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Commit 133310d8 133310d814d79db08c3982ee4af31d0a71813b8c by Nicolas Perriault
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Initial import.

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Copyright (c) 2011 Nicolas Perriault
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is furnished
to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
# Casper.js
Casper is a navigation utility for [PhantomJS](http://www.phantomjs.org/).
More documentation to come soon, I swear. If you just can't wait, here's a sample script:
phantom.injectJs('casper.js');
// User defined functions
function q() {
document.querySelector('input[name="q"]').setAttribute('value', '%term%');
document.querySelector('form[name="f"]').submit();
}
function getLinks() {
return Array.prototype.map.call(document.querySelectorAll('h3.r a'), function(e) {
return e.getAttribute('href');
});
}
// Casper suite
var links = [];
var casper = new phantom.Casper()
.start('http://google.fr/')
.thenEvaluate(q, {
term: 'casper',
})
.then(function(self) {
links = self.evaluate(getLinks);
})
.thenEvaluate(q, {
term: 'homer',
})
.then(function(self) {
links = links.concat(self.evaluate(getLinks));
})
.run(function(self) {
self.echo(JSON.stringify({
result: self.result,
links: links
}, null, ' '));
self.exit();
})
;
Run it:
$ phantomjs example.js
{
"result": {
"log": [
{
"level": "info",
"space": "phantom",
"message": "Starting…",
"date": "Mon Sep 05 2011 16:10:56 GMT+0200 (CEST)"
},
{
"level": "info",
"space": "phantom",
"message": "Running suite: 4 steps",
"date": "Mon Sep 05 2011 16:10:56 GMT+0200 (CEST)"
},
{
"level": "info",
"space": "phantom",
"message": "Step 1/4: http://www.google.fr/ (HTTP 301)",
"date": "Mon Sep 05 2011 16:10:57 GMT+0200 (CEST)"
},
{
"level": "info",
"space": "phantom",
"message": "Step 1/4: done in 1259ms.",
"date": "Mon Sep 05 2011 16:10:57 GMT+0200 (CEST)"
},
{
"level": "info",
"space": "phantom",
"message": "Step 2/4: http://www.google.fr/search?sclient=psy&hl=fr&site=&source=hp&q=casper&pbx=1&oq=&aq=&aqi=&aql=&gs_sm=&gs_upl= (HTTP 301)",
"date": "Mon Sep 05 2011 16:10:58 GMT+0200 (CEST)"
},
{
"level": "info",
"space": "phantom",
"message": "Step 2/4: done in 2145ms.",
"date": "Mon Sep 05 2011 16:10:58 GMT+0200 (CEST)"
},
{
"level": "info",
"space": "phantom",
"message": "Step 3/4: http://www.google.fr/search?sclient=psy&hl=fr&site=&source=hp&q=casper&pbx=1&oq=&aq=&aqi=&aql=&gs_sm=&gs_upl= (HTTP 301)",
"date": "Mon Sep 05 2011 16:10:58 GMT+0200 (CEST)"
},
{
"level": "info",
"space": "phantom",
"message": "Step 3/4: done in 2390ms.",
"date": "Mon Sep 05 2011 16:10:58 GMT+0200 (CEST)"
},
{
"level": "info",
"space": "phantom",
"message": "Step 4/4: http://www.google.fr/search?sclient=psy&hl=fr&source=hp&q=homer&pbx=1&oq=&aq=&aqi=&aql=&gs_sm=&gs_upl= (HTTP 301)",
"date": "Mon Sep 05 2011 16:10:59 GMT+0200 (CEST)"
},
{
"level": "info",
"space": "phantom",
"message": "Step 4/4: done in 3077ms.",
"date": "Mon Sep 05 2011 16:10:59 GMT+0200 (CEST)"
},
{
"level": "info",
"space": "phantom",
"message": "Done 4 steps in 3077ms.",
"date": "Mon Sep 05 2011 16:10:59 GMT+0200 (CEST)"
}
],
"status": "success",
"time": 3077
},
"links": [
"http://fr.wikipedia.org/wiki/Casper_le_gentil_fant%C3%B4me",
"http://fr.wikipedia.org/wiki/Casper",
"http://casperflights.com/",
"http://www.allocine.fr/film/fichefilm_gen_cfilm=13018.html",
"/search?q=casper&hl=fr&prmd=ivns&tbm=isch&tbo=u&source=univ&sa=X&ei=cdhkTurpFa364QTB5uGeCg&ved=0CFkQsAQ",
"http://www.youtube.com/watch?v=Kuvo0QMiNEE",
"http://www.youtube.com/watch?v=W7cW5YlHaeQ",
"http://www.imdb.com/title/tt0112642/",
"http://blog.caspie.net/",
"http://www.casperwy.gov/",
"http://www.lequipe.fr/Cyclisme/CyclismeFicheCoureur147.html",
"http://homer-simpson-tv.blog4ever.com/",
"http://fr.wikipedia.org/wiki/Homer_Simpson",
"http://en.wikipedia.org/wiki/Homer",
"/search?q=homer&hl=fr&prmd=ivnsb&tbm=isch&tbo=u&source=univ&sa=X&ei=cthkTr73Hefh4QSUmt3UCg&ved=0CEQQsAQ",
"http://www.youtube.com/watch?v=Ajd08hgerRo",
"http://www.koreus.com/video/homer-simpson-photo-39-ans.html",
"http://www.nrel.gov/homer/",
"http://www.luds.net/homer.php",
"http://www.thesimpsons.com/bios/bios_family_homer.htm",
"http://www.homeralaska.org/",
"http://homeralaska.com/"
]
}
## Now what
Feel free to play with the code and report an issue on github. I'm also reachable [on twitter](https://twitter.com/n1k0).
This diff is collapsed. Click to expand it.
phantom.injectJs('casper.js');
function q() {
document.querySelector('input[name="q"]').setAttribute('value', '%term%');
document.querySelector('form[name="f"]').submit();
}
function getLinks() {
return Array.prototype.map.call(document.querySelectorAll('h3.r a'), function(e) {
return e.getAttribute('href');
});
}
var links = [];
var casper = new phantom.Casper({
logLevel: "info",
verbose: true
})
.start('http://google.fr/')
.thenEvaluate(q, {
term: 'casper',
})
.then(function(self) {
links = self.evaluate(getLinks);
})
.thenEvaluate(q, {
term: 'homer',
})
.then(function(self) {
links = links.concat(self.evaluate(getLinks));
})
.run(function(self) {
self.echo(JSON.stringify({
result: self.result,
links: links
}, null, ' '));
self.exit();
})
;