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Build your own private, encrypted, open-source Dropbox-esque sync folder

Prerequisites:

• One or more clients running a UNIX-like OS. Examples are given for Ubuntu 12.04 LTS, although all software components are available for other platforms as well (e.g. OS X). YMMV
• A cheap Ubuntu 12.04 VPS with storage. I recommend Backupsy, they offer 250GB storage for $5/month. Ask Google for coupon codes.

Software components used:

• Unison for file synchronization
• EncFS for folder encryption

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(defn queue
  [& c]
  (into
    (clojure.lang.PersistentQueue/EMPTY)
    c))

(defn k-combos 
  [k r]
  (if (zero? k) nil
    (letfn

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DataURI.py

Data URI manipulation made easy.

This isn't very robust, and will reject a number of valid data URIs. However, it meets the most useful case: a mimetype, a charset, and the base64 flag.

Parsing

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to get a list of free programming books, here's the list from a Zed Shaw & Co. programming-related, profanity-filled website.

<div style="text-align: left">
    <table>
        <tbody><tr><th colspan="3">Programming Languages</th>
        </tr><tr>
            <td><a href="#Assembly Language">Assembly Language</a></td>
            <td><a href="#Bash">Bash</a></td>
            <td><a href="#C / C++">C / C++</a></td>
        </tr>

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    if ($type == MAGIC_URL_EMAIL)
    {
        $html    = "$whitespace<!-- $tag --><a$class href='$url'>$text</a><!-- $tag -->$append";    
    }
    else 
    {
        $html    = "$whitespace<!-- $tag --><a$class href='$url' onclick='window.open(this.href);return false;'>$text</a><!-- $tag -->$append";
    }    

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    if ($type == MAGIC_URL_EMAIL)
    {
        $html    = "$whitespace<!-- $tag --><a$class href='$url'>$text</a><!-- $tag -->$append";    
    }
    else 
    {
        $html    = "$whitespace<!-- $tag --><a$class href='$url' onclick='window.open(this.href);return false;'>$text</a><!-- $tag -->$append";
    } 

    return $html;

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This is the gist used for the Adobe Summit labs

ex1 https://www.youtube.com/watch?v=mIlI2T_GXM8&feature=youtu.be
ex2 https://www.youtube.com/watch?v=TtP71cZ3zBo&feature=youtu.be
ex3 https://www.youtube.com/watch?v=Cemp0J34LTM&feature=youtu.be

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package net.abhinavsarkar.util;

import java.util.Iterator;
import java.util.concurrent.BrokenBarrierException;
import java.util.concurrent.CyclicBarrier;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.TimeUnit;

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1. Go to http://host:port/system/console/bundles and install these two bundles
   • http://apache.mirrors.lucidnetworks.net//felix/org.apache.felix.webconsole.plugins.scriptconsole-1.0.2.jar
   • http://repo1.maven.org/maven2/org/codehaus/groovy/groovy-all/2.4.9/groovy-all-2.4.9.jar
2. Go to http://host/system/console/configMgr/org.apache.sling.jcr.base.internal.LoginAdminWhitelist
3. Add org.apache.felix.webconsole.plugins.scriptconsole to "Whitelist regexp" and save
4. After the two bundles fully install then go to http://host:port/system/console/sc
5. Select "Groovy" as the language
6. Copy/Paste the contents of countNodes-*.groovy script below which matches your oak version to the script console
7. Click "Execute"
8. Don't close the browser, the output is displayed in the console UI

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To run this script:

1. Download the oak-run version matching the version of Oak installed in AEM: http://repo1.maven.org/maven2/org/apache/jackrabbit/oak-run
2. Download the attached adminUtils.groovy script
3. Upload the adminUtils.groovy script and the oak-run jar to your AEM server
4. Run the command to start the oak-run console. For example:

   java -Xmx2048m -jar /tmp/oak-run-1.6.1.jar console /app/aem/aem63/crx-quickstart/repository/segmentstore --read-write
   

5. Once the oak-run console is open then load the groovy script using this command: