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<!DOCTYPE html>
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<title>leancloud.file_ — LeanCloud-Python-SDK 2.6.1 文档</title>
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<h1>leancloud.file_ 源代码</h1><div class="highlight"><pre>
<span></span><span class="c1"># coding: utf-8</span>
<span class="kn">from</span> <span class="nn">__future__</span> <span class="kn">import</span> <span class="n">absolute_import</span>
<span class="kn">from</span> <span class="nn">__future__</span> <span class="kn">import</span> <span class="n">division</span>
<span class="kn">from</span> <span class="nn">__future__</span> <span class="kn">import</span> <span class="n">print_function</span>
<span class="kn">from</span> <span class="nn">__future__</span> <span class="kn">import</span> <span class="n">unicode_literals</span>
<span class="kn">import</span> <span class="nn">os</span>
<span class="kn">import</span> <span class="nn">re</span>
<span class="kn">import</span> <span class="nn">io</span>
<span class="kn">import</span> <span class="nn">hashlib</span>
<span class="kn">import</span> <span class="nn">logging</span>
<span class="kn">import</span> <span class="nn">threading</span>
<span class="kn">import</span> <span class="nn">six</span>
<span class="kn">import</span> <span class="nn">requests</span>
<span class="kn">import</span> <span class="nn">leancloud</span>
<span class="kn">from</span> <span class="nn">leancloud</span> <span class="kn">import</span> <span class="n">client</span>
<span class="kn">from</span> <span class="nn">leancloud</span> <span class="kn">import</span> <span class="n">utils</span>
<span class="kn">from</span> <span class="nn">leancloud.errors</span> <span class="kn">import</span> <span class="n">LeanCloudError</span>
<span class="n">__author__</span> <span class="o">=</span> <span class="s2">"asaka <lan@leancloud.rocks>"</span>
<span class="n">logger</span> <span class="o">=</span> <span class="n">logging</span><span class="o">.</span><span class="n">getLogger</span><span class="p">(</span><span class="vm">__name__</span><span class="p">)</span>
<span class="n">DEFAULT_TIMEOUT</span> <span class="o">=</span> <span class="mi">30</span>
<div class="viewcode-block" id="File"><a class="viewcode-back" href="../../index.html#leancloud.File">[文档]</a><span class="k">class</span> <span class="nc">File</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="n">_class_name</span> <span class="o">=</span> <span class="s2">"_File"</span> <span class="c1"># walks like a leancloud.Object</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="s2">""</span><span class="p">,</span> <span class="n">data</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">mime_type</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_name</span> <span class="o">=</span> <span class="n">name</span>
<span class="bp">self</span><span class="o">.</span><span class="n">key</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">id</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">created_at</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">updated_at</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_url</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_successful_url</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_acl</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">current_user</span> <span class="o">=</span> <span class="n">leancloud</span><span class="o">.</span><span class="n">User</span><span class="o">.</span><span class="n">get_current</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">timeout</span> <span class="o">=</span> <span class="mi">30</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_metadata</span> <span class="o">=</span> <span class="p">{</span><span class="s2">"owner"</span><span class="p">:</span> <span class="s2">"unknown"</span><span class="p">}</span>
<span class="k">if</span> <span class="p">(</span>
<span class="bp">self</span><span class="o">.</span><span class="n">current_user</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">current_user</span> <span class="o">!=</span> <span class="kc">None</span>
<span class="p">):</span> <span class="c1"># NOQA: self.current_user may be a thread_local object</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_metadata</span><span class="p">[</span><span class="s2">"owner"</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">current_user</span><span class="o">.</span><span class="n">id</span>
<span class="n">pattern</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">compile</span><span class="p">(</span><span class="sa">r</span><span class="s2">"\.([^.]*)$"</span><span class="p">)</span>
<span class="n">extension</span> <span class="o">=</span> <span class="n">pattern</span><span class="o">.</span><span class="n">findall</span><span class="p">(</span><span class="n">name</span><span class="p">)</span>
<span class="k">if</span> <span class="n">extension</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">extension</span> <span class="o">=</span> <span class="n">extension</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">extension</span> <span class="o">=</span> <span class="s2">""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_mime_type</span> <span class="o">=</span> <span class="n">mime_type</span>
<span class="k">if</span> <span class="n">data</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_source</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">return</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">data</span><span class="o">.</span><span class="n">read</span>
<span class="n">data</span><span class="o">.</span><span class="n">tell</span>
<span class="n">data</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">os</span><span class="o">.</span><span class="n">SEEK_END</span><span class="p">)</span>
<span class="n">data</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">os</span><span class="o">.</span><span class="n">SEEK_SET</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">Exception</span><span class="p">:</span>
<span class="k">if</span> <span class="p">(</span><span class="n">six</span><span class="o">.</span><span class="n">PY3</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="p">(</span><span class="nb">memoryview</span><span class="p">,</span> <span class="nb">bytes</span><span class="p">)))</span> <span class="ow">or</span> <span class="p">(</span>
<span class="n">six</span><span class="o">.</span><span class="n">PY2</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="p">(</span><span class="n">buffer</span><span class="p">,</span> <span class="nb">memoryview</span><span class="p">,</span> <span class="nb">str</span><span class="p">))</span> <span class="c1"># noqa: F821</span>
<span class="p">):</span>
<span class="n">data</span> <span class="o">=</span> <span class="n">io</span><span class="o">.</span><span class="n">BytesIO</span><span class="p">(</span><span class="n">data</span><span class="p">)</span>
<span class="k">elif</span> <span class="n">data</span><span class="o">.</span><span class="n">read</span><span class="p">:</span>
<span class="n">data</span> <span class="o">=</span> <span class="n">io</span><span class="o">.</span><span class="n">BytesIO</span><span class="p">(</span><span class="n">data</span><span class="o">.</span><span class="n">read</span><span class="p">())</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span>
<span class="s2">"Do not know how to handle data, accepts file like object or bytes"</span>
<span class="p">)</span>
<span class="n">data</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">os</span><span class="o">.</span><span class="n">SEEK_SET</span><span class="p">)</span>
<span class="n">checksum</span> <span class="o">=</span> <span class="n">hashlib</span><span class="o">.</span><span class="n">md5</span><span class="p">()</span>
<span class="k">while</span> <span class="kc">True</span><span class="p">:</span>
<span class="n">chunk</span> <span class="o">=</span> <span class="n">data</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">4096</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">chunk</span><span class="p">:</span>
<span class="k">break</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">checksum</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">chunk</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">TypeError</span><span class="p">:</span>
<span class="n">checksum</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">chunk</span><span class="o">.</span><span class="n">encode</span><span class="p">(</span><span class="s2">"utf-8"</span><span class="p">))</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_metadata</span><span class="p">[</span><span class="s2">"_checksum"</span><span class="p">]</span> <span class="o">=</span> <span class="n">checksum</span><span class="o">.</span><span class="n">hexdigest</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_metadata</span><span class="p">[</span><span class="s2">"size"</span><span class="p">]</span> <span class="o">=</span> <span class="n">data</span><span class="o">.</span><span class="n">tell</span><span class="p">()</span>
<span class="c1"># 3.5MB, 1Mbps * 30s</span>
<span class="c1"># increase timeout</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_metadata</span><span class="p">[</span><span class="s2">"size"</span><span class="p">]</span> <span class="o">></span> <span class="mi">3750000</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">timeout</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">timeout</span> <span class="o">*</span> <span class="nb">int</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_metadata</span><span class="p">[</span><span class="s2">"size"</span><span class="p">]</span> <span class="o">/</span> <span class="mi">3750000</span><span class="p">)</span>
<span class="n">data</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">os</span><span class="o">.</span><span class="n">SEEK_SET</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_source</span> <span class="o">=</span> <span class="n">data</span>
<span class="nd">@utils</span><span class="o">.</span><span class="n">classproperty</span>
<span class="k">def</span> <span class="nf">query</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="n">leancloud</span><span class="o">.</span><span class="n">Query</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<div class="viewcode-block" id="File.create_with_url"><a class="viewcode-back" href="../../index.html#leancloud.File.create_with_url">[文档]</a> <span class="nd">@classmethod</span>
<span class="k">def</span> <span class="nf">create_with_url</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">url</span><span class="p">,</span> <span class="n">meta_data</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">mime_type</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="n">f</span> <span class="o">=</span> <span class="n">File</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="kc">None</span><span class="p">,</span> <span class="n">mime_type</span><span class="p">)</span>
<span class="k">if</span> <span class="n">meta_data</span><span class="p">:</span>
<span class="n">f</span><span class="o">.</span><span class="n">_metadata</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">meta_data</span><span class="p">)</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">url</span><span class="p">,</span> <span class="n">six</span><span class="o">.</span><span class="n">string_types</span><span class="p">):</span>
<span class="n">f</span><span class="o">.</span><span class="n">_url</span> <span class="o">=</span> <span class="n">url</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s2">"url must be a str / unicode"</span><span class="p">)</span>
<span class="n">f</span><span class="o">.</span><span class="n">_metadata</span><span class="p">[</span><span class="s2">"__source"</span><span class="p">]</span> <span class="o">=</span> <span class="s2">"external"</span>
<span class="k">return</span> <span class="n">f</span></div>
<div class="viewcode-block" id="File.create_without_data"><a class="viewcode-back" href="../../index.html#leancloud.File.create_without_data">[文档]</a> <span class="nd">@classmethod</span>
<span class="k">def</span> <span class="nf">create_without_data</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">object_id</span><span class="p">):</span>
<span class="n">f</span> <span class="o">=</span> <span class="n">File</span><span class="p">(</span><span class="s2">""</span><span class="p">)</span>
<span class="n">f</span><span class="o">.</span><span class="n">id</span> <span class="o">=</span> <span class="n">object_id</span>
<span class="k">return</span> <span class="n">f</span></div>
<div class="viewcode-block" id="File.get_acl"><a class="viewcode-back" href="../../index.html#leancloud.File.get_acl">[文档]</a> <span class="k">def</span> <span class="nf">get_acl</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_acl</span></div>
<div class="viewcode-block" id="File.set_acl"><a class="viewcode-back" href="../../index.html#leancloud.File.set_acl">[文档]</a> <span class="k">def</span> <span class="nf">set_acl</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">acl</span><span class="p">):</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">acl</span><span class="p">,</span> <span class="n">leancloud</span><span class="o">.</span><span class="n">ACL</span><span class="p">):</span>
<span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="s2">"acl must be a leancloud.ACL instance"</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_acl</span> <span class="o">=</span> <span class="n">acl</span></div>
<span class="nd">@property</span>
<span class="k">def</span> <span class="nf">name</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_name</span>
<span class="nd">@property</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="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_successful_url</span>
<span class="nd">@property</span>
<span class="k">def</span> <span class="nf">mime_type</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_mime_type</span>
<span class="nd">@mime_type</span><span class="o">.</span><span class="n">setter</span>
<span class="k">def</span> <span class="nf">set_mime_type</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">mime_type</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_mime_type</span> <span class="o">=</span> <span class="n">mime_type</span>
<span class="nd">@property</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="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_metadata</span><span class="p">[</span><span class="s2">"size"</span><span class="p">]</span>
<span class="nd">@property</span>
<span class="k">def</span> <span class="nf">owner_id</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_metadata</span><span class="p">[</span><span class="s2">"owner"</span><span class="p">]</span>
<span class="nd">@property</span>
<span class="k">def</span> <span class="nf">metadata</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_metadata</span>
<div class="viewcode-block" id="File.get_thumbnail_url"><a class="viewcode-back" href="../../index.html#leancloud.File.get_thumbnail_url">[文档]</a> <span class="k">def</span> <span class="nf">get_thumbnail_url</span><span class="p">(</span>
<span class="bp">self</span><span class="p">,</span> <span class="n">width</span><span class="p">,</span> <span class="n">height</span><span class="p">,</span> <span class="n">quality</span><span class="o">=</span><span class="mi">100</span><span class="p">,</span> <span class="n">scale_to_fit</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">fmt</span><span class="o">=</span><span class="s2">"png"</span>
<span class="p">):</span>
<span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">url</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s2">"invalid url"</span><span class="p">)</span>
<span class="k">if</span> <span class="n">width</span> <span class="o"><</span> <span class="mi">0</span> <span class="ow">or</span> <span class="n">height</span> <span class="o"><</span> <span class="mi">0</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s2">"invalid height or width params"</span><span class="p">)</span>
<span class="k">if</span> <span class="n">quality</span> <span class="o">></span> <span class="mi">100</span> <span class="ow">or</span> <span class="n">quality</span> <span class="o"><=</span> <span class="mi">0</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s2">"quality must between 0 and 100"</span><span class="p">)</span>
<span class="n">mode</span> <span class="o">=</span> <span class="mi">2</span> <span class="k">if</span> <span class="n">scale_to_fit</span> <span class="k">else</span> <span class="mi">1</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">url</span> <span class="o">+</span> <span class="s2">"?imageView/</span><span class="si">{0}</span><span class="s2">/w/</span><span class="si">{1}</span><span class="s2">/h/</span><span class="si">{2}</span><span class="s2">/q/</span><span class="si">{3}</span><span class="s2">/format/</span><span class="si">{4}</span><span class="s2">"</span><span class="o">.</span><span class="n">format</span><span class="p">(</span>
<span class="n">mode</span><span class="p">,</span> <span class="n">width</span><span class="p">,</span> <span class="n">height</span><span class="p">,</span> <span class="n">quality</span><span class="p">,</span> <span class="n">fmt</span>
<span class="p">)</span></div>
<div class="viewcode-block" id="File.destroy"><a class="viewcode-back" href="../../index.html#leancloud.File.destroy">[文档]</a> <span class="k">def</span> <span class="nf">destroy</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">id</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">False</span>
<span class="n">response</span> <span class="o">=</span> <span class="n">client</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="s2">"/files/</span><span class="si">{0}</span><span class="s2">"</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">id</span><span class="p">))</span>
<span class="k">if</span> <span class="n">response</span><span class="o">.</span><span class="n">status_code</span> <span class="o">!=</span> <span class="mi">200</span><span class="p">:</span>
<span class="k">raise</span> <span class="n">LeanCloudError</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="s2">"the file is not sucessfully destroyed"</span><span class="p">)</span></div>
<span class="k">def</span> <span class="nf">_save_to_qiniu</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">token</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_source</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="kn">import</span> <span class="nn">qiniu</span>
<span class="n">qiniu</span><span class="o">.</span><span class="n">set_default</span><span class="p">(</span><span class="n">connection_timeout</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">timeout</span><span class="p">)</span>
<span class="n">ret</span><span class="p">,</span> <span class="n">info</span> <span class="o">=</span> <span class="n">qiniu</span><span class="o">.</span><span class="n">put_data</span><span class="p">(</span><span class="n">token</span><span class="p">,</span> <span class="n">key</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_source</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="k">if</span> <span class="n">info</span><span class="o">.</span><span class="n">status_code</span> <span class="o">!=</span> <span class="mi">200</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_save_callback</span><span class="p">(</span><span class="n">token</span><span class="p">,</span> <span class="kc">False</span><span class="p">)</span>
<span class="k">raise</span> <span class="n">LeanCloudError</span><span class="p">(</span>
<span class="mi">1</span><span class="p">,</span>
<span class="s2">"the file is not saved, qiniu status code: </span><span class="si">{0}</span><span class="s2">"</span><span class="o">.</span><span class="n">format</span><span class="p">(</span>
<span class="n">info</span><span class="o">.</span><span class="n">status_code</span>
<span class="p">),</span>
<span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_save_callback</span><span class="p">(</span><span class="n">token</span><span class="p">,</span> <span class="kc">True</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">_save_to_s3</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">token</span><span class="p">,</span> <span class="n">upload_url</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_source</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">response</span> <span class="o">=</span> <span class="n">requests</span><span class="o">.</span><span class="n">put</span><span class="p">(</span>
<span class="n">upload_url</span><span class="p">,</span> <span class="n">data</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_source</span><span class="p">,</span> <span class="n">headers</span><span class="o">=</span><span class="p">{</span><span class="s2">"Content-Type"</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">mime_type</span><span class="p">}</span>
<span class="p">)</span>
<span class="k">if</span> <span class="n">response</span><span class="o">.</span><span class="n">status_code</span> <span class="o">!=</span> <span class="mi">200</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_save_callback</span><span class="p">(</span><span class="n">token</span><span class="p">,</span> <span class="kc">False</span><span class="p">)</span>
<span class="k">raise</span> <span class="n">LeanCloudError</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="s2">"The file is not successfully saved to S3"</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_source</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_save_callback</span><span class="p">(</span><span class="n">token</span><span class="p">,</span> <span class="kc">True</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">_save_external</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">data</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">"name"</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">_name</span><span class="p">,</span>
<span class="s2">"ACL"</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">_acl</span><span class="p">,</span>
<span class="s2">"metaData"</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">_metadata</span><span class="p">,</span>
<span class="s2">"mime_type"</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">mime_type</span><span class="p">,</span>
<span class="s2">"url"</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">_url</span><span class="p">,</span>
<span class="p">}</span>
<span class="n">response</span> <span class="o">=</span> <span class="n">client</span><span class="o">.</span><span class="n">post</span><span class="p">(</span><span class="s2">"/files"</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_name</span><span class="p">),</span> <span class="n">data</span><span class="p">)</span>
<span class="n">content</span> <span class="o">=</span> <span class="n">response</span><span class="o">.</span><span class="n">json</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">id</span> <span class="o">=</span> <span class="n">content</span><span class="p">[</span><span class="s2">"objectId"</span><span class="p">]</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_successful_url</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_url</span>
<span class="n">_created_at</span> <span class="o">=</span> <span class="n">utils</span><span class="o">.</span><span class="n">decode_date_string</span><span class="p">(</span><span class="n">content</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"createdAt"</span><span class="p">))</span>
<span class="n">_updated_at</span> <span class="o">=</span> <span class="n">utils</span><span class="o">.</span><span class="n">decode_updated_at</span><span class="p">(</span><span class="n">content</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"updatedAt"</span><span class="p">),</span> <span class="n">_created_at</span><span class="p">)</span>
<span class="k">if</span> <span class="n">_created_at</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">created_at</span> <span class="o">=</span> <span class="n">_created_at</span>
<span class="k">if</span> <span class="n">_updated_at</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">updated_at</span> <span class="o">=</span> <span class="n">_updated_at</span>
<span class="k">def</span> <span class="nf">_save_to_qcloud</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">token</span><span class="p">,</span> <span class="n">upload_url</span><span class="p">):</span>
<span class="n">headers</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">"Authorization"</span><span class="p">:</span> <span class="n">token</span><span class="p">,</span>
<span class="p">}</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_source</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">data</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">"op"</span><span class="p">:</span> <span class="s2">"upload"</span><span class="p">,</span>
<span class="s2">"filecontent"</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source</span><span class="o">.</span><span class="n">read</span><span class="p">(),</span>
<span class="p">}</span>
<span class="n">response</span> <span class="o">=</span> <span class="n">requests</span><span class="o">.</span><span class="n">post</span><span class="p">(</span><span class="n">upload_url</span><span class="p">,</span> <span class="n">headers</span><span class="o">=</span><span class="n">headers</span><span class="p">,</span> <span class="n">files</span><span class="o">=</span><span class="n">data</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_source</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">info</span> <span class="o">=</span> <span class="n">response</span><span class="o">.</span><span class="n">json</span><span class="p">()</span>
<span class="k">if</span> <span class="n">info</span><span class="p">[</span><span class="s2">"code"</span><span class="p">]</span> <span class="o">!=</span> <span class="mi">0</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_save_callback</span><span class="p">(</span><span class="n">token</span><span class="p">,</span> <span class="kc">False</span><span class="p">)</span>
<span class="k">raise</span> <span class="n">LeanCloudError</span><span class="p">(</span>
<span class="mi">1</span><span class="p">,</span>
<span class="s2">"this file is not saved, qcloud cos status code: </span><span class="si">{}</span><span class="s2">"</span><span class="o">.</span><span class="n">format</span><span class="p">(</span>
<span class="n">info</span><span class="p">[</span><span class="s2">"code"</span><span class="p">]</span>
<span class="p">),</span>
<span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_save_callback</span><span class="p">(</span><span class="n">token</span><span class="p">,</span> <span class="kc">True</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">_save_callback</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">token</span><span class="p">,</span> <span class="n">successed</span><span class="p">):</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">token</span><span class="p">:</span>
<span class="k">return</span>
<span class="k">def</span> <span class="nf">f</span><span class="p">():</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">client</span><span class="o">.</span><span class="n">post</span><span class="p">(</span><span class="s2">"/fileCallback"</span><span class="p">,</span> <span class="p">{</span><span class="s2">"token"</span><span class="p">:</span> <span class="n">token</span><span class="p">,</span> <span class="s2">"result"</span><span class="p">:</span> <span class="n">successed</span><span class="p">})</span>
<span class="k">except</span> <span class="n">LeanCloudError</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">warning</span><span class="p">(</span><span class="s2">"call file callback failed, error: </span><span class="si">%s</span><span class="s2">"</span><span class="p">,</span> <span class="n">e</span><span class="p">)</span>
<span class="n">threading</span><span class="o">.</span><span class="n">Thread</span><span class="p">(</span><span class="n">target</span><span class="o">=</span><span class="n">f</span><span class="p">)</span><span class="o">.</span><span class="n">start</span><span class="p">()</span>
<div class="viewcode-block" id="File.save"><a class="viewcode-back" href="../../index.html#leancloud.File.save">[文档]</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="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_url</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">metadata</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"__source"</span><span class="p">)</span> <span class="o">==</span> <span class="s2">"external"</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_save_external</span><span class="p">()</span>
<span class="k">elif</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source</span><span class="p">:</span>
<span class="k">pass</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">content</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_file_token</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_mime_type</span> <span class="o">=</span> <span class="n">content</span><span class="p">[</span><span class="s2">"mime_type"</span><span class="p">]</span>
<span class="k">if</span> <span class="n">content</span><span class="p">[</span><span class="s2">"provider"</span><span class="p">]</span> <span class="o">==</span> <span class="s2">"qiniu"</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_save_to_qiniu</span><span class="p">(</span><span class="n">content</span><span class="p">[</span><span class="s2">"token"</span><span class="p">],</span> <span class="n">content</span><span class="p">[</span><span class="s2">"key"</span><span class="p">])</span>
<span class="k">elif</span> <span class="n">content</span><span class="p">[</span><span class="s2">"provider"</span><span class="p">]</span> <span class="o">==</span> <span class="s2">"qcloud"</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_save_to_qcloud</span><span class="p">(</span><span class="n">content</span><span class="p">[</span><span class="s2">"token"</span><span class="p">],</span> <span class="n">content</span><span class="p">[</span><span class="s2">"upload_url"</span><span class="p">])</span>
<span class="k">elif</span> <span class="n">content</span><span class="p">[</span><span class="s2">"provider"</span><span class="p">]</span> <span class="o">==</span> <span class="s2">"s3"</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_save_to_s3</span><span class="p">(</span><span class="n">content</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"token"</span><span class="p">),</span> <span class="n">content</span><span class="p">[</span><span class="s2">"upload_url"</span><span class="p">])</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">(</span><span class="s2">"The provider field in the fetched content is empty"</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_update_data</span><span class="p">(</span><span class="n">content</span><span class="p">)</span></div>
<span class="k">def</span> <span class="nf">_update_data</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">server_data</span><span class="p">):</span>
<span class="k">if</span> <span class="s2">"objectId"</span> <span class="ow">in</span> <span class="n">server_data</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">id</span> <span class="o">=</span> <span class="n">server_data</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"objectId"</span><span class="p">)</span>
<span class="k">if</span> <span class="s2">"name"</span> <span class="ow">in</span> <span class="n">server_data</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_name</span> <span class="o">=</span> <span class="n">server_data</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"name"</span><span class="p">)</span>
<span class="k">if</span> <span class="s2">"url"</span> <span class="ow">in</span> <span class="n">server_data</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_url</span> <span class="o">=</span> <span class="n">server_data</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"url"</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_successful_url</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_url</span>
<span class="k">if</span> <span class="s2">"key"</span> <span class="ow">in</span> <span class="n">server_data</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">key</span> <span class="o">=</span> <span class="n">server_data</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"key"</span><span class="p">)</span>
<span class="k">if</span> <span class="s2">"mime_type"</span> <span class="ow">in</span> <span class="n">server_data</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_mime_type</span> <span class="o">=</span> <span class="n">server_data</span><span class="p">[</span><span class="s2">"mime_type"</span><span class="p">]</span>
<span class="k">if</span> <span class="s2">"metaData"</span> <span class="ow">in</span> <span class="n">server_data</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_metadata</span> <span class="o">=</span> <span class="n">server_data</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"metaData"</span><span class="p">)</span>
<span class="n">_created_at</span> <span class="o">=</span> <span class="n">utils</span><span class="o">.</span><span class="n">decode_date_string</span><span class="p">(</span><span class="n">server_data</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"createdAt"</span><span class="p">))</span>
<span class="n">_updated_at</span> <span class="o">=</span> <span class="n">utils</span><span class="o">.</span><span class="n">decode_updated_at</span><span class="p">(</span><span class="n">server_data</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"updatedAt"</span><span class="p">),</span> <span class="n">_created_at</span><span class="p">)</span>
<span class="k">if</span> <span class="n">_created_at</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">created_at</span> <span class="o">=</span> <span class="n">_created_at</span>
<span class="k">if</span> <span class="n">_updated_at</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">updated_at</span> <span class="o">=</span> <span class="n">_updated_at</span>
<span class="k">def</span> <span class="nf">_get_file_token</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">data</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">"name"</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">_name</span><span class="p">,</span>
<span class="s2">"ACL"</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">_acl</span><span class="p">,</span>
<span class="s2">"mime_type"</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">mime_type</span><span class="p">,</span>
<span class="s2">"metaData"</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">_metadata</span><span class="p">,</span>
<span class="p">}</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">key</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">data</span><span class="p">[</span><span class="s2">"key"</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">key</span>
<span class="n">response</span> <span class="o">=</span> <span class="n">client</span><span class="o">.</span><span class="n">post</span><span class="p">(</span><span class="s2">"/fileTokens"</span><span class="p">,</span> <span class="n">data</span><span class="p">)</span>
<span class="n">content</span> <span class="o">=</span> <span class="n">response</span><span class="o">.</span><span class="n">json</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">id</span> <span class="o">=</span> <span class="n">content</span><span class="p">[</span><span class="s2">"objectId"</span><span class="p">]</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_url</span> <span class="o">=</span> <span class="n">content</span><span class="p">[</span><span class="s2">"url"</span><span class="p">]</span>
<span class="bp">self</span><span class="o">.</span><span class="n">key</span> <span class="o">=</span> <span class="n">content</span><span class="p">[</span><span class="s2">"key"</span><span class="p">]</span>
<span class="k">return</span> <span class="n">content</span>
<div class="viewcode-block" id="File.fetch"><a class="viewcode-back" href="../../index.html#leancloud.File.fetch">[文档]</a> <span class="k">def</span> <span class="nf">fetch</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">response</span> <span class="o">=</span> <span class="n">client</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"/files/</span><span class="si">{0}</span><span class="s2">"</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">id</span><span class="p">))</span>
<span class="n">content</span> <span class="o">=</span> <span class="n">response</span><span class="o">.</span><span class="n">json</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_update_data</span><span class="p">(</span><span class="n">content</span><span class="p">)</span></div></div>
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