler.hxx"
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#include "TagFile.hxx"
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#include "Mapper.hxx"
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#include "fs/AllocatedPath.hxx"
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#include <assert.h>
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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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if ((unsigned char)ch >= 0x20)
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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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CommandResult
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handle_read_comments(Client &client, gcc_unused int argc, char *argv[])
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{
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assert(argc == 2);
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const char *const uri = argv[1];
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AllocatedPath path_fs = AllocatedPath::Null();
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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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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_allow_file(client, path_fs, error))
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return print_error(client, error);
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} else if (*uri != '/') {
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path_fs = map_uri_fs(uri);
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if (path_fs.IsNull()) {
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command_error(client, ACK_ERROR_NO_EXIST,
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"No such file");
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return CommandResult::ERROR;
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}
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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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if (!tag_file_scan(path_fs.c_str(), &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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