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build from commit 905ce2a6f60785d674c85eb09d5cd9067c1a45bd
2023-08-11 10:34:02 +00:00
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<h1>Source code for searx.engines.bing</h1><div class="highlight"><pre>
<span></span><span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="c1"># lint: pylint</span>
<span class="sd">&quot;&quot;&quot;This is the implementation of the Bing-WEB engine. Some of this</span>
<span class="sd">implementations are shared by other engines:</span>
<span class="sd">- :ref:`bing images engine`</span>
<span class="sd">- :ref:`bing news engine`</span>
<span class="sd">- :ref:`bing videos engine`</span>
<span class="sd">On the `preference page`_ Bing offers a lot of languages an regions (see section</span>
<span class="sd">&#39;Search results languages&#39; and &#39;Country/region&#39;). However, the abundant choice</span>
<span class="sd">does not correspond to reality, where Bing has a full-text indexer only for a</span>
<span class="sd">limited number of languages. By example: you can select a language like Māori</span>
<span class="sd">but you never get a result in this language.</span>
<span class="sd">What comes a bit closer to the truth are the `search-APIs`_ but they don`t seem</span>
<span class="sd">to be completely correct either (if you take a closer look you will find some</span>
<span class="sd">inaccuracies there too):</span>
<span class="sd">- :py:obj:`searx.engines.bing.bing_traits_url`</span>
<span class="sd">- :py:obj:`searx.engines.bing_videos.bing_traits_url`</span>
<span class="sd">- :py:obj:`searx.engines.bing_images.bing_traits_url`</span>
<span class="sd">- :py:obj:`searx.engines.bing_news.bing_traits_url`</span>
<span class="sd">.. _preference page: https://www.bing.com/account/general</span>
<span class="sd">.. _search-APIs: https://learn.microsoft.com/en-us/bing/search-apis/</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="c1"># pylint: disable=too-many-branches, invalid-name</span>
<span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">TYPE_CHECKING</span>
<span class="kn">import</span> <span class="nn">datetime</span>
<span class="kn">import</span> <span class="nn">re</span>
<span class="kn">import</span> <span class="nn">uuid</span>
<span class="kn">from</span> <span class="nn">urllib.parse</span> <span class="kn">import</span> <span class="n">urlencode</span>
<span class="kn">from</span> <span class="nn">lxml</span> <span class="kn">import</span> <span class="n">html</span>
<span class="kn">import</span> <span class="nn">babel</span>
<span class="kn">import</span> <span class="nn">babel.languages</span>
<span class="kn">from</span> <span class="nn">searx.utils</span> <span class="kn">import</span> <span class="n">eval_xpath</span><span class="p">,</span> <span class="n">extract_text</span><span class="p">,</span> <span class="n">eval_xpath_list</span><span class="p">,</span> <span class="n">eval_xpath_getindex</span>
<span class="kn">from</span> <span class="nn">searx.locales</span> <span class="kn">import</span> <span class="n">language_tag</span><span class="p">,</span> <span class="n">region_tag</span>
<span class="kn">from</span> <span class="nn">searx.enginelib.traits</span> <span class="kn">import</span> <span class="n">EngineTraits</span>
<span class="k">if</span> <span class="n">TYPE_CHECKING</span><span class="p">:</span>
<span class="kn">import</span> <span class="nn">logging</span>
<span class="n">logger</span><span class="p">:</span> <span class="n">logging</span><span class="o">.</span><span class="n">Logger</span>
<span class="n">traits</span><span class="p">:</span> <span class="n">EngineTraits</span>
<span class="n">about</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">&quot;website&quot;</span><span class="p">:</span> <span class="s1">&#39;https://www.bing.com&#39;</span><span class="p">,</span>
<span class="s2">&quot;wikidata_id&quot;</span><span class="p">:</span> <span class="s1">&#39;Q182496&#39;</span><span class="p">,</span>
<span class="s2">&quot;official_api_documentation&quot;</span><span class="p">:</span> <span class="s1">&#39;https://www.microsoft.com/en-us/bing/apis/bing-web-search-api&#39;</span><span class="p">,</span>
<span class="s2">&quot;use_official_api&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">&quot;require_api_key&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">&quot;results&quot;</span><span class="p">:</span> <span class="s1">&#39;HTML&#39;</span><span class="p">,</span>
<span class="p">}</span>
<span class="n">send_accept_language_header</span> <span class="o">=</span> <span class="kc">True</span>
<span class="sd">&quot;&quot;&quot;Bing tries to guess user&#39;s language and territory from the HTTP</span>
<span class="sd">Accept-Language. Optional the user can select a search-language (can be</span>
<span class="sd">different to the UI language) and a region (market code).&quot;&quot;&quot;</span>
<span class="c1"># engine dependent config</span>
<span class="n">categories</span> <span class="o">=</span> <span class="p">[</span><span class="s1">&#39;general&#39;</span><span class="p">,</span> <span class="s1">&#39;web&#39;</span><span class="p">]</span>
<span class="n">paging</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">time_range_support</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">safesearch</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">safesearch_types</span> <span class="o">=</span> <span class="p">{</span><span class="mi">2</span><span class="p">:</span> <span class="s1">&#39;STRICT&#39;</span><span class="p">,</span> <span class="mi">1</span><span class="p">:</span> <span class="s1">&#39;DEMOTE&#39;</span><span class="p">,</span> <span class="mi">0</span><span class="p">:</span> <span class="s1">&#39;OFF&#39;</span><span class="p">}</span> <span class="c1"># cookie: ADLT=STRICT</span>
<span class="n">base_url</span> <span class="o">=</span> <span class="s1">&#39;https://www.bing.com/search&#39;</span>
<span class="sd">&quot;&quot;&quot;Bing (Web) search URL&quot;&quot;&quot;</span>
<span class="n">bing_traits_url</span> <span class="o">=</span> <span class="s1">&#39;https://learn.microsoft.com/en-us/bing/search-apis/bing-web-search/reference/market-codes&#39;</span>
<span class="sd">&quot;&quot;&quot;Bing (Web) search API description&quot;&quot;&quot;</span>
<span class="k">def</span> <span class="nf">_get_offset_from_pageno</span><span class="p">(</span><span class="n">pageno</span><span class="p">):</span>
<span class="k">return</span> <span class="p">(</span><span class="n">pageno</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span> <span class="o">*</span> <span class="mi">10</span> <span class="o">+</span> <span class="mi">1</span>
<span class="k">def</span> <span class="nf">set_bing_cookies</span><span class="p">(</span><span class="n">params</span><span class="p">,</span> <span class="n">engine_language</span><span class="p">,</span> <span class="n">engine_region</span><span class="p">,</span> <span class="n">SID</span><span class="p">):</span>
<span class="c1"># set cookies</span>
<span class="c1"># -----------</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;cookies&#39;</span><span class="p">][</span><span class="s1">&#39;_EDGE_V&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;1&#39;</span>
<span class="c1"># _EDGE_S: F=1&amp;SID=3A5253BD6BCA609509B741876AF961CA&amp;mkt=zh-tw</span>
<span class="n">_EDGE_S</span> <span class="o">=</span> <span class="p">[</span>
<span class="s1">&#39;F=1&#39;</span><span class="p">,</span>
<span class="s1">&#39;SID=</span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="n">SID</span><span class="p">,</span>
<span class="s1">&#39;mkt=</span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="n">engine_region</span><span class="o">.</span><span class="n">lower</span><span class="p">(),</span>
<span class="s1">&#39;ui=</span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="n">engine_language</span><span class="o">.</span><span class="n">lower</span><span class="p">(),</span>
<span class="p">]</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;cookies&#39;</span><span class="p">][</span><span class="s1">&#39;_EDGE_S&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;&amp;&#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">_EDGE_S</span><span class="p">)</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s2">&quot;cookie _EDGE_S=</span><span class="si">%s</span><span class="s2">&quot;</span><span class="p">,</span> <span class="n">params</span><span class="p">[</span><span class="s1">&#39;cookies&#39;</span><span class="p">][</span><span class="s1">&#39;_EDGE_S&#39;</span><span class="p">])</span>
<span class="c1"># &quot;_EDGE_CD&quot;: &quot;m=zh-tw&quot;,</span>
<span class="n">_EDGE_CD</span> <span class="o">=</span> <span class="p">[</span> <span class="c1"># pylint: disable=invalid-name</span>
<span class="s1">&#39;m=</span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="n">engine_region</span><span class="o">.</span><span class="n">lower</span><span class="p">(),</span> <span class="c1"># search region: zh-cn</span>
<span class="s1">&#39;u=</span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="n">engine_language</span><span class="o">.</span><span class="n">lower</span><span class="p">(),</span> <span class="c1"># UI: en-us</span>
<span class="p">]</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;cookies&#39;</span><span class="p">][</span><span class="s1">&#39;_EDGE_CD&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;&amp;&#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">_EDGE_CD</span><span class="p">)</span> <span class="o">+</span> <span class="s1">&#39;;&#39;</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s2">&quot;cookie _EDGE_CD=</span><span class="si">%s</span><span class="s2">&quot;</span><span class="p">,</span> <span class="n">params</span><span class="p">[</span><span class="s1">&#39;cookies&#39;</span><span class="p">][</span><span class="s1">&#39;_EDGE_CD&#39;</span><span class="p">])</span>
<span class="n">SRCHHPGUSR</span> <span class="o">=</span> <span class="p">[</span> <span class="c1"># pylint: disable=invalid-name</span>
<span class="s1">&#39;SRCHLANG=</span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="n">engine_language</span><span class="p">,</span>
<span class="c1"># Trying to set ADLT cookie here seems not to have any effect, I assume</span>
<span class="c1"># there is some age verification by a cookie (and/or session ID) needed,</span>
<span class="c1"># to disable the SafeSearch.</span>
<span class="s1">&#39;ADLT=</span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="n">safesearch_types</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;safesearch&#39;</span><span class="p">],</span> <span class="s1">&#39;DEMOTE&#39;</span><span class="p">),</span>
<span class="p">]</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;cookies&#39;</span><span class="p">][</span><span class="s1">&#39;SRCHHPGUSR&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;&amp;&#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">SRCHHPGUSR</span><span class="p">)</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s2">&quot;cookie SRCHHPGUSR=</span><span class="si">%s</span><span class="s2">&quot;</span><span class="p">,</span> <span class="n">params</span><span class="p">[</span><span class="s1">&#39;cookies&#39;</span><span class="p">][</span><span class="s1">&#39;SRCHHPGUSR&#39;</span><span class="p">])</span>
<div class="viewcode-block" id="request"><a class="viewcode-back" href="../../../dev/engines/online/bing.html#searx.engines.bing.request">[docs]</a><span class="k">def</span> <span class="nf">request</span><span class="p">(</span><span class="n">query</span><span class="p">,</span> <span class="n">params</span><span class="p">):</span>
<span class="w"> </span><span class="sd">&quot;&quot;&quot;Assemble a Bing-Web request.&quot;&quot;&quot;</span>
<span class="n">engine_region</span> <span class="o">=</span> <span class="n">traits</span><span class="o">.</span><span class="n">get_region</span><span class="p">(</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;searxng_locale&#39;</span><span class="p">],</span> <span class="s1">&#39;en-US&#39;</span><span class="p">)</span>
<span class="n">engine_language</span> <span class="o">=</span> <span class="n">traits</span><span class="o">.</span><span class="n">get_language</span><span class="p">(</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;searxng_locale&#39;</span><span class="p">],</span> <span class="s1">&#39;en&#39;</span><span class="p">)</span>
<span class="n">SID</span> <span class="o">=</span> <span class="n">uuid</span><span class="o">.</span><span class="n">uuid1</span><span class="p">()</span><span class="o">.</span><span class="n">hex</span><span class="o">.</span><span class="n">upper</span><span class="p">()</span>
<span class="n">CVID</span> <span class="o">=</span> <span class="n">uuid</span><span class="o">.</span><span class="n">uuid1</span><span class="p">()</span><span class="o">.</span><span class="n">hex</span><span class="o">.</span><span class="n">upper</span><span class="p">()</span>
<span class="n">set_bing_cookies</span><span class="p">(</span><span class="n">params</span><span class="p">,</span> <span class="n">engine_language</span><span class="p">,</span> <span class="n">engine_region</span><span class="p">,</span> <span class="n">SID</span><span class="p">)</span>
<span class="c1"># build URL query</span>
<span class="c1"># ---------------</span>
<span class="c1"># query term</span>
<span class="n">page</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">params</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;pageno&#39;</span><span class="p">,</span> <span class="mi">1</span><span class="p">))</span>
<span class="n">query_params</span> <span class="o">=</span> <span class="p">{</span>
<span class="c1"># fmt: off</span>
<span class="s1">&#39;q&#39;</span><span class="p">:</span> <span class="n">query</span><span class="p">,</span>
<span class="s1">&#39;pq&#39;</span><span class="p">:</span> <span class="n">query</span><span class="p">,</span>
<span class="s1">&#39;cvid&#39;</span><span class="p">:</span> <span class="n">CVID</span><span class="p">,</span>
<span class="s1">&#39;qs&#39;</span><span class="p">:</span> <span class="s1">&#39;n&#39;</span><span class="p">,</span>
<span class="s1">&#39;sp&#39;</span><span class="p">:</span> <span class="s1">&#39;-1&#39;</span>
<span class="c1"># fmt: on</span>
<span class="p">}</span>
<span class="c1"># page</span>
<span class="k">if</span> <span class="n">page</span> <span class="o">&gt;</span> <span class="mi">1</span><span class="p">:</span>
<span class="n">referer</span> <span class="o">=</span> <span class="n">base_url</span> <span class="o">+</span> <span class="s1">&#39;?&#39;</span> <span class="o">+</span> <span class="n">urlencode</span><span class="p">(</span><span class="n">query_params</span><span class="p">)</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;headers&#39;</span><span class="p">][</span><span class="s1">&#39;Referer&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">referer</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s2">&quot;headers.Referer --&gt; </span><span class="si">%s</span><span class="s2">&quot;</span><span class="p">,</span> <span class="n">referer</span><span class="p">)</span>
<span class="n">query_params</span><span class="p">[</span><span class="s1">&#39;first&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">_get_offset_from_pageno</span><span class="p">(</span><span class="n">page</span><span class="p">)</span>
<span class="k">if</span> <span class="n">page</span> <span class="o">==</span> <span class="mi">2</span><span class="p">:</span>
<span class="n">query_params</span><span class="p">[</span><span class="s1">&#39;FORM&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;PERE&#39;</span>
<span class="k">elif</span> <span class="n">page</span> <span class="o">&gt;</span> <span class="mi">2</span><span class="p">:</span>
<span class="n">query_params</span><span class="p">[</span><span class="s1">&#39;FORM&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;PERE</span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="p">(</span><span class="n">page</span> <span class="o">-</span> <span class="mi">2</span><span class="p">)</span>
<span class="n">filters</span> <span class="o">=</span> <span class="s1">&#39;&#39;</span>
<span class="k">if</span> <span class="n">params</span><span class="p">[</span><span class="s1">&#39;time_range&#39;</span><span class="p">]:</span>
<span class="n">query_params</span><span class="p">[</span><span class="s1">&#39;filt&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;custom&#39;</span>
<span class="k">if</span> <span class="n">params</span><span class="p">[</span><span class="s1">&#39;time_range&#39;</span><span class="p">]</span> <span class="o">==</span> <span class="s1">&#39;day&#39;</span><span class="p">:</span>
<span class="n">filters</span> <span class="o">=</span> <span class="s1">&#39;ex1:&quot;ez1&quot;&#39;</span>
<span class="k">elif</span> <span class="n">params</span><span class="p">[</span><span class="s1">&#39;time_range&#39;</span><span class="p">]</span> <span class="o">==</span> <span class="s1">&#39;week&#39;</span><span class="p">:</span>
<span class="n">filters</span> <span class="o">=</span> <span class="s1">&#39;ex1:&quot;ez2&quot;&#39;</span>
<span class="k">elif</span> <span class="n">params</span><span class="p">[</span><span class="s1">&#39;time_range&#39;</span><span class="p">]</span> <span class="o">==</span> <span class="s1">&#39;month&#39;</span><span class="p">:</span>
<span class="n">filters</span> <span class="o">=</span> <span class="s1">&#39;ex1:&quot;ez3&quot;&#39;</span>
<span class="k">elif</span> <span class="n">params</span><span class="p">[</span><span class="s1">&#39;time_range&#39;</span><span class="p">]</span> <span class="o">==</span> <span class="s1">&#39;year&#39;</span><span class="p">:</span>
<span class="n">epoch_1970</span> <span class="o">=</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">(</span><span class="mi">1970</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
<span class="n">today_no</span> <span class="o">=</span> <span class="p">(</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="o">.</span><span class="n">today</span><span class="p">()</span> <span class="o">-</span> <span class="n">epoch_1970</span><span class="p">)</span><span class="o">.</span><span class="n">days</span>
<span class="n">filters</span> <span class="o">=</span> <span class="s1">&#39;ex1:&quot;ez5_</span><span class="si">%s</span><span class="s1">_</span><span class="si">%s</span><span class="s1">&quot;&#39;</span> <span class="o">%</span> <span class="p">(</span><span class="n">today_no</span> <span class="o">-</span> <span class="mi">365</span><span class="p">,</span> <span class="n">today_no</span><span class="p">)</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;url&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">base_url</span> <span class="o">+</span> <span class="s1">&#39;?&#39;</span> <span class="o">+</span> <span class="n">urlencode</span><span class="p">(</span><span class="n">query_params</span><span class="p">)</span>
<span class="k">if</span> <span class="n">filters</span><span class="p">:</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;url&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">params</span><span class="p">[</span><span class="s1">&#39;url&#39;</span><span class="p">]</span> <span class="o">+</span> <span class="s1">&#39;&amp;filters=&#39;</span> <span class="o">+</span> <span class="n">filters</span>
<span class="k">return</span> <span class="n">params</span></div>
<span class="k">def</span> <span class="nf">response</span><span class="p">(</span><span class="n">resp</span><span class="p">):</span>
<span class="c1"># pylint: disable=too-many-locals,import-outside-toplevel</span>
<span class="kn">from</span> <span class="nn">searx.network</span> <span class="kn">import</span> <span class="n">Request</span><span class="p">,</span> <span class="n">multi_requests</span> <span class="c1"># see https://github.com/searxng/searxng/issues/762</span>
<span class="n">results</span> <span class="o">=</span> <span class="p">[]</span>
<span class="n">result_len</span> <span class="o">=</span> <span class="mi">0</span>
<span class="n">dom</span> <span class="o">=</span> <span class="n">html</span><span class="o">.</span><span class="n">fromstring</span><span class="p">(</span><span class="n">resp</span><span class="o">.</span><span class="n">text</span><span class="p">)</span>
<span class="c1"># parse results again if nothing is found yet</span>
<span class="n">url_to_resolve</span> <span class="o">=</span> <span class="p">[]</span>
<span class="n">url_to_resolve_index</span> <span class="o">=</span> <span class="p">[]</span>
<span class="n">i</span> <span class="o">=</span> <span class="mi">0</span>
<span class="k">for</span> <span class="n">result</span> <span class="ow">in</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="s1">&#39;//ol[@id=&quot;b_results&quot;]/li[contains(@class, &quot;b_algo&quot;)]&#39;</span><span class="p">):</span>
<span class="n">link</span> <span class="o">=</span> <span class="n">eval_xpath_getindex</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="s1">&#39;.//h2/a&#39;</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
<span class="k">if</span> <span class="n">link</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">continue</span>
<span class="n">url</span> <span class="o">=</span> <span class="n">link</span><span class="o">.</span><span class="n">attrib</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;href&#39;</span><span class="p">)</span>
<span class="n">title</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">link</span><span class="p">)</span>
<span class="n">content</span> <span class="o">=</span> <span class="n">eval_xpath</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="s1">&#39;(.//p)[1]&#39;</span><span class="p">)</span>
<span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="n">content</span><span class="p">:</span>
<span class="c1"># Make sure that the element is free of &lt;a href&gt; links</span>
<span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">p</span><span class="o">.</span><span class="n">xpath</span><span class="p">(</span><span class="s1">&#39;.//a&#39;</span><span class="p">):</span>
<span class="n">e</span><span class="o">.</span><span class="n">getparent</span><span class="p">()</span><span class="o">.</span><span class="n">remove</span><span class="p">(</span><span class="n">e</span><span class="p">)</span>
<span class="n">content</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">content</span><span class="p">)</span>
<span class="c1"># get the real URL either using the URL shown to user or following the Bing URL</span>
<span class="k">if</span> <span class="n">url</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s1">&#39;https://www.bing.com/ck/a?&#39;</span><span class="p">):</span>
<span class="n">url_cite</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">eval_xpath</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="s1">&#39;.//div[@class=&quot;b_attribution&quot;]/cite&#39;</span><span class="p">))</span>
<span class="c1"># Bing can shorten the URL either at the end or in the middle of the string</span>
<span class="k">if</span> <span class="p">(</span>
<span class="n">url_cite</span>
<span class="ow">and</span> <span class="n">url_cite</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s1">&#39;https://&#39;</span><span class="p">)</span>
<span class="ow">and</span> <span class="s1">&#39;…&#39;</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">url_cite</span>
<span class="ow">and</span> <span class="s1">&#39;...&#39;</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">url_cite</span>
<span class="ow">and</span> <span class="s1">&#39;›&#39;</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">url_cite</span>
<span class="p">):</span>
<span class="c1"># no need for an additional HTTP request</span>
<span class="n">url</span> <span class="o">=</span> <span class="n">url_cite</span>
<span class="k">else</span><span class="p">:</span>
<span class="c1"># resolve the URL with an additional HTTP request</span>
<span class="n">url_to_resolve</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">url</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;&amp;ntb=1&#39;</span><span class="p">,</span> <span class="s1">&#39;&amp;ntb=F&#39;</span><span class="p">))</span>
<span class="n">url_to_resolve_index</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
<span class="n">url</span> <span class="o">=</span> <span class="kc">None</span> <span class="c1"># remove the result if the HTTP Bing redirect raise an exception</span>
<span class="c1"># append result</span>
<span class="n">results</span><span class="o">.</span><span class="n">append</span><span class="p">({</span><span class="s1">&#39;url&#39;</span><span class="p">:</span> <span class="n">url</span><span class="p">,</span> <span class="s1">&#39;title&#39;</span><span class="p">:</span> <span class="n">title</span><span class="p">,</span> <span class="s1">&#39;content&#39;</span><span class="p">:</span> <span class="n">content</span><span class="p">})</span>
<span class="c1"># increment result pointer for the next iteration in this loop</span>
<span class="n">i</span> <span class="o">+=</span> <span class="mi">1</span>
<span class="c1"># resolve all Bing redirections in parallel</span>
<span class="n">request_list</span> <span class="o">=</span> <span class="p">[</span>
<span class="n">Request</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">u</span><span class="p">,</span> <span class="n">allow_redirects</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">headers</span><span class="o">=</span><span class="n">resp</span><span class="o">.</span><span class="n">search_params</span><span class="p">[</span><span class="s1">&#39;headers&#39;</span><span class="p">])</span> <span class="k">for</span> <span class="n">u</span> <span class="ow">in</span> <span class="n">url_to_resolve</span>
<span class="p">]</span>
<span class="n">response_list</span> <span class="o">=</span> <span class="n">multi_requests</span><span class="p">(</span><span class="n">request_list</span><span class="p">)</span>
<span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="n">redirect_response</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">response_list</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">redirect_response</span><span class="p">,</span> <span class="ne">Exception</span><span class="p">):</span>
<span class="n">results</span><span class="p">[</span><span class="n">url_to_resolve_index</span><span class="p">[</span><span class="n">i</span><span class="p">]][</span><span class="s1">&#39;url&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">redirect_response</span><span class="o">.</span><span class="n">headers</span><span class="p">[</span><span class="s1">&#39;location&#39;</span><span class="p">]</span>
<span class="c1"># get number_of_results</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">result_len_container</span> <span class="o">=</span> <span class="s2">&quot;&quot;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">eval_xpath</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="s1">&#39;//span[@class=&quot;sb_count&quot;]//text()&#39;</span><span class="p">))</span>
<span class="k">if</span> <span class="s2">&quot;-&quot;</span> <span class="ow">in</span> <span class="n">result_len_container</span><span class="p">:</span>
<span class="c1"># Remove the part &quot;from-to&quot; for paginated request ...</span>
<span class="n">result_len_container</span> <span class="o">=</span> <span class="n">result_len_container</span><span class="p">[</span><span class="n">result_len_container</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="s2">&quot;-&quot;</span><span class="p">)</span> <span class="o">*</span> <span class="mi">2</span> <span class="o">+</span> <span class="mi">2</span> <span class="p">:]</span>
<span class="n">result_len_container</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">sub</span><span class="p">(</span><span class="s1">&#39;[^0-9]&#39;</span><span class="p">,</span> <span class="s1">&#39;&#39;</span><span class="p">,</span> <span class="n">result_len_container</span><span class="p">)</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">result_len_container</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">:</span>
<span class="n">result_len</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">result_len_container</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">Exception</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span> <span class="c1"># pylint: disable=broad-except</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s1">&#39;result error :</span><span class="se">\n</span><span class="si">%s</span><span class="s1">&#39;</span><span class="p">,</span> <span class="n">e</span><span class="p">)</span>
<span class="k">if</span> <span class="n">result_len</span> <span class="ow">and</span> <span class="n">_get_offset_from_pageno</span><span class="p">(</span><span class="n">resp</span><span class="o">.</span><span class="n">search_params</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;pageno&quot;</span><span class="p">,</span> <span class="mi">0</span><span class="p">))</span> <span class="o">&gt;</span> <span class="n">result_len</span><span class="p">:</span>
<span class="k">return</span> <span class="p">[]</span>
<span class="n">results</span><span class="o">.</span><span class="n">append</span><span class="p">({</span><span class="s1">&#39;number_of_results&#39;</span><span class="p">:</span> <span class="n">result_len</span><span class="p">})</span>
<span class="k">return</span> <span class="n">results</span>
<div class="viewcode-block" id="fetch_traits"><a class="viewcode-back" href="../../../dev/engines/online/bing.html#searx.engines.bing.fetch_traits">[docs]</a><span class="k">def</span> <span class="nf">fetch_traits</span><span class="p">(</span><span class="n">engine_traits</span><span class="p">:</span> <span class="n">EngineTraits</span><span class="p">):</span>
<span class="w"> </span><span class="sd">&quot;&quot;&quot;Fetch languages and regions from Bing-Web.&quot;&quot;&quot;</span>
<span class="n">xpath_market_codes</span> <span class="o">=</span> <span class="s1">&#39;//table[1]/tbody/tr/td[3]&#39;</span>
<span class="c1"># xpath_country_codes = &#39;//table[2]/tbody/tr/td[2]&#39;</span>
<span class="n">xpath_language_codes</span> <span class="o">=</span> <span class="s1">&#39;//table[3]/tbody/tr/td[2]&#39;</span>
<span class="n">_fetch_traits</span><span class="p">(</span><span class="n">engine_traits</span><span class="p">,</span> <span class="n">bing_traits_url</span><span class="p">,</span> <span class="n">xpath_language_codes</span><span class="p">,</span> <span class="n">xpath_market_codes</span><span class="p">)</span></div>
<span class="k">def</span> <span class="nf">_fetch_traits</span><span class="p">(</span><span class="n">engine_traits</span><span class="p">:</span> <span class="n">EngineTraits</span><span class="p">,</span> <span class="n">url</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">xpath_language_codes</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">xpath_market_codes</span><span class="p">:</span> <span class="nb">str</span><span class="p">):</span>
<span class="c1"># pylint: disable=too-many-locals,import-outside-toplevel</span>
<span class="kn">from</span> <span class="nn">searx.network</span> <span class="kn">import</span> <span class="n">get</span> <span class="c1"># see https://github.com/searxng/searxng/issues/762</span>
<span class="c1"># insert alias to map from a language (zh) to a language + script (zh_Hans)</span>
<span class="n">engine_traits</span><span class="o">.</span><span class="n">languages</span><span class="p">[</span><span class="s1">&#39;zh&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;zh-hans&#39;</span>
<span class="n">resp</span> <span class="o">=</span> <span class="n">get</span><span class="p">(</span><span class="n">url</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">resp</span><span class="o">.</span><span class="n">ok</span><span class="p">:</span> <span class="c1"># type: ignore</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;ERROR: response from peertube is not OK.&quot;</span><span class="p">)</span>
<span class="n">dom</span> <span class="o">=</span> <span class="n">html</span><span class="o">.</span><span class="n">fromstring</span><span class="p">(</span><span class="n">resp</span><span class="o">.</span><span class="n">text</span><span class="p">)</span> <span class="c1"># type: ignore</span>
<span class="n">map_lang</span> <span class="o">=</span> <span class="p">{</span><span class="s1">&#39;jp&#39;</span><span class="p">:</span> <span class="s1">&#39;ja&#39;</span><span class="p">}</span>
<span class="k">for</span> <span class="n">td</span> <span class="ow">in</span> <span class="n">eval_xpath</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="n">xpath_language_codes</span><span class="p">):</span>
<span class="n">eng_lang</span> <span class="o">=</span> <span class="n">td</span><span class="o">.</span><span class="n">text</span>
<span class="k">if</span> <span class="n">eng_lang</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">&#39;en-gb&#39;</span><span class="p">,</span> <span class="s1">&#39;pt-br&#39;</span><span class="p">):</span>
<span class="c1"># language &#39;en&#39; is already in the list and a language &#39;en-gb&#39; can&#39;t</span>
<span class="c1"># be handled in SearXNG, same with pt-br which is covered by pt-pt.</span>
<span class="k">continue</span>
<span class="n">babel_lang</span> <span class="o">=</span> <span class="n">map_lang</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">eng_lang</span><span class="p">,</span> <span class="n">eng_lang</span><span class="p">)</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;-&#39;</span><span class="p">,</span> <span class="s1">&#39;_&#39;</span><span class="p">)</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">sxng_tag</span> <span class="o">=</span> <span class="n">language_tag</span><span class="p">(</span><span class="n">babel</span><span class="o">.</span><span class="n">Locale</span><span class="o">.</span><span class="n">parse</span><span class="p">(</span><span class="n">babel_lang</span><span class="p">))</span>
<span class="k">except</span> <span class="n">babel</span><span class="o">.</span><span class="n">UnknownLocaleError</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;ERROR: language (</span><span class="si">%s</span><span class="s2">) is unknown by babel&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">eng_lang</span><span class="p">))</span>
<span class="k">continue</span>
<span class="n">conflict</span> <span class="o">=</span> <span class="n">engine_traits</span><span class="o">.</span><span class="n">languages</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">sxng_tag</span><span class="p">)</span>
<span class="k">if</span> <span class="n">conflict</span><span class="p">:</span>
<span class="k">if</span> <span class="n">conflict</span> <span class="o">!=</span> <span class="n">eng_lang</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;CONFLICT: babel </span><span class="si">%s</span><span class="s2"> --&gt; </span><span class="si">%s</span><span class="s2">, </span><span class="si">%s</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">sxng_tag</span><span class="p">,</span> <span class="n">conflict</span><span class="p">,</span> <span class="n">eng_lang</span><span class="p">))</span>
<span class="k">continue</span>
<span class="n">engine_traits</span><span class="o">.</span><span class="n">languages</span><span class="p">[</span><span class="n">sxng_tag</span><span class="p">]</span> <span class="o">=</span> <span class="n">eng_lang</span>
<span class="n">map_region</span> <span class="o">=</span> <span class="p">{</span>
<span class="s1">&#39;en-ID&#39;</span><span class="p">:</span> <span class="s1">&#39;id_ID&#39;</span><span class="p">,</span>
<span class="s1">&#39;no-NO&#39;</span><span class="p">:</span> <span class="s1">&#39;nb_NO&#39;</span><span class="p">,</span>
<span class="p">}</span>
<span class="k">for</span> <span class="n">td</span> <span class="ow">in</span> <span class="n">eval_xpath</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="n">xpath_market_codes</span><span class="p">):</span>
<span class="n">eng_region</span> <span class="o">=</span> <span class="n">td</span><span class="o">.</span><span class="n">text</span>
<span class="n">babel_region</span> <span class="o">=</span> <span class="n">map_region</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">eng_region</span><span class="p">,</span> <span class="n">eng_region</span><span class="p">)</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;-&#39;</span><span class="p">,</span> <span class="s1">&#39;_&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">eng_region</span> <span class="o">==</span> <span class="s1">&#39;en-WW&#39;</span><span class="p">:</span>
<span class="n">engine_traits</span><span class="o">.</span><span class="n">all_locale</span> <span class="o">=</span> <span class="n">eng_region</span>
<span class="k">continue</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">sxng_tag</span> <span class="o">=</span> <span class="n">region_tag</span><span class="p">(</span><span class="n">babel</span><span class="o">.</span><span class="n">Locale</span><span class="o">.</span><span class="n">parse</span><span class="p">(</span><span class="n">babel_region</span><span class="p">))</span>
<span class="k">except</span> <span class="n">babel</span><span class="o">.</span><span class="n">UnknownLocaleError</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;ERROR: region (</span><span class="si">%s</span><span class="s2">) is unknown by babel&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">eng_region</span><span class="p">))</span>
<span class="k">continue</span>
<span class="n">conflict</span> <span class="o">=</span> <span class="n">engine_traits</span><span class="o">.</span><span class="n">regions</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">sxng_tag</span><span class="p">)</span>
<span class="k">if</span> <span class="n">conflict</span><span class="p">:</span>
<span class="k">if</span> <span class="n">conflict</span> <span class="o">!=</span> <span class="n">eng_region</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;CONFLICT: babel </span><span class="si">%s</span><span class="s2"> --&gt; </span><span class="si">%s</span><span class="s2">, </span><span class="si">%s</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">sxng_tag</span><span class="p">,</span> <span class="n">conflict</span><span class="p">,</span> <span class="n">eng_region</span><span class="p">))</span>
<span class="k">continue</span>
<span class="n">engine_traits</span><span class="o">.</span><span class="n">regions</span><span class="p">[</span><span class="n">sxng_tag</span><span class="p">]</span> <span class="o">=</span> <span class="n">eng_region</span>
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