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annotate util.js @ 48:021185105e2f

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Move the node configuration retrieval to a util promise.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Sat, 23 May 2020 20:37:20 +0200
parents b15e1581c3d4
children 2f45bee88b47
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48
021185105e2f Move the node configuration retrieval to a util promise.
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1 'use strict';
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2
3
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3 const NS = {
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4 xrd: 'http://docs.oasis-open.org/ns/xri/xrd-1.0',
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5 roster: 'jabber:iq:roster',
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6 disco_items: 'http://jabber.org/protocol/disco#items',
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7 disco_info: 'http://jabber.org/protocol/disco#info',
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8 dataforms: 'jabber:x:data',
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9 pubsub: 'http://jabber.org/protocol/pubsub',
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10 pubsub_owner: 'http://jabber.org/protocol/pubsub#owner',
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11 avatar_metadata: 'urn:xmpp:avatar:metadata',
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12 avatar_data: 'urn:xmpp:avatar:data',
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13 nickname: 'http://jabber.org/protocol/nick',
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14 vcard4: 'urn:ietf:params:xml:ns:vcard-4.0',
17
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15 mam: 'urn:xmpp:mam:2',
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16 forward: 'urn:xmpp:forward:0',
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17 };
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18
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19 function nsResolver(prefix) {
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20 return NS[prefix] || null;
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21 }
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22
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23 function parseXPath(elem, xpath, result)
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24 {
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25 if (result === undefined)
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26 result = XPathResult.FIRST_ORDERED_NODE_TYPE;
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27 const value = elem.getRootNode().evaluate(xpath, elem, nsResolver, result, null);
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28 if (result == XPathResult.FIRST_ORDERED_NODE_TYPE)
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29 return value.singleNodeValue;
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30 return value;
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31 }
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33 function parseXPathText(elem, xpath)
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34 {
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35 const value = parseXPath(elem, xpath);
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36 if (value === null)
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37 return null;
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38 return value.textContent;
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39 }
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40
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41 function configurePEPField(node, key, value, cb, err_cb) {
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42 return $iq({type: 'set'})
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43 .c('pubsub', {xmlns: 'http://jabber.org/protocol/pubsub#owner'})
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44 .c('configure', {node: node})
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45 .c('x', {xmlns: 'jabber:x:data', type: 'submit'})
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46 .c('field', {'var': 'FORM_TYPE', type: 'hidden'})
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47 .c('value')
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48 .t('http://jabber.org/protocol/pubsub#node_config')
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49 .up()
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50 .up()
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51 .c('field', {'var': key})
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52 .c('value')
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53 .t(value)
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54 .up()
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55 .up();
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56 }
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57
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58 function parseErrorIq(iq) {
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59 // TODO: actually check that it is the first one.
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60 const error = iq.firstChild;
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61 if (error.namespaceURI !== 'jabber:client' || error.localName !== 'error')
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62 return null;
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63 const condition = error.firstChild;
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64 if (condition.namespaceURI !== 'urn:ietf:params:xml:ns:xmpp-stanzas')
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65 return null;
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66 const text = error.lastChild;
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67 if (text === condition)
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68 return condition.localName;
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69 if (text.namespaceURI !== 'urn:ietf:params:xml:ns:xmpp-stanzas' || text.localName !== 'text')
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70 return null;
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71 return condition.localName + ': ' + text.textContent;
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72 }
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73
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74 function retrieveConfiguration(connection)
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75 {
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76 return new Promise((resolve, reject) => {
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77 const iq = $iq({type: 'get'})
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78 .c('pubsub', {xmlns: 'http://jabber.org/protocol/pubsub#owner'})
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79 .c('configure', {node: 'http://jabber.org/protocol/nick'});
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80 connection.sendIQ(iq, onNodeConfigure.bind(null, resolve, reject), reject);
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81 });
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82 }
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83
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84 function onNodeConfigure(resolve, reject, result_iq)
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85 {
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86 const fields = parseXPath(result_iq, './pubsub_owner:pubsub/pubsub_owner:configure/dataforms:x/dataforms:field', XPathResult.UNORDERED_NODE_ITERATOR_TYPE);
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87 if (fields === null)
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88 return reject('no fields');
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89 let access_model = null;
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90 while (true) {
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91 const field = fields.iterateNext();
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92 if (field === null)
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93 break;
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94 const var_ = field.getAttributeNS(null, 'var');
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95 if (var_ === 'pubsub#access_model') {
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96 const value = parseXPath(field, './dataforms:value');
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97 access_model = value.textContent;
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98 }
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99 }
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100 return resolve(access_model);
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101 }
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102
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103 function displaySpinner(spinner) {
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104 if ('timeoutid' in spinner.dataset)
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105 clearTimeout(spinner.dataset.timeoutid);
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106 spinner.src = 'spinner.svg';
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107 spinner.title = '';
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108 spinner.hidden = false;
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109 }
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110
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111 function spinnerOk(spinner) {
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112 if ('timeoutid' in spinner.dataset)
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113 clearTimeout(spinner.dataset.timeoutid);
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114 spinner.src = 'ok.svg';
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115 spinner.title = '';
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116 spinner.hidden = false;
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117 spinner.dataset.timeoutid = setTimeout(function () {
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118 spinner.hidden = true;
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119 }, 1000);
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120 }
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121
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122 function spinnerError(spinner, title) {
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123 if ('timeoutid' in spinner.dataset)
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124 clearTimeout(spinner.dataset.timeoutid);
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125 spinner.src = 'error.svg';
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9ba4f8cc32f1 Display the returned error in the title of the spinner.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 25
diff changeset
126 spinner.title = title ? title : '';
15
3eed9fe0bd7c End spinners with either a green ✔ or a red ✘.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 4
diff changeset
127 spinner.hidden = false;
3eed9fe0bd7c End spinners with either a green ✔ or a red ✘.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 4
diff changeset
128 }
3eed9fe0bd7c End spinners with either a green ✔ or a red ✘.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 4
diff changeset
129
3eed9fe0bd7c End spinners with either a green ✔ or a red ✘.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 4
diff changeset
130 function hideSpinner(spinner) {
19
bde4f0bbfe69 Clear a spinner’s timeout on change if it had been set previously.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 17
diff changeset
131 if ('timeoutid' in spinner.dataset)
bde4f0bbfe69 Clear a spinner’s timeout on change if it had been set previously.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 17
diff changeset
132 clearTimeout(spinner.dataset.timeoutid);
15
3eed9fe0bd7c End spinners with either a green ✔ or a red ✘.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 4
diff changeset
133 spinner.hidden = true;
3eed9fe0bd7c End spinners with either a green ✔ or a red ✘.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 4
diff changeset
134 }