elog2labfolder/_build/html/installation_cups.html
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Mon, 04 Jun 2018 16:38:36 +0200
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  <div class="section" id="printing-via-cups-and-attaching-files-to-labfolder-logbooks">
<h1>Printing via CUPS and attaching files to labfolder logbooks<a class="headerlink" href="#printing-via-cups-and-attaching-files-to-labfolder-logbooks" title="Permalink to this headline">¶</a></h1>
<p>Follow this guide to set up CUPS virtual printers to be able to print webpages and pictures/files (PDF, PNG, JPG, PS) to one of labfolder’s logbooks, thus, creating a new entry with an attachment. If you are an admin of the labfolder VM read the section <a class="reference internal" href="#section-cups-admin"><span class="std std-ref">Set up CUPS as labfolder admin</span></a>. Users of labfolder read the section <a class="reference internal" href="#section-cups-user"><span class="std std-ref">Printing to labfolder projects</span></a>.</p>
<div class="section" id="set-up-cups-as-labfolder-admin">
<span id="section-cups-admin"></span><h2>Set up CUPS as labfolder admin<a class="headerlink" href="#set-up-cups-as-labfolder-admin" title="Permalink to this headline">¶</a></h2>
<p>First, you need to install CUPS on the virtual machine that runs labfolder:</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">sudo</span> <span class="n">apt</span><span class="o">-</span><span class="n">get</span> <span class="n">install</span> <span class="n">cups</span> <span class="n">cups</span><span class="o">-</span><span class="n">client</span> <span class="n">cups</span><span class="o">-</span><span class="n">bsd</span>
</pre></div>
</div>
<p>Next, configure <code class="docutils literal"><span class="pre">/etc/cups/cupsd.conf</span></code>:</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="c1"># Sample configuration file for the CUPS scheduler.  See &quot;man cupsd.conf&quot; for a</span>
<span class="c1"># complete description of this file.</span>

<span class="c1"># Log general information in error_log - change &quot;warn&quot; to &quot;debug&quot;</span>
<span class="c1"># for troubleshooting...</span>
<span class="n">LogLevel</span> <span class="n">debug</span>

<span class="c1"># Deactivate CUPS&#39; internal logrotating, as we provide a better one, especially</span>
<span class="c1"># LogLevel debug2 gets usable now</span>
<span class="n">MaxLogSize</span> <span class="mi">0</span>

<span class="c1"># Administrator user group...</span>
<span class="n">SystemGroup</span> <span class="n">lpadmin</span>
<span class="n">ServerAdmin</span> <span class="o">&lt;</span><span class="n">name</span><span class="o">&gt;</span><span class="nd">@fhi</span><span class="o">-</span><span class="n">berlin</span><span class="o">.</span><span class="n">mpg</span><span class="o">.</span><span class="n">de</span>

<span class="n">HostNameLookups</span> <span class="n">On</span>
<span class="n">ServerAlias</span> <span class="o">*</span>

<span class="c1"># Only listen for connections from the local machine.</span>
<span class="n">Listen</span> <span class="n">lftest</span><span class="o">.</span><span class="n">rz</span><span class="o">-</span><span class="n">berlin</span><span class="o">.</span><span class="n">mpg</span><span class="o">.</span><span class="n">de</span><span class="p">:</span><span class="mi">631</span>
<span class="n">Listen</span> <span class="o">/</span><span class="n">var</span><span class="o">/</span><span class="n">run</span><span class="o">/</span><span class="n">cups</span><span class="o">/</span><span class="n">cups</span><span class="o">.</span><span class="n">sock</span>

<span class="c1"># Show shared printers on the local network.</span>
<span class="n">Browsing</span> <span class="n">Off</span>
<span class="n">BrowseOrder</span> <span class="n">allow</span><span class="p">,</span><span class="n">deny</span>
<span class="n">BrowseAllow</span> <span class="nb">all</span>
<span class="n">BrowseLocalProtocols</span> <span class="n">CUPS</span> <span class="n">dnssd</span>
<span class="n">BrowseAddress</span> <span class="nd">@LOCAL</span>

<span class="c1"># Default authentication type, when authentication is required...</span>
<span class="n">DefaultAuthType</span> <span class="n">Basic</span>

<span class="c1"># Web interface setting...</span>
<span class="n">WebInterface</span> <span class="n">Yes</span>

<span class="c1"># Restrict access to the server...</span>
<span class="o">&lt;</span><span class="n">Location</span> <span class="o">/&gt;</span>
  <span class="n">Satisfy</span> <span class="n">All</span>
  <span class="n">Allow</span> <span class="n">localhost</span>
  <span class="n">Allow</span> <span class="mf">141.14</span><span class="o">.*</span>
  <span class="n">Allow</span> <span class="mf">172.16</span><span class="o">.*</span>
  <span class="n">Allow</span> <span class="mf">192.</span><span class="o">*</span>
  <span class="n">Allow</span> <span class="nb">all</span>
  <span class="c1"># Allow shared printing and remote administration...</span>
  <span class="n">Order</span> <span class="n">allow</span><span class="p">,</span><span class="n">deny</span>
  <span class="n">Allow</span> <span class="nb">all</span>
<span class="o">&lt;/</span><span class="n">Location</span><span class="o">&gt;</span>

<span class="c1"># Restrict access to the admin pages...</span>
<span class="o">&lt;</span><span class="n">Location</span> <span class="o">/</span><span class="n">admin</span><span class="o">&gt;</span>
  <span class="n">Order</span> <span class="n">deny</span><span class="p">,</span><span class="n">allow</span>
  <span class="n">Satisfy</span> <span class="n">All</span>
  <span class="n">AuthType</span> <span class="n">Basic</span>
  <span class="n">Require</span> <span class="n">user</span> <span class="nd">@SYSTEM</span>
  <span class="n">Deny</span> <span class="n">All</span>
  <span class="n">Allow</span> <span class="n">localhost</span>
  <span class="n">Allow</span> <span class="mf">141.14</span><span class="o">.*</span>
  <span class="n">Allow</span> <span class="mf">172.16</span><span class="o">.*</span>
<span class="o">&lt;/</span><span class="n">Location</span><span class="o">&gt;</span>

<span class="c1"># Restrict access to configuration files...</span>
<span class="o">&lt;</span><span class="n">Location</span> <span class="o">/</span><span class="n">admin</span><span class="o">/</span><span class="n">conf</span><span class="o">&gt;</span>
  <span class="n">Order</span> <span class="n">deny</span><span class="p">,</span><span class="n">allow</span>
  <span class="n">AuthType</span> <span class="n">Default</span>
  <span class="n">Require</span> <span class="n">user</span> <span class="nd">@SYSTEM</span>
  <span class="n">Satisfy</span> <span class="n">All</span>
  <span class="n">Require</span> <span class="n">user</span> <span class="n">root</span>
  <span class="n">Deny</span> <span class="n">All</span>
  <span class="n">Allow</span> <span class="mf">127.0</span><span class="o">.</span><span class="mf">0.1</span>
  <span class="n">Allow</span> <span class="mf">141.14</span><span class="o">.*</span>
  <span class="n">Allow</span> <span class="mf">172.16</span><span class="o">.*</span>
<span class="o">&lt;/</span><span class="n">Location</span><span class="o">&gt;</span>

<span class="c1"># Set the default printer/job policies...</span>
<span class="o">&lt;</span><span class="n">Policy</span> <span class="n">default</span><span class="o">&gt;</span>
  <span class="o">...</span> <span class="c1"># probably as in the original</span>
<span class="o">&lt;/</span><span class="n">Policy</span><span class="o">&gt;</span>
</pre></div>
</div>
<p>Change the <em>Server Admin</em>’s e-mail address and the server that shall be listened to (see the <code class="docutils literal"><span class="pre">Listen</span></code> statement). Set <code class="docutils literal"><span class="pre">FileDevice</span> <span class="pre">Yes</span></code> in <code class="docutils literal"><span class="pre">/etc/cups/cups-files.conf</span></code>. Now, create a directory where all printers will go, e.g. <code class="docutils literal"><span class="pre">/usr/local/labfolder/printers</span></code>.</p>
<p>Get the package for creating new printers from git:</p>
<div class="highlight-default"><div class="highlight"><pre><span></span>labfolder@lftest:~$ git clone https://github.molgen.mpg.de/weiher/cupsPrinters
labfolder@lftest:~$ ls
cupsPrinters  labfolder
</pre></div>
</div>
<p>The only file you need to adapt is <code class="docutils literal"><span class="pre">newPrinter.sh</span></code>. It is not a must but it is suggested to name the printers like the projects. For example, the FEL projects <em>operating</em> and <em>installation</em> could be placed at <code class="docutils literal"><span class="pre">.../printers/FEL/operating</span></code> and <code class="docutils literal"><span class="pre">.../printers/FEL/installation</span></code>. Execute the script with sudo rights:</p>
<div class="highlight-default"><div class="highlight"><pre><span></span>labfolder@lftest:~/cupsPrinters$ sudo ./newPrinter.sh
</pre></div>
</div>
<p>To prevent <code class="docutils literal"><span class="pre">DENIED</span></code> errors from apparmor install and set the following and restart the CUPS server:</p>
<div class="highlight-default"><div class="highlight"><pre><span></span>$ sudo apt-get install apparmor-utils apparmor-profiles
$ sudo aa-complain cupsd
$ sudo service cups restart
</pre></div>
</div>
<p>In case you need to debug some logfiles can be found here: <em>/var/log/syslog</em>, <em>/var/log/cups/error_log</em> and <em>/var/log/cups/acces_log</em></p>
<p>One last change is that you need to once add a user named <em>Printer Print</em> (firstname lastname) to the labfolder database. This can be done manually inside the DB by this command:</p>
<div class="highlight-default"><div class="highlight"><pre><span></span>$ mysql -u root -p
Enter password:
...
mysql&gt; use labfolder;
mysql&gt; INSERT INTO user (email, password, firstname, lastname, signupTimestamp, maxStorage) VALUES (&#39;printer@fhi-berlin.mpg.de&#39;, &#39;91a13f2aba4a35b00c35dfacadd1d75f4a5171dfa7a465fca9c40e6b007ce982&#39;, &#39;Printer&#39;, &#39;Print&#39;, &#39;2018-03-21 10:54:00&#39;, &#39;10000000&#39;);
</pre></div>
</div>
<p>Das Passwort steht für “test1234”. Der entsprechende Hash-Wert im MySQL-Kommando wurde von Florian Hauer (labfolder) erstellt.</p>
</div>
<div class="section" id="printing-to-labfolder-projects">
<span id="section-cups-user"></span><h2>Printing to labfolder projects<a class="headerlink" href="#printing-to-labfolder-projects" title="Permalink to this headline">¶</a></h2>
<p>The last thing you need to do is to set up a printer, for example, <em>operating</em> on your local machine. In Ubuntu Gnome hit Alt+F2 keys and enter <code class="docutils literal"><span class="pre">system-config-printer</span></code>. In this printer config interface add a new printer <em>operating</em> as follows:</p>
<a class="reference internal image-reference" href="_images/create_local_printer01.png"><img alt="_images/create_local_printer01.png" class="align-center" src="_images/create_local_printer01.png" style="width: 70%;" /></a>
<a class="reference internal image-reference" href="_images/create_local_printer02.png"><img alt="_images/create_local_printer02.png" class="align-center" src="_images/create_local_printer02.png" style="width: 70%;" /></a>
<a class="reference internal image-reference" href="_images/create_local_printer03.png"><img alt="_images/create_local_printer03.png" class="align-center" src="_images/create_local_printer03.png" style="width: 70%;" /></a>
<a class="reference internal image-reference" href="_images/create_local_printer04.png"><img alt="_images/create_local_printer04.png" class="align-center" src="_images/create_local_printer04.png" style="width: 70%;" /></a>
<a class="reference internal image-reference" href="_images/create_local_printer05.png"><img alt="_images/create_local_printer05.png" class="align-center" src="_images/create_local_printer05.png" style="width: 70%;" /></a>
<a class="reference internal image-reference" href="_images/create_local_printer06.png"><img alt="_images/create_local_printer06.png" class="align-center" src="_images/create_local_printer06.png" style="width: 70%;" /></a>
<a class="reference internal image-reference" href="_images/create_local_printer07.png"><img alt="_images/create_local_printer07.png" class="align-center" src="_images/create_local_printer07.png" style="width: 70%;" /></a>
<p>Now, just select this printer when printing a webpage or a picture to a labfolder project.</p>
</div>
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