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util/jid.lua @ 11707:61759372be26
mod_s2s: Clone 'extra' data to let resolvers add more to it
This way 'extra' is unique for each connect() instance, making it safer
to mutate it, while inheriting the global settings.
See 926d53af9a7a for some more context.
author | Kim Alvefur <zash@zash.se> |
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date | Sun, 18 Jul 2021 21:53:26 +0200 |
parent | 11056:0b0a42542456 |
child | 12190:3616128cd2e3 |
rev | line source |
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1 -- Prosody IM |
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2 -- Copyright (C) 2008-2010 Matthew Wild |
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3 -- Copyright (C) 2008-2010 Waqas Hussain |
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4 -- |
758 | 5 -- This project is MIT/X11 licensed. Please see the |
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 | 10 |
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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 "util.encodings".stringprep.nodeprep; |
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14 local nameprep = require "util.encodings".stringprep.nameprep; |
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15 local resourceprep = require "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 |
0 | 33 |
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34 local function split(jid) |
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35 if not jid then return; end |
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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 if node and not host then return nil, nil, nil; end |
369 | 39 local resource = match(jid, "^/(.+)$", hostpos); |
40 if (not host) or ((not resource) and #jid >= hostpos) then return nil, nil, nil; end | |
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41 return node, host, resource; |
0 | 42 end |
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43 |
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44 local function bare(jid) |
6891 | 45 local node, host = split(jid); |
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46 if node and host then |
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47 return node.."@"..host; |
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48 end |
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49 return host; |
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50 end |
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51 |
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52 local function prepped_split(jid, strict) |
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53 local node, host, resource = split(jid); |
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54 if host and host ~= "." then |
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55 if sub(host, -1, -1) == "." then -- Strip empty root label |
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56 host = sub(host, 1, -2); |
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57 end |
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58 host = nameprep(host, strict); |
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59 if not host then return; end |
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60 if node then |
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61 node = nodeprep(node, strict); |
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62 if not node then return; end |
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63 end |
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64 if resource then |
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65 resource = resourceprep(resource, strict); |
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66 if not resource then return; end |
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67 end |
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68 return node, host, resource; |
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69 end |
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70 end |
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71 |
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72 local function join(node, host, resource) |
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73 if not host then return end |
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74 if node and resource then |
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75 return node.."@"..host.."/"..resource; |
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76 elseif node then |
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77 return node.."@"..host; |
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78 elseif resource then |
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79 return host.."/"..resource; |
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80 end |
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81 return host; |
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82 end |
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83 |
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84 local function prep(jid, strict) |
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85 local node, host, resource = prepped_split(jid, strict); |
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86 return join(node, host, resource); |
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87 end |
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88 |
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89 local function compare(jid, acl) |
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90 -- compare jid to single acl rule |
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91 -- TODO compare to table of rules? |
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92 local jid_node, jid_host, jid_resource = split(jid); |
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93 local acl_node, acl_host, acl_resource = split(acl); |
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94 if ((acl_node ~= nil and acl_node == jid_node) or acl_node == nil) and |
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95 ((acl_host ~= nil and acl_host == jid_host) or acl_host == nil) and |
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96 ((acl_resource ~= nil and acl_resource == jid_resource) or acl_resource == nil) then |
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97 return true |
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98 end |
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99 return false |
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100 end |
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101 |
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102 local function node(jid) |
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103 return (select(1, split(jid))); |
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104 end |
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105 |
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106 local function host(jid) |
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107 return (select(2, split(jid))); |
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108 end |
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109 |
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110 local function resource(jid) |
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111 return (select(3, split(jid))); |
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112 end |
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113 |
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util.jid: Fix special escaping of '\' per XEP-0106
Kim Alvefur <zash@zash.se>
parents:
10358
diff
changeset
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114 local function escape(s) return s and (s:gsub("\\%x%x", backslash_escapes):gsub("[\"&'/:<>@ ]", escapes)); end |
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
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115 local function unescape(s) return s and (s:gsub("\\%x%x", unescapes)); end |
4407
f78c6f5fa090
util.jid: Added escape() and unescape().
Waqas Hussain <waqas20@gmail.com>
parents:
3480
diff
changeset
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116 |
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
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117 return { |
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
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118 split = split; |
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
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119 bare = bare; |
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
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120 prepped_split = prepped_split; |
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
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121 join = join; |
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
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122 prep = prep; |
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
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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
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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
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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
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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
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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 }; |