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annotate mod_inotify_reload/mod_inotify_reload.lua @ 5185:09d6bbd6c8a4

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mod_http_oauth2: Fix treatment of 'redirect_uri' parameter in code flow It's optional and the one stored in the client registration should really be used instead. RFC 6749 says an URI provided as parameter MUST be validated against the stored one but does not say how. Given that the client needs their secret to proceed, it seems fine to leave this for later.
author Kim Alvefur <zash@zash.se>
date Thu, 02 Mar 2023 22:00:42 +0100
parents ab988e98a9f9
children 82207f936f1f
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1 -- mod_inotify_reload
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2 -- Reloads modules when their files change
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3 -- Depends on linotify: https://github.com/hoelzro/linotify
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4
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5 module:set_global();
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6
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7 local inotify = require "inotify";
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8 local modulemanager = require "core.modulemanager";
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9
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10 local inh = inotify.init();
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11
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12 local watches = {};
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13 local watch_ids = {};
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14
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15 -- Fake socket object around inotify
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16 local inh_conn = {
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17 getfd = function () return inh:fileno(); end;
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18 dirty = function (self) return false; end;
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19 settimeout = function () end;
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20 send = function (_, d) return #d, 0; end;
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21 close = function () end;
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22 receive = function ()
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23 local events = inh:read();
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24 for _, event in ipairs(events) do
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25 local mod = watches[watch_ids[event.wd]];
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26 if mod then
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27 local host, name = mod.host, mod.name;
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28 module:log("debug", "Reloading changed module mod_%s on %s", name, host);
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29 modulemanager.reload(host, name);
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30 else
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31 module:log("warn", "no watch for %d", event.wd);
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32 end
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33 end
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34 return "";
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35 end
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36 };
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37 require "net.server".wrapclient(inh_conn, "inotify", inh:fileno(), {
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38 onincoming = function () end, ondisconnect = function () end
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39 }, "*a");
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40
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41 function watch_module(name, host, path)
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42 local id, err = inh:addwatch(path, inotify.IN_CLOSE_WRITE);
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43 if not id then return nil, err; end
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44 local k = host.."\0"..name;
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45 watches[k] = { id = id, path = path, name = name, host = host };
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46 watch_ids[id] = k;
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47 module:log("debug", "Watching %s:%s with id %d", name, host, id);
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48 return true;
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49 end
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50
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51 function unwatch_module(name, host)
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52 local k = host.."\0"..name;
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53 if not watches[k] then
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54 module:log("warn", "Not watching %s:%s", name, host);
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55 return nil, "not-watching";
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56 end
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57 local id = watches[k].id;
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58 local ok, err = inh:rmwatch(id);
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59 module:log("info", "Removed watch %d", id);
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60 watches[k] = nil;
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61 watch_ids[id] = nil;
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62 return ok, err;
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63 end
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64
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65 function module_loaded(event)
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66 local host, name = event.host, event.module;
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67 local path = modulemanager.get_module(host, name).module.path;
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68 if not path then
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69 module:log("warn", "Couldn't watch mod_%s, no path", name);
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70 return;
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71 end
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72 if watch_module(name, host, path) then
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73 module:log("debug", "Watching mod_%s", name);
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74 end
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75 end
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76
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77 function module_unloaded(event)
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78 unwatch_module(event.module, event.host);
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79 end
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80
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81 function module.add_host(module)
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82 module:hook("module-loaded", module_loaded);
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83 module:hook("module-unloaded", module_unloaded);
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84 end
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85
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86 module:hook("module-loaded", module_loaded);
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87 module:hook("module-unloaded", module_unloaded);
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88