ReactMarkdown -> killy.format

1 files changed, 336 insertions, 0 deletions

diff --git a/vnext/src/utils/embed.js b/vnext/src/utils/embed.js
new file mode 100644
index 00000000..25c37142
--- /dev/null
+++ b/vnext/src/utils/embed.js
@@ -0,0 +1,336 @@
+
+function insertAfter(newNode, referenceNode) {
+  referenceNode.parentNode.insertBefore(newNode, referenceNode.nextSibling);
+}
+
+function setContent(containerNode, ...newNodes) {
+  removeAllFrom(containerNode);
+  newNodes.forEach(n => containerNode.appendChild(n));
+  return containerNode;
+}
+
+function removeAllFrom(fromNode) {
+  for (let c; c = fromNode.lastChild; ) { fromNode.removeChild(c); }
+}
+
+function htmlEscape(html) {
+  let textarea = document.createElement('textarea');
+  textarea.textContent = html;
+  return textarea.innerHTML;
+}
+
+// rules :: [{pr: number, re: RegExp, with: string}]
+// rules :: [{pr: number, re: RegExp, with: Function}]
+// rules :: [{pr: number, re: RegExp, brackets: true, with: [string, string]}]
+// rules :: [{pr: number, re: RegExp, brackets: true, with: [string, string, Function]}]
+function formatText(txt, rules) {
+  let idCounter = 0;
+  function nextId() { return idCounter++; }
+  function ft(txt, rules) {
+    let matches = rules.map(r => { r.re.lastIndex = 0; return [r, r.re.exec(txt)]; })
+                       .filter(([,m]) => m !== null)
+                       .sort(([r1,m1],[r2,m2]) => (r1.pr - r2.pr) || (m1.index - m2.index));
+    if (matches && matches.length > 0) {
+      let [rule, match] = matches[0];
+      let subsequentRules = rules.filter(r => r.pr >= rule.pr);
+      let idStr = `<>(${nextId()})<>`;
+      let outerStr = txt.substring(0, match.index) + idStr + txt.substring(rule.re.lastIndex);
+      let innerStr = (rule.brackets)
+        ? (() => { let [l ,r ,f] = rule.with; return l + ft((f ? f(match[1]) : match[1]), subsequentRules) + r; })()
+        : match[0].replace(rule.re, rule.with);
+      return ft(outerStr, subsequentRules).replace(idStr, innerStr);
+    }
+    return txt;
+  }
+  return ft(htmlEscape(txt), rules); // idStr above relies on the fact the text is escaped
+}
+
+function fixWwwLink(url) {
+  return url.replace(/^(?!([a-z]+:)?\/\/)/i, '//');
+}
+
+function makeNewNode(embedType, aNode, reResult) {
+  const withClasses = el => {
+    if (embedType.className) {
+      el.classList.add(...embedType.className.split(' '));
+    }
+    return el;
+  };
+  return embedType.makeNode(aNode, reResult, withClasses(document.createElement('div')));
+}
+
+function makeIframe(src, w, h, scrolling='no') {
+  let iframe = document.createElement('iframe');
+  iframe.style.width = w;
+  iframe.style.height = h;
+  iframe.frameBorder = 0;
+  iframe.scrolling = scrolling;
+  iframe.setAttribute('allowFullScreen', '');
+  iframe.src = src;
+  iframe.innerHTML = 'Cannot show iframes.';
+  return iframe;
+}
+
+function makeResizableToRatio(element, ratio) {
+  element.dataset['ratio'] = ratio;
+  makeResizable(element, w => w * element.dataset['ratio']);
+}
+
+// calcHeight :: Number -> Number -- calculate element height for a given width
+function makeResizable(element, calcHeight) {
+  const setHeight = el => {
+    if (document.body.contains(el) && (el.offsetWidth > 0)) {
+      el.style.height = (calcHeight(el.offsetWidth)).toFixed(2) + 'px';
+    }
+  };
+  window.addEventListener('resize', () => setHeight(element));
+  setHeight(element);
+}
+
+function extractDomain(url) {
+  const domainRe = /^(?:https?:\/\/)?(?:[^@\/\n]+@)?(?:www\.)?([^:\/\n]+)/i;
+  return domainRe.exec(url)[1];
+}
+
+function urlReplace(match, p1, p2, p3) {
+  let isBrackets = (p1 !== undefined);
+  return (isBrackets)
+    ? `<a href="${fixWwwLink(p2 || p3)}">${p1}</a>`
+    : `<a href="${fixWwwLink(match)}">${extractDomain(match)}</a>`;
+}
+
+function urlReplaceInCode(match, p1, p2, p3) {
+  let isBrackets = (p1 !== undefined);
+  return (isBrackets)
+    ? `<a href="${fixWwwLink(p2 || p3)}">${match}</a>`
+    : `<a href="${fixWwwLink(match)}">${match}</a>`;
+}
+
+function messageReplyReplace(messageId) {
+  return function(match, mid, rid) {
+    let replyPart = (rid && rid != '0') ? '#' + rid : '';
+    return `<a href="/${mid || messageId}${replyPart}">${match}</a>`;
+  };
+}
+
+/**
+ * Given "txt" message in unescaped plaintext with Juick markup, this function
+ * returns escaped formatted HTML string.
+ *
+ * @param {string} txt
+ * @param {string} messageId - current message id
+ * @param {boolean} isCode
+ * @returns {string}
+ */
+function juickFormat(txt, messageId, isCode) {
+  const urlRe = /(?:\[([^\]\[]+)\](?:\[([^\]]+)\]|\(((?:[a-z]+:\/\/|www\.|ftp\.)(?:\([-\w+*&@#/%=~|$?!:;,.]*\)|[-\w+*&@#/%=~|$?!:;,.])*(?:\([-\w+*&@#/%=~|$?!:;,.]*\)|[\w+*&@#/%=~|$]))\))|\b(?:[a-z]+:\/\/|www\.|ftp\.)(?:\([-\w+*&@#/%=~|$?!:;,.]*\)|[-\w+*&@#/%=~|$?!:;,.])*(?:\([-\w+*&@#/%=~|$?!:;,.]*\)|[\w+*&@#/%=~|$]))/gi;
+  const bqReplace = m => m.replace(/^(?:>|&gt;)\s?/gmi, '');
+  return (isCode)
+    ? formatText(txt, [
+      { pr: 1, re: urlRe, with: urlReplaceInCode },
+      { pr: 1, re: /\B(?:#(\d+))?(?:\/(\d+))?\b/g, with: messageReplyReplace(messageId) },
+      { pr: 1, re: /\B@([\w-]+)\b/gi, with: '<a href="/$1">@$1</a>' },
+    ])
+    : formatText(txt, [
+      { pr: 0, re: /((?:^(?:>|&gt;)\s?[\s\S]+?$\n?)+)/gmi, brackets: true, with: ['<q>', '</q>', bqReplace] },
+      { pr: 1, re: urlRe, with: urlReplace },
+      { pr: 1, re: /\B(?:#(\d+))?(?:\/(\d+))?\b/g, with: messageReplyReplace(messageId) },
+      { pr: 1, re: /\B@([\w-]+)\b/gi, with: '<a href="/$1">@$1</a>' },
+      { pr: 2, re: /\B\*([^\n]+?)\*((?=\s)|(?=$)|(?=[!\"#$%&'*+,\-./:;<=>?@[\]^_`{|}~()]+))/g, brackets: true, with: ['<b>', '</b>'] },
+      { pr: 2, re: /\B\/([^\n]+?)\/((?=\s)|(?=$)|(?=[!\"#$%&'*+,\-./:;<=>?@[\]^_`{|}~()]+))/g, brackets: true, with: ['<i>', '</i>'] },
+      { pr: 2, re: /\b\_([^\n]+?)\_((?=\s)|(?=$)|(?=[!\"#$%&'*+,\-./:;<=>?@[\]^_`{|}~()]+))/g, brackets: true, with: ['<span class="u">', '</span>'] },
+      { pr: 3, re: /\n/g, with: '<br/>' },
+    ]);
+}
+
+function getEmbeddableLinkTypes() {
+  return [
+    {
+      name: 'Jpeg and png images',
+      id: 'embed_jpeg_and_png_images',
+      className: 'picture compact',
+      ctsDefault: false,
+      re: /\.(jpe?g|png|svg)(:[a-zA-Z]+)?(?:\?[\w&;\?=]*)?$/i,
+      makeNode: function(aNode, reResult, div) {
+        div.innerHTML = `<a href="${aNode.href}"><img src="${aNode.href}"></a>`;
+        return div;
+      }
+    },
+    {
+      name: 'Gif images',
+      id: 'embed_gif_images',
+      className: 'picture compact',
+      ctsDefault: true,
+      re: /\.gif(:[a-zA-Z]+)?(?:\?[\w&;\?=]*)?$/i,
+      makeNode: function(aNode, reResult, div) {
+        div.innerHTML = `<a href="${aNode.href}"><img src="${aNode.href}"></a>`;
+        return div;
+      }
+    },
+    {
+      name: 'Video (webm, mp4, ogv)',
+      id: 'embed_webm_and_mp4_videos',
+      className: 'video compact',
+      ctsDefault: false,
+      re: /\.(webm|mp4|m4v|ogv)(?:\?[\w&;\?=]*)?$/i,
+      makeNode: function(aNode, reResult, div) {
+        div.innerHTML = `<video src="${aNode.href}" title="${aNode.href}" controls></video>`;
+        return div;
+      }
+    },
+    {
+      name: 'Audio (mp3, ogg, weba, opus, m4a, oga, wav)',
+      id: 'embed_sound_files',
+      className: 'audio singleColumn',
+      ctsDefault: false,
+      re: /\.(mp3|ogg|weba|opus|m4a|oga|wav)(?:\?[\w&;\?=]*)?$/i,
+      makeNode: function(aNode, reResult, div) {
+        div.innerHTML = `<audio src="${aNode.href}" title="${aNode.href}" controls></audio>`;
+        return div;
+      }
+    },
+    {
+      name: 'YouTube videos (and playlists)',
+      id: 'embed_youtube_videos',
+      className: 'youtube resizableV singleColumn',
+      ctsDefault: false,
+      re: /^(?:https?:)?\/\/(?:www\.|m\.|gaming\.)?(?:youtu(?:(?:\.be\/|be\.com\/(?:v|embed)\/)([-\w]+)|be\.com\/watch)((?:(?:\?|&(?:amp;)?)(?:\w+=[-\.\w]*[-\w]))*)|youtube\.com\/playlist\?list=([-\w]*)(&(amp;)?[-\w\?=]*)?)/i,
+      makeNode: function(aNode, reResult, div) {
+        let [url, v, args, plist] = reResult;
+        let iframeUrl;
+        if (plist) {
+          iframeUrl = '//www.youtube-nocookie.com/embed/videoseries?list=' + plist;
+        } else {
+          let pp = {}; args.replace(/^\?/, '')
+                           .split('&')
+                           .map(s => s.split('='))
+                           .forEach(z => pp[z[0]] = z[1]);
+          let embedArgs = { rel: '0' };
+          if (pp.t) {
+            const tre = /^(?:(\d+)|(?:(\d+)h)?(?:(\d+)m)?(\d+)s|(?:(\d+)h)?(\d+)m|(\d+)h)$/i;
+            let [, t, h, m, s, h1, m1, h2] = tre.exec(pp.t);
+            embedArgs['start'] = (+t) || ((+(h || h1 || h2 || 0))*60*60 + (+(m || m1 || 0))*60 + (+(s || 0)));
+          }
+          if (pp.list) {
+            embedArgs['list'] = pp.list;
+          }
+          v = v || pp.v;
+          let argsStr = Object.keys(embedArgs)
+                              .map(k => `${k}=${embedArgs[k]}`)
+                              .join('&');
+          iframeUrl = `//www.youtube-nocookie.com/embed/${v}?${argsStr}`;
+        }
+        let iframe = makeIframe(iframeUrl, '100%', '360px');
+        iframe.onload = () => makeResizableToRatio(iframe, 9.0 / 16.0);
+        return setContent(div, iframe);
+      }
+    },
+    {
+      name: 'Vimeo videos',
+      id: 'embed_vimeo_videos',
+      className: 'vimeo resizableV',
+      ctsDefault: false,
+      re: /^(?:https?:)?\/\/(?:www\.)?(?:player\.)?vimeo\.com\/(?:video\/|album\/[\d]+\/video\/)?([\d]+)/i,
+      makeNode: function(aNode, reResult, div) {
+        let iframe = makeIframe('//player.vimeo.com/video/' + reResult[1], '100%', '360px');
+        iframe.onload = () => makeResizableToRatio(iframe, 9.0 / 16.0);
+        return setContent(div, iframe);
+      }
+    }
+  ];
+}
+
+function embedLink(aNode, linkTypes, container, afterNode) {
+  let anyEmbed = false;
+  let linkId = (aNode.href.replace(/^https?:/i, '').replace(/\'/gi,''));
+  let sameEmbed = container.querySelector(`*[data-linkid='${linkId}']`); // do not embed the same thing twice
+  if (sameEmbed === null) {
+    anyEmbed = [].some.call(linkTypes, function(linkType) {
+        let reResult = linkType.re.exec(aNode.href);
+        if (reResult) {
+          if (linkType.match && (linkType.match(aNode, reResult) === false)) { return false; }
+          let newNode = makeNewNode(linkType, aNode, reResult);
+          if (!newNode) { return false; }
+          newNode.setAttribute('data-linkid', linkId);
+          if (afterNode) {
+            insertAfter(newNode, afterNode);
+          } else {
+            container.appendChild(newNode);
+          }
+          aNode.classList.add('embedLink');
+          return true;
+        }
+    });
+  }
+  return anyEmbed;
+}
+
+function embedLinks(aNodes, container) {
+  let anyEmbed = false;
+  let embeddableLinkTypes = getEmbeddableLinkTypes();
+  Array.from(aNodes).forEach(aNode => {
+    let isEmbedded = embedLink(aNode, embeddableLinkTypes, container);
+    anyEmbed = anyEmbed || isEmbedded;
+  });
+  return anyEmbed;
+}
+
+/**
+ * Embed all the links inside element "x" that match to "allLinksSelector".
+ * All the embedded media is placed inside "div.embedContainer".
+ * "div.embedContainer" is inserted before an element matched by "beforeNodeSelector"
+ * if not present. Existing container is used otherwise.
+ *
+ * @param {Element} x
+ * @param {string} beforeNodeSelector
+ * @param {string} allLinksSelector
+ */
+function embedLinksToX(x, beforeNodeSelector, allLinksSelector) {
+  let isCtsPost = false;
+  let allLinks = x.querySelectorAll(allLinksSelector);
+
+  let existingContainer = x.querySelector('div.embedContainer');
+  if (existingContainer) {
+    embedLinks(allLinks, existingContainer);
+  } else {
+    let embedContainer = document.createElement('div');
+    embedContainer.className = 'embedContainer';
+
+    let anyEmbed = embedLinks(allLinks, embedContainer);
+    if (anyEmbed) {
+      let beforeNode = x.querySelector(beforeNodeSelector);
+      x.insertBefore(embedContainer, beforeNode);
+    }
+  }
+}
+
+function embedLinksToArticles() {
+  let beforeNodeSelector = 'nav.l';
+  let allLinksSelector = 'p:not(.ir) a, pre a';
+  Array.from(document.querySelectorAll('#content article')).forEach(article => {
+    embedLinksToX(article, beforeNodeSelector, allLinksSelector);
+  });
+}
+
+function embedLinksToPost() {
+  let beforeNodeSelector = '.msg-txt + *';
+  let allLinksSelector = '.msg-txt a';
+  Array.from(document.querySelectorAll('#content .msg-cont')).forEach(msg => {
+    embedLinksToX(msg, beforeNodeSelector, allLinksSelector);
+  });
+}
+
+/**
+ * Embed all the links in all messages/replies on the page.
+ */
+function embedAll() {
+  if (document.querySelector('#content article[data-mid]')) {
+    embedLinksToArticles();
+  } else {
+    embedLinksToPost();
+  }
+}
+
+exports.embedAll = embedAll;
+exports.embedLinksToX = embedLinksToX;
+exports.format = juickFormat;