mirror of
https://github.com/the-djmaze/snappymail.git
synced 2024-09-20 23:55:55 +08:00
345 lines
8.3 KiB
JavaScript
345 lines
8.3 KiB
JavaScript
import ko from 'ko';
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import { AbstractModel } from 'Knoin/AbstractModel';
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import { FilterModel } from 'Model/Filter';
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import { arrayLength, pString } from 'Common/Utils';
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const SIEVE_FILE_NAME = 'rainloop.user';
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// collectionToFileString
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function filtersToSieveScript(filters)
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{
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let eol = '\r\n',
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split = /.{0,74}/g,
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require = {},
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parts = [
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'# This is SnappyMail sieve script.',
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'# Please don\'t change anything here.',
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'# RAINLOOP:SIEVE',
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''
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];
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const quote = string => '"' + string.trim().replace(/(\\|")/, '\\\\$1') + '"';
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const StripSpaces = string => string.replace(/\s+/, ' ').trim();
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// conditionToSieveScript
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const conditionToString = (condition, require) =>
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{
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let result = '',
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type = condition.type(),
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field = condition.field(),
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value = condition.value().trim(),
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valueSecond = condition.valueSecond().trim();
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if (value.length && ('Header' !== field || valueSecond.length)) {
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switch (type)
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{
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case 'NotEqualTo':
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result += 'not ';
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type = ':is';
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break;
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case 'EqualTo':
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type = ':is';
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break;
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case 'NotContains':
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result += 'not ';
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type = ':contains';
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break;
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case 'Text':
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case 'Raw':
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case 'Over':
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case 'Under':
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case 'Contains':
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type = ':' + type.toLowerCase();
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break;
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case 'Regex':
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type = ':regex';
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require.regex = 1;
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break;
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default:
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return '/* @Error: unknown type value ' + type + '*/ false';
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}
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switch (field)
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{
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case 'From':
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result += 'header ' + type + ' ["From"]';
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break;
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case 'Recipient':
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result += 'header ' + type + ' ["To", "CC"]';
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break;
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case 'Subject':
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result += 'header ' + type + ' ["Subject"]';
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break;
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case 'Header':
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result += 'header ' + type + ' [' + quote(valueSecond) + ']';
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break;
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case 'Body':
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// :text :raw :content
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result += 'body ' + type + ' :contains';
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require.body = 1;
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break;
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case 'Size':
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result += 'size ' + type;
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break;
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default:
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return '/* @Error: unknown field value ' + field + ' */ false';
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}
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if (('From' === field || 'Recipient' === field) && value.includes(',')) {
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result += ' [' + value.split(',').map(value => quote(value)).join(', ').trim() + ']';
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} else if ('Size' === field) {
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result += ' ' + value;
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} else {
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result += ' ' + quote(value);
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}
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return StripSpaces(result);
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}
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return '/* @Error: empty condition value */ false';
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};
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// filterToSieveScript
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const filterToString = (filter, require) =>
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{
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let sTab = ' ',
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block = true,
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result = [],
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conditions = filter.conditions();
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const errorAction = type => result.push(sTab + '# @Error (' + type + '): empty action value');
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// Conditions
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if (1 < conditions.length) {
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result.push('Any' === filter.conditionsType()
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? 'if anyof('
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: 'if allof('
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);
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result.push(conditions.map(condition => sTab + conditionToString(condition, require)).join(',' + eol));
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result.push(')');
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} else if (conditions.length) {
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result.push('if ' + conditionToString(conditions[0], require));
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} else {
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block = false;
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}
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// actions
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block ? result.push('{') : (sTab = '');
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if (filter.actionMarkAsRead() && ['None','MoveTo','Forward'].includes(filter.actionType())) {
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require.imap4flags = 1;
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result.push(sTab + 'addflag "\\\\Seen";');
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}
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let value = filter.actionValue().trim();
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value = value.length ? quote(value) : 0;
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switch (filter.actionType())
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{
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case 'None':
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break;
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case 'Discard':
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result.push(sTab + 'discard;');
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break;
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case 'Vacation':
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if (value) {
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require.vacation = 1;
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let days = 1,
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subject = '',
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addresses = '',
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paramValue = filter.actionValueSecond().trim();
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if (paramValue.length) {
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subject = ':subject ' + quote(StripSpaces(paramValue)) + ' ';
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}
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paramValue = pString(filter.actionValueThird()).trim();
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if (paramValue.length) {
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days = Math.max(1, parseInt(paramValue, 10));
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}
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paramValue = pString(filter.actionValueFourth()).trim()
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if (paramValue.length) {
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paramValue = paramValue.split(',').map(email =>
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email.trim().length ? quote(email) : ''
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).filter(email => email.length);
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if (paramValue.length) {
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addresses = ':addresses [' + paramValue.join(', ') + '] ';
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}
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}
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result.push(sTab + 'vacation :days ' + days + ' ' + addresses + subject + value + ';');
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} else {
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errorAction('vacation');
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}
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break;
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case 'Reject': {
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if (value) {
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require.reject = 1;
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result.push(sTab + 'reject ' + value + ';');
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} else {
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errorAction('reject');
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}
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break; }
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case 'Forward':
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if (value) {
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if (filter.actionKeep()) {
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require.fileinto = 1;
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result.push(sTab + 'fileinto "INBOX";');
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}
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result.push(sTab + 'redirect ' + value + ';');
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} else {
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errorAction('redirect');
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}
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break;
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case 'MoveTo':
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if (value) {
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require.fileinto = 1;
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result.push(sTab + 'fileinto ' + value + ';');
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} else {
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errorAction('fileinto');
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}
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break;
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}
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filter.actionNoStop() || result.push(sTab + 'stop;');
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block && result.push('}');
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return result.join(eol);
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};
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filters.forEach(filter => {
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parts.push([
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'/*',
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'BEGIN:FILTER:' + filter.id,
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'BEGIN:HEADER',
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btoa(unescape(encodeURIComponent(JSON.stringify(filter.toJson())))).match(split).join(eol) + 'END:HEADER',
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'*/',
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filter.enabled() ? '' : '/* @Filter is disabled ',
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filterToString(filter, require),
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filter.enabled() ? '' : '*/',
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'/* END:FILTER */',
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''
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].join(eol));
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});
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require = Object.keys(require);
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return (require.length ? 'require ' + JSON.stringify(require) + ';' + eol : '') + eol + parts.join(eol);
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}
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// fileStringToCollection
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function sieveScriptToFilters(script)
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{
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let regex = /BEGIN:HEADER([\s\S]+?)END:HEADER/gm,
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filters = [],
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json,
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filter;
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if (script.length && script.includes('RAINLOOP:SIEVE')) {
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while ((json = regex.exec(script))) {
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json = decodeURIComponent(escape(atob(json[1].replace(/\s+/g, ''))));
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if (json && json.length && (json = JSON.parse(json))) {
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json['@Object'] = 'Object/Filter';
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json.Conditions.forEach(condition => condition['@Object'] = 'Object/FilterCondition');
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filter = FilterModel.reviveFromJson(json);
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filter && filters.push(filter);
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}
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}
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}
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/*
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// TODO: branch sieveparser
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// https://github.com/the-djmaze/snappymail/tree/sieveparser/dev/Sieve
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else if (script.length && window.Sieve) {
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let tree = window.Sieve.parseScript(script);
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}
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*/
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return filters;
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}
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export class SieveScriptModel extends AbstractModel
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{
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constructor() {
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super();
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this.addObservables({
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name: '',
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active: false,
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body: '',
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exists: false,
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nameError: false,
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bodyError: false,
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deleteAccess: false,
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canBeDeleted: true,
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hasChanges: false
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});
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this.filters = ko.observableArray();
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// this.saving = ko.observable(false).extend({ debounce: 200 });
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this.addSubscribables({
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name: () => this.hasChanges(true),
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filters: () => this.hasChanges(true),
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body: () => this.hasChanges(true)
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});
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}
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filtersToRaw() {
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return filtersToSieveScript(this.filters);
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// this.body(filtersToSieveScript(this.filters));
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}
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rawToFilters() {
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return sieveScriptToFilters(this.body());
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// this.filters(sieveScriptToFilters(this.body()));
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}
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verify() {
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this.nameError(!this.name().trim());
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this.bodyError(this.allowFilters() ? !this.filters.length : !this.body().trim());
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return !this.nameError() && !this.bodyError();
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}
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toJson() {
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return {
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name: this.name(),
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active: this.active() ? 1 : 0,
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body: this.body(),
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filters: this.filters.map(item => item.toJson())
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};
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}
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/**
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* Only 'rainloop.user' script supports filters
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*/
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allowFilters() {
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return SIEVE_FILE_NAME === this.name();
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}
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/**
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* @static
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* @param {FetchJsonScript} json
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* @returns {?SieveScriptModel}
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*/
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static reviveFromJson(json) {
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const script = super.reviveFromJson(json);
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if (script) {
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if (script.allowFilters()) {
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script.filters(
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arrayLength(json.filters)
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? json.filters.map(aData => FilterModel.reviveFromJson(aData)).filter(v => v)
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: sieveScriptToFilters(script.body())
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);
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} else {
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script.filters([]);
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}
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script.canBeDeleted(SIEVE_FILE_NAME !== json.name);
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script.exists(true);
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script.hasChanges(false);
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}
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return script;
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}
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}
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