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<title>How to reboot your bebox using the <span class="caps">CLI</span> - Alexis Métaireau</title>
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<li><a class="main" href="/">Alexis Métaireau</a></li>
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href="https://blog.notmyidea.org/journal/index.html">Journal</a></li>
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href="https://blog.notmyidea.org/lectures/">Lectures</a></li>
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<h1 class="post-title">How to reboot your bebox using the <span class="caps">CLI</span></h1>
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<time datetime="2010-10-21T00:00:00+02:00">21 octobre 2010</time>
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<article>
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<p>I’ve an internet connection which, for some obscure reasons, tend to be
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very slow from time to time. After rebooting the box (yes, that’s a hard
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solution), all the things seems to go fine again.</p>
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<h2 id="edit-using-grep"><span class="caps">EDIT</span> : Using grep</h2>
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<p>After a bit of reflexion, that’s also really easy to do using directly
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the command line tools curl, grep and tail (but really harder to read).</p>
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<div class="highlight"><pre><span></span><code>curl<span class="w"> </span>-X<span class="w"> </span>POST<span class="w"> </span>-u<span class="w"> </span>joel:joel<span class="w"> </span>http://bebox.config/cgi/b/info/restart/<span class="se">\?</span>be<span class="se">\=</span><span class="m">0</span><span class="se">\&</span>l0<span class="se">\=</span><span class="m">1</span><span class="se">\&</span>l1<span class="se">\=</span><span class="m">0</span><span class="se">\&</span>tid<span class="se">\=</span>RESTART<span class="w"> </span>-d<span class="w"> </span><span class="s2">"0=17&2=`curl -u joel:joel http://bebox.config/cgi/b/info/restart/\?be\=0\&l0\=1\&l1\=0\&tid\=RESTART | grep -o "</span><span class="nv">name</span><span class="o">=</span><span class="s1">'2'</span><span class="w"> </span><span class="nv">value</span><span class="o">=</span><span class="err">'</span><span class="o">[</span><span class="m">0</span>-9<span class="o">]</span><span class="se">\+</span><span class="s2">" | grep -o "</span><span class="o">[</span><span class="m">0</span>-9<span class="o">]</span><span class="se">\+</span><span class="s2">" | tail -n 1`&1"</span>
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</code></pre></div>
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<h2 id="the-python-version">The Python version</h2>
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<p>Well, that’s not the optimal solution, that’s a bit “gruik”, but it works.</p>
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<div class="highlight"><pre><span></span><code><span class="kn">import</span> <span class="nn">urllib2</span>
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<span class="kn">import</span> <span class="nn">urlparse</span>
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<span class="kn">import</span> <span class="nn">re</span>
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<span class="kn">import</span> <span class="nn">argparse</span>
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<span class="n">REBOOT_URL</span> <span class="o">=</span> <span class="s1">'/b/info/restart/?be=0&l0=1&l1=0&tid=RESTART'</span>
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<span class="n">BOX_URL</span> <span class="o">=</span> <span class="s1">'http://bebox.config/cgi'</span>
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<span class="k">def</span> <span class="nf">open_url</span><span class="p">(</span><span class="n">url</span><span class="p">,</span> <span class="n">username</span><span class="p">,</span> <span class="n">password</span><span class="p">):</span>
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<span class="n">passman</span> <span class="o">=</span> <span class="n">urllib2</span><span class="o">.</span><span class="n">HTTPPasswordMgrWithDefaultRealm</span><span class="p">()</span>
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<span class="n">passman</span><span class="o">.</span><span class="n">add_password</span><span class="p">(</span><span class="kc">None</span><span class="p">,</span> <span class="n">url</span><span class="p">,</span> <span class="n">username</span><span class="p">,</span> <span class="n">password</span><span class="p">)</span>
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<span class="n">authhandler</span> <span class="o">=</span> <span class="n">urllib2</span><span class="o">.</span><span class="n">HTTPBasicAuthHandler</span><span class="p">(</span><span class="n">passman</span><span class="p">)</span>
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<span class="n">opener</span> <span class="o">=</span> <span class="n">urllib2</span><span class="o">.</span><span class="n">build_opener</span><span class="p">(</span><span class="n">authhandler</span><span class="p">)</span>
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<span class="n">urllib2</span><span class="o">.</span><span class="n">install_opener</span><span class="p">(</span><span class="n">opener</span><span class="p">)</span>
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<span class="k">return</span> <span class="n">urllib2</span><span class="o">.</span><span class="n">urlopen</span><span class="p">(</span><span class="n">url</span><span class="p">)</span><span class="o">.</span><span class="n">read</span><span class="p">()</span>
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<span class="k">def</span> <span class="nf">reboot</span><span class="p">(</span><span class="n">url</span><span class="p">,</span> <span class="n">username</span><span class="p">,</span> <span class="n">password</span><span class="p">):</span>
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<span class="n">data</span> <span class="o">=</span> <span class="n">open_url</span><span class="p">(</span><span class="n">url</span><span class="p">,</span> <span class="n">username</span><span class="p">,</span> <span class="n">password</span><span class="p">)</span>
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<span class="n">token</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">findall</span><span class="p">(</span><span class="s2">"name\=</span><span class="se">\\</span><span class="s2">'2</span><span class="se">\\</span><span class="s2">' value=</span><span class="se">\\</span><span class="s2">'([0-9]+)</span><span class="se">\\</span><span class="s2">'"</span><span class="p">,</span> <span class="n">data</span><span class="p">)[</span><span class="mi">1</span><span class="p">]</span>
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<span class="n">urllib2</span><span class="o">.</span><span class="n">urlopen</span><span class="p">(</span><span class="n">urllib2</span><span class="o">.</span><span class="n">Request</span><span class="p">(</span><span class="n">url</span><span class="o">=</span><span class="n">url</span><span class="p">,</span> <span class="n">data</span><span class="o">=</span><span class="s1">'0=17&2=</span><span class="si">%s</span><span class="s1">&1'</span> <span class="o">%</span> <span class="n">token</span><span class="p">))</span>
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<span class="k">if</span> <span class="vm">__file__</span> <span class="o">==</span> <span class="s1">'__main__'</span><span class="p">:</span>
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<span class="n">parser</span> <span class="o">=</span> <span class="n">argparse</span><span class="o">.</span><span class="n">ArgumentParser</span><span class="p">(</span><span class="n">description</span><span class="o">=</span><span class="s2">"""Reboot your bebox !"""</span><span class="p">)</span>
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<span class="n">parser</span><span class="o">.</span><span class="n">add_argument</span><span class="p">(</span><span class="n">dest</span><span class="o">=</span><span class="s1">'user'</span><span class="p">,</span> <span class="n">help</span><span class="o">=</span><span class="s1">'username'</span><span class="p">)</span>
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<span class="n">parser</span><span class="o">.</span><span class="n">add_argument</span><span class="p">(</span><span class="n">dest</span><span class="o">=</span><span class="s1">'password'</span><span class="p">,</span> <span class="n">help</span><span class="o">=</span><span class="s1">'password'</span><span class="p">)</span>
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<span class="n">parser</span><span class="o">.</span><span class="n">add_argument</span><span class="p">(</span><span class="n">boxurl</span><span class="o">=</span><span class="s1">'boxurl'</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="n">BOX_URL</span><span class="p">,</span> <span class="n">help</span><span class="o">=</span><span class="s1">'Base box url. Default is </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="n">BOX_URL</span><span class="p">)</span>
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<span class="n">args</span> <span class="o">=</span> <span class="n">parser</span><span class="o">.</span><span class="n">parse_args</span><span class="p">()</span>
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<span class="n">url</span> <span class="o">=</span> <span class="n">urlparse</span><span class="o">.</span><span class="n">urljoin</span><span class="p">(</span><span class="n">args</span><span class="o">.</span><span class="n">boxurl</span><span class="p">,</span> <span class="n">REBOOT_URL</span><span class="p">)</span>
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<span class="n">reboot</span><span class="p">(</span><span class="n">url</span><span class="p">,</span> <span class="n">args</span><span class="o">.</span><span class="n">username</span><span class="p">,</span> <span class="n">args</span><span class="o">.</span><span class="n">password</span><span class="p">)</span>
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</code></pre></div>
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