aboutsummaryrefslogtreecommitdiff
path: root/src/server/worldserver/CommandLine/CliRunnable.cpp
blob: 5e8fd69a0728ee06c13c739181ac6b3c82930817 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
/*
 * This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */

/// \addtogroup Trinityd
/// @{
/// \file

#include "CliRunnable.h"
#include "Config.h"
#include "Util.h"
#include "World.h"

#if TRINITY_PLATFORM != TRINITY_PLATFORM_WINDOWS
#include "Chat.h"
#include "ChatCommand.h"
#include <readline/readline.h>
#include <readline/history.h>
#else
#include <Windows.h>
#endif

static constexpr char CLI_PREFIX[] = "TC> ";

static inline void PrintCliPrefix()
{
    printf("%s", CLI_PREFIX);
}

#if TRINITY_PLATFORM != TRINITY_PLATFORM_WINDOWS
namespace Trinity::Impl::Readline
{
    static std::vector<std::string> vec;
    char* cli_unpack_vector(char const*, int state)
    {
        static size_t i=0;
        if (!state)
            i = 0;
        if (i < vec.size())
            return strdup(vec[i++].c_str());
        else
            return nullptr;
    }

    char** cli_completion(char const* text, int /*start*/, int /*end*/)
    {
        ::rl_attempted_completion_over = 1;
        vec = Trinity::ChatCommands::GetAutoCompletionsFor(CliHandler(nullptr,nullptr), text);
        return ::rl_completion_matches(text, &cli_unpack_vector);
    }

    int cli_hook_func()
    {
        if (World::IsStopped())
            ::rl_done = 1;
        return 0;
    }
}
#endif

void utf8print(void* /*arg*/, std::string_view str)
{
#if TRINITY_PLATFORM == TRINITY_PLATFORM_WINDOWS
    WriteWinConsole(str);
#else
{
    printf(STRING_VIEW_FMT, STRING_VIEW_FMT_ARG(str));
    fflush(stdout);
}
#endif
}

void commandFinished(void*, bool /*success*/)
{
    PrintCliPrefix();
    fflush(stdout);
}

#ifdef linux
// Non-blocking keypress detector, when return pressed, return 1, else always return 0
int kb_hit_return()
{
    struct timeval tv;
    fd_set fds;
    tv.tv_sec = 0;
    tv.tv_usec = 0;
    FD_ZERO(&fds);
    FD_SET(STDIN_FILENO, &fds);
    select(STDIN_FILENO+1, &fds, nullptr, nullptr, &tv);
    return FD_ISSET(STDIN_FILENO, &fds);
}
#endif

/// %Thread start
void CliThread()
{
#if TRINITY_PLATFORM == TRINITY_PLATFORM_WINDOWS
    // print this here the first time
    // later it will be printed after command queue updates
    PrintCliPrefix();
#else
    ::rl_attempted_completion_function = &Trinity::Impl::Readline::cli_completion;
    {
        static char BLANK = '\0';
        ::rl_completer_word_break_characters = &BLANK;
    }
    ::rl_event_hook = &Trinity::Impl::Readline::cli_hook_func;
#endif

    if (sConfigMgr->GetBoolDefault("BeepAtStart", true))
        printf("\a");                                       // \a = Alert

#if TRINITY_PLATFORM == TRINITY_PLATFORM_WINDOWS
    if (sConfigMgr->GetBoolDefault("FlashAtStart", true))
    {
        FLASHWINFO fInfo;
        fInfo.cbSize = sizeof(FLASHWINFO);
        fInfo.dwFlags = FLASHW_TRAY | FLASHW_TIMERNOFG;
        fInfo.hwnd = GetConsoleWindow();
        fInfo.uCount = 0;
        fInfo.dwTimeout = 0;
        FlashWindowEx(&fInfo);
    }
#endif
    ///- As long as the World is running (no World::m_stopEvent), get the command line and handle it
    while (!World::IsStopped())
    {
        fflush(stdout);

        std::string command;

#if TRINITY_PLATFORM == TRINITY_PLATFORM_WINDOWS
        if (!ReadWinConsole(command))
            continue;
#else
        char* command_str = readline(CLI_PREFIX);
        ::rl_bind_key('\t', ::rl_complete);
        if (command_str != nullptr)
        {
            command = command_str;
            free(command_str);
        }
#endif

        if (!command.empty())
        {
            Optional<std::size_t> nextLineIndex = RemoveCRLF(command);
            if (nextLineIndex && *nextLineIndex == 0)
            {
#if TRINITY_PLATFORM == TRINITY_PLATFORM_WINDOWS
                PrintCliPrefix();
#endif
                continue;
            }

            fflush(stdout);
            sWorld->QueueCliCommand(new CliCommandHolder(nullptr, command.c_str(), &utf8print, &commandFinished));
#if TRINITY_PLATFORM != TRINITY_PLATFORM_WINDOWS
            add_history(command.c_str());
#endif
        }
        else if (feof(stdin))
        {
            World::StopNow(SHUTDOWN_EXIT_CODE);
        }
    }
}