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annotate mod_mam/README.markdown @ 4688:05725276fac0

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mod_bookmarks2: Use same default as mod_pep for max_items Should fix the issue with max items until the proper "max" can be used, by following the configured max. While "max" is already in trunk, it's not easily usable in 0.11.x This limit and option was added to mod_pep in Prosody rev aefb96a52f5f
author Kim Alvefur <zash@zash.se>
date Wed, 15 Sep 2021 17:39:37 +0200
parents 637d63b7398e
children 6ca1117b81a5
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1 ---
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2 labels:
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3 - 'Stage-Merged'
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4 summary: 'XEP-0313: Message Archive Management'
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5 ...
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6
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7 Introduction
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8 ============
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9
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10 Implementation of [XEP-0313: Message Archive Management].
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11
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12 Details
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13 =======
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14
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15 This module will archive all messages that match the simple rules setup
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16 by the user, and allow the user to access this archive.
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17
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18 Usage
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19 =====
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20
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21 First copy the module to the prosody plugins directory.
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22
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23 Then add "mam" to your modules\_enabled list:
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24
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25 ``` {.lua}
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26 modules_enabled = {
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27 -- ...
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28 "mam",
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29 -- ...
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30 }
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31 ```
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33 Configuration
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34 =============
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35
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36 Option summary
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37 --------------
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38
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39 option type default
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40 ------------------------------ ----------------------- -----------
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41 max\_archive\_query\_results number `50`
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42 default\_archive\_policy boolean or `"roster"` `true`
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43 archive\_expires\_after string `"1w"`
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44 archive\_cleanup\_interval number `4*60*60`
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47 Storage backend
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48 ---------------
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49
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50 mod\_mam uses the store "archive2"[^1]. See [Prosodys data storage
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51 documentation][doc:storage] for information on how to configure storage.
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52
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53 For example, to use mod\_storage\_sql (requires Prosody 0.10 or later):
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55 ``` {.lua}
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56 storage = {
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57 archive2 = "sql";
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58 }
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59 ```
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60
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61 If no archive-capable storage backend can be opened then an in-memory
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62 one will be used as fallback.
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63
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64 Query size limits
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65 -----------------
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66
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67 max_archive_query_results = 20;
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68
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69 This is the largest number of messages that are allowed to be retrieved
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70 in one request *page*. A query that does not fit in one page will
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71 include a reference to the next page, letting clients page through the
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72 result set. Setting large number is not recommended, as Prosody will be
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73 blocked while processing the request and will not be able to do anything
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74 else.
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75
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76 Archive expiry
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77 --------------
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78
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79 Messages in the archive will expire after some time, by default one
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80 week. This can be changed by setting `archive_expires_after`:
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81
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82 ``` {.lua}
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83 archive_expires_after = "1d" -- one day
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84
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85 archive_expires_after = "1w" -- one week, the default
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86
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87 archive_expires_after = "2m" -- two months
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88
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89 archive_expires_after = "1y" -- one year
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90
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91 archive_expires_after = 60 * 60 -- one hour
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92
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93 archive_expires_after = "never" -- forever
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94 ```
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95
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96 The format is an integer number of seconds or a multiple of a period
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97 given by a suffix that can be one of `d` (day), `w` (week), `m` (month)
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98 or `y` (year). No multiplier means seconds.
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99
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100 Message matching policy
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101 -----------------------
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102
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103 The MAM protocol includes a way for clients to control what messages
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104 should be stored. This allows users to enable or disable archiving by
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105 default or for specific contacts.
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106
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107 ``` {.lua}
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108 default_archive_policy = true
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109 ```
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110
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111 `default_archive_policy =` Meaning
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112 ---------------------------- ------------------------------------------------------
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113 `false` Store no messages.
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114 `"roster"` Store messages to/from contacts in the users roster.
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115 `true` Store all messages. This is the default.
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116
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117 Compatibility
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118 =============
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119
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120 ------- -----------------------
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121 trunk Included with Prosody
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122 0.10 Included with Prosody
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123 0.9 Works
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124 0.8 Does not work
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125 ------- -----------------------
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126
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127
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128 [^1]: Might be changed to "mam" at some point
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129