yii源码分析2,yii源码分析
yii源码分析2,yii源码分析
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上一篇主要分析了Yii::createWebApplication ( $config )->run ();的createWebApplication ( $config )部分,这篇分析后面的。
run()也是不在CWebApplication里面,在CApplication 里。
<span> 1</span> <?<span>php </span><span> 2</span> <span>abstract</span> <span>class</span> CApplication <span>extends</span><span> CModule { </span><span> 3</span> <span>private</span> <span>$_id</span><span>; </span><span> 4</span> <span>private</span> <span>$_basePath</span><span>; </span><span> 5</span> <span>abstract</span> <span>public</span> <span>function</span><span> processRequest(); </span><span> 6</span> <span>public</span> <span>function</span> __construct(<span>$config</span> = <span>null</span><span>) { </span><span> 7</span> <span>if</span> (<span>is_string</span> ( <span>$config</span><span> )) </span><span> 8</span> <span>$config</span> = <span>require</span> (<span>$config</span><span>); </span><span> 9</span> Yii::setApplication ( <span>$this</span> );<span>//</span><span>保存整个app实例</span> <span>10</span> <span>if</span> (<span>isset</span> ( <span>$config</span> ['basePath'<span>] )) { </span><span>11</span> <span>$this</span>->setBasePath ( <span>$config</span> ['basePath'<span>] ); </span><span>12</span> <span>unset</span> ( <span>$config</span> ['basePath'<span>] ); </span><span>13</span> } <span>else</span> <span>14</span> <span>$this</span>->setBasePath ( 'protected'<span> ); </span><span>15</span> <span>//</span><span>设置别名,后面就可以用application表示basePath了</span> <span>16</span> Yii::setPathOfAlias ( 'application', <span>$this</span>-><span>getBasePath () ); </span><span>17</span> <span>//</span><span>钩子,模块 预 初始化时执行,子类实现。不过这时,配置还没有写入框架</span> <span>18</span> <span>$this</span>-><span>preinit (); </span><span>19</span> <span>$this</span>-><span>registerCoreComponents (); </span><span>20</span> <span>//</span><span>父类实现</span> <span>21</span> <span>$this</span>->configure ( <span>$config</span><span> ); </span><span>22</span> <span>//</span><span>加载静态应用组件</span> <span>23</span> <span>$this</span>-><span>preloadComponents (); </span><span>24</span> <span>//</span><span>这才开始初始化模块</span> <span>25</span> <span>$this</span>-><span>init (); </span><span>26</span> <span> } </span><span>27</span> <span>protected</span> <span>function</span><span> registerCoreComponents() { </span><span>28</span> <span>$components</span> = <span>array</span><span> ( </span><span>29</span> 'request' => <span>array</span><span> ( </span><span>30</span> 'class' => 'CHttpRequest' <span>31</span> ), <span>32</span> 'urlManager' => <span>array</span><span> ( </span><span>33</span> 'class' => 'CUrlManager' <span>34</span> <span> ) </span><span>35</span> <span> ); </span><span>36</span> <span>37</span> <span>$this</span>->setComponents ( <span>$components</span> );<span>//</span><span>父类实现</span> <span>38</span> <span> } </span><span>39</span> <span>public</span> <span>function</span><span> run() { </span><span>40</span> <span>$this</span>-><span>processRequest (); </span><span>41</span> <span> } </span><span>42</span> <span>public</span> <span>function</span><span> getId() { </span><span>43</span> <span>if</span> (<span>$this</span>->_id !== <span>null</span><span>) </span><span>44</span> <span>return</span> <span>$this</span>-><span>_id; </span><span>45</span> <span>else</span> <span>46</span> <span>return</span> <span>$this</span>->_id = <span>sprintf</span> ( '%x', <span>crc32</span> ( <span>$this</span>->getBasePath () . <span>$this</span>-><span>name ) ); </span><span>47</span> <span> } </span><span>48</span> <span>public</span> <span>function</span> setId(<span>$id</span><span>) { </span><span>49</span> <span>$this</span>->_id = <span>$id</span><span>; </span><span>50</span> <span> } </span><span>51</span> <span>public</span> <span>function</span><span> getBasePath() { </span><span>52</span> <span>return</span> <span>$this</span>-><span>_basePath; </span><span>53</span> <span> } </span><span>54</span> <span>public</span> <span>function</span> setBasePath(<span>$path</span><span>) { </span><span>55</span> <span>if</span> ((<span>$this</span>->_basePath = <span>realpath</span> ( <span>$path</span> )) === <span>false</span> || ! <span>is_dir</span> ( <span>$this</span>-><span>_basePath )) </span><span>56</span> <span>return</span><span>; </span><span>57</span> <span> } </span><span>58</span> <span>public</span> <span>function</span><span> getDb() { </span><span>59</span> <span>return</span> <span>$this</span>->getComponent ( 'db' );<span>//</span><span>父类实现</span> <span>60</span> <span> } </span><span>61</span> <span>public</span> <span>function</span><span> getUrlManager() { </span><span>62</span> <span>return</span> <span>$this</span>->getComponent ( 'urlManager'<span> ); </span><span>63</span> <span> } </span><span>64</span> <span>public</span> <span>function</span><span> getController() { </span><span>65</span> <span>return</span> <span>null</span><span>; </span><span>66</span> <span> } </span><span>67</span> <span>public</span> <span>function</span> getBaseUrl(<span>$absolute</span> = <span>false</span><span>) { </span><span>68</span> <span>return</span> <span>$this</span>->getRequest ()->getBaseUrl ( <span>$absolute</span><span> ); </span><span>69</span> <span> } </span><span>70</span> }
run()又用了CWebApplication里面的processRequest()。薛强大哥(yii作者),架构要不要这样啊.裁剪后当然觉得这样的调用很没意思。
后面的主要在CWebApplication里了。
<span> 1</span> <?<span>php </span><span> 2</span> <span>class</span> CWebApplication <span>extends</span><span> CApplication { </span><span> 3</span> <span>public</span> <span>$controllerNamespace</span><span>; </span><span> 4</span> <span>private</span> <span>$_controllerPath</span><span>; </span><span> 5</span> <span>private</span> <span>$_viewPath</span><span>; </span><span> 6</span> <span>private</span> <span>$_systemViewPath</span><span>; </span><span> 7</span> <span>private</span> <span>$_controller</span><span>; </span><span> 8</span> <span>public</span> <span>$controllerMap</span>=<span>array</span><span>(); </span><span> 9</span> <span>public</span> <span>function</span> processRequest() {<span>//</span><span>开始执行请求 </span><span>10</span> <span> //获取urlManager组件,解析请求,得到controller/action这种格式的string, </span><span>11</span> <span> //并且将隐藏参数与请求的参数一一对应,匹配起来,写入$_REQUEST中</span> <span>12</span> <span>$route</span> = <span>$this</span>->getUrlManager ()->parseUrl (<span>$this</span>-><span>getRequest()); </span><span>13</span> <span>$this</span>->runController ( <span>$route</span><span> ); </span><span>14</span> <span> } </span><span>15</span> <span>public</span> <span>function</span> getRequest() {<span>//</span><span>获取request组件</span> <span>16</span> <span>return</span> <span>$this</span>->getComponent ( 'request'<span> ); </span><span>17</span> <span> } </span><span>18</span> <span>protected</span> <span>function</span> registerCoreComponents() {<span>//</span><span>注册核心组件</span> <span>19</span> parent::<span>registerCoreComponents (); </span><span>20</span> <span> } </span><span>21</span> <span>//</span><span>执行contronller</span> <span>22</span> <span>public</span> <span>function</span> runController(<span>$route</span><span>) { </span><span>23</span> <span>if</span> ((<span>$ca</span> = <span>$this</span>->createController ( <span>$route</span> )) !== <span>null</span><span>) { </span><span>24</span> <span>list</span> ( <span>$controller</span>, <span>$actionID</span> ) = <span>$ca</span><span>; </span><span>25</span> <span>$oldController</span> = <span>$this</span>-><span>_controller; </span><span>26</span> <span>$this</span>->_controller = <span>$controller</span><span>; </span><span>27</span> <span>$controller</span>->init ();<span>//</span><span>钩子,在执行action方法前调用,子类去实现</span> <span>28</span> <span>$controller</span>->run ( <span>$actionID</span> );<span>//</span><span>开始转入controller类中action方法的执行</span> <span>29</span> <span>$this</span>->_controller = <span>$oldController</span><span>; </span><span>30</span> <span> } </span><span>31</span> <span> } </span><span>32</span> <span>//</span><span>创建controller类实例,从controller/action这种格式的string中解析出$controller, $actionID </span> <span>33</span> <span>public</span> <span>function</span> createController(<span>$route</span>, <span>$owner</span> = <span>null</span><span>) { </span><span>34</span> <span>if</span> (<span>$owner</span> === <span>null</span><span>) </span><span>35</span> <span>$owner</span> = <span>$this</span><span>; </span><span>36</span> <span>if</span> ((<span>$route</span> = <span>trim</span> ( <span>$route</span>, '/' )) === ''<span>) </span><span>37</span> <span>$route</span> = <span>$owner</span>-><span>defaultController; </span><span>38</span> <span>39</span> <span>$route</span> .= '/'<span>; </span><span>40</span> <span>while</span> ( (<span>$pos</span> = <span>strpos</span> ( <span>$route</span>, '/' )) !== <span>false</span><span> ) { </span><span>41</span> <span>$id</span> = <span>substr</span> ( <span>$route</span>, 0, <span>$pos</span><span> ); </span><span>42</span> <span>if</span> (! <span>preg_match</span> ( '/^\w+$/', <span>$id</span><span> )) </span><span>43</span> <span>return</span> <span>null</span><span>; </span><span>44</span> <span>$id</span> = <span>strtolower</span> ( <span>$id</span><span> ); </span><span>45</span> <span>$route</span> = ( <span>string</span> ) <span>substr</span> ( <span>$route</span>, <span>$pos</span> + 1<span> ); </span><span>46</span> <span>if</span> (! <span>isset</span> ( <span>$basePath</span> )) <span>//</span><span> first segment</span> <span>47</span> <span> { </span><span>48</span> <span>$basePath</span> = <span>$owner</span>-><span>getControllerPath (); </span><span>49</span> <span>$controllerID</span> = ''<span>; </span><span>50</span> } <span>else</span><span> { </span><span>51</span> <span>$controllerID</span> .= '/'<span>; </span><span>52</span> <span> } </span><span>53</span> <span>$className</span> = <span>ucfirst</span> ( <span>$id</span> ) . 'Controller'<span>; </span><span>54</span> <span>$classFile</span> = <span>$basePath</span> . DIRECTORY_SEPARATOR . <span>$className</span> . '.php'<span>; </span><span>55</span> <span>56</span> <span>if</span> (<span>is_file</span> ( <span>$classFile</span><span> )) { </span><span>57</span> <span>if</span> (! <span>class_exists</span> ( <span>$className</span>, <span>false</span><span> )) </span><span>58</span> <span>require</span> (<span>$classFile</span><span>); </span><span>59</span> <span>if</span> (<span>class_exists</span> ( <span>$className</span>, <span>false</span> ) && <span>is_subclass_of</span> ( <span>$className</span>, 'CController'<span> )) { </span><span>60</span> <span>$id</span> [0] = <span>strtolower</span> ( <span>$id</span> [0<span>] ); </span><span>61</span> <span>return</span> <span>array</span><span> ( </span><span>62</span> <span>new</span> <span>$className</span> ( <span>$controllerID</span> . <span>$id</span>, <span>$owner</span> === <span>$this</span> ? <span>null</span> : <span>$owner</span> ), <span>63</span> <span>$this</span>->parseActionParams ( <span>$route</span><span> ) </span><span>64</span> <span> ); </span><span>65</span> <span> } </span><span>66</span> <span>return</span> <span>null</span><span>; </span><span>67</span> <span> } </span><span>68</span> <span>$controllerID</span> .= <span>$id</span><span>; </span><span>69</span> <span>$basePath</span> .= DIRECTORY_SEPARATOR . <span>$id</span><span>; </span><span>70</span> <span> } </span><span>71</span> <span> } </span><span>72</span> <span>protected</span> <span>function</span> parseActionParams(<span>$pathInfo</span><span>) { </span><span>73</span> <span>if</span> ((<span>$pos</span> = <span>strpos</span> ( <span>$pathInfo</span>, '/' )) !== <span>false</span><span>) { </span><span>74</span> <span>$manager</span> = <span>$this</span>->getUrlManager ();<span>//</span><span>再次获取urlManager,在上面第一次调用中已经导入。</span> <span>75</span> <span>$manager</span>->parsePathInfo ( ( <span>string</span> ) <span>substr</span> ( <span>$pathInfo</span>, <span>$pos</span> + 1<span> ) ); </span><span>76</span> <span>$actionID</span> = <span>substr</span> ( <span>$pathInfo</span>, 0, <span>$pos</span><span> ); </span><span>77</span> <span>return</span> <span>$manager</span>->caseSensitive ? <span>$actionID</span> : <span>strtolower</span> ( <span>$actionID</span><span> ); </span><span>78</span> } <span>else</span> <span>79</span> <span>return</span> <span>$pathInfo</span><span>; </span><span>80</span> <span> } </span><span>81</span> <span>public</span> <span>function</span><span> getControllerPath() { </span><span>82</span> <span>if</span> (<span>$this</span>->_controllerPath !== <span>null</span><span>) </span><span>83</span> <span>return</span> <span>$this</span>-><span>_controllerPath; </span><span>84</span> <span>else</span> <span>85</span> <span>return</span> <span>$this</span>->_controllerPath = <span>$this</span>->getBasePath () . DIRECTORY_SEPARATOR . 'controllers'<span>; </span><span>86</span> <span> } </span><span>87</span> <span>//</span><span>两个钩子,子类去实现</span> <span>88</span> <span>public</span> <span>function</span> beforeControllerAction(<span>$controller</span>, <span>$action</span><span>) { </span><span>89</span> <span>return</span> <span>true</span><span>; </span><span>90</span> <span> } </span><span>91</span> <span>public</span> <span>function</span> afterControllerAction(<span>$controller</span>, <span>$action</span><span>) { </span><span>92</span> <span> } </span><span>93</span> <span>protected</span> <span>function</span><span> init() { </span><span>94</span> parent::<span>init (); </span><span>95</span> <span> } </span><span>96</span> }
对于$this->getUrlManager (),YiiBase里面有'CUrlManager' => 'CUrlManager.php'这个映射,说明是实例化了CUrlManager这个类。
<span> 1</span> <?<span>php </span><span> 2</span> <span>class</span><span> CUrlManager { </span><span> 3</span> <span>const</span> GET_FORMAT = 'get'<span>; </span><span> 4</span> <span>public</span> <span>$rules</span> = <span>array</span><span> (); </span><span> 5</span> <span>public</span> <span>$urlSuffix</span> = ''<span>; </span><span> 6</span> <span>public</span> <span>$caseSensitive</span> = <span>true</span><span>; </span><span> 7</span> <span>public</span> <span>$urlRuleClass</span> = 'CUrlRule'<span>; </span><span> 8</span> <span>private</span> <span>$_urlFormat</span> = self::<span>GET_FORMAT; </span><span> 9</span> <span>private</span> <span>$_rules</span> = <span>array</span><span> (); </span><span>10</span> <span>private</span> <span>$_baseUrl</span><span>; </span><span>11</span> <span>protected</span> <span>function</span><span> processRules() { </span><span>12</span> <span>//</span><span>遍历自定义的请求匹配规则</span> <span>13</span> <span>foreach</span> ( <span>$this</span>->rules <span>as</span> <span>$pattern</span> => <span>$route</span><span> ) { </span><span>14</span> <span>//</span><span>对每一个规则创建CUrlRule实例</span> <span>15</span> <span>$this</span>->_rules [] = <span>$this</span>->createUrlRule ( <span>$route</span>, <span>$pattern</span><span> ); </span><span>16</span> <span> } </span><span>17</span> <span> } </span><span>18</span> <span>protected</span> <span>function</span> createUrlRule(<span>$route</span>, <span>$pattern</span><span>) { </span><span>19</span> <span>if</span> (<span>is_array</span> ( <span>$route</span> ) && <span>isset</span> ( <span>$route</span> ['class'<span>] )) </span><span>20</span> <span>return</span> <span>$route</span><span>; </span><span>21</span> <span>else</span><span> { </span><span>22</span> <span>//</span><span>import第二个参数表示是否立即包含类文件。 如果为flase,则类文件仅在被使用时包含。 这个参数仅当使用一个类的路径 别名 时才会用到</span> <span>23</span> <span>$urlRuleClass</span> = Yii::import ( <span>$this</span>->urlRuleClass, <span>true</span><span> ); </span><span>24</span> <span>//</span><span>创建CUrlRule实例</span> <span>25</span> <span>return</span> <span>new</span> <span>$urlRuleClass</span> ( <span>$route</span>, <span>$pattern</span><span> ); </span><span>26</span> <span> } </span><span>27</span> <span> } </span><span>28</span> <span>//</span><span>类似于__construct()</span> <span>29</span> <span>public</span> <span>function</span><span> init() { </span><span>30</span> <span>$this</span>-><span>processRules (); </span><span>31</span> <span> } </span><span>32</span> <span>public</span> <span>function</span> parseUrl(<span>$request</span><span>) { </span><span>33</span> <span>//</span><span>获取请求</span> <span>34</span> <span>$rawPathInfo</span> = <span>$request</span>-><span>getPathInfo (); </span><span>35</span> <span>$pathInfo</span> = <span>$this</span>->removeUrlSuffix ( <span>$rawPathInfo</span>, <span>$this</span>-><span>urlSuffix ); </span><span>36</span> <span>foreach</span> ( <span>$this</span>->_rules <span>as</span> <span>$i</span> => <span>$rule</span><span> ) { </span><span>37</span> <span>if</span> ((<span>$r</span> = <span>$rule</span>->parseUrl ( <span>$this</span>, <span>$pathInfo</span>, <span>$rawPathInfo</span> )) !== <span>false</span><span>) { </span><span>38</span> <span>return</span> <span>$r</span><span>; </span><span>39</span> <span> } </span><span>40</span> <span> } </span><span>41</span> <span>return</span> <span>$pathInfo</span><span>; </span><span>42</span> <span> } </span><span>43</span> <span>//</span><span>解析请求,将请求参数写入$_REQUEST</span> <span>44</span> <span>public</span> <span>function</span> parsePathInfo(<span>$pathInfo</span><span>) { </span><span>45</span> <span>if</span> (<span>$pathInfo</span> === ''<span>) </span><span>46</span> <span>return</span><span>; </span><span>47</span> <span>$segs</span> = <span>explode</span> ( '/', <span>$pathInfo</span> . '/'<span> ); </span><span>48</span> <span>$n</span> = <span>count</span> ( <span>$segs</span><span> ); </span><span>49</span> <span>for</span>(<span>$i</span> = 0; <span>$i</span> < <span>$n</span> - 1; <span>$i</span> += 2<span>) { </span><span>50</span> <span>$key</span> = <span>$segs</span> [<span>$i</span><span>]; </span><span>51</span> <span>if</span> (<span>$key</span> === ''<span>) </span><span>52</span> <span>continue</span><span>; </span><span>53</span> <span>$value</span> = <span>$segs</span> [<span>$i</span> + 1<span>]; </span><span>54</span> <span>if</span> ((<span>$pos</span> = <span>strpos</span> ( <span>$key</span>, '[' )) !== <span>false</span> && (<span>$m</span> = <span>preg_match_all</span> ( '/\[(.*?)\]/', <span>$key</span>, <span>$matches</span> )) > 0<span>) { </span><span>55</span> <span>$name</span> = <span>substr</span> ( <span>$key</span>, 0, <span>$pos</span><span> ); </span><span>56</span> <span>for</span>(<span>$j</span> = <span>$m</span> - 1; <span>$j</span> >= 0; -- <span>$j</span><span>) { </span><span>57</span> <span>if</span> (<span>$matches</span> [1] [<span>$j</span>] === ''<span>) </span><span>58</span> <span>$value</span> = <span>array</span><span> ( </span><span>59</span> <span>$value</span> <span>60</span> <span> ); </span><span>61</span> <span>else</span> <span>62</span> <span>$value</span> = <span>array</span><span> ( </span><span>63</span> <span>$matches</span> [1] [<span>$j</span>] => <span>$value</span> <span>64</span> <span> ); </span><span>65</span> <span> } </span><span>66</span> <span>if</span> (<span>isset</span> ( <span>$_GET</span> [<span>$name</span>] ) && <span>is_array</span> ( <span>$_GET</span> [<span>$name</span><span>] )) </span><span>67</span> <span>$value</span> = CMap::mergeArray ( <span>$_GET</span> [<span>$name</span>], <span>$value</span><span> ); </span><span>68</span> <span>$_REQUEST</span> [<span>$name</span>] = <span>$_GET</span> [<span>$name</span>] = <span>$value</span><span>; </span><span>69</span> } <span>else</span><span> { </span><span>70</span> <span>$_REQUEST</span> [<span>$key</span>] = <span>$_GET</span> [<span>$key</span>] = <span>$value</span><span>; </span><span>71</span> <span> } </span><span>72</span> <span> } </span><span>73</span> <span> } </span><span>74</span> <span>//</span><span>去除请求后缀,如video/broadcast.html=>video/broadcast </span> <span>75</span> <span>public</span> <span>function</span> removeUrlSuffix(<span>$pathInfo</span>, <span>$urlSuffix</span><span>) { </span><span>76</span> <span>if</span> (<span>$urlSuffix</span> !== '' && <span>substr</span> ( <span>$pathInfo</span>, - <span>strlen</span> ( <span>$urlSuffix</span> ) ) === <span>$urlSuffix</span><span>) </span><span>77</span> <span>return</span> <span>substr</span> ( <span>$pathInfo</span>, 0, - <span>strlen</span> ( <span>$urlSuffix</span><span> ) ); </span><span>78</span> <span>else</span> <span>79</span> <span>return</span> <span>$pathInfo</span><span>; </span><span>80</span> <span> } </span><span>81</span> }
yii在创建组件的时候,在调用了CModule的getComponent($id, $createIfNull = true)里面调用了$component->init ();。
所以这里进入init(),然后processRules()遍历自定义的请求匹配规则。如
<span> 1</span> 'urlManager' => <span>array</span><span> ( </span><span> 2</span> 'urlFormat' => 'path', <span> 3</span> 'rules' => <span>array</span><span> ( </span><span> 4</span> 'comment_reply/<a:\d+>/<ci:\d+>' => 'reply/load_comment_reply', <span> 5</span> 'b/<id:\d+>' => <span>array</span><span> ( </span><span> 6</span> 'video/broadcast', <span> 7</span> 'urlSuffix' => '.html' <span> 8</span> ), <span> 9</span> 'c/<list_start:\d+>' => 'video/list_more_video', <span>10</span> 'u/reg' => 'user/reg', <span>11</span> 'v/upload' => 'video/upload_video', <span>12</span> 'login' => 'user/to_login', <span>13</span> 'show_chanel/<chanel_id:\d+>' => 'show/chanel' , <span>14</span> 'show/<show_id:\d+>' => 'show/show', <span>15</span> <span> ) </span><span>16</span> )
$this->_rules [] = $this->createUrlRule ( $route, $pattern );对每一个规则创建CUrlRule实例,并保存。
<span> 1</span> <?<span>php </span><span> 2</span> <span>class</span><span> CUrlRule { </span><span> 3</span> <span>public</span> <span>$urlSuffix</span><span>; </span><span> 4</span> <span>public</span> <span>$defaultParams</span> = <span>array</span><span> (); </span><span> 5</span> <span>public</span> <span>$route</span><span>; </span><span> 6</span> <span>public</span> <span>$routePattern</span><span>; </span><span> 7</span> <span>public</span> <span>$pattern</span><span>; </span><span> 8</span> <span>public</span> <span>$template</span><span>; </span><span> 9</span> <span>public</span> <span>$params</span> = <span>array</span><span> (); </span><span>10</span> <span>//</span><span>根据自定义规则构建匹配参数的正则表达式。</span> <span>11</span> <span>public</span> <span>function</span> __construct(<span>$route</span>, <span>$pattern</span><span>) { </span><span>12</span> <span>if</span> (<span>is_array</span> ( <span>$route</span><span> )) { </span><span>13</span> <span>foreach</span> ( <span>array</span><span> ( </span><span>14</span> 'urlSuffix', <span>15</span> 'caseSensitive', <span>16</span> 'defaultParams', <span>17</span> ) <span>as</span> <span>$name</span><span> ) { </span><span>18</span> <span>if</span> (<span>isset</span> ( <span>$route</span> [<span>$name</span><span>] )) </span><span>19</span> <span>$this</span>-><span>$name</span> = <span>$route</span> [<span>$name</span><span>]; </span><span>20</span> <span> } </span><span>21</span> <span>if</span> (<span>isset</span> ( <span>$route</span> ['pattern'<span>] )) </span><span>22</span> <span>$pattern</span> = <span>$route</span> ['pattern'<span>]; </span><span>23</span> <span>$route</span> = <span>$route</span> [0<span>]; </span><span>24</span> <span> } </span><span>25</span> <span>$this</span>->route = <span>trim</span> ( <span>$route</span>, '/'<span> ); </span><span>26</span> <span>27</span> <span>$tr2</span> ['/'] = <span>$tr</span> ['/'] = '\\/'<span>; </span><span>28</span> <span>$tr</span> ['.'] = '\\.'<span>; </span><span>29</span> <span>30</span> <span>$this</span>->hasHostInfo = ! <span>strncasecmp</span> ( <span>$pattern</span>, 'http://', 7 ) || ! <span>strncasecmp</span> ( <span>$pattern</span>, 'https://', 8<span> ); </span><span>31</span> <span>32</span> <span>if</span> (<span>preg_match_all</span> ( '/<(\w+):?(.*?)?>/', <span>$pattern</span>, <span>$matches</span><span> )) { </span><span>33</span> <span>$tokens</span> = <span>array_combine</span> ( <span>$matches</span> [1], <span>$matches</span> [2<span>] ); </span><span>34</span> <span>foreach</span> ( <span>$tokens</span> <span>as</span> <span>$name</span> => <span>$value</span><span> ) { </span><span>35</span> <span>if</span> (<span>$value</span> === ''<span>) </span><span>36</span> <span>$value</span> = '[^\/]+'<span>; </span><span>37</span> <span>$tr</span> ["<<span>$name</span>>"] = "(?P<<span>$name</span>><span>$value</span>)"<span>; </span><span>38</span> <span>//</span><span>取出自定义规则中隐藏的参数,保存</span> <span>39</span> <span>if</span> (<span>isset</span> ( <span>$this</span>->references [<span>$name</span><span>] )) </span><span>40</span> <span>$tr2</span> ["<<span>$name</span>>"] = <span>$tr</span> ["<<span>$name</span>>"<span>]; </span><span>41</span> <span>else</span> <span>42</span> <span>$this</span>->params [<span>$name</span>] = <span>$value</span><span>; </span><span>43</span> <span> } </span><span>44</span> <span> } </span><span>45</span> <span>$p</span> = <span>rtrim</span> ( <span>$pattern</span>, '*'<span> ); </span><span>46</span> <span>$this</span>->append = <span>$p</span> !== <span>$pattern</span><span>; </span><span>47</span> <span>$p</span> = <span>trim</span> ( <span>$p</span>, '/'<span> ); </span><span>48</span> <span>$this</span>->template = <span>preg_replace</span> ( '/<(\w+):?.*?>/', '<$1>', <span>$p</span><span> ); </span><span>49</span> <span>$this</span>->pattern = '/^' . <span>strtr</span> ( <span>$this</span>->template, <span>$tr</span> ) . '\/'<span>; </span><span>50</span> <span>//</span><span>合成匹配的正则表达式</span> <span>51</span> <span>if</span> (<span>$this</span>-><span>append) </span><span>52</span> <span>$this</span>->pattern .= '/u'<span>; </span><span>53</span> <span>else</span> <span>54</span> <span>$this</span>->pattern .= '$/u'<span>; </span><span>55</span> <span> } </span><span>56</span> <span>//</span><span>根据正则表达式和请求,将隐藏参数与请求参数一一匹配,保存$_REQUEST</span> <span>57</span> <span>public</span> <span>function</span> parseUrl(<span>$manager</span>, <span>$pathInfo</span>, <span>$rawPathInfo</span><span>) { </span><span>58</span> <span>if</span> (<span>$this</span>->urlSuffix !== <span>null</span><span>) { </span><span>59</span> <span>$pathInfo</span> = <span>$manager</span>->removeUrlSuffix ( <span>$rawPathInfo</span>, <span>$this</span>-><span>urlSuffix ); </span><span>60</span> <span> } </span><span>61</span> <span>$pathInfo</span> .= '/'<span>; </span><span>62</span> <span>if</span> (<span>preg_match</span> ( <span>$this</span>->pattern, <span>$pathInfo</span>, <span>$matches</span><span> )) { </span><span>63</span> <span>foreach</span> ( <span>$this</span>->defaultParams <span>as</span> <span>$name</span> => <span>$value</span><span> ) { </span><span>64</span> <span>if</span> (! <span>isset</span> ( <span>$_GET</span> [<span>$name</span><span>] )) </span><span>65</span> <span>$_REQUEST</span> [<span>$name</span>] = <span>$_GET</span> [<span>$name</span>] = <span>$value</span><span>; </span><span>66</span> <span> } </span><span>67</span> <span>$tr</span> = <span>array</span><span> (); </span><span>68</span> <span>foreach</span> ( <span>$matches</span> <span>as</span> <span>$key</span> => <span>$value</span><span> ) { </span><span>69</span> <span>if</span> (<span>isset</span> ( <span>$this</span>->references [<span>$key</span><span>] )) </span><span>70</span> <span>$tr</span> [<span>$this</span>->references [<span>$key</span>]] = <span>$value</span><span>; </span><span>71</span> <span>elseif</span> (<span>isset</span> ( <span>$this</span>->params [<span>$key</span><span>] )) </span><span>72</span> <span>$_REQUEST</span> [<span>$key</span>] = <span>$_GET</span> [<span>$key</span>] = <span>$value</span><span>; </span><span>73</span> <span> } </span><span>74</span> <span>if</span> (<span>$pathInfo</span> !== <span>$matches</span> [0]) <span>//</span><span>如果还有另外的请求参数</span> <span>75</span> <span>$manager</span>->parsePathInfo ( <span>ltrim</span> ( <span>substr</span> ( <span>$pathInfo</span>, <span>strlen</span> ( <span>$matches</span> [0] ) ), '/'<span> ) ); </span><span>76</span> <span>return</span> <span>$this</span>-><span>route; </span><span>77</span> } <span>else</span> <span>78</span> <span>return</span> <span>false</span><span>; </span><span>79</span> <span> } </span><span>80</span> }
CUrlRule中的parseUrl($manager, $pathInfo, $rawPathInfo)这里暂时还没用到。
然后回到CWebApplication中的¥route=$this->getUrlManager ()->parseUrl ($this->getRequest());。后面parseUrl开始解析请求了。
转到CUrlManager的parseUrl($request),遍历创建CUrlRule过程中保存的匹配规则,再在CUrlRule里面用CUrlRule的parseUrl($manager, $pathInfo, $rawPathInfo)将隐藏参数与请求参数一一匹配,保存$_REQUEST.
比如:
'b/
'video/broadcast',
'urlSuffix' => '.html'
)
我的请求是b/1.html,就会被解析成video/broadcast?id=1.而最终的$route就是这个。

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