mirror of
https://github.com/joomla-extensions/patchtester.git
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327 lines
8.5 KiB
PHP
327 lines
8.5 KiB
PHP
<?php
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/**
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* Patch testing component for the Joomla! CMS
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*
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* @copyright Copyright (C) 2011 - 2012 Ian MacLennan, Copyright (C) 2013 - 2017 Open Source Matters, Inc. All rights reserved.
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* @license GNU General Public License version 2 or later
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*/
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namespace PatchTester\GitHub;
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use Joomla\Registry\Registry;
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/**
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* Helper class for interacting with the GitHub API.
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*
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* @since 3.0.0
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*/
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class GitHub
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{
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/**
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* Options for the connector.
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*
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* @var Registry
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* @since 3.0.0
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*/
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protected $options;
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/**
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* The HTTP client object to use in sending HTTP requests.
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*
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* @var \JHttp
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* @since 3.0.0
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*/
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protected $client;
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/**
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* Constructor.
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*
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* @param Registry $options Connector options.
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* @param \JHttp $client The HTTP client object.
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*
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* @since 3.0.0
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*/
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public function __construct(Registry $options = null, \JHttp $client = null)
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{
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$this->options = $options ?: new Registry;
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$this->client = $client ?: \JHttpFactory::getHttp($options);
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}
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/**
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* Build and return a full request URL.
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*
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* This method will add appropriate pagination details and basic authentication credentials if necessary
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* and also prepend the API url to have a complete URL for the request.
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*
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* @param string $path URL to inflect
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* @param integer $page Page to request
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* @param integer $limit Number of results to return per page
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*
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* @return string The request URL.
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*
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* @since 3.0.0
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*/
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protected function fetchUrl($path, $page = 0, $limit = 0)
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{
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// Get a new JUri object fousing the api url and given path.
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$uri = new \JUri($this->options->get('api.url') . $path);
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// Only apply basic authentication if an access token is not set
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if ($this->options->get('gh.token', false) === false)
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{
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// Use basic authentication
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if ($this->options->get('api.username', false))
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{
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$username = $this->options->get('api.username');
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$username = str_replace('@', '%40', $username);
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$uri->setUser($username);
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}
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if ($this->options->get('api.password', false))
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{
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$password = $this->options->get('api.password');
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$password = str_replace('@', '%40', $password);
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$uri->setPass($password);
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}
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}
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// If we have a defined page number add it to the JUri object.
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if ($page > 0)
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{
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$uri->setVar('page', (int) $page);
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}
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// If we have a defined items per page add it to the JUri object.
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if ($limit > 0)
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{
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$uri->setVar('per_page', (int) $limit);
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}
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return (string) $uri;
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}
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/**
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* Get the HTTP client for this connector.
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*
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* @return \JHttp
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*
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* @since 3.0.0
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*/
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public function getClient()
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{
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return $this->client;
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}
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/**
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* Get the diff for a pull request.
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*
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* @param string $user The name of the owner of the GitHub repository.
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* @param string $repo The name of the GitHub repository.
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* @param integer $pullId The pull request number.
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*
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* @return \JHttpResponse
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*
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* @since 3.0.0
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*/
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public function getDiffForPullRequest($user, $repo, $pullId)
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{
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// Build the request path.
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$path = "/repos/$user/$repo/pulls/" . (int) $pullId;
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// Build the request headers.
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$headers = array('Accept' => 'application/vnd.github.diff');
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$prepared = $this->prepareRequest($path, 0, 0, $headers);
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return $this->processResponse($this->client->get($prepared['url'], $prepared['headers']));
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}
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/**
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* Get a file's contents from a repository.
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*
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* @param string $user The name of the owner of the GitHub repository.
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* @param string $repo The name of the GitHub repository.
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* @param string $path The content path.
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* @param string $ref The name of the commit/branch/tag. Default: the repository’s default branch (usually master)
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*
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* @return \JHttpResponse
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*
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* @since 3.0.0
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*/
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public function getFileContents($user, $repo, $path, $ref = null)
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{
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$path = "/repos/$user/$repo/contents/$path";
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$prepared = $this->prepareRequest($path);
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if ($ref)
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{
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$url = new \JUri($prepared['url']);
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$url->setVar('ref', $ref);
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$prepared['url'] = (string) $url;
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}
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return $this->processResponse($this->client->get($prepared['url'], $prepared['headers']));
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}
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/**
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* Get the list of modified files for a pull request.
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*
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* @param string $user The name of the owner of the GitHub repository.
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* @param string $repo The name of the GitHub repository.
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* @param integer $pullId The pull request number.
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*
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* @return \JHttpResponse
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*
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* @since 3.0.0
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*/
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public function getFilesForPullRequest($user, $repo, $pullId)
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{
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// Build the request path.
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$path = "/repos/$user/$repo/pulls/" . (int) $pullId . '/files';
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$prepared = $this->prepareRequest($path);
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return $this->processResponse($this->client->get($prepared['url'], $prepared['headers']));
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}
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/**
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* Get a list of the open issues for a repository.
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*
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* @param string $user The name of the owner of the GitHub repository.
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* @param string $repo The name of the GitHub repository.
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* @param integer $page The page number from which to get items.
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* @param integer $limit The number of items on a page.
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*
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* @return \JHttpResponse
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*
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* @since 3.0.0
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*/
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public function getOpenIssues($user, $repo, $page = 0, $limit = 0)
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{
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$prepared = $this->prepareRequest("/repos/$user/$repo/issues", $page, $limit);
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return $this->processResponse($this->client->get($prepared['url'], $prepared['headers']));
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}
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/**
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* Get an option from the connector.
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*
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* @param string $key The name of the option to get.
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* @param mixed $default The default value if the option is not set.
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*
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* @return mixed The option value.
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*
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* @since 3.0.0
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*/
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public function getOption($key, $default = null)
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{
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return $this->options->get($key, $default);
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}
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/**
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* Get a single pull request.
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*
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* @param string $user The name of the owner of the GitHub repository.
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* @param string $repo The name of the GitHub repository.
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* @param integer $pullId The pull request number.
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*
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* @return \JHttpResponse
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*
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* @since 3.0.0
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*/
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public function getPullRequest($user, $repo, $pullId)
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{
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// Build the request path.
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$path = "/repos/$user/$repo/pulls/" . (int) $pullId;
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$prepared = $this->prepareRequest($path);
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return $this->processResponse($this->client->get($prepared['url'], $prepared['headers']));
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}
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/**
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* Get the rate limit for the authenticated user.
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*
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* @return \JHttpResponse
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*
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* @since 3.0.0
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*/
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public function getRateLimit()
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{
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$prepared = $this->prepareRequest('/rate_limit');
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return $this->processResponse($this->client->get($prepared['url'], $prepared['headers']));
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}
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/**
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* Process the response and return it.
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*
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* @param \JHttpResponse $response The response.
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* @param integer $expectedCode The expected response code.
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*
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* @return \JHttpResponse
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*
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* @since 3.0.0
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* @throws Exception\UnexpectedResponse
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*/
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protected function processResponse(\JHttpResponse $response, $expectedCode = 200)
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{
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// Validate the response code.
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if ($response->code != $expectedCode)
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{
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// Decode the error response and throw an exception.
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$body = json_decode($response->body);
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$error = isset($body->error) ? $body->error : (isset($body->message) ? $body->message : 'Unknown Error');
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throw new Exception\UnexpectedResponse($response, $error, $response->code);
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}
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return $response;
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}
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/**
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* Method to build and return a full request URL for the request.
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*
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* This method will add appropriate pagination details if necessary and also prepend the API url to have a complete URL for the request.
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*
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* @param string $path Path to process
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* @param integer $page Page to request
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* @param integer $limit Number of results to return per page
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* @param array $headers The headers to send with the request
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*
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* @return array Associative array containing the prepared URL and request headers
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*
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* @since 3.0.0
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*/
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protected function prepareRequest($path, $page = 0, $limit = 0, array $headers = array())
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{
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$url = $this->fetchUrl($path, $page, $limit);
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if ($token = $this->options->get('gh.token', false))
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{
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$headers['Authorization'] = "token $token";
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}
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return array('url' => $url, 'headers' => $headers);
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}
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/**
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* Set an option for the connector.
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*
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* @param string $key The name of the option to set.
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* @param mixed $value The option value to set.
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*
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* @return $this
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*
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* @since 3.0.0
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*/
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public function setOption($key, $value)
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{
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$this->options->set($key, $value);
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return $this;
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}
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}
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