src/injections/profileIndicator.js - infinitegforums - Gitiles

 import {CCApi} from '../common/api.js';
 import {escapeUsername} from '../common/communityConsoleUtils.js';

 var CCProfileRegex =
     /^(?:https:\/\/support\.google\.com)?\/s\/community(?:\/forum\/[0-9]*)?\/user\/(?:[0-9]+)$/;
 var CCRegex = /^https:\/\/support\.google\.com\/s\/community/;

 const OP_FIRST_POST = 0;
 const OP_OTHER_POSTS_READ = 1;
 const OP_OTHER_POSTS_UNREAD = 2;

 const OPClasses = {
   0: 'first-post',
   1: 'other-posts-read',
   2: 'other-posts-unread',
 };

 const OPi18n = {
   0: 'first_post',
   1: 'other_posts_read',
   2: 'other_posts_unread',
 };

 const indicatorTypes = ['numPosts', 'indicatorDot'];

 // Filter used as a workaround to speed up the ViewForum request.
 const FILTER_ALL_LANGUAGES =
     'lang:(ar | bg | ca | "zh-hk" | "zh-cn" | "zh-tw" | hr | cs | da | nl | en | "en-au" | "en-gb" | et | fil | fi | fr | de | el | iw | hi | hu | id | it | ja | ko | lv | lt | ms | no | pl | "pt-br" | "pt-pt" | ro | ru | sr | sk | sl | es | "es-419" | sv | th | tr | uk | vi)';

 const numPostsForumArraysToSum = [3, 4];

 var authuser = null;

 function isElementInside(element, outerTag) {
   while (element !== null && ('tagName' in element)) {
     if (element.tagName == outerTag) return true;
     element = element.parentNode;
   }

   return false;
 }

 function getPosts(query, forumId) {
   return CCApi(
       'ViewForum', {
         '1': forumId,
         '2': {
           '1': {
             '2': 5,
           },
           '2': {
             '1': 1,
             '2': true,
           },
           '12': query,
         },
       },
       /* authenticated = */ true, authuser);
 }

 function getProfile(userId, forumId) {
   return CCApi(
       'ViewUser', {
         '1': userId,
         '2': 0,
         '3': forumId,
         '4': {
           '20': true,
         },
       },
       /* authenticated = */ true, authuser);
 }

 // Source:
 // https://stackoverflow.com/questions/33063774/communication-from-an-injected-script-to-the-content-script-with-a-response
 var contentScriptRequest = (function() {
   var requestId = 0;
   var prefix = 'TWPT-profileindicator';

   function sendRequest(data) {
     var id = requestId++;

     return new Promise(function(resolve, reject) {
       var listener = function(evt) {
         if (evt.source === window && evt.data && evt.data.prefix === prefix &&
             evt.data.requestId == id) {
           // Deregister self
           window.removeEventListener('message', listener);
           resolve(evt.data.data);
         }
       };

       window.addEventListener('message', listener);

       var payload = {data, id, prefix};

       window.dispatchEvent(
           new CustomEvent('TWPT_sendRequest', {detail: payload}));
     });
   }

   return {sendRequest: sendRequest};
 })();

 // Create profile indicator dot with a loading state, or return the numPosts
 // badge if it is already created.
 function createIndicatorDot(sourceNode, searchURL, options) {
   if (options.numPosts) return document.querySelector('.num-posts-indicator');
   var dotContainer = document.createElement('div');
   dotContainer.classList.add('profile-indicator', 'profile-indicator--loading');
   contentScriptRequest
       .sendRequest({
         'action': 'geti18nMessage',
         'msg': 'inject_profileindicator_loading'
       })
       .then(string => dotContainer.setAttribute('title', string));

   var dotLink = document.createElement('a');
   dotLink.href = searchURL;
   dotLink.innerText = '●';

   dotContainer.appendChild(dotLink);
   sourceNode.parentNode.appendChild(dotContainer);

   return dotContainer;
 }

 // Create badge indicating the number of posts with a loading state
 function createNumPostsBadge(sourceNode, searchURL) {
   var link = document.createElement('a');
   link.href = searchURL;

   var numPostsContainer = document.createElement('div');
   numPostsContainer.classList.add(
       'num-posts-indicator', 'num-posts-indicator--loading');
   contentScriptRequest
       .sendRequest({
         'action': 'geti18nMessage',
         'msg': 'inject_profileindicator_loading'
       })
       .then(string => numPostsContainer.setAttribute('title', string));

   var numPostsSpan = document.createElement('span');
   numPostsSpan.classList.add('num-posts-indicator--num');

   numPostsContainer.appendChild(numPostsSpan);
   link.appendChild(numPostsContainer);
   sourceNode.parentNode.appendChild(link);
   return numPostsContainer;
 }

 // Set the badge text
 function setNumPostsBadge(badge, text) {
   badge.classList.remove('num-posts-indicator--loading');
   badge.querySelector('span').classList.remove(
       'num-posts-indicator--num--loading');
   badge.querySelector('span').textContent = text;
 }

 // Get options and then handle all the indicators
 function getOptionsAndHandleIndicators(sourceNode, isCC) {
   contentScriptRequest.sendRequest({'action': 'getProfileIndicatorOptions'})
       .then(options => handleIndicators(sourceNode, isCC, options));
 }

 // Handle the profile indicator dot
 function handleIndicators(sourceNode, isCC, options) {
   var escapedUsername = escapeUsername(
       (isCC ? sourceNode.querySelector('.name-text').textContent :
               sourceNode.querySelector('span').textContent));

   if (isCC) {
     var threadLink = document.location.href;
   } else {
     var CCLink = document.getElementById('onebar-community-console');
     if (CCLink === null) {
       console.error(
           '[opindicator] The user is not a PE so the dot indicator cannot be shown in TW.');
       return;
     }
     var threadLink = CCLink.href;
   }

   var forumUrlSplit = threadLink.split('/forum/');
   if (forumUrlSplit.length < 2) {
     console.error('[opindicator] Can\'t get forum id.');
     return;
   }

   var forumId = forumUrlSplit[1].split('/')[0];

   /*
    * TODO(avm99963): If the TW filters ever work again, set isCCLink to isCC.
    * Otherwise, issue #29 should be resolved:
    * https://github.com/avm99963/infinitegforums/issues/29
    */
   var isCCLink = true;

   var query = '(replier:"' + escapedUsername + '" | creator:"' +
       escapedUsername + '") ' + FILTER_ALL_LANGUAGES;
   var encodedQuery =
       encodeURIComponent(query + (isCCLink ? ' forum:' + forumId : ''));
   var authuserPart =
       (authuser == '0' ?
            '' :
            (isCCLink ? '?' : '&') + 'authuser=' + encodeURIComponent(authuser));
   var searchURL =
       (isCCLink ? 'https://support.google.com/s/community/search/' +
                encodeURIComponent('query=' + encodedQuery) + authuserPart :
                   document.location.pathname.split('/thread')[0] +
                '/threads?thread_filter=' + encodedQuery + authuserPart);

   if (options.numPosts) {
     var profileURL = new URL(sourceNode.href);
     var userId =
         profileURL.pathname.split(isCC ? 'user/' : 'profile/')[1].split('/')[0];

     var numPostsContainer = createNumPostsBadge(sourceNode, searchURL);

     getProfile(userId, forumId)
         .then(res => {
           if (!('1' in res) || !('2' in res[1])) {
             throw new Error('Unexpected profile response.');
             return;
           }

           contentScriptRequest.sendRequest({'action': 'getNumPostMonths'})
               .then(months => {
                 if (!options.indicatorDot)
                   contentScriptRequest
                       .sendRequest({
                         'action': 'geti18nMessage',
                         'msg': 'inject_profileindicatoralt_numposts',
                         'placeholders': [months]
                       })
                       .then(
                           string =>
                               numPostsContainer.setAttribute('title', string));

                 var numPosts = 0;

                 for (const index of numPostsForumArraysToSum) {
                   if (!(index in res[1][2])) {
                     throw new Error('Unexpected profile response.');
                     return;
                   }

                   var i = 0;
                   for (const month of res[1][2][index].reverse()) {
                     if (i == months) break;
                     numPosts += month[3] || 0;
                     ++i;
                   }
                 }

                 setNumPostsBadge(numPostsContainer, numPosts);
               })
               .catch(
                   err => console.error('[opindicator] Unexpected error.', err));
         })
         .catch(err => {
           console.error(
               '[opindicator] Unexpected error. Couldn\'t load profile.', err);
           setNumPostsBadge(numPostsContainer, '?');
         });
   }

   if (options.indicatorDot) {
     var dotContainer = createIndicatorDot(sourceNode, searchURL, options);

     // Query threads in order to see what state the indicator should be in
     getPosts(query, forumId)
         .then(res => {
           // Throw an error when the replies array is not present in the reply.
           if (!('1' in res) || !('2' in res['1'])) {
             // Throw a different error when the numThreads field exists and is
             // equal to 0. This reply can be received, but is enexpected,
             // because we know that the user has replied in at least 1 thread
             // (the current one).
             if (('1' in res) && ('4' in res['1']) && res['1']['4'] == 0)
               throw new Error(
                   'Thread list is empty ' +
                   '(but the OP has participated in this thread, ' +
                   'so it shouldn\'t be empty).');

             throw new Error('Unexpected thread list response.');
             return;
           }

           // Current thread ID
           var threadUrlSplit = threadLink.split('/thread/');
           if (threadUrlSplit.length < 2)
             throw new Error('Can\'t get thread id.');

           var currId = threadUrlSplit[1].split('/')[0];

           var OPStatus = OP_FIRST_POST;

           for (const thread of res['1']['2']) {
             var id = thread['2']['1']['1'] || undefined;
             if (id === undefined || id == currId) continue;

             var isRead = thread['6'] || false;
             if (isRead)
               OPStatus = Math.max(OP_OTHER_POSTS_READ, OPStatus);
             else
               OPStatus = Math.max(OP_OTHER_POSTS_UNREAD, OPStatus);
           }

           var dotContainerPrefix =
               (options.numPosts ? 'num-posts-indicator' : 'profile-indicator');

           if (!options.numPosts)
             dotContainer.classList.remove(dotContainerPrefix + '--loading');
           dotContainer.classList.add(
               dotContainerPrefix + '--' + OPClasses[OPStatus]);
           contentScriptRequest
               .sendRequest({
                 'action': 'geti18nMessage',
                 'msg': 'inject_profileindicator_' + OPi18n[OPStatus]
               })
               .then(string => dotContainer.setAttribute('title', string));
         })
         .catch(
             err => console.error(
                 '[opindicator] Unexpected error. Couldn\'t load recent posts.',
                 err));
   }
 }

 if (CCRegex.test(location.href)) {
   // We are in the Community Console
   var startup =
       JSON.parse(document.querySelector('html').getAttribute('data-startup'));

   authuser = startup[2][1] || '0';

   // When the OP's username is found, call getOptionsAndHandleIndicators
   function mutationCallback(mutationList, observer) {
     mutationList.forEach((mutation) => {
       if (mutation.type == 'childList') {
         mutation.addedNodes.forEach(function(node) {
           if (node.tagName == 'A' && ('href' in node) &&
               CCProfileRegex.test(node.href) &&
               node.matches(
                   'ec-question ec-message-header .name-section ec-user-link a')) {
             console.info('Handling profile indicator via mutation callback.');
             getOptionsAndHandleIndicators(node, true);
           }
         });
       }
     });
   };

   var observerOptions = {
     childList: true,
     subtree: true,
   }

   // Before starting the mutation Observer, check if the OP's username link is
   // already part of the page
   var node = document.querySelector(
       'ec-question ec-message-header .name-section ec-user-link a');
   if (node !== null) {
     console.info('Handling profile indicator via first check.');
     getOptionsAndHandleIndicators(node, true);
   }

   var mutationObserver = new MutationObserver(mutationCallback);
   mutationObserver.observe(document.body, observerOptions);
 } else {
   // We are in TW
   authuser = (new URL(location.href)).searchParams.get('authuser') || '0';

   var node =
       document.querySelector('.thread-question a.user-info-display-name');
   if (node !== null)
     getOptionsAndHandleIndicators(node, false);
   else
     console.error('[opindicator] Couldn\'t find username.');
 }
	import {CCApi} from '../common/api.js';
	import {escapeUsername} from '../common/communityConsoleUtils.js';

	var CCProfileRegex =
	/^(?:https:\/\/support\.google\.com)?\/s\/community(?:\/forum\/[0-9]*)?\/user\/(?:[0-9]+)$/;
	var CCRegex = /^https:\/\/support\.google\.com\/s\/community/;

	const OP_FIRST_POST = 0;
	const OP_OTHER_POSTS_READ = 1;
	const OP_OTHER_POSTS_UNREAD = 2;

	const OPClasses = {
	0: 'first-post',
	1: 'other-posts-read',
	2: 'other-posts-unread',
	};

	const OPi18n = {
	0: 'first_post',
	1: 'other_posts_read',
	2: 'other_posts_unread',
	};

	const indicatorTypes = ['numPosts', 'indicatorDot'];

	// Filter used as a workaround to speed up the ViewForum request.
	const FILTER_ALL_LANGUAGES =
	'lang:(ar \| bg \| ca \| "zh-hk" \| "zh-cn" \| "zh-tw" \| hr \| cs \| da \| nl \| en \| "en-au" \| "en-gb" \| et \| fil \| fi \| fr \| de \| el \| iw \| hi \| hu \| id \| it \| ja \| ko \| lv \| lt \| ms \| no \| pl \| "pt-br" \| "pt-pt" \| ro \| ru \| sr \| sk \| sl \| es \| "es-419" \| sv \| th \| tr \| uk \| vi)';

	const numPostsForumArraysToSum = [3, 4];

	var authuser = null;

	function isElementInside(element, outerTag) {
	while (element !== null && ('tagName' in element)) {
	if (element.tagName == outerTag) return true;
	element = element.parentNode;
	}

	return false;
	}

	function getPosts(query, forumId) {
	return CCApi(
	'ViewForum', {
	'1': forumId,
	'2': {
	'1': {
	'2': 5,
	},
	'2': {
	'1': 1,
	'2': true,
	},
	'12': query,
	},
	},
	/* authenticated = */ true, authuser);
	}

	function getProfile(userId, forumId) {
	return CCApi(
	'ViewUser', {
	'1': userId,
	'2': 0,
	'3': forumId,
	'4': {
	'20': true,
	},
	},
	/* authenticated = */ true, authuser);
	}

	// Source:
	// https://stackoverflow.com/questions/33063774/communication-from-an-injected-script-to-the-content-script-with-a-response
	var contentScriptRequest = (function() {
	var requestId = 0;
	var prefix = 'TWPT-profileindicator';

	function sendRequest(data) {
	var id = requestId++;

	return new Promise(function(resolve, reject) {
	var listener = function(evt) {
	if (evt.source === window && evt.data && evt.data.prefix === prefix &&
	evt.data.requestId == id) {
	// Deregister self
	window.removeEventListener('message', listener);
	resolve(evt.data.data);
	}
	};

	window.addEventListener('message', listener);

	var payload = {data, id, prefix};

	window.dispatchEvent(
	new CustomEvent('TWPT_sendRequest', {detail: payload}));
	});
	}

	return {sendRequest: sendRequest};
	})();

	// Create profile indicator dot with a loading state, or return the numPosts
	// badge if it is already created.
	function createIndicatorDot(sourceNode, searchURL, options) {
	if (options.numPosts) return document.querySelector('.num-posts-indicator');
	var dotContainer = document.createElement('div');
	dotContainer.classList.add('profile-indicator', 'profile-indicator--loading');
	contentScriptRequest
	.sendRequest({
	'action': 'geti18nMessage',
	'msg': 'inject_profileindicator_loading'
	})
	.then(string => dotContainer.setAttribute('title', string));

	var dotLink = document.createElement('a');
	dotLink.href = searchURL;
	dotLink.innerText = '●';

	dotContainer.appendChild(dotLink);
	sourceNode.parentNode.appendChild(dotContainer);

	return dotContainer;
	}

	// Create badge indicating the number of posts with a loading state
	function createNumPostsBadge(sourceNode, searchURL) {
	var link = document.createElement('a');
	link.href = searchURL;

	var numPostsContainer = document.createElement('div');
	numPostsContainer.classList.add(
	'num-posts-indicator', 'num-posts-indicator--loading');
	contentScriptRequest
	.sendRequest({
	'action': 'geti18nMessage',
	'msg': 'inject_profileindicator_loading'
	})
	.then(string => numPostsContainer.setAttribute('title', string));

	var numPostsSpan = document.createElement('span');
	numPostsSpan.classList.add('num-posts-indicator--num');

	numPostsContainer.appendChild(numPostsSpan);
	link.appendChild(numPostsContainer);
	sourceNode.parentNode.appendChild(link);
	return numPostsContainer;
	}

	// Set the badge text
	function setNumPostsBadge(badge, text) {
	badge.classList.remove('num-posts-indicator--loading');
	badge.querySelector('span').classList.remove(
	'num-posts-indicator--num--loading');
	badge.querySelector('span').textContent = text;
	}

	// Get options and then handle all the indicators
	function getOptionsAndHandleIndicators(sourceNode, isCC) {
	contentScriptRequest.sendRequest({'action': 'getProfileIndicatorOptions'})
	.then(options => handleIndicators(sourceNode, isCC, options));
	}

	// Handle the profile indicator dot
	function handleIndicators(sourceNode, isCC, options) {
	var escapedUsername = escapeUsername(
	(isCC ? sourceNode.querySelector('.name-text').textContent :
	sourceNode.querySelector('span').textContent));

	if (isCC) {
	var threadLink = document.location.href;
	} else {
	var CCLink = document.getElementById('onebar-community-console');
	if (CCLink === null) {
	console.error(
	'[opindicator] The user is not a PE so the dot indicator cannot be shown in TW.');
	return;
	}
	var threadLink = CCLink.href;
	}

	var forumUrlSplit = threadLink.split('/forum/');
	if (forumUrlSplit.length < 2) {
	console.error('[opindicator] Can\'t get forum id.');
	return;
	}

	var forumId = forumUrlSplit[1].split('/')[0];

	/*
	* TODO(avm99963): If the TW filters ever work again, set isCCLink to isCC.
	* Otherwise, issue #29 should be resolved:
	* https://github.com/avm99963/infinitegforums/issues/29
	*/
	var isCCLink = true;

	var query = '(replier:"' + escapedUsername + '" \| creator:"' +
	escapedUsername + '") ' + FILTER_ALL_LANGUAGES;
	var encodedQuery =
	encodeURIComponent(query + (isCCLink ? ' forum:' + forumId : ''));
	var authuserPart =
	(authuser == '0' ?
	'' :
	(isCCLink ? '?' : '&') + 'authuser=' + encodeURIComponent(authuser));
	var searchURL =
	(isCCLink ? 'https://support.google.com/s/community/search/' +
	encodeURIComponent('query=' + encodedQuery) + authuserPart :
	document.location.pathname.split('/thread')[0] +
	'/threads?thread_filter=' + encodedQuery + authuserPart);

	if (options.numPosts) {
	var profileURL = new URL(sourceNode.href);
	var userId =
	profileURL.pathname.split(isCC ? 'user/' : 'profile/')[1].split('/')[0];

	var numPostsContainer = createNumPostsBadge(sourceNode, searchURL);

	getProfile(userId, forumId)
	.then(res => {
	if (!('1' in res) \|\| !('2' in res[1])) {
	throw new Error('Unexpected profile response.');
	return;
	}

	contentScriptRequest.sendRequest({'action': 'getNumPostMonths'})
	.then(months => {
	if (!options.indicatorDot)
	contentScriptRequest
	.sendRequest({
	'action': 'geti18nMessage',
	'msg': 'inject_profileindicatoralt_numposts',
	'placeholders': [months]
	})
	.then(
	string =>
	numPostsContainer.setAttribute('title', string));

	var numPosts = 0;

	for (const index of numPostsForumArraysToSum) {
	if (!(index in res[1][2])) {
	throw new Error('Unexpected profile response.');
	return;
	}

	var i = 0;
	for (const month of res[1][2][index].reverse()) {
	if (i == months) break;
	numPosts += month[3] \|\| 0;
	++i;
	}
	}

	setNumPostsBadge(numPostsContainer, numPosts);
	})
	.catch(
	err => console.error('[opindicator] Unexpected error.', err));
	})
	.catch(err => {
	console.error(
	'[opindicator] Unexpected error. Couldn\'t load profile.', err);
	setNumPostsBadge(numPostsContainer, '?');
	});
	}

	if (options.indicatorDot) {
	var dotContainer = createIndicatorDot(sourceNode, searchURL, options);

	// Query threads in order to see what state the indicator should be in
	getPosts(query, forumId)
	.then(res => {
	// Throw an error when the replies array is not present in the reply.
	if (!('1' in res) \|\| !('2' in res['1'])) {
	// Throw a different error when the numThreads field exists and is
	// equal to 0. This reply can be received, but is enexpected,
	// because we know that the user has replied in at least 1 thread
	// (the current one).
	if (('1' in res) && ('4' in res['1']) && res['1']['4'] == 0)
	throw new Error(
	'Thread list is empty ' +
	'(but the OP has participated in this thread, ' +
	'so it shouldn\'t be empty).');

	throw new Error('Unexpected thread list response.');
	return;
	}

	// Current thread ID
	var threadUrlSplit = threadLink.split('/thread/');
	if (threadUrlSplit.length < 2)
	throw new Error('Can\'t get thread id.');

	var currId = threadUrlSplit[1].split('/')[0];

	var OPStatus = OP_FIRST_POST;

	for (const thread of res['1']['2']) {
	var id = thread['2']['1']['1'] \|\| undefined;
	if (id === undefined \|\| id == currId) continue;

	var isRead = thread['6'] \|\| false;
	if (isRead)
	OPStatus = Math.max(OP_OTHER_POSTS_READ, OPStatus);
	else
	OPStatus = Math.max(OP_OTHER_POSTS_UNREAD, OPStatus);
	}

	var dotContainerPrefix =
	(options.numPosts ? 'num-posts-indicator' : 'profile-indicator');

	if (!options.numPosts)
	dotContainer.classList.remove(dotContainerPrefix + '--loading');
	dotContainer.classList.add(
	dotContainerPrefix + '--' + OPClasses[OPStatus]);
	contentScriptRequest
	.sendRequest({
	'action': 'geti18nMessage',
	'msg': 'inject_profileindicator_' + OPi18n[OPStatus]
	})
	.then(string => dotContainer.setAttribute('title', string));
	})
	.catch(
	err => console.error(
	'[opindicator] Unexpected error. Couldn\'t load recent posts.',
	err));
	}
	}

	if (CCRegex.test(location.href)) {
	// We are in the Community Console
	var startup =
	JSON.parse(document.querySelector('html').getAttribute('data-startup'));

	authuser = startup[2][1] \|\| '0';

	// When the OP's username is found, call getOptionsAndHandleIndicators
	function mutationCallback(mutationList, observer) {
	mutationList.forEach((mutation) => {
	if (mutation.type == 'childList') {
	mutation.addedNodes.forEach(function(node) {
	if (node.tagName == 'A' && ('href' in node) &&
	CCProfileRegex.test(node.href) &&
	node.matches(
	'ec-question ec-message-header .name-section ec-user-link a')) {
	console.info('Handling profile indicator via mutation callback.');
	getOptionsAndHandleIndicators(node, true);
	}
	});
	}
	});
	};

	var observerOptions = {
	childList: true,
	subtree: true,
	}

	// Before starting the mutation Observer, check if the OP's username link is
	// already part of the page
	var node = document.querySelector(
	'ec-question ec-message-header .name-section ec-user-link a');
	if (node !== null) {
	console.info('Handling profile indicator via first check.');
	getOptionsAndHandleIndicators(node, true);
	}

	var mutationObserver = new MutationObserver(mutationCallback);
	mutationObserver.observe(document.body, observerOptions);
	} else {
	// We are in TW
	authuser = (new URL(location.href)).searchParams.get('authuser') \|\| '0';

	var node =
	document.querySelector('.thread-question a.user-info-display-name');
	if (node !== null)
	getOptionsAndHandleIndicators(node, false);
	else
	console.error('[opindicator] Couldn\'t find username.');
	}