prosody
9ddb344b9fab
util/jid.lua

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util/jid.lua @ 13039:9ddb344b9fab

util.human.io: Allow defining per column ellipsis function As an alternative to doing it in the mapper function. Could be useful in cases where one may want to put the ellipsis in the middle or beginning instead of the start.
author Kim Alvefur <zash@zash.se>
date Fri, 07 Apr 2023 13:00:58 +0200
parent 12975:d10957394a3c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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841d61be198f Remove version number from copyright headers
Matthew Wild <mwild1@gmail.com>
parents: 1171
diff changeset
1 -- Prosody IM
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b7049746bd29 Update copyright headers for 2010
Matthew Wild <mwild1@gmail.com>
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2 -- Copyright (C) 2008-2010 Matthew Wild
b7049746bd29 Update copyright headers for 2010
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parents: 2245
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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Florian Zeitz <florob@babelmonkeys.de>
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4 --
758
b1885732e979 GPL->MIT!
Matthew Wild <mwild1@gmail.com>
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5 -- This project is MIT/X11 licensed. Please see the
b1885732e979 GPL->MIT!
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6 -- COPYING file in the source package for more information.
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7 --
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8
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9
0
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
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10
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a7199fc8a50e util.jid: Import select() into local (fixes traceback, tests on Lua 5.2)
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11 local select = select;
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12 local match, sub = string.match, string.sub;
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13 local nodeprep = require "prosody.util.encodings".stringprep.nodeprep;
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14 local nameprep = require "prosody.util.encodings".stringprep.nameprep;
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15 local resourceprep = require "prosody.util.encodings".stringprep.resourceprep;
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16
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17 local escapes = {
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18 [" "] = "\\20"; ['"'] = "\\22";
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19 ["&"] = "\\26"; ["'"] = "\\27";
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20 ["/"] = "\\2f"; [":"] = "\\3a";
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21 ["<"] = "\\3c"; [">"] = "\\3e";
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22 ["@"] = "\\40"; ["\\"] = "\\5c";
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23 };
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24 local unescapes = {};
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25 local backslash_escapes = {};
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26 for k,v in pairs(escapes) do
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27 unescapes[v] = k;
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28 backslash_escapes[v] = v:gsub("\\", escapes)
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29 end
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30
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31 local _ENV = nil;
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32 -- luacheck: std none
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33
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34 local function split(jid)
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35 if jid == nil then return; end
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97831dfe7f72 util.jid: Fix parsing of JIDs with no nodepart and an @ in the resourcepart (thanks seth)
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36 local node, nodepos = match(jid, "^([^@/]+)@()");
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37 local host, hostpos = match(jid, "^([^@/]+)()", nodepos);
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38 local resource = host and match(jid, "^/(.+)$", hostpos);
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39 if (host == nil) or ((resource == nil) and #jid >= hostpos) then return nil, nil, nil; end
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40 return node, host, resource;
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41 end
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42
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43 local function bare(jid)
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44 local node, host = split(jid);
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45 if node ~= nil and host ~= nil then
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46 return node.."@"..host;
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47 end
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48 return host;
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49 end
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50
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51 local function prepped_split(jid, strict)
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52 local node, host, resource = split(jid);
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53 if host ~= nil and host ~= "." then
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54 if sub(host, -1, -1) == "." then -- Strip empty root label
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55 host = sub(host, 1, -2);
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56 end
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57 host = nameprep(host, strict);
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58 if host == nil then return; end
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59 if node ~= nil then
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60 node = nodeprep(node, strict);
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61 if node == nil then return; end
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62 end
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63 if resource ~= nil then
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64 resource = resourceprep(resource, strict);
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65 if resource == nil then return; end
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66 end
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67 return node, host, resource;
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68 end
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69 end
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70
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71 local function join(node, host, resource)
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72 if host == nil then return end
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73 if node ~= nil and resource ~= nil then
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74 return node.."@"..host.."/"..resource;
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75 elseif node ~= nil then
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76 return node.."@"..host;
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77 elseif resource ~= nil then
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78 return host.."/"..resource;
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79 end
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80 return host;
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81 end
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82
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83 local function prep(jid, strict)
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84 local node, host, resource = prepped_split(jid, strict);
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85 return join(node, host, resource);
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86 end
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87
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88 local function compare(jid, acl)
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89 -- compare jid to single acl rule
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90 -- TODO compare to table of rules?
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91 local jid_node, jid_host, jid_resource = split(jid);
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92 local acl_node, acl_host, acl_resource = split(acl);
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93 if (acl_node == nil or acl_node == jid_node) and
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94 (acl_host == nil or acl_host == jid_host) and
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95 (acl_resource == nil or acl_resource == jid_resource) then
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96 return true
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97 end
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98 return false
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99 end
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100
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101 local function node(jid)
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102 return (select(1, split(jid)));
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103 end
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104
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105 local function host(jid)
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106 return (select(2, split(jid)));
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107 end
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108
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109 local function resource(jid)
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110 return (select(3, split(jid)));
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111 end
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112
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113 -- TODO Forbid \20 at start and end of escaped output per XEP-0106 v1.1
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114 local function escape(s) return s and (s:gsub("\\%x%x", backslash_escapes):gsub("[\"&'/:<>@ ]", escapes)); end
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115 local function unescape(s) return s and (s:gsub("\\%x%x", unescapes)); end
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116
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117 return {
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118 split = split;
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119 bare = bare;
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120 prepped_split = prepped_split;
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121 join = join;
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122 prep = prep;
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123 compare = compare;
7296
1859e07ae082 util.jid+tests: Add simple helpers... node(), host() and resource() for extracting specific parts of a JID
Matthew Wild <mwild1@gmail.com>
parents: 6891
diff changeset
124 node = node;
1859e07ae082 util.jid+tests: Add simple helpers... node(), host() and resource() for extracting specific parts of a JID
Matthew Wild <mwild1@gmail.com>
parents: 6891
diff changeset
125 host = host;
1859e07ae082 util.jid+tests: Add simple helpers... node(), host() and resource() for extracting specific parts of a JID
Matthew Wild <mwild1@gmail.com>
parents: 6891
diff changeset
126 resource = resource;
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6340
diff changeset
127 escape = escape;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6340
diff changeset
128 unescape = unescape;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6340
diff changeset
129 };