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Introduction
* The js/ folder contains:
- index.php - a servlet described below
- piwik.js - the uncompressed piwik.js source for you to study or reference
- README - this documentation file
Why Use "js/index.php"?
* js/index.php (or implicitly as "js/") can be used to serve up the minified
piwik.js
- it supports conditional-GET and Last-Modified, so piwik.js can be cached
by the browser
- it supports deflate/gzip compression if your web server (e.g., Apache
without mod_deflate or mod_gzip), shrinking the data transfer to 3.5K
* js/index.php (or implicitly as "js/") can also act as a proxy to piwik.php
* If you are concerned about the impact of browser-based privacy filters which
attempt to block tracking, you can change your tracking code to use "js/"
instead of "piwik.js" and "piwik.php", respectively.
Deployment
* piwik.js is minified using YUICompressor 2.4.2.
To install YUICompressor run:
$ cd /path/to/piwik/js/
$ wget http://www.julienlecomte.net/yuicompressor/yuicompressor-2.4.2.zip
$ unzip yuicompressor-2.4.2.zip
To compress the code containing the evil "eval", either apply the patch from
http://yuilibrary.com/projects/yuicompressor/ticket/2343811,
or run:
$ cd /path/to/piwik/js/
$ sed 's/eval/replacedEvilString/' <piwik.js | java -jar yuicompressor-2.4.2/build/yuicompressor-2.4.2.jar --type js --line-break 1000 | sed 's/replacedEvilString/eval/' > piwik-min.js && cp piwik-min.js ../piwik.js
This will generate the minify /path/to/piwik/js/piwik-min.js and copy it to
/path/to/piwik/piwik.js
* In a production environment, the tests/javascript folder is not used and can
be removed (if present).
Note: if the file "js/tests/enable_sqlite" exists, additional unit tests
(requires the sqlite extension) are enabled.
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