<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>django.core.files.storage — Django 1.6.8 documentation</title> <link rel="stylesheet" href="../../../../_static/default.css" type="text/css" /> <link rel="stylesheet" href="../../../../_static/pygments.css" type="text/css" /> <script type="text/javascript"> var DOCUMENTATION_OPTIONS = { URL_ROOT: '../../../../', VERSION: '1.6.8', COLLAPSE_INDEX: false, FILE_SUFFIX: '.html', HAS_SOURCE: true }; </script> <script type="text/javascript" src="../../../../_static/jquery.js"></script> <script type="text/javascript" src="../../../../_static/underscore.js"></script> <script type="text/javascript" src="../../../../_static/doctools.js"></script> <link rel="top" title="Django 1.6.8 documentation" href="../../../../index.html" /> <link rel="up" 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class="kn">import</span> <span class="nn">errno</span> <span class="kn">from</span> <span class="nn">datetime</span> <span class="kn">import</span> <span class="n">datetime</span> <span class="kn">from</span> <span class="nn">django.conf</span> <span class="kn">import</span> <span class="n">settings</span> <span class="kn">from</span> <span class="nn">django.core.exceptions</span> <span class="kn">import</span> <span class="n">SuspiciousFileOperation</span> <span class="kn">from</span> <span class="nn">django.core.files</span> <span class="kn">import</span> <span class="n">locks</span><span class="p">,</span> <span class="n">File</span> <span class="kn">from</span> <span class="nn">django.core.files.move</span> <span class="kn">import</span> <span class="n">file_move_safe</span> <span class="kn">from</span> <span class="nn">django.utils.crypto</span> <span class="kn">import</span> <span class="n">get_random_string</span> <span class="kn">from</span> <span class="nn">django.utils.encoding</span> <span class="kn">import</span> <span class="n">force_text</span><span class="p">,</span> <span class="n">filepath_to_uri</span> <span class="kn">from</span> <span class="nn">django.utils.functional</span> <span class="kn">import</span> <span class="n">LazyObject</span> <span class="kn">from</span> <span class="nn">django.utils.module_loading</span> <span class="kn">import</span> <span class="n">import_by_path</span> <span class="kn">from</span> <span class="nn">django.utils.six.moves.urllib.parse</span> <span class="kn">import</span> <span class="n">urljoin</span> <span class="kn">from</span> <span class="nn">django.utils.text</span> <span class="kn">import</span> <span class="n">get_valid_filename</span> <span class="kn">from</span> <span class="nn">django.utils._os</span> <span class="kn">import</span> <span class="n">safe_join</span><span class="p">,</span> <span class="n">abspathu</span> <span class="n">__all__</span> <span class="o">=</span> <span class="p">(</span><span class="s">'Storage'</span><span class="p">,</span> <span class="s">'FileSystemStorage'</span><span class="p">,</span> <span class="s">'DefaultStorage'</span><span class="p">,</span> <span class="s">'default_storage'</span><span class="p">)</span> <div class="viewcode-block" id="Storage"><a class="viewcode-back" href="../../../../ref/files/storage.html#django.core.files.storage.Storage">[docs]</a><span class="k">class</span> <span class="nc">Storage</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> A base storage class, providing some default behaviors that all other</span> <span class="sd"> storage systems can inherit or override, as necessary.</span> <span class="sd"> """</span> <span class="c"># The following methods represent a public interface to private methods.</span> <span class="c"># These shouldn't be overridden by subclasses unless absolutely necessary.</span> <div class="viewcode-block" id="Storage.open"><a class="viewcode-back" href="../../../../ref/files/storage.html#django.core.files.storage.Storage.open">[docs]</a> <span class="k">def</span> <span class="nf">open</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">mode</span><span class="o">=</span><span class="s">'rb'</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Retrieves the specified file from storage.</span> <span class="sd"> """</span> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_open</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">mode</span><span class="p">)</span> </div> <div class="viewcode-block" id="Storage.save"><a class="viewcode-back" href="../../../../ref/files/storage.html#django.core.files.storage.Storage.save">[docs]</a> <span class="k">def</span> <span class="nf">save</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">content</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Saves new content to the file specified by name. The content should be</span> <span class="sd"> a proper File object or any python file-like object, ready to be read</span> <span class="sd"> from the beginning.</span> <span class="sd"> """</span> <span class="c"># Get the proper name for the file, as it will actually be saved.</span> <span class="k">if</span> <span class="n">name</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span> <span class="n">name</span> <span class="o">=</span> <span class="n">content</span><span class="o">.</span><span class="n">name</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">content</span><span class="p">,</span> <span class="s">'chunks'</span><span class="p">):</span> <span class="n">content</span> <span class="o">=</span> <span class="n">File</span><span class="p">(</span><span class="n">content</span><span class="p">)</span> <span class="n">name</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_available_name</span><span class="p">(</span><span class="n">name</span><span class="p">)</span> <span class="n">name</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_save</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">content</span><span class="p">)</span> <span class="c"># Store filenames with forward slashes, even on Windows</span> <span class="k">return</span> <span class="n">force_text</span><span class="p">(</span><span class="n">name</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s">'</span><span class="se">\\</span><span class="s">'</span><span class="p">,</span> <span class="s">'/'</span><span class="p">))</span> <span class="c"># These methods are part of the public API, with default implementations.</span> </div> <div class="viewcode-block" id="Storage.get_valid_name"><a class="viewcode-back" href="../../../../ref/files/storage.html#django.core.files.storage.Storage.get_valid_name">[docs]</a> <span class="k">def</span> <span class="nf">get_valid_name</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Returns a filename, based on the provided filename, that's suitable for</span> <span class="sd"> use in the target storage system.</span> <span class="sd"> """</span> <span class="k">return</span> <span class="n">get_valid_filename</span><span class="p">(</span><span class="n">name</span><span class="p">)</span> </div> <div class="viewcode-block" id="Storage.get_available_name"><a class="viewcode-back" href="../../../../ref/files/storage.html#django.core.files.storage.Storage.get_available_name">[docs]</a> <span class="k">def</span> <span class="nf">get_available_name</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Returns a filename that's free on the target storage system, and</span> <span class="sd"> available for new content to be written to.</span> <span class="sd"> """</span> <span class="n">dir_name</span><span class="p">,</span> <span class="n">file_name</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="n">name</span><span class="p">)</span> <span class="n">file_root</span><span class="p">,</span> <span class="n">file_ext</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">splitext</span><span class="p">(</span><span class="n">file_name</span><span class="p">)</span> <span class="c"># If the filename already exists, add an underscore and a random 7</span> <span class="c"># character alphanumeric string (before the file extension, if one</span> <span class="c"># exists) to the filename until the generated filename doesn't exist.</span> <span class="k">while</span> <span class="bp">self</span><span class="o">.</span><span class="n">exists</span><span class="p">(</span><span class="n">name</span><span class="p">):</span> <span class="c"># file_ext includes the dot.</span> <span class="n">name</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">dir_name</span><span class="p">,</span> <span class="s">"</span><span class="si">%s</span><span class="s">_</span><span class="si">%s%s</span><span class="s">"</span> <span class="o">%</span> <span class="p">(</span><span class="n">file_root</span><span class="p">,</span> <span class="n">get_random_string</span><span class="p">(</span><span class="mi">7</span><span class="p">),</span> <span class="n">file_ext</span><span class="p">))</span> <span class="k">return</span> <span class="n">name</span> </div> <div class="viewcode-block" id="Storage.path"><a class="viewcode-back" href="../../../../ref/files/storage.html#django.core.files.storage.Storage.path">[docs]</a> <span class="k">def</span> <span class="nf">path</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Returns a local filesystem path where the file can be retrieved using</span> <span class="sd"> Python's built-in open() function. Storage systems that can't be</span> <span class="sd"> accessed using open() should *not* implement this method.</span> <span class="sd"> """</span> <span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">(</span><span class="s">"This backend doesn't support absolute paths."</span><span class="p">)</span> <span class="c"># The following methods form the public API for storage systems, but with</span> <span class="c"># no default implementations. Subclasses must implement *all* of these.</span> </div> <div class="viewcode-block" id="Storage.delete"><a class="viewcode-back" href="../../../../ref/files/storage.html#django.core.files.storage.Storage.delete">[docs]</a> <span class="k">def</span> <span class="nf">delete</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Deletes the specified file from the storage system.</span> <span class="sd"> """</span> <span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">()</span> </div> <div class="viewcode-block" id="Storage.exists"><a class="viewcode-back" href="../../../../ref/files/storage.html#django.core.files.storage.Storage.exists">[docs]</a> <span class="k">def</span> <span class="nf">exists</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Returns True if a file referened by the given name already exists in the</span> <span class="sd"> storage system, or False if the name is available for a new file.</span> <span class="sd"> """</span> <span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">()</span> </div> <div class="viewcode-block" id="Storage.listdir"><a class="viewcode-back" href="../../../../ref/files/storage.html#django.core.files.storage.Storage.listdir">[docs]</a> <span class="k">def</span> <span class="nf">listdir</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">path</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Lists the contents of the specified path, returning a 2-tuple of lists;</span> <span class="sd"> the first item being directories, the second item being files.</span> <span class="sd"> """</span> <span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">()</span> </div> <div class="viewcode-block" id="Storage.size"><a class="viewcode-back" href="../../../../ref/files/storage.html#django.core.files.storage.Storage.size">[docs]</a> <span class="k">def</span> <span class="nf">size</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Returns the total size, in bytes, of the file specified by name.</span> <span class="sd"> """</span> <span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">()</span> </div> <div class="viewcode-block" id="Storage.url"><a class="viewcode-back" href="../../../../ref/files/storage.html#django.core.files.storage.Storage.url">[docs]</a> <span class="k">def</span> <span class="nf">url</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Returns an absolute URL where the file's contents can be accessed</span> <span class="sd"> directly by a Web browser.</span> <span class="sd"> """</span> <span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">()</span> </div> <div class="viewcode-block" id="Storage.accessed_time"><a class="viewcode-back" href="../../../../ref/files/storage.html#django.core.files.storage.Storage.accessed_time">[docs]</a> <span class="k">def</span> <span class="nf">accessed_time</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Returns the last accessed time (as datetime object) of the file</span> <span class="sd"> specified by name.</span> <span class="sd"> """</span> <span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">()</span> </div> <div class="viewcode-block" id="Storage.created_time"><a class="viewcode-back" href="../../../../ref/files/storage.html#django.core.files.storage.Storage.created_time">[docs]</a> <span class="k">def</span> <span class="nf">created_time</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Returns the creation time (as datetime object) of the file</span> <span class="sd"> specified by name.</span> <span class="sd"> """</span> <span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">()</span> </div> <div class="viewcode-block" id="Storage.modified_time"><a class="viewcode-back" href="../../../../ref/files/storage.html#django.core.files.storage.Storage.modified_time">[docs]</a> <span class="k">def</span> <span class="nf">modified_time</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Returns the last modified time (as datetime object) of the file</span> <span class="sd"> specified by name.</span> <span class="sd"> """</span> <span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">()</span> </div></div> <div class="viewcode-block" id="FileSystemStorage"><a class="viewcode-back" href="../../../../ref/files/storage.html#django.core.files.storage.FileSystemStorage">[docs]</a><span class="k">class</span> <span class="nc">FileSystemStorage</span><span class="p">(</span><span class="n">Storage</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Standard filesystem storage</span> <span class="sd"> """</span> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">location</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">base_url</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span> <span class="k">if</span> <span class="n">location</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span> <span class="n">location</span> <span class="o">=</span> <span class="n">settings</span><span class="o">.</span><span class="n">MEDIA_ROOT</span> <span class="bp">self</span><span class="o">.</span><span class="n">base_location</span> <span class="o">=</span> <span class="n">location</span> <span class="bp">self</span><span class="o">.</span><span class="n">location</span> <span class="o">=</span> <span class="n">abspathu</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">base_location</span><span class="p">)</span> <span class="k">if</span> <span class="n">base_url</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span> <span class="n">base_url</span> <span class="o">=</span> <span class="n">settings</span><span class="o">.</span><span class="n">MEDIA_URL</span> <span class="bp">self</span><span class="o">.</span><span class="n">base_url</span> <span class="o">=</span> <span class="n">base_url</span> <span class="k">def</span> <span class="nf">_open</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">mode</span><span class="o">=</span><span class="s">'rb'</span><span class="p">):</span> <span class="k">return</span> <span class="n">File</span><span class="p">(</span><span class="nb">open</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">path</span><span class="p">(</span><span class="n">name</span><span class="p">),</span> <span class="n">mode</span><span class="p">))</span> <span class="k">def</span> <span class="nf">_save</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">content</span><span class="p">):</span> <span class="n">full_path</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">path</span><span class="p">(</span><span class="n">name</span><span class="p">)</span> <span class="c"># Create any intermediate directories that do not exist.</span> <span class="c"># Note that there is a race between os.path.exists and os.makedirs:</span> <span class="c"># if os.makedirs fails with EEXIST, the directory was created</span> <span class="c"># concurrently, and we can continue normally. Refs #16082.</span> <span class="n">directory</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">dirname</span><span class="p">(</span><span class="n">full_path</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">exists</span><span class="p">(</span><span class="n">directory</span><span class="p">):</span> <span class="k">try</span><span class="p">:</span> <span class="n">os</span><span class="o">.</span><span class="n">makedirs</span><span class="p">(</span><span class="n">directory</span><span class="p">)</span> <span class="k">except</span> <span class="ne">OSError</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span> <span class="k">if</span> <span class="n">e</span><span class="o">.</span><span class="n">errno</span> <span class="o">!=</span> <span class="n">errno</span><span class="o">.</span><span class="n">EEXIST</span><span class="p">:</span> <span class="k">raise</span> <span class="k">if</span> <span class="ow">not</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">isdir</span><span class="p">(</span><span class="n">directory</span><span class="p">):</span> <span class="k">raise</span> <span class="ne">IOError</span><span class="p">(</span><span class="s">"</span><span class="si">%s</span><span class="s"> exists and is not a directory."</span> <span class="o">%</span> <span class="n">directory</span><span class="p">)</span> <span class="c"># There's a potential race condition between get_available_name and</span> <span class="c"># saving the file; it's possible that two threads might return the</span> <span class="c"># same name, at which point all sorts of fun happens. So we need to</span> <span class="c"># try to create the file, but if it already exists we have to go back</span> <span class="c"># to get_available_name() and try again.</span> <span class="k">while</span> <span class="bp">True</span><span class="p">:</span> <span class="k">try</span><span class="p">:</span> <span class="c"># This file has a file path that we can move.</span> <span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">content</span><span class="p">,</span> <span class="s">'temporary_file_path'</span><span class="p">):</span> <span class="n">file_move_safe</span><span class="p">(</span><span class="n">content</span><span class="o">.</span><span class="n">temporary_file_path</span><span class="p">(),</span> <span class="n">full_path</span><span class="p">)</span> <span class="n">content</span><span class="o">.</span><span class="n">close</span><span class="p">()</span> <span class="c"># This is a normal uploadedfile that we can stream.</span> <span class="k">else</span><span class="p">:</span> <span class="c"># This fun binary flag incantation makes os.open throw an</span> <span class="c"># OSError if the file already exists before we open it.</span> <span class="n">flags</span> <span class="o">=</span> <span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">O_WRONLY</span> <span class="o">|</span> <span class="n">os</span><span class="o">.</span><span class="n">O_CREAT</span> <span class="o">|</span> <span class="n">os</span><span class="o">.</span><span class="n">O_EXCL</span> <span class="o">|</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">os</span><span class="p">,</span> <span class="s">'O_BINARY'</span><span class="p">,</span> <span class="mi">0</span><span class="p">))</span> <span class="c"># The current umask value is masked out by os.open!</span> <span class="n">fd</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">open</span><span class="p">(</span><span class="n">full_path</span><span class="p">,</span> <span class="n">flags</span><span class="p">,</span> <span class="mi">0</span><span class="n">o666</span><span class="p">)</span> <span class="n">_file</span> <span class="o">=</span> <span class="bp">None</span> <span class="k">try</span><span class="p">:</span> <span class="n">locks</span><span class="o">.</span><span class="n">lock</span><span class="p">(</span><span class="n">fd</span><span class="p">,</span> <span class="n">locks</span><span class="o">.</span><span class="n">LOCK_EX</span><span class="p">)</span> <span class="k">for</span> <span class="n">chunk</span> <span class="ow">in</span> <span class="n">content</span><span class="o">.</span><span class="n">chunks</span><span class="p">():</span> <span class="k">if</span> <span class="n">_file</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span> <span class="n">mode</span> <span class="o">=</span> <span class="s">'wb'</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">chunk</span><span class="p">,</span> <span class="nb">bytes</span><span class="p">)</span> <span class="k">else</span> <span class="s">'wt'</span> <span class="n">_file</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">fdopen</span><span class="p">(</span><span class="n">fd</span><span class="p">,</span> <span class="n">mode</span><span class="p">)</span> <span class="n">_file</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">chunk</span><span class="p">)</span> <span class="k">finally</span><span class="p">:</span> <span class="n">locks</span><span class="o">.</span><span class="n">unlock</span><span class="p">(</span><span class="n">fd</span><span class="p">)</span> <span class="k">if</span> <span class="n">_file</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span> <span class="n">_file</span><span class="o">.</span><span class="n">close</span><span class="p">()</span> <span class="k">else</span><span class="p">:</span> <span class="n">os</span><span class="o">.</span><span class="n">close</span><span class="p">(</span><span class="n">fd</span><span class="p">)</span> <span class="k">except</span> <span class="ne">OSError</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span> <span class="k">if</span> <span class="n">e</span><span class="o">.</span><span class="n">errno</span> <span class="o">==</span> <span class="n">errno</span><span class="o">.</span><span class="n">EEXIST</span><span class="p">:</span> <span class="c"># Ooops, the file exists. We need a new file name.</span> <span class="n">name</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_available_name</span><span class="p">(</span><span class="n">name</span><span class="p">)</span> <span class="n">full_path</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">path</span><span class="p">(</span><span class="n">name</span><span class="p">)</span> <span class="k">else</span><span class="p">:</span> <span class="k">raise</span> <span class="k">else</span><span class="p">:</span> <span class="c"># OK, the file save worked. Break out of the loop.</span> <span class="k">break</span> <span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">FILE_UPLOAD_PERMISSIONS</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span> <span class="n">os</span><span class="o">.</span><span class="n">chmod</span><span class="p">(</span><span class="n">full_path</span><span class="p">,</span> <span class="n">settings</span><span class="o">.</span><span class="n">FILE_UPLOAD_PERMISSIONS</span><span class="p">)</span> <span class="k">return</span> <span class="n">name</span> <span class="k">def</span> <span class="nf">delete</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span> <span class="k">assert</span> <span class="n">name</span><span class="p">,</span> <span class="s">"The name argument is not allowed to be empty."</span> <span class="n">name</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">path</span><span class="p">(</span><span class="n">name</span><span class="p">)</span> <span class="c"># If the file exists, delete it from the filesystem.</span> <span class="c"># Note that there is a race between os.path.exists and os.remove:</span> <span class="c"># if os.remove fails with ENOENT, the file was removed</span> <span class="c"># concurrently, and we can continue normally.</span> <span class="k">if</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">exists</span><span class="p">(</span><span class="n">name</span><span class="p">):</span> <span class="k">try</span><span class="p">:</span> <span class="n">os</span><span class="o">.</span><span class="n">remove</span><span class="p">(</span><span class="n">name</span><span class="p">)</span> <span class="k">except</span> <span class="ne">OSError</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span> <span class="k">if</span> <span class="n">e</span><span class="o">.</span><span class="n">errno</span> <span class="o">!=</span> <span class="n">errno</span><span class="o">.</span><span class="n">ENOENT</span><span class="p">:</span> <span class="k">raise</span> <span class="k">def</span> <span class="nf">exists</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span> <span class="k">return</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">exists</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">path</span><span class="p">(</span><span class="n">name</span><span class="p">))</span> <span class="k">def</span> <span class="nf">listdir</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">path</span><span class="p">):</span> <span class="n">path</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">path</span><span class="p">(</span><span class="n">path</span><span class="p">)</span> <span class="n">directories</span><span class="p">,</span> <span class="n">files</span> <span class="o">=</span> <span class="p">[],</span> <span class="p">[]</span> <span class="k">for</span> <span class="n">entry</span> <span class="ow">in</span> <span class="n">os</span><span class="o">.</span><span class="n">listdir</span><span class="p">(</span><span class="n">path</span><span class="p">):</span> <span class="k">if</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">isdir</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">path</span><span class="p">,</span> <span class="n">entry</span><span class="p">)):</span> <span class="n">directories</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">entry</span><span class="p">)</span> <span class="k">else</span><span class="p">:</span> <span class="n">files</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">entry</span><span class="p">)</span> <span class="k">return</span> <span class="n">directories</span><span class="p">,</span> <span class="n">files</span> <span class="k">def</span> <span class="nf">path</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span> <span class="k">try</span><span class="p">:</span> <span class="n">path</span> <span class="o">=</span> <span class="n">safe_join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">location</span><span class="p">,</span> <span class="n">name</span><span class="p">)</span> <span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span> <span class="k">raise</span> <span class="n">SuspiciousFileOperation</span><span class="p">(</span><span class="s">"Attempted access to '</span><span class="si">%s</span><span class="s">' denied."</span> <span class="o">%</span> <span class="n">name</span><span class="p">)</span> <span class="k">return</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">normpath</span><span class="p">(</span><span class="n">path</span><span class="p">)</span> <span class="k">def</span> <span class="nf">size</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span> <span class="k">return</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">getsize</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">path</span><span class="p">(</span><span class="n">name</span><span class="p">))</span> <span class="k">def</span> <span class="nf">url</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">base_url</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span> <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s">"This file is not accessible via a URL."</span><span class="p">)</span> <span class="k">return</span> <span class="n">urljoin</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">base_url</span><span class="p">,</span> <span class="n">filepath_to_uri</span><span class="p">(</span><span class="n">name</span><span class="p">))</span> <span class="k">def</span> <span class="nf">accessed_time</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span> <span class="k">return</span> <span class="n">datetime</span><span class="o">.</span><span class="n">fromtimestamp</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">getatime</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">path</span><span class="p">(</span><span class="n">name</span><span class="p">)))</span> <span class="k">def</span> <span class="nf">created_time</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span> <span class="k">return</span> <span class="n">datetime</span><span class="o">.</span><span class="n">fromtimestamp</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">getctime</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">path</span><span class="p">(</span><span class="n">name</span><span class="p">)))</span> <span class="k">def</span> <span class="nf">modified_time</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span> <span class="k">return</span> <span class="n">datetime</span><span class="o">.</span><span class="n">fromtimestamp</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">getmtime</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">path</span><span class="p">(</span><span class="n">name</span><span class="p">)))</span> </div> <div class="viewcode-block" id="get_storage_class"><a class="viewcode-back" href="../../../../ref/files/storage.html#django.core.files.storage.get_storage_class">[docs]</a><span class="k">def</span> <span class="nf">get_storage_class</span><span class="p">(</span><span class="n">import_path</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span> <span class="k">return</span> <span class="n">import_by_path</span><span class="p">(</span><span class="n">import_path</span> <span class="ow">or</span> <span class="n">settings</span><span class="o">.</span><span class="n">DEFAULT_FILE_STORAGE</span><span class="p">)</span> </div> <div class="viewcode-block" id="DefaultStorage"><a class="viewcode-back" href="../../../../ref/files/storage.html#django.core.files.storage.DefaultStorage">[docs]</a><span class="k">class</span> <span class="nc">DefaultStorage</span><span class="p">(</span><span class="n">LazyObject</span><span class="p">):</span> <span class="k">def</span> <span class="nf">_setup</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> <span class="bp">self</span><span class="o">.</span><span class="n">_wrapped</span> <span class="o">=</span> <span class="n">get_storage_class</span><span class="p">()()</span> </div> <span class="n">default_storage</span> <span class="o">=</span> <span class="n">DefaultStorage</span><span class="p">()</span> </pre></div> </div> </div> </div> <div class="yui-b" id="sidebar"> <div class="sphinxsidebar"> <div class="sphinxsidebarwrapper"> <h3>Browse</h3> <ul> </ul> <h3>You are here:</h3> <ul> <li> <a href="../../../../index.html">Django 1.6.8 documentation</a> <ul><li><a href="../../../index.html">Module code</a> <ul><li><a href="../files.html">django.core.files</a> <ul><li>django.core.files.storage</li></ul> 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