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<h1>Source code for horizon.dashboards.nova.access_and_security.floating_ips.workflows</h1><div class="highlight"><pre>
<span class="c"># vim: tabstop=4 shiftwidth=4 softtabstop=4</span>
<span class="c"># Copyright 2012 Nebula, Inc.</span>
<span class="c"># Licensed under the Apache License, Version 2.0 (the "License"); you may</span>
<span class="c"># not use this file except in compliance with the License. You may obtain</span>
<span class="c"># a copy of the License at</span>
<span class="c">#</span>
<span class="c"># http://www.apache.org/licenses/LICENSE-2.0</span>
<span class="c">#</span>
<span class="c"># Unless required by applicable law or agreed to in writing, software</span>
<span class="c"># distributed under the License is distributed on an "AS IS" BASIS, WITHOUT</span>
<span class="c"># WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the</span>
<span class="c"># License for the specific language governing permissions and limitations</span>
<span class="c"># under the License.</span>
<span class="kn">from</span> <span class="nn">django.core.urlresolvers</span> <span class="kn">import</span> <span class="n">reverse</span>
<span class="kn">from</span> <span class="nn">django.utils.translation</span> <span class="kn">import</span> <span class="n">ugettext_lazy</span> <span class="k">as</span> <span class="n">_</span>
<span class="kn">from</span> <span class="nn">horizon</span> <span class="kn">import</span> <span class="n">api</span>
<span class="kn">from</span> <span class="nn">horizon</span> <span class="kn">import</span> <span class="n">exceptions</span>
<span class="kn">from</span> <span class="nn">horizon</span> <span class="kn">import</span> <span class="n">workflows</span>
<span class="kn">from</span> <span class="nn">horizon</span> <span class="kn">import</span> <span class="n">forms</span>
<span class="n">ALLOCATE_URL</span> <span class="o">=</span> <span class="s">"horizon:nova:access_and_security:floating_ips:allocate"</span>
<span class="k">class</span> <span class="nc">AssociateIPAction</span><span class="p">(</span><span class="n">workflows</span><span class="o">.</span><span class="n">Action</span><span class="p">):</span>
<div class="viewcode-block" id="AssociateIPAction"><a class="viewcode-back" href="../../../../../../sourcecode/horizon/horizon.dashboards.nova.access_and_security.floating_ips.workflows.html#horizon.dashboards.nova.access_and_security.floating_ips.workflows.AssociateIPAction">[docs]</a> <span class="n">ip_id</span> <span class="o">=</span> <span class="n">forms</span><span class="o">.</span><span class="n">DynamicTypedChoiceField</span><span class="p">(</span><span class="n">label</span><span class="o">=</span><span class="n">_</span><span class="p">(</span><span class="s">"IP Address"</span><span class="p">),</span>
<span class="nb">coerce</span><span class="o">=</span><span class="nb">int</span><span class="p">,</span>
<span class="n">empty_value</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span>
<span class="n">add_item_link</span><span class="o">=</span><span class="n">ALLOCATE_URL</span><span class="p">)</span>
<span class="n">instance_id</span> <span class="o">=</span> <span class="n">forms</span><span class="o">.</span><span class="n">ChoiceField</span><span class="p">(</span><span class="n">label</span><span class="o">=</span><span class="n">_</span><span class="p">(</span><span class="s">"Instance"</span><span class="p">))</span>
<span class="k">class</span> <span class="nc">Meta</span><span class="p">:</span>
<span class="n">name</span> <span class="o">=</span> <span class="n">_</span><span class="p">(</span><span class="s">"IP Address"</span><span class="p">)</span>
<span class="n">help_text</span> <span class="o">=</span> <span class="n">_</span><span class="p">(</span><span class="s">"Select the IP address you wish to associate with "</span>
<span class="s">"the selected instance."</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">populate_ip_id_choices</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">request</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span>
<div class="viewcode-block" id="AssociateIPAction.populate_ip_id_choices"><a class="viewcode-back" href="../../../../../../sourcecode/horizon/horizon.dashboards.nova.access_and_security.floating_ips.workflows.html#horizon.dashboards.nova.access_and_security.floating_ips.workflows.AssociateIPAction.populate_ip_id_choices">[docs]</a> <span class="k">try</span><span class="p">:</span>
<span class="n">ips</span> <span class="o">=</span> <span class="n">api</span><span class="o">.</span><span class="n">nova</span><span class="o">.</span><span class="n">tenant_floating_ip_list</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">request</span><span class="p">)</span>
<span class="k">except</span><span class="p">:</span>
<span class="n">redirect</span> <span class="o">=</span> <span class="n">reverse</span><span class="p">(</span><span class="s">'horizon:nova:access_and_security:index'</span><span class="p">)</span>
<span class="n">exceptions</span><span class="o">.</span><span class="n">handle</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">request</span><span class="p">,</span>
<span class="n">_</span><span class="p">(</span><span class="s">'Unable to retrieve floating IP addresses.'</span><span class="p">),</span>
<span class="n">redirect</span><span class="o">=</span><span class="n">redirect</span><span class="p">)</span>
<span class="n">options</span> <span class="o">=</span> <span class="nb">sorted</span><span class="p">([(</span><span class="n">ip</span><span class="o">.</span><span class="n">id</span><span class="p">,</span> <span class="n">ip</span><span class="o">.</span><span class="n">ip</span><span class="p">)</span> <span class="k">for</span> <span class="n">ip</span> <span class="ow">in</span> <span class="n">ips</span> <span class="k">if</span> <span class="ow">not</span> <span class="n">ip</span><span class="o">.</span><span class="n">instance_id</span><span class="p">])</span>
<span class="k">if</span> <span class="n">options</span><span class="p">:</span>
<span class="n">options</span><span class="o">.</span><span class="n">insert</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="p">(</span><span class="s">""</span><span class="p">,</span> <span class="n">_</span><span class="p">(</span><span class="s">"Select an IP address"</span><span class="p">)))</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">options</span> <span class="o">=</span> <span class="p">[(</span><span class="s">""</span><span class="p">,</span> <span class="n">_</span><span class="p">(</span><span class="s">"No IP addresses available"</span><span class="p">))]</span>
<span class="k">return</span> <span class="n">options</span>
<span class="k">def</span> <span class="nf">populate_instance_id_choices</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">request</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span></div>
<div class="viewcode-block" id="AssociateIPAction.populate_instance_id_choices"><a class="viewcode-back" href="../../../../../../sourcecode/horizon/horizon.dashboards.nova.access_and_security.floating_ips.workflows.html#horizon.dashboards.nova.access_and_security.floating_ips.workflows.AssociateIPAction.populate_instance_id_choices">[docs]</a> <span class="k">try</span><span class="p">:</span>
<span class="n">servers</span> <span class="o">=</span> <span class="n">api</span><span class="o">.</span><span class="n">nova</span><span class="o">.</span><span class="n">server_list</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">request</span><span class="p">)</span>
<span class="k">except</span><span class="p">:</span>
<span class="n">redirect</span> <span class="o">=</span> <span class="n">reverse</span><span class="p">(</span><span class="s">'horizon:nova:access_and_security:index'</span><span class="p">)</span>
<span class="n">exceptions</span><span class="o">.</span><span class="n">handle</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">request</span><span class="p">,</span>
<span class="n">_</span><span class="p">(</span><span class="s">'Unable to retrieve instance list.'</span><span class="p">),</span>
<span class="n">redirect</span><span class="o">=</span><span class="n">redirect</span><span class="p">)</span>
<span class="n">instances</span> <span class="o">=</span> <span class="p">[]</span>
<span class="k">for</span> <span class="n">server</span> <span class="ow">in</span> <span class="n">servers</span><span class="p">:</span>
<span class="n">server_name</span> <span class="o">=</span> <span class="s">"</span><span class="si">%s</span><span class="s"> (</span><span class="si">%s</span><span class="s">)"</span> <span class="o">%</span> <span class="p">(</span><span class="n">server</span><span class="o">.</span><span class="n">name</span><span class="p">,</span> <span class="n">server</span><span class="o">.</span><span class="n">id</span><span class="p">)</span>
<span class="n">instances</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">server</span><span class="o">.</span><span class="n">id</span><span class="p">,</span> <span class="n">server_name</span><span class="p">))</span>
<span class="c"># Sort instances for easy browsing</span>
<span class="n">instances</span> <span class="o">=</span> <span class="nb">sorted</span><span class="p">(</span><span class="n">instances</span><span class="p">,</span> <span class="n">key</span><span class="o">=</span><span class="k">lambda</span> <span class="n">x</span><span class="p">:</span> <span class="n">x</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
<span class="k">if</span> <span class="n">instances</span><span class="p">:</span>
<span class="n">instances</span><span class="o">.</span><span class="n">insert</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="p">(</span><span class="s">""</span><span class="p">,</span> <span class="n">_</span><span class="p">(</span><span class="s">"Select an instance"</span><span class="p">)))</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">instances</span> <span class="o">=</span> <span class="p">((</span><span class="s">""</span><span class="p">,</span> <span class="n">_</span><span class="p">(</span><span class="s">"No instances available"</span><span class="p">)),)</span>
<span class="k">return</span> <span class="n">instances</span>
<span class="k">class</span> <span class="nc">AssociateIP</span><span class="p">(</span><span class="n">workflows</span><span class="o">.</span><span class="n">Step</span><span class="p">):</span></div></div>
<div class="viewcode-block" id="AssociateIP"><a class="viewcode-back" href="../../../../../../sourcecode/horizon/horizon.dashboards.nova.access_and_security.floating_ips.workflows.html#horizon.dashboards.nova.access_and_security.floating_ips.workflows.AssociateIP">[docs]</a> <span class="n">action_class</span> <span class="o">=</span> <span class="n">AssociateIPAction</span>
<span class="n">contributes</span> <span class="o">=</span> <span class="p">(</span><span class="s">"ip_id"</span><span class="p">,</span> <span class="s">"instance_id"</span><span class="p">,</span> <span class="s">"ip_address"</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">contribute</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">data</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span>
<div class="viewcode-block" id="AssociateIP.contribute"><a class="viewcode-back" href="../../../../../../sourcecode/horizon/horizon.dashboards.nova.access_and_security.floating_ips.workflows.html#horizon.dashboards.nova.access_and_security.floating_ips.workflows.AssociateIP.contribute">[docs]</a> <span class="n">context</span> <span class="o">=</span> <span class="nb">super</span><span class="p">(</span><span class="n">AssociateIP</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">contribute</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="n">context</span><span class="p">)</span>
<span class="n">ip_id</span> <span class="o">=</span> <span class="n">data</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">'ip_id'</span><span class="p">,</span> <span class="bp">None</span><span class="p">)</span>
<span class="k">if</span> <span class="n">ip_id</span><span class="p">:</span>
<span class="n">ip_choices</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">action</span><span class="o">.</span><span class="n">fields</span><span class="p">[</span><span class="s">'ip_id'</span><span class="p">]</span><span class="o">.</span><span class="n">choices</span><span class="p">)</span>
<span class="n">context</span><span class="p">[</span><span class="s">"ip_address"</span><span class="p">]</span> <span class="o">=</span> <span class="n">ip_choices</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">ip_id</span><span class="p">,</span> <span class="bp">None</span><span class="p">)</span>
<span class="k">return</span> <span class="n">context</span>
<span class="k">class</span> <span class="nc">IPAssociationWorkflow</span><span class="p">(</span><span class="n">workflows</span><span class="o">.</span><span class="n">Workflow</span><span class="p">):</span></div></div>
<div class="viewcode-block" id="IPAssociationWorkflow"><a class="viewcode-back" href="../../../../../../sourcecode/horizon/horizon.dashboards.nova.access_and_security.floating_ips.workflows.html#horizon.dashboards.nova.access_and_security.floating_ips.workflows.IPAssociationWorkflow">[docs]</a> <span class="n">slug</span> <span class="o">=</span> <span class="s">"ip_association"</span>
<span class="n">name</span> <span class="o">=</span> <span class="n">_</span><span class="p">(</span><span class="s">"Manage Floating IP Associations"</span><span class="p">)</span>
<span class="n">finalize_button_name</span> <span class="o">=</span> <span class="n">_</span><span class="p">(</span><span class="s">"Associate"</span><span class="p">)</span>
<span class="n">success_message</span> <span class="o">=</span> <span class="n">_</span><span class="p">(</span><span class="s">'IP address </span><span class="si">%s</span><span class="s"> associated.'</span><span class="p">)</span>
<span class="n">failure_message</span> <span class="o">=</span> <span class="n">_</span><span class="p">(</span><span class="s">'Unable to associate IP address </span><span class="si">%s</span><span class="s">.'</span><span class="p">)</span>
<span class="n">success_url</span> <span class="o">=</span> <span class="s">"horizon:nova:access_and_security:index"</span>
<span class="n">default_steps</span> <span class="o">=</span> <span class="p">(</span><span class="n">AssociateIP</span><span class="p">,)</span>
<span class="k">def</span> <span class="nf">format_status_message</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">message</span><span class="p">):</span>
<div class="viewcode-block" id="IPAssociationWorkflow.format_status_message"><a class="viewcode-back" href="../../../../../../sourcecode/horizon/horizon.dashboards.nova.access_and_security.floating_ips.workflows.html#horizon.dashboards.nova.access_and_security.floating_ips.workflows.IPAssociationWorkflow.format_status_message">[docs]</a> <span class="k">return</span> <span class="n">message</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">'ip_address'</span><span class="p">,</span> <span class="s">'unknown IP address'</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">handle</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">request</span><span class="p">,</span> <span class="n">data</span><span class="p">):</span></div>
<div class="viewcode-block" id="IPAssociationWorkflow.handle"><a class="viewcode-back" href="../../../../../../sourcecode/horizon/horizon.dashboards.nova.access_and_security.floating_ips.workflows.html#horizon.dashboards.nova.access_and_security.floating_ips.workflows.IPAssociationWorkflow.handle">[docs]</a> <span class="k">try</span><span class="p">:</span>
<span class="n">api</span><span class="o">.</span><span class="n">nova</span><span class="o">.</span><span class="n">server_add_floating_ip</span><span class="p">(</span><span class="n">request</span><span class="p">,</span>
<span class="n">data</span><span class="p">[</span><span class="s">'instance_id'</span><span class="p">],</span>
<span class="n">data</span><span class="p">[</span><span class="s">'ip_id'</span><span class="p">])</span>
<span class="k">except</span><span class="p">:</span>
<span class="n">exceptions</span><span class="o">.</span><span class="n">handle</span><span class="p">(</span><span class="n">request</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">False</span>
<span class="k">return</span> <span class="bp">True</span>
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