Scrape/Crawl article from any site automatically. Make any web page readable, no matter Chinese or English.
快速抓取网页文章标题和内容，适合node.js爬虫使用，服务于ElasticSearch。
Pictures don't lie:
Notes
It supports the definitions such as:
<br /> or not, true by default.[minTextLength] characters, don't even count it, 25 by default.false by default.callback(error, article, options, response), arguments are:
Error object when exception has been caught.article.title, article.content and article.html.response.headers, response.redirects, response.cookies and response.statusCode.### Examples ```javascript var read = require('read-art'); // read from google: read('http://google.com', function(err, art, options, resp){ if(err){ throw err; } var title = art.title, // title of article content = art.content, // content of article html = art.html; // whole original innerHTMLHead over to test or examples directory for a complete example.
console.log('[STATUS CODE]', resp && resp.statusCode);
}); // or: read({ uri: 'http://google.com', charset: 'utf8' }, function(err, art, options, resp){
}); // what about html? read('node-art
hello, read-art!
}); // of course could be read({ uri: 'node-art
hello, read-art!
});
**CAUTION:** Title must be wrapped in a `<title>` tag and content must be wrapped in a `<body>` tag.
**With High Availability: [spider2](https://github.com/Tjatse/spider2)**
<a name="score_rule" />
## Score Rule
In some situations, we need to customize score rules to grab the correct content of article, such as BBS and QA forums.
There are two effective ways to do this:
- **minTextLength**
It's useful to get rid of useless elements (`P` / `DIV`), e.g. `minTextLength: 100` will dump all the blocks that `node.text().length` is less than `100`.
- **scoreRule**
You can customize the score rules manually, e.g.:
```javascript:
scoreRule: function(node){
if (node.hasClass('w740')) {
return 100;
}
}
The elements which have the w740 className will get 100 bonus points, that will make the node to be the topCandidate, which means it's enough to make the text of DIV/P.w740 to be the content of current article.
});
<a name="cus_sets" />
## Customize Settings
We're using different regexps to iterates over elements (cheerio objects), and removing undesirable nodes.
```javascript
read.use(function(){
//[usage]
});
The [usage] could be one of following:
this.reset()
Reset the settings to default.
this.skipTags([tags], [override])
Remove useless elements by tagName, e.g. this.skipTags('b,span'), if [override] is set to true, skiptags will be "b,span", otherwise it will be appended to the origin, i.e. :
aside,footer,label,nav,noscript,script,link,meta,style,select,textarea,iframe,b,span
this.regexps.positive([re], [override])
If positive regexp test id + className of node success, it will be took as a candidate. [re] is a regexp, e.g. /dv101|dv102/ will match the element likes <div class="dv101">... or <div id="dv102">..., if [override] is set to true, positive will be /dv101|dv102/i, otherwise it will be appended to the origin, i.e. :
/article|blog|body|content|entry|main|news|pag(?:e|ination)|post|story|text|dv101|dv102/i
this.regexps.negative([re], [override])
If negative regexp test id + className of node success, it will not be took as a candidate. [re] is a regexp, e.g. /dv101|dv102/ will match the element likes <div class="dv101">... or <div id="dv102">..., if [override] is set to true, negative will be /dv101|dv102/i, otherwise it will be appended to the origin, i.e. :
/com(?:bx|ment|-)|contact|comment|captcha|foot(?:er|note)?|link|masthead|media|meta|outbrain|promo|related|scroll|shoutbox|sidebar|sponsor|util|shopping|tags|tool|widget|tip|dialog|copyright|bottom|dv101|dv102/i
this.regexps.unlikely([re], [override])
If unlikely regexp test id + className of node success, it probably will not be took as a candidate. [re] is a regexp, e.g. /dv101|dv102/ will match the element likes <div class="dv101">... or <div id="dv102">..., if [override] is set to true, unlikely will be /dv101|dv102/i, otherwise it will be appended to the origin, i.e. :
/agegate|auth?or|bookmark|cat|com(?:bx|ment|munity)|date|disqus|extra|foot|header|ignore|link|menu|nav|pag(?:er|ination)|popup|related|remark|rss|share|shoutbox|sidebar|similar|social|sponsor|teaserlist|time|tweet|twitter|\bad[\s_-]?\b|dv101|dv102/i
this.regexps.maybe([re], [override])
If maybe regexp test id + className of node success, it probably will be took as a candidate. [re] is a regexp, e.g. /dv101|dv102/ will match the element likes <div class="dv101">... or <div id="dv102">..., if [override] is set to true, maybe will be /dv101|dv102/i, otherwise it will be appended to the origin, i.e. :
/and|article|body|column|main|column|dv101|dv102/i
this.regexps.div2p([re], [override])
If div2p regexp test id + className of node success, all divs that don't have children block level elements will be turned into p's. [re] is a regexp, e.g. /<(span|label)/ will match the element likes <span>... or <label>..., if [override] is set to true, div2p will be /<(span|label)/i, otherwise it will be appended to the origin, i.e. :
/<(a|blockquote|dl|div|img|ol|p|pre|table|ul|span|label)/i
Notes Videos could be scraped now, the domains currently are supported: youtube|vimeo|youku|tudou|56|letv|iqiyi|sohu|sina|163.
### json Returns the restful result, e.g.: ```javascript read('http://example.com', { output: 'json' }, function(err, art){ // art.content will be formatted as JSON }); // or read('http://example.com', { output: { type: 'json', stripSpaces: true, break: true } }, function(err, art){ // art.content will be formatted as Array }); ```The art.content will be an Array such as:
[
{ "type": "img", "value": "http://example.com/jpg/site1/20140519/00188b1996f214e3a25417.jpg" },
{ "type": "text", "value": "TEXT goes here..." }
]
Util now there are only two types - img and text, the src of img element is absolute even if the original is a relative one.
Notes The video sources of the sites are quite different, it's hard to fit all in a common way, I haven't find a good way to solve that, PRs are in demand.
## Notes / Gotchas **Pass the charset manually to refrain from the crazy messy codes** ```javascript read('http://game.163.com/14/0506/10/9RI8M9AO00314SDA.html', { charset: 'gbk' }, function(err, art){ // ... }); ```Generate agent to simulate browsers
read('http://example.com', {
agent: true // true as default
}, function(err, art){
// ...
});
Use proxy to avoid being blocked
read('http://example.com', {
proxy: {
host: 'http://myproxy.com/',
port: 8081,
proxyAuth: 'user:password'
}
}, function(err, art){
// ...
});
npm test
luin/node-readability is an old Readability that be transformed from Arc90, easy to use, but the problem is - TOO SLOW. It was based on jsdom, so, the HTML must be written in strict mode, which means you can not make any mistake, e.g.:
<P>Paragraphs</p>
<p>My book name is <read-art></p>
<div><p>Hey, dude!</div>
All above will cause hiberarchy errors, more seriously, jsdom is a memory killer.
I've contributed on this for a while, but it's hard to communicate with Vadim(we are in a different timezone), and we have very different ideas. So I decided to write it on my own.
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.
FAQs
Scrape/Crawl article from any site automatically. Make any web page readable, no matter Chinese or English.
The npm package read-art receives a total of 55 weekly downloads. As such, read-art popularity was classified as not popular.
We found that read-art demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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