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annotate mod_debug_traceback/mod_debug_traceback.lua @ 5442:7480dde4cd2e

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mod_auth_oauth_external: Stub not implemented auth module methods Not providing some of these may trigger errors on use, which is something that would be nice to fix on the Prosody side, one day.
author Kim Alvefur <zash@zash.se>
date Wed, 10 May 2023 19:11:25 +0200
parents 02292b892fce
children 0358fcf14cd6
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1 module:set_global();
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2
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3 local traceback = require "util.debug".traceback;
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4 local pposix = require "util.pposix";
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5 local os_date = os.date;
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6 local render_filename = require "util.interpolation".new("%b{}", function (s) return s; end, {
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7 yyyymmdd = function (t)
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8 return os_date("%Y%m%d", t);
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9 end;
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10 hhmmss = function (t)
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11 return os_date("%H%M%S", t);
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12 end;
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13 });
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14
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15 local count = 0;
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16
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17 local function get_filename(filename_template)
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18 filename_template = filename_template;
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19 return render_filename(filename_template, {
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20 paths = prosody.paths;
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21 pid = pposix.getpid();
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22 count = count;
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23 time = os.time();
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24 });
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25 end
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26
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27 local default_filename_template = "{paths.data}/traceback-{pid}-{count}.log";
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28 local filename_template = module:get_option_string("debug_traceback_filename", default_filename_template);
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29 local signal_name = module:get_option_string("debug_traceback_signal", "SIGUSR1");
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30
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31 function dump_traceback()
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32 module:log("info", "Received %s, writing traceback", signal_name);
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33
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34 local tb = traceback();
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35 module:fire_event("debug_traceback/triggered", { traceback = tb });
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36
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37 local f, err = io.open(get_filename(filename_template), "a+");
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38 if not f then
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39 module:log("error", "Unable to write traceback: %s", err);
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40 return;
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41 end
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42 f:write("-- Traceback generated at ", os.date("%b %d %H:%M:%S"), " --\n");
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43 f:write(tb, "\n");
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44 f:write("-- End of traceback --\n");
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45 f:close();
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46 count = count + 1;
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47 end
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48
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49 local mod_posix = module:depends("posix");
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50 if rawget(mod_posix, "features") and mod_posix.features.signal_events then
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51 module:hook("signal/"..signal_name, dump_traceback);
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52 else
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53 require"util.signal".signal(signal_name, dump_traceback);
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54 end