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<!DOCTYPE html>
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<title>nextcode.utils — nextcode-python-sdk 0.2.10 documentation</title>
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<h1>Source code for nextcode.utils</h1><div class="highlight"><pre>
<span></span><span class="sd">"""</span>
<span class="sd">utils</span>
<span class="sd">~~~~~~~~~~</span>
<span class="sd">Various utilities for nextcode-sdk functionality.</span>
<span class="sd">"""</span>
<span class="kn">import</span> <span class="nn">jwt</span>
<span class="kn">import</span> <span class="nn">logging</span>
<span class="kn">from</span> <span class="nn">urllib.parse</span> <span class="k">import</span> <span class="n">urlsplit</span>
<span class="kn">import</span> <span class="nn">requests</span>
<span class="kn">from</span> <span class="nn">requests</span> <span class="k">import</span> <span class="n">codes</span>
<span class="kn">from</span> <span class="nn">.exceptions</span> <span class="k">import</span> <span class="n">ServerError</span><span class="p">,</span> <span class="n">InvalidToken</span>
<span class="n">log</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="k">def</span> <span class="nf">decode_token</span><span class="p">(</span><span class="n">token</span><span class="p">):</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">decoded_token</span> <span class="o">=</span> <span class="n">jwt</span><span class="o">.</span><span class="n">decode</span><span class="p">(</span><span class="n">token</span><span class="p">,</span> <span class="n">algorithms</span><span class="o">=</span><span class="p">[</span><span class="s2">"RS256"</span><span class="p">],</span> <span class="n">verify</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
<span class="k">return</span> <span class="n">decoded_token</span>
<span class="k">except</span> <span class="p">(</span><span class="ne">KeyError</span><span class="p">,</span> <span class="n">jwt</span><span class="o">.</span><span class="n">InvalidTokenError</span><span class="p">):</span>
<span class="k">raise</span> <span class="n">InvalidToken</span><span class="p">(</span><span class="s2">"Token could not be decoded"</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">check_resp_error</span><span class="p">(</span><span class="n">resp</span><span class="p">):</span>
<span class="n">response_json</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">resp</span><span class="o">.</span><span class="n">raise_for_status</span><span class="p">()</span>
<span class="k">except</span> <span class="ne">Exception</span><span class="p">:</span>
<span class="n">desc</span> <span class="o">=</span> <span class="n">resp</span><span class="o">.</span><span class="n">text</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">response_json</span> <span class="o">=</span> <span class="n">resp</span><span class="o">.</span><span class="n">json</span><span class="p">()</span>
<span class="n">desc</span> <span class="o">=</span> <span class="n">response_json</span><span class="p">[</span><span class="s2">"error"</span><span class="p">][</span><span class="s2">"description"</span><span class="p">]</span>
<span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="n">response_json</span><span class="p">)</span>
<span class="k">if</span> <span class="s2">"errors"</span> <span class="ow">in</span> <span class="n">response_json</span><span class="p">[</span><span class="s2">"error"</span><span class="p">]:</span>
<span class="n">desc</span> <span class="o">+=</span> <span class="s2">" (</span><span class="si">%s</span><span class="s2">)"</span> <span class="o">%</span> <span class="p">(</span><span class="n">response_json</span><span class="p">[</span><span class="s2">"error"</span><span class="p">][</span><span class="s2">"errors"</span><span class="p">])</span>
<span class="k">except</span> <span class="ne">Exception</span><span class="p">:</span>
<span class="k">pass</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">desc</span><span class="p">:</span>
<span class="n">desc</span> <span class="o">=</span> <span class="s2">"Status code </span><span class="si">%s</span><span class="s2"> received (</span><span class="si">%s</span><span class="s2">)"</span> <span class="o">%</span> <span class="p">(</span><span class="n">resp</span><span class="o">.</span><span class="n">status_code</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="k">else</span><span class="p">:</span>
<span class="n">desc</span> <span class="o">+=</span> <span class="s2">" (code </span><span class="si">%s</span><span class="s2">)"</span> <span class="o">%</span> <span class="n">resp</span><span class="o">.</span><span class="n">status_code</span>
<span class="k">if</span> <span class="n">resp</span><span class="o">.</span><span class="n">status_code</span> <span class="o">>=</span> <span class="mi">500</span><span class="p">:</span>
<span class="n">desc</span> <span class="o">=</span> <span class="s2">"Server error in call to </span><span class="si">%s</span><span class="s2">"</span> <span class="o">%</span> <span class="n">resp</span><span class="o">.</span><span class="n">url</span>
<span class="n">desc</span> <span class="o">+=</span> <span class="s2">" - Response headers: </span><span class="si">%s</span><span class="s2">"</span> <span class="o">%</span> <span class="n">resp</span><span class="o">.</span><span class="n">headers</span>
<span class="n">desc</span> <span class="o">+=</span> <span class="s2">" - Response body: </span><span class="si">%s</span><span class="s2">"</span> <span class="o">%</span> <span class="n">resp</span><span class="o">.</span><span class="n">text</span>
<span class="n">log</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="n">desc</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s2">"Server error in call to </span><span class="si">%s</span><span class="s2">"</span><span class="p">,</span> <span class="n">resp</span><span class="o">.</span><span class="n">url</span><span class="p">)</span>
<span class="n">error</span> <span class="o">=</span> <span class="n">ServerError</span><span class="p">(</span><span class="n">desc</span><span class="p">,</span> <span class="n">url</span><span class="o">=</span><span class="n">resp</span><span class="o">.</span><span class="n">url</span><span class="p">,</span> <span class="n">response</span><span class="o">=</span><span class="n">response_json</span><span class="p">)</span>
<span class="k">raise</span> <span class="n">error</span> <span class="kn">from</span> <span class="nn">None</span>
<span class="k">def</span> <span class="nf">root_url_from_api_key</span><span class="p">(</span><span class="n">api_key</span><span class="p">):</span>
<span class="n">payload</span> <span class="o">=</span> <span class="n">decode_token</span><span class="p">(</span><span class="n">api_key</span><span class="p">)</span>
<span class="n">parts</span> <span class="o">=</span> <span class="n">urlsplit</span><span class="p">(</span><span class="n">payload</span><span class="p">[</span><span class="s2">"iss"</span><span class="p">])</span>
<span class="n">root_url</span> <span class="o">=</span> <span class="s2">"</span><span class="si">{scheme}</span><span class="s2">://</span><span class="si">{netloc}</span><span class="s2">"</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">scheme</span><span class="o">=</span><span class="n">parts</span><span class="o">.</span><span class="n">scheme</span><span class="p">,</span> <span class="n">netloc</span><span class="o">=</span><span class="n">parts</span><span class="o">.</span><span class="n">netloc</span><span class="p">)</span>
<span class="k">return</span> <span class="n">root_url</span>
<div class="viewcode-block" id="get_access_token"><a class="viewcode-back" href="../../api.html#nextcode.utils.get_access_token">[docs]</a><span class="k">def</span> <span class="nf">get_access_token</span><span class="p">(</span><span class="n">api_key</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> """</span>
<span class="n">payload</span> <span class="o">=</span> <span class="n">decode_token</span><span class="p">(</span><span class="n">api_key</span><span class="p">)</span>
<span class="n">client_id</span> <span class="o">=</span> <span class="n">payload</span><span class="p">[</span><span class="s2">"azp"</span><span class="p">]</span>
<span class="n">body</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">"grant_type"</span><span class="p">:</span> <span class="s2">"refresh_token"</span><span class="p">,</span>
<span class="s2">"client_id"</span><span class="p">:</span> <span class="n">client_id</span><span class="p">,</span>
<span class="s2">"refresh_token"</span><span class="p">:</span> <span class="n">api_key</span><span class="p">,</span>
<span class="s2">"username"</span><span class="p">:</span> <span class="s2">"dummy_user"</span><span class="p">,</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="s2">"application/x-www-form-urlencoded"</span><span class="p">}</span>
<span class="n">token_endpoint</span> <span class="o">=</span> <span class="s2">"</span><span class="si">{}</span><span class="s2">/protocol/openid-connect/token"</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">payload</span><span class="p">[</span><span class="s2">"iss"</span><span class="p">])</span>
<span class="c1"># Call the auth server</span>
<span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s2">"Authenticating with </span><span class="si">%s</span><span class="s2">"</span><span class="p">,</span> <span class="n">token_endpoint</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">token_endpoint</span><span class="p">,</span> <span class="n">data</span><span class="o">=</span><span class="n">body</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="k">if</span> <span class="p">(</span>
<span class="n">response</span><span class="o">.</span><span class="n">status_code</span> <span class="o">==</span> <span class="n">codes</span><span class="o">.</span><span class="n">bad_request</span>
<span class="ow">and</span> <span class="s2">"Refresh token expired"</span> <span class="ow">in</span> <span class="n">response</span><span class="o">.</span><span class="n">text</span>
<span class="p">):</span>
<span class="k">raise</span> <span class="n">InvalidToken</span><span class="p">(</span><span class="s2">"Refresh token has expired"</span><span class="p">)</span>
<span class="k">elif</span> <span class="n">response</span><span class="o">.</span><span class="n">status_code</span> <span class="o">>=</span> <span class="n">codes</span><span class="o">.</span><span class="n">bad_request</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="k">if</span> <span class="n">response</span><span class="o">.</span><span class="n">json</span><span class="p">():</span>
<span class="k">raise</span> <span class="n">InvalidToken</span><span class="p">(</span><span class="n">response</span><span class="o">.</span><span class="n">json</span><span class="p">()</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"error_description"</span><span class="p">))</span>
<span class="k">except</span> <span class="ne">Exception</span><span class="p">:</span>
<span class="k">pass</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">response</span><span class="o">.</span><span class="n">raise_for_status</span><span class="p">()</span>
<span class="k">except</span> <span class="ne">Exception</span><span class="p">:</span>
<span class="n">log</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s2">"Body: </span><span class="si">%s</span><span class="s2">"</span> <span class="o">%</span> <span class="n">body</span><span class="p">)</span>
<span class="k">raise</span> <span class="n">InvalidToken</span><span class="p">(</span>
<span class="s2">"Error authenticating with </span><span class="si">%s</span><span class="s2">: </span><span class="si">%s</span><span class="s2">"</span> <span class="o">%</span> <span class="p">(</span><span class="n">token_endpoint</span><span class="p">,</span> <span class="n">response</span><span class="o">.</span><span class="n">text</span><span class="p">)</span>
<span class="p">)</span>
<span class="k">return</span> <span class="n">response</span><span class="o">.</span><span class="n">json</span><span class="p">()[</span><span class="s2">"access_token"</span><span class="p">]</span></div>
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