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10bb58ad5583
util/prosodyctl/shell.lua

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util/prosodyctl/shell.lua @ 12578:10bb58ad5583

executables: Reject Lua 5.1 early Prevents attempting to load libraries that may no longer be found and crashing with a traceback. Platforms like Debian where multiple Lua versions can be installed at the same time and 'lua' pointing to one of the installed interpreters via symlinks, there's the possibility that prosody/prosodyctl may be invoked with Lua 5.1, which will no longer have any of the rest of Prosody libraries available to be require(), and thus would immediately fail with an unfriendly traceback. Checking and aborting early with a friendlier message and reference to more information is better. Part of #1600
author Kim Alvefur <zash@zash.se>
date Sat, 02 Jul 2022 17:27:39 +0200
parent 12573:0f4feaf9ca64
child 12864:9f9633364044
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 local config = require "core.configmanager";
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2 local server = require "net.server";
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3 local st = require "util.stanza";
10867
561138169983 util.prosodyctl.shell: Join socket path with current data directory
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4 local path = require "util.paths";
10874
98c535531450 util.prosodyctl.shell: Really fix --socket option
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5 local parse_args = require "util.argparse".parse;
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6 local unpack = table.unpack or _G.unpack;
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7 local tc = require "util.termcolours";
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8 local isatty = require "util.pposix".isatty;
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9
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10 local have_readline, readline = pcall(require, "readline");
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11
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12 local adminstream = require "util.adminstream";
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13
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14 if have_readline then
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15 readline.set_readline_name("prosody");
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16 readline.set_options({
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17 histfile = path.join(prosody.paths.data, ".shell_history");
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18 ignoredups = true;
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19 });
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20 end
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21
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22 local function read_line(prompt_string)
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23 if have_readline then
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24 return readline.readline(prompt_string);
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25 else
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26 io.write(prompt_string);
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27 return io.read("*line");
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28 end
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29 end
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30
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31 local function send_line(client, line)
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32 client.send(st.stanza("repl-input", { width = os.getenv "COLUMNS" }):text(line));
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33 end
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34
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35 local function repl(client)
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36 local line = read_line(client.prompt_string or "prosody> ");
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37 if not line or line == "quit" or line == "exit" or line == "bye" then
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38 if not line then
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39 print("");
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40 end
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41 if have_readline then
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42 readline.save_history();
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43 end
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44 os.exit();
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45 end
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46 send_line(client, line);
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47 end
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48
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49 local function printbanner()
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98fd531594bd util.prosodyctl.shell: Bring back banner set from config!
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50 local banner = config.get("*", "console_banner");
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51 if banner then return print(banner); end
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52 print([[
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53 ____ \ / _
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54 | _ \ _ __ ___ ___ _-_ __| |_ _
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55 | |_) | '__/ _ \/ __|/ _ \ / _` | | | |
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56 | __/| | | (_) \__ \ |_| | (_| | |_| |
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57 |_| |_| \___/|___/\___/ \__,_|\__, |
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58 A study in simplicity |___/
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59
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60 ]]);
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61 print("Welcome to the Prosody administration console. For a list of commands, type: help");
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62 print("You may find more help on using this console in our online documentation at ");
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63 print("https://prosody.im/doc/console\n");
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64 end
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65
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66 local function start(arg) --luacheck: ignore 212/arg
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67 local client = adminstream.client();
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68 local opts, err, where = parse_args(arg);
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69 local ttyout = isatty(io.stdout);
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70
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71 if not opts then
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72 if err == "param-not-found" then
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73 print("Unknown command-line option: "..tostring(where));
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74 elseif err == "missing-value" then
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75 print("Expected a value to follow command-line option: "..where);
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76 end
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77 os.exit(1);
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78 end
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79
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80 if arg[1] then
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81 if arg[2] then
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82 -- prosodyctl shell module reload foo bar.com --> module:reload("foo", "bar.com")
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83 arg[1] = string.format("%s:%s("..string.rep("%q", #arg-2,", ")..")", unpack(arg));
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84 end
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85
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86 client.events.add_handler("connected", function()
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87 client.send(st.stanza("repl-input"):text(arg[1]));
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88 return true;
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89 end, 1);
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90
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91 local errors = 0; -- TODO This is weird, but works for now.
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92 client.events.add_handler("received", function(stanza)
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93 if stanza.name == "repl-output" or stanza.name == "repl-result" then
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94 local dest = io.stdout;
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95 if stanza.attr.type == "error" then
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96 errors = errors + 1;
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97 dest = io.stderr;
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98 end
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99 if stanza.attr.eol == "0" then
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100 dest:write(stanza:get_text());
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101 else
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102 dest:write(stanza:get_text(), "\n");
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103 end
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104 end
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105 if stanza.name == "repl-result" then
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106 os.exit(errors);
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107 end
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108 return true;
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109 end, 1);
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110 end
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111
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112 client.events.add_handler("connected", function ()
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113 if not opts.quiet then
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114 printbanner();
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115 end
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116 repl(client);
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117 end);
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118
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119 client.events.add_handler("disconnected", function ()
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120 print("--- session closed ---");
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121 os.exit();
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122 end);
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123
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124 client.events.add_handler("received", function (stanza)
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125 if stanza.name == "repl-output" or stanza.name == "repl-result" then
10858
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126 local result_prefix = stanza.attr.type == "error" and "!" or "|";
12539
cfdc8cca64d3 util.prosodyctl.shell: Print errors in red to highlight them
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127 local out = result_prefix.." "..stanza:get_text();
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128 if ttyout and stanza.attr.type == "error" then
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129 out = tc.getstring(tc.getstyle("red"), out);
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130 end
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131 print(out);
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132 end
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133 if stanza.name == "repl-result" then
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134 repl(client);
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135 end
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136 end);
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137
11890
b9aab1962a2b util.prosodyctl.shell: Allow setting custom prompt (admin_shell_prompt)
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138 client.prompt_string = config.get("*", "admin_shell_prompt");
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139
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140 local socket_path = path.resolve_relative_path(prosody.paths.data, opts.socket or config.get("*", "admin_socket") or "prosody.sock");
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141 local conn = adminstream.connection(socket_path, client.listeners);
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142 local ok, err = conn:connect();
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143 if not ok then
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144 if err == "no unix socket support" then
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145 print("** LuaSocket unix socket support not available or incompatible, ensure your");
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146 print("** version is up to date.");
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147 else
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148 print("** Unable to connect to server - is it running? Is mod_admin_shell enabled?");
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149 print("** Connection error: "..err);
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150 end
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151 os.exit(1);
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152 end
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153 server.loop();
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154 end
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155
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156 return {
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e5dee71d0ebb prosodyctl+util.prosodyctl.*: Start breaking up the ever-growing prosodyctl
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157 shell = start;
10858
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158 };