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authorNunoSempere <nuno.sempere@protonmail.com>2023-03-28 11:19:11 -0600
committerNunoSempere <nuno.sempere@protonmail.com>2023-03-28 11:19:11 -0600
commitbbcf1dabd26bb4e93aa4780d1771c3b449c068ec (patch)
tree375468f139ee1032626969d9965cd18eaaec50e8 /src/plugins/readability
parentca59138a2aef96960381f986b8c683634e4d8e63 (diff)
Revert "tweak: move things around"
This reverts commit ca59138a2aef96960381f986b8c683634e4d8e63.
Diffstat (limited to 'src/plugins/readability')
-rw-r--r--src/plugins/readability/README.md2
-rwxr-xr-xsrc/plugins/readability/readabilitybin17056 -> 0 bytes
-rw-r--r--src/plugins/readability/readability.c30
-rw-r--r--src/plugins/readability/readability.h8
-rw-r--r--src/plugins/readability/readability.js2401
-rwxr-xr-xsrc/plugins/readability/recompute_READABILITY_N.sh8
6 files changed, 0 insertions, 2449 deletions
diff --git a/src/plugins/readability/README.md b/src/plugins/readability/README.md
deleted file mode 100644
index 2a19a8e..0000000
--- a/src/plugins/readability/README.md
+++ /dev/null
@@ -1,2 +0,0 @@
-This code reimplements firefox readability mode. Code taken from <https://raw.githubusercontent.com/ushnisha/readability-reader-webextensions/master/content_scripts/tranquilize.js>
-
diff --git a/src/plugins/readability/readability b/src/plugins/readability/readability
deleted file mode 100755
index 2c70985..0000000
--- a/src/plugins/readability/readability
+++ /dev/null
Binary files differ
diff --git a/src/plugins/readability/readability.c b/src/plugins/readability/readability.c
deleted file mode 100644
index bc2f02f..0000000
--- a/src/plugins/readability/readability.c
+++ /dev/null
@@ -1,30 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#define READABILITY_N 85133 + 1000
-
-void read_readability_js(char* string)
-{
- FILE* fp = fopen("/home/loki/Documents/core/software/fresh/C/rose-browser/rosenrot/plugins/readability/readability.js", "r");
- if (!fp) { // fp is NULL, fopen failed
- fprintf(stderr, "Failed to open file\n");
- string = NULL;
- return;
- }
- int i = 0;
- int c;
- while ((c = fgetc(fp)) != EOF) {
- string[i++] = c;
- }
- string[i] = '\0';
- fclose(fp);
-}
-
-/*
-int main(){
- char* readability_js = malloc(READABILITY_N+1);
- read_readability_js(readability_js);
- printf("%s", readability_js);
- free(readability_js);
-}
-*/
diff --git a/src/plugins/readability/readability.h b/src/plugins/readability/readability.h
deleted file mode 100644
index 6a21a8c..0000000
--- a/src/plugins/readability/readability.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef READABILITY
-#define READABILITY
-
-#define READABILITY_N 85133 + 1000
-
-void read_readability_js(char* string);
-
-#endif
diff --git a/src/plugins/readability/readability.js b/src/plugins/readability/readability.js
deleted file mode 100644
index 0532bba..0000000
--- a/src/plugins/readability/readability.js
+++ /dev/null
@@ -1,2401 +0,0 @@
-/*eslint-env es6:false*/
-/*
- * Copyright (c) 2010 Arc90 Inc
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * This code is heavily based on Arc90's readability.js (1.7.1) script
- * available at: http://code.google.com/p/arc90labs-readability
- */
-
-/**
- * Public constructor.
- * @param {HTMLDocument} doc The document to parse.
- * @param {Object} options The options object.
- */
-function Readability(doc, options) {
- // In some older versions, people passed a URI as the first argument. Cope:
- if (options && options.documentElement) {
- doc = options;
- options = arguments[2];
- } else if (!doc || !doc.documentElement) {
- throw new Error("First argument to Readability constructor should be a document object.");
- }
- options = options || {};
-
- this._doc = doc;
- this._docJSDOMParser = this._doc.firstChild.__JSDOMParser__;
- this._articleTitle = null;
- this._articleByline = null;
- this._articleDir = null;
- this._articleSiteName = null;
- this._attempts = [];
-
- // Configurable options
- this._debug = !!options.debug;
- this._maxElemsToParse = options.maxElemsToParse || this.DEFAULT_MAX_ELEMS_TO_PARSE;
- this._nbTopCandidates = options.nbTopCandidates || this.DEFAULT_N_TOP_CANDIDATES;
- this._charThreshold = options.charThreshold || this.DEFAULT_CHAR_THRESHOLD;
- this._classesToPreserve = this.CLASSES_TO_PRESERVE.concat(options.classesToPreserve || []);
- this._keepClasses = !!options.keepClasses;
- this._serializer = options.serializer || function(el) {
- return el.innerHTML;
- };
- this._disableJSONLD = !!options.disableJSONLD;
-
- // Start with all flags set
- this._flags = this.FLAG_STRIP_UNLIKELYS |
- this.FLAG_WEIGHT_CLASSES |
- this.FLAG_CLEAN_CONDITIONALLY;
-
-
- // Control whether log messages are sent to the console
- if (this._debug) {
- let logNode = function(node) {
- if (node.nodeType == node.TEXT_NODE) {
- return `${node.nodeName} ("${node.textContent}")`;
- }
- let attrPairs = Array.from(node.attributes || [], function(attr) {
- return `${attr.name}="${attr.value}"`;
- }).join(" ");
- return `<${node.localName} ${attrPairs}>`;
- };
- this.log = function () {
- if (typeof dump !== "undefined") {
- var msg = Array.prototype.map.call(arguments, function(x) {
- return (x && x.nodeName) ? logNode(x) : x;
- }).join(" ");
- dump("Reader: (Readability) " + msg + "\n");
- } else if (typeof console !== "undefined") {
- let args = Array.from(arguments, arg => {
- if (arg && arg.nodeType == this.ELEMENT_NODE) {
- return logNode(arg);
- }
- return arg;
- });
- args.unshift("Reader: (Readability)");
- console.log.apply(console, args);
- }
- };
- } else {
- this.log = function () {};
- }
-}
-
-Readability.prototype = {
- FLAG_STRIP_UNLIKELYS: 0x1,
- FLAG_WEIGHT_CLASSES: 0x2,
- FLAG_CLEAN_CONDITIONALLY: 0x4,
-
- // https://developer.mozilla.org/en-US/docs/Web/API/Node/nodeType
- ELEMENT_NODE: 1,
- TEXT_NODE: 3,
-
- // Max number of nodes supported by this parser. Default: 0 (no limit)
- DEFAULT_MAX_ELEMS_TO_PARSE: 0,
-
- // The number of top candidates to consider when analysing how
- // tight the competition is among candidates.
- DEFAULT_N_TOP_CANDIDATES: 5,
-
- // Element tags to score by default.
- DEFAULT_TAGS_TO_SCORE: "section,h2,h3,h4,h5,h6,p,td,pre".toUpperCase().split(","),
-
- // The default number of chars an article must have in order to return a result
- DEFAULT_CHAR_THRESHOLD: 500,
-
- // All of the regular expressions in use within readability.
- // Defined up here so we don't instantiate them repeatedly in loops.
- REGEXPS: {
- // NOTE: These two regular expressions are duplicated in
- // Readability-readerable.js. Please keep both copies in sync.
- unlikelyCandidates: /-ad-|ai2html|banner|breadcrumbs|combx|comment|community|cover-wrap|disqus|extra|footer|gdpr|header|legends|menu|related|remark|replies|rss|shoutbox|sidebar|skyscraper|social|sponsor|supplemental|ad-break|agegate|pagination|pager|popup|yom-remote/i,
- okMaybeItsACandidate: /and|article|body|column|content|main|shadow/i,
-
- positive: /article|body|content|entry|hentry|h-entry|main|page|pagination|post|text|blog|story/i,
- negative: /-ad-|hidden|^hid$| hid$| hid |^hid |banner|combx|comment|com-|contact|foot|footer|footnote|gdpr|masthead|media|meta|outbrain|promo|related|scroll|share|shoutbox|sidebar|skyscraper|sponsor|shopping|tags|tool|widget/i,
- extraneous: /print|archive|comment|discuss|e[\-]?mail|share|reply|all|login|sign|single|utility/i,
- byline: /byline|author|dateline|writtenby|p-author/i,
- replaceFonts: /<(\/?)font[^>]*>/gi,
- normalize: /\s{2,}/g,
- videos: /\/\/(www\.)?((dailymotion|youtube|youtube-nocookie|player\.vimeo|v\.qq)\.com|(archive|upload\.wikimedia)\.org|player\.twitch\.tv)/i,
- shareElements: /(\b|_)(share|sharedaddy)(\b|_)/i,
- nextLink: /(next|weiter|continue|>([^\|]|$)|»([^\|]|$))/i,
- prevLink: /(prev|earl|old|new|<|«)/i,
- tokenize: /\W+/g,
- whitespace: /^\s*$/,
- hasContent: /\S$/,
- hashUrl: /^#.+/,
- srcsetUrl: /(\S+)(\s+[\d.]+[xw])?(\s*(?:,|$))/g,
- b64DataUrl: /^data:\s*([^\s;,]+)\s*;\s*base64\s*,/i,
- // See: https://schema.org/Article
- jsonLdArticleTypes: /^Article|AdvertiserContentArticle|NewsArticle|AnalysisNewsArticle|AskPublicNewsArticle|BackgroundNewsArticle|OpinionNewsArticle|ReportageNewsArticle|ReviewNewsArticle|Report|SatiricalArticle|ScholarlyArticle|MedicalScholarlyArticle|SocialMediaPosting|BlogPosting|LiveBlogPosting|DiscussionForumPosting|TechArticle|APIReference$/
- },
-
- UNLIKELY_ROLES: [ "menu", "menubar", "complementary", "navigation", "alert", "alertdialog", "dialog" ],
-
- DIV_TO_P_ELEMS: new Set([ "BLOCKQUOTE", "DL", "DIV", "IMG", "OL", "P", "PRE", "TABLE", "UL" ]),
-
- ALTER_TO_DIV_EXCEPTIONS: ["DIV", "ARTICLE", "SECTION", "P"],
-
- PRESENTATIONAL_ATTRIBUTES: [ "align", "background", "bgcolor", "border", "cellpadding", "cellspacing", "frame", "hspace", "rules", "style", "valign", "vspace" ],
-
- DEPRECATED_SIZE_ATTRIBUTE_ELEMS: [ "TABLE", "TH", "TD", "HR", "PRE" ],
-
- // The commented out elements qualify as phrasing content but tend to be
- // removed by readability when put into paragraphs, so we ignore them here.
- PHRASING_ELEMS: [
- // "CANVAS", "IFRAME", "SVG", "VIDEO",
- "ABBR", "AUDIO", "B", "BDO", "BR", "BUTTON", "CITE", "CODE", "DATA",
- "DATALIST", "DFN", "EM", "EMBED", "I", "IMG", "INPUT", "KBD", "LABEL",
- "MARK", "MATH", "METER", "NOSCRIPT", "OBJECT", "OUTPUT", "PROGRESS", "Q",
- "RUBY", "SAMP", "SCRIPT", "SELECT", "SMALL", "SPAN", "STRONG", "SUB",
- "SUP", "TEXTAREA", "TIME", "VAR", "WBR"
- ],
-
- // These are the classes that readability sets itself.
- CLASSES_TO_PRESERVE: [ "page" ],
-
- // These are the list of HTML entities that need to be escaped.
- HTML_ESCAPE_MAP: {
- "lt": "<",
- "gt": ">",
- "amp": "&",
- "quot": '"',
- "apos": "'",
- },
-
- /**
- * Run any post-process modifications to article content as necessary.
- *
- * @param Element
- * @return void
- **/
- _postProcessContent: function(articleContent) {
- // Readability cannot open relative uris so we convert them to absolute uris.
- this._fixRelativeUris(articleContent);
-
- this._simplifyNestedElements(articleContent);
-
- if (!this._keepClasses) {
- // Remove classes.
- this._cleanClasses(articleContent);
- }
- },
-
- /**
- * Iterates over a NodeList, calls `filterFn` for each node and removes node
- * if function returned `true`.
- *
- * If function is not passed, removes all the nodes in node list.
- *
- * @param NodeList nodeList The nodes to operate on
- * @param Function filterFn the function to use as a filter
- * @return void
- */
- _removeNodes: function(nodeList, filterFn) {
- // Avoid ever operating on live node lists.
- if (this._docJSDOMParser && nodeList._isLiveNodeList) {
- throw new Error("Do not pass live node lists to _removeNodes");
- }
- for (var i = nodeList.length - 1; i >= 0; i--) {
- var node = nodeList[i];
- var parentNode = node.parentNode;
- if (parentNode) {
- if (!filterFn || filterFn.call(this, node, i, nodeList)) {
- parentNode.removeChild(node);
- }
- }
- }
- },
-
- /**
- * Iterates over a NodeList, and calls _setNodeTag for each node.
- *
- * @param NodeList nodeList The nodes to operate on
- * @param String newTagName the new tag name to use
- * @return void
- */
- _replaceNodeTags: function(nodeList, newTagName) {
- // Avoid ever operating on live node lists.
- if (this._docJSDOMParser && nodeList._isLiveNodeList) {
- throw new Error("Do not pass live node lists to _replaceNodeTags");
- }
- for (const node of nodeList) {
- this._setNodeTag(node, newTagName);
- }
- },
-
- /**
- * Iterate over a NodeList, which doesn't natively fully implement the Array
- * interface.
- *
- * For convenience, the current object context is applied to the provided
- * iterate function.
- *
- * @param NodeList nodeList The NodeList.
- * @param Function fn The iterate function.
- * @return void
- */
- _forEachNode: function(nodeList, fn) {
- Array.prototype.forEach.call(nodeList, fn, this);
- },
-
- /**
- * Iterate over a NodeList, and return the first node that passes
- * the supplied test function
- *
- * For convenience, the current object context is applied to the provided
- * test function.
- *
- * @param NodeList nodeList The NodeList.
- * @param Function fn The test function.
- * @return void
- */
- _findNode: function(nodeList, fn) {
- return Array.prototype.find.call(nodeList, fn, this);
- },
-
- /**
- * Iterate over a NodeList, return true if any of the provided iterate
- * function calls returns true, false otherwise.
- *
- * For convenience, the current object context is applied to the
- * provided iterate function.
- *
- * @param NodeList nodeList The NodeList.
- * @param Function fn The iterate function.
- * @return Boolean
- */
- _someNode: function(nodeList, fn) {
- return Array.prototype.some.call(nodeList, fn, this);
- },
-
- /**
- * Iterate over a NodeList, return true if all of the provided iterate
- * function calls return true, false otherwise.
- *
- * For convenience, the current object context is applied to the
- * provided iterate function.
- *
- * @param NodeList nodeList The NodeList.
- * @param Function fn The iterate function.
- * @return Boolean
- */
- _everyNode: function(nodeList, fn) {
- return Array.prototype.every.call(nodeList, fn, this);
- },
-
- /**
- * Concat all nodelists passed as arguments.
- *
- * @return ...NodeList
- * @return Array
- */
- _concatNodeLists: function() {
- var slice = Array.prototype.slice;
- var args = slice.call(arguments);
- var nodeLists = args.map(function(list) {
- return slice.call(list);
- });
- return Array.prototype.concat.apply([], nodeLists);
- },
-
- _getAllNodesWithTag: function(node, tagNames) {
- if (node.querySelectorAll) {
- return node.querySelectorAll(tagNames.join(","));
- }
- return [].concat.apply([], tagNames.map(function(tag) {
- var collection = node.getElementsByTagName(tag);
- return Array.isArray(collection) ? collection : Array.from(collection);
- }));
- },
-
- /**
- * Removes the class="" attribute from every element in the given
- * subtree, except those that match CLASSES_TO_PRESERVE and
- * the classesToPreserve array from the options object.
- *
- * @param Element
- * @return void
- */
- _cleanClasses: function(node) {
- var classesToPreserve = this._classesToPreserve;
- var className = (node.getAttribute("class") || "")
- .split(/\s+/)
- .filter(function(cls) {
- return classesToPreserve.indexOf(cls) != -1;
- })
- .join(" ");
-
- if (className) {
- node.setAttribute("class", className);
- } else {
- node.removeAttribute("class");
- }
-
- for (node = node.firstElementChild; node; node = node.nextElementSibling) {
- this._cleanClasses(node);
- }
- },
-
- /**
- * Converts each <a> and <img> uri in the given element to an absolute URI,
- * ignoring #ref URIs.
- *
- * @param Element
- * @return void
- */
- _fixRelativeUris: function(articleContent) {
- var baseURI = this._doc.baseURI;
- var documentURI = this._doc.documentURI;
- function toAbsoluteURI(uri) {
- // Leave hash links alone if the base URI matches the document URI:
- if (baseURI == documentURI && uri.charAt(0) == "#") {
- return uri;
- }
-
- // Otherwise, resolve against base URI:
- try {
- return new URL(uri, baseURI).href;
- } catch (ex) {
- // Something went wrong, just return the original:
- }
- return uri;
- }
-
- var links = this._getAllNodesWithTag(articleContent, ["a"]);
- this._forEachNode(links, function(link) {
- var href = link.getAttribute("href");
- if (href) {
- // Remove links with javascript: URIs, since
- // they won't work after scripts have been removed from the page.
- if (href.indexOf("javascript:") === 0) {
- // if the link only contains simple text content, it can be converted to a text node
- if (link.childNodes.length === 1 && link.childNodes[0].nodeType === this.TEXT_NODE) {
- var text = this._doc.createTextNode(link.textContent);
- link.parentNode.replaceChild(text, link);
- } else {
- // if the link has multiple children, they should all be preserved
- var container = this._doc.createElement("span");
- while (link.firstChild) {
- container.appendChild(link.firstChild);
- }
- link.parentNode.replaceChild(container, link);
- }
- } else {
- link.setAttribute("href", toAbsoluteURI(href));
- }
- }
- });
-
- var medias = this._getAllNodesWithTag(articleContent, [
- "img", "picture", "figure", "video", "audio", "source"
- ]);
-
- this._forEachNode(medias, function(media) {
- var src = media.getAttribute("src");
- var poster = media.getAttribute("poster");
- var srcset = media.getAttribute("srcset");
-
- if (src) {
- media.setAttribute("src", toAbsoluteURI(src));
- }
-
- if (poster) {
- media.setAttribute("poster", toAbsoluteURI(poster));
- }
-
- if (srcset) {
- var newSrcset = srcset.replace(this.REGEXPS.srcsetUrl, function(_, p1, p2, p3) {
- return toAbsoluteURI(p1) + (p2 || "") + p3;
- });
-
- media.setAttribute("srcset", newSrcset);
- }
- });
- },
-
- _simplifyNestedElements: function(articleContent) {
- var node = articleContent;
-
- while (node) {
- if (node.parentNode && ["DIV", "SECTION"].includes(node.tagName) && !(node.id && node.id.startsWith("readability"))) {
- if (this._isElementWithoutContent(node)) {
- node = this._removeAndGetNext(node);
- continue;
- } else if (this._hasSingleTagInsideElement(node, "DIV") || this._hasSingleTagInsideElement(node, "SECTION")) {
- var child = node.children[0];
- for (var i = 0; i < node.attributes.length; i++) {
- child.setAttribute(node.attributes[i].name, node.attributes[i].value);
- }
- node.parentNode.replaceChild(child, node);
- node = child;
- continue;
- }
- }
-
- node = this._getNextNode(node);
- }
- },
-
- /**
- * Get the article title as an H1.
- *
- * @return string
- **/
- _getArticleTitle: function() {
- var doc = this._doc;
- var curTitle = "";
- var origTitle = "";
-
- try {
- curTitle = origTitle = doc.title.trim();
-
- // If they had an element with id "title" in their HTML
- if (typeof curTitle !== "string")
- curTitle = origTitle = this._getInnerText(doc.getElementsByTagName("title")[0]);
- } catch (e) {/* ignore exceptions setting the title. */}
-
- var titleHadHierarchicalSeparators = false;
- function wordCount(str) {
- return str.split(/\s+/).length;
- }
-
- // If there's a separator in the title, first remove the final part
- if ((/ [\|\-\\\/>»] /).test(curTitle)) {
- titleHadHierarchicalSeparators = / [\\\/>»] /.test(curTitle);
- curTitle = origTitle.replace(/(.*)[\|\-\\\/>»] .*/gi, "$1");
-
- // If the resulting title is too short (3 words or fewer), remove
- // the first part instead:
- if (wordCount(curTitle) < 3)
- curTitle = origTitle.replace(/[^\|\-\\\/>»]*[\|\-\\\/>»](.*)/gi, "$1");
- } else if (curTitle.indexOf(": ") !== -1) {
- // Check if we have an heading containing this exact string, so we
- // could assume it's the full title.
- var headings = this._concatNodeLists(
- doc.getElementsByTagName("h1"),
- doc.getElementsByTagName("h2")
- );
- var trimmedTitle = curTitle.trim();
- var match = this._someNode(headings, function(heading) {
- return heading.textContent.trim() === trimmedTitle;
- });
-
- // If we don't, let's extract the title out of the original title string.
- if (!match) {
- curTitle = origTitle.substring(origTitle.lastIndexOf(":") + 1);
-
- // If the title is now too short, try the first colon instead:
- if (wordCount(curTitle) < 3) {
- curTitle = origTitle.substring(origTitle.indexOf(":") + 1);
- // But if we have too many words before the colon there's something weird
- // with the titles and the H tags so let's just use the original title instead
- } else if (wordCount(origTitle.substr(0, origTitle.indexOf(":"))) > 5) {
- curTitle = origTitle;
- }
- }
- } else if (curTitle.length > 150 || curTitle.length < 15) {
- var hOnes = doc.getElementsByTagName("h1");
-
- if (hOnes.length === 1)
- curTitle = this._getInnerText(hOnes[0]);
- }
-
- curTitle = curTitle.trim().replace(this.REGEXPS.normalize, " ");
- // If we now have 4 words or fewer as our title, and either no
- // 'hierarchical' separators (\, /, > or ») were found in the original
- // title or we decreased the number of words by more than 1 word, use
- // the original title.
- var curTitleWordCount = wordCount(curTitle);
- if (curTitleWordCount <= 4 &&
- (!titleHadHierarchicalSeparators ||
- curTitleWordCount != wordCount(origTitle.replace(/[\|\-\\\/>»]+/g, "")) - 1)) {
- curTitle = origTitle;
- }
-
- return curTitle;
- },
-
- /**
- * Prepare the HTML document for readability to scrape it.
- * This includes things like stripping javascript, CSS, and handling terrible markup.
- *
- * @return void
- **/
- _prepDocument: function() {
- var doc = this._doc;
-
- // Remove all style tags in head
- this._removeNodes(this._getAllNodesWithTag(doc, ["style"]));
-
- if (doc.body) {
- this._replaceBrs(doc.body);
- }
-
- this._replaceNodeTags(this._getAllNodesWithTag(doc, ["font"]), "SPAN");
- },
-
- /**
- * Finds the next node, starting from the given node, and ignoring
- * whitespace in between. If the given node is an element, the same node is
- * returned.
- */
- _nextNode: function (node) {
- var next = node;
- while (next
- && (next.nodeType != this.ELEMENT_NODE)
- && this.REGEXPS.whitespace.test(next.textContent)) {
- next = next.nextSibling;
- }
- return next;
- },
-
- /**
- * Replaces 2 or more successive <br> elements with a single <p>.
- * Whitespace between <br> elements are ignored. For example:
- * <div>foo<br>bar<br> <br><br>abc</div>
- * will become:
- * <div>foo<br>bar<p>abc</p></div>
- */
- _replaceBrs: function (elem) {
- this._forEachNode(this._getAllNodesWithTag(elem, ["br"]), function(br) {
- var next = br.nextSibling;
-
- // Whether 2 or more <br> elements have been found and replaced with a
- // <p> block.
- var replaced = false;
-
- // If we find a <br> chain, remove the <br>s until we hit another node
- // or non-whitespace. This leaves behind the first <br> in the chain
- // (which will be replaced with a <p> later).
- while ((next = this._nextNode(next)) && (next.tagName == "BR")) {
- replaced = true;
- var brSibling = next.nextSibling;
- next.parentNode.removeChild(next);
- next = brSibling;
- }
-
- // If we removed a <br> chain, replace the remaining <br> with a <p>. Add
- // all sibling nodes as children of the <p> until we hit another <br>
- // chain.
- if (replaced) {
- var p = this._doc.createElement("p");
- br.parentNode.replaceChild(p, br);
-
- next = p.nextSibling;
- while (next) {
- // If we've hit another <br><br>, we're done adding children to this <p>.
- if (next.tagName == "BR") {
- var nextElem = this._nextNode(next.nextSibling);
- if (nextElem && nextElem.tagName == "BR")
- break;
- }
-
- if (!this._isPhrasingContent(next))
- break;
-
- // Otherwise, make this node a child of the new <p>.
- var sibling = next.nextSibling;
- p.appendChild(next);
- next = sibling;
- }
-
- while (p.lastChild && this._isWhitespace(p.lastChild)) {
- p.removeChild(p.lastChild);
- }
-
- if (p.parentNode.tagName === "P")
- this._setNodeTag(p.parentNode, "DIV");
- }
- });
- },
-
- _setNodeTag: function (node, tag) {
- this.log("_setNodeTag", node, tag);
- if (this._docJSDOMParser) {
- node.localName = tag.toLowerCase();
- node.tagName = tag.toUpperCase();
- return node;
- }
-
- var replacement = node.ownerDocument.createElement(tag);
- while (node.firstChild) {
- replacement.appendChild(node.firstChild);
- }
- node.parentNode.replaceChild(replacement, node);
- if (node.readability)
- replacement.readability = node.readability;
-
- for (var i = 0; i < node.attributes.length; i++) {
- try {
- replacement.setAttribute(node.attributes[i].name, node.attributes[i].value);
- } catch (ex) {
- /* it's possible for setAttribute() to throw if the attribute name
- * isn't a valid XML Name. Such attributes can however be parsed from
- * source in HTML docs, see https://github.com/whatwg/html/issues/4275,
- * so we can hit them here and then throw. We don't care about such
- * attributes so we ignore them.
- */
- }
- }
- return replacement;
- },
-
- /**
- * Prepare the article node for display. Clean out any inline styles,
- * iframes, forms, strip extraneous <p> tags, etc.
- *
- * @param Element
- * @return void
- **/
- _prepArticle: function(articleContent) {
- this._cleanStyles(articleContent);
-
- // Check for data tables before we continue, to avoid removing items in
- // those tables, which will often be isolated even though they're
- // visually linked to other content-ful elements (text, images, etc.).
- this._markDataTables(articleContent);
-
- this._fixLazyImages(articleContent);
-
- // Clean out junk from the article content
- this._cleanConditionally(articleContent, "form");
- this._cleanConditionally(articleContent, "fieldset");
- this._clean(articleContent, "object");
- this._clean(articleContent, "embed");
- this._clean(articleContent, "footer");
- this._clean(articleContent, "link");
- this._clean(articleContent, "aside");
-
- // Clean out elements with little content that have "share" in their id/class combinations from final top candidates,
- // which means we don't remove the top candidates even they have "share".
-
- var shareElementThreshold = this.DEFAULT_CHAR_THRESHOLD;
-
- this._forEachNode(articleContent.children, function (topCandidate) {
- this._cleanMatchedNodes(topCandidate, function (node, matchString) {
- return this.REGEXPS.shareElements.test(matchString) && node.textContent.length < shareElementThreshold;
- });
- });
-
- this._clean(articleContent, "iframe");
- this._clean(articleContent, "input");
- this._clean(articleContent, "textarea");
- this._clean(articleContent, "select");
- this._clean(articleContent, "button");
- this._cleanHeaders(articleContent);
-
- // Do these last as the previous stuff may have removed junk
- // that will affect these
- this._cleanConditionally(articleContent, "table");
- this._cleanConditionally(articleContent, "ul");
- this._cleanConditionally(articleContent, "div");
-
- // replace H1 with H2 as H1 should be only title that is displayed separately
- this._replaceNodeTags(this._getAllNodesWithTag(articleContent, ["h1"]), "h2");
-
- // Remove extra paragraphs
- this._removeNodes(this._getAllNodesWithTag(articleContent, ["p"]), function (paragraph) {
- var imgCount = paragraph.getElementsByTagName("img").length;
- var embedCount = paragraph.getElementsByTagName("embed").length;
- var objectCount = paragraph.getElementsByTagName("object").length;
- // At this point, nasty iframes have been removed, only remain embedded video ones.
- var iframeCount = paragraph.getElementsByTagName("iframe").length;
- var totalCount = imgCount + embedCount + objectCount + iframeCount;
-
- return totalCount === 0 && !this._getInnerText(paragraph, false);
- });
-
- this._forEachNode(this._getAllNodesWithTag(articleContent, ["br"]), function(br) {
- var next = this._nextNode(br.nextSibling);
- if (next && next.tagName == "P")
- br.parentNode.removeChild(br);
- });
-
- // Remove single-cell tables
- this._forEachNode(this._getAllNodesWithTag(articleContent, ["table"]), function(table) {
- var tbody = this._hasSingleTagInsideElement(table, "TBODY") ? table.firstElementChild : table;
- if (this._hasSingleTagInsideElement(tbody, "TR")) {
- var row = tbody.firstElementChild;
- if (this._hasSingleTagInsideElement(row, "TD")) {
- var cell = row.firstElementChild;
- cell = this._setNodeTag(cell, this._everyNode(cell.childNodes, this._isPhrasingContent) ? "P" : "DIV");
- table.parentNode.replaceChild(cell, table);
- }
- }
- });
- },
-
- /**
- * Initialize a node with the readability object. Also checks the
- * className/id for special names to add to its score.
- *
- * @param Element
- * @return void
- **/
- _initializeNode: function(node) {
- node.readability = {"contentScore": 0};
-
- switch (node.tagName) {
- case "DIV":
- node.readability.contentScore += 5;
- break;
-
- case "PRE":
- case "TD":
- case "BLOCKQUOTE":
- node.readability.contentScore += 3;
- break;
-
- case "ADDRESS":
- case "OL":
- case "UL":
- case "DL":
- case "DD":
- case "DT":
- case "LI":
- case "FORM":
- node.readability.contentScore -= 3;
- break;
-
- case "H1":
- case "H2":
- case "H3":
- case "H4":
- case "H5":
- case "H6":
- case "TH":
- node.readability.contentScore -= 5;
- break;
- }
-
- node.readability.contentScore += this._getClassWeight(node);
- },
-
- _removeAndGetNext: function(node) {
- var nextNode = this._getNextNode(node, true);
- node.parentNode.removeChild(node);
- return nextNode;
- },
-
- /**
- * Traverse the DOM from node to node, starting at the node passed in.
- * Pass true for the second parameter to indicate this node itself
- * (and its kids) are going away, and we want the next node over.
- *
- * Calling this in a loop will traverse the DOM depth-first.
- */
- _getNextNode: function(node, ignoreSelfAndKids) {
- // First check for kids if those aren't being ignored
- if (!ignoreSelfAndKids && node.firstElementChild) {
- return node.firstElementChild;
- }
- // Then for siblings...
- if (node.nextElementSibling) {
- return node.nextElementSibling;
- }
- // And finally, move up the parent chain *and* find a sibling
- // (because this is depth-first traversal, we will have already
- // seen the parent nodes themselves).
- do {
- node = node.parentNode;
- } while (node && !node.nextElementSibling);
- return node && node.nextElementSibling;
- },
-
- // compares second text to first one
- // 1 = same text, 0 = completely different text
- // works the way that it splits both texts into words and then finds words that are unique in second text
- // the result is given by the lower length of unique parts
- _textSimilarity: function(textA, textB) {
- var tokensA = textA.toLowerCase().split(this.REGEXPS.tokenize).filter(Boolean);
- var tokensB = textB.toLowerCase().split(this.REGEXPS.tokenize).filter(Boolean);
- if (!tokensA.length || !tokensB.length) {
- return 0;
- }
- var uniqTokensB = tokensB.filter(token => !tokensA.includes(token));
- var distanceB = uniqTokensB.join(" ").length / tokensB.join(" ").length;
- return 1 - distanceB;
- },
-
- _checkByline: function(node, matchString) {
- if (this._articleByline) {
- return false;
- }
-
- if (node.getAttribute !== undefined) {
- var rel = node.getAttribute("rel");
- var itemprop = node.getAttribute("itemprop");
- }
-
- if ((rel === "author" || (itemprop && itemprop.indexOf("author") !== -1) || this.REGEXPS.byline.test(matchString)) && this._isValidByline(node.textContent)) {
- this._articleByline = node.textContent.trim();
- return true;
- }
-
- return false;
- },
-
- _getNodeAncestors: function(node, maxDepth) {
- maxDepth = maxDepth || 0;
- var i = 0, ancestors = [];
- while (node.parentNode) {
- ancestors.push(node.parentNode);
- if (maxDepth && ++i === maxDepth)
- break;
- node = node.parentNode;
- }
- return ancestors;
- },
-
- /***
- * grabArticle - Using a variety of metrics (content score, classname, element types), find the content that is
- * most likely to be the stuff a user wants to read. Then return it wrapped up in a div.
- *
- * @param page a document to run upon. Needs to be a full document, complete with body.
- * @return Element
- **/
- _grabArticle: function (page) {
- this.log("**** grabArticle ****");
- var doc = this._doc;
- var isPaging = page !== null;
- page = page ? page : this._doc.body;
-
- // We can't grab an article if we don't have a page!
- if (!page) {
- this.log("No body found in document. Abort.");
- return null;
- }
-
- var pageCacheHtml = page.innerHTML;
-
- while (true) {
- this.log("Starting grabArticle loop");
- var stripUnlikelyCandidates = this._flagIsActive(this.FLAG_STRIP_UNLIKELYS);
-
- // First, node prepping. Trash nodes that look cruddy (like ones with the
- // class name "comment", etc), and turn divs into P tags where they have been
- // used inappropriately (as in, where they contain no other block level elements.)
- var elementsToScore = [];
- var node = this._doc.documentElement;
-
- let shouldRemoveTitleHeader = true;
-
- while (node) {
-
- if (node.tagName === "HTML") {
- this._articleLang = node.getAttribute("lang");
- }
-
- var matchString = node.className + " " + node.id;
-
- if (!this._isProbablyVisible(node)) {
- thi