credential.html

用JAVA编写的,在做实验的时候留下来的,本来想删的,但是传上来,大家分享吧

<a name="130" href="#130">130</a>     }
<a name="131" href="#131">131</a> 
<a name="132" href="#132">132</a>     <em>/**<em>*</em></em>
<a name="133" href="#133">133</a> <em>     * Detach this credential from passed curi.</em>
<a name="134" href="#134">134</a> <em>     *</em>
<a name="135" href="#135">135</a> <em>     * @param curi</em>
<a name="136" href="#136">136</a> <em>     * @return True if we detached a Credential reference.</em>
<a name="137" href="#137">137</a> <em>     */</em>
<a name="138" href="#138">138</a>     <strong>public</strong> <strong>boolean</strong> detach(<a href="../../../../../org/archive/crawler/datamodel/CrawlURI.html">CrawlURI</a> curi) {
<a name="139" href="#139">139</a>         <strong>boolean</strong> result = false;
<a name="140" href="#140">140</a>         <strong>if</strong> (!curi.hasCredentialAvatars()) {
<a name="141" href="#141">141</a>             logger.severe(<span class="string">"This curi "</span> + curi +
<a name="142" href="#142">142</a>                 <span class="string">" has no cred when it should"</span>);
<a name="143" href="#143">143</a>         } <strong>else</strong> {
<a name="144" href="#144">144</a>             Set avatars = curi.getCredentialAvatars();
<a name="145" href="#145">145</a>             <strong>for</strong> (Iterator i = avatars.iterator(); i.hasNext();) {
<a name="146" href="#146">146</a>                 <a href="../../../../../org/archive/crawler/datamodel/credential/CredentialAvatar.html">CredentialAvatar</a> ca = (CredentialAvatar)i.next();
<a name="147" href="#147">147</a>                 <strong>try</strong> {
<a name="148" href="#148">148</a>                     <strong>if</strong> (ca.match(getClass(), getKey(curi))) {
<a name="149" href="#149">149</a>                         result = curi.removeCredentialAvatar(ca);
<a name="150" href="#150">150</a>                     }
<a name="151" href="#151">151</a>                 }
<a name="152" href="#152">152</a>                 <strong>catch</strong> (AttributeNotFoundException e) {
<a name="153" href="#153">153</a>                     logger.severe(<span class="string">"Failed detach of "</span> + ca + <span class="string">" from "</span> + curi);
<a name="154" href="#154">154</a>                 }
<a name="155" href="#155">155</a>             }
<a name="156" href="#156">156</a>         }
<a name="157" href="#157">157</a>         <strong>return</strong> result;
<a name="158" href="#158">158</a>     }
<a name="159" href="#159">159</a> 
<a name="160" href="#160">160</a>     <em>/**<em>*</em></em>
<a name="161" href="#161">161</a> <em>     * Detach all credentials of this type from passed curi.</em>
<a name="162" href="#162">162</a> <em>     *</em>
<a name="163" href="#163">163</a> <em>     * @param curi</em>
<a name="164" href="#164">164</a> <em>     * @return True if we detached references.</em>
<a name="165" href="#165">165</a> <em>     */</em>
<a name="166" href="#166">166</a>     <strong>public</strong> <strong>boolean</strong> detachAll(<a href="../../../../../org/archive/crawler/datamodel/CrawlURI.html">CrawlURI</a> curi) {
<a name="167" href="#167">167</a>         <strong>boolean</strong> result = false;
<a name="168" href="#168">168</a>         <strong>if</strong> (!curi.hasCredentialAvatars()) {
<a name="169" href="#169">169</a>             logger.severe(<span class="string">"This curi "</span> + curi +
<a name="170" href="#170">170</a>                 <span class="string">" has no creds when it should."</span>);
<a name="171" href="#171">171</a>         } <strong>else</strong> {
<a name="172" href="#172">172</a>             Set avatars = curi.getCredentialAvatars();
<a name="173" href="#173">173</a>             <strong>for</strong> (Iterator i = avatars.iterator(); i.hasNext();) {
<a name="174" href="#174">174</a>                 <a href="../../../../../org/archive/crawler/datamodel/credential/CredentialAvatar.html">CredentialAvatar</a> ca = (CredentialAvatar)i.next();
<a name="175" href="#175">175</a>                 <strong>if</strong> (ca.match(getClass())) {
<a name="176" href="#176">176</a>                     result = curi.removeCredentialAvatar(ca);
<a name="177" href="#177">177</a>                 }
<a name="178" href="#178">178</a>             }
<a name="179" href="#179">179</a>         }
<a name="180" href="#180">180</a>         <strong>return</strong> result;
<a name="181" href="#181">181</a>     }
<a name="182" href="#182">182</a> 
<a name="183" href="#183">183</a>     <em>/**<em>*</em></em>
<a name="184" href="#184">184</a> <em>     * @param curi CrawlURI to look at.</em>
<a name="185" href="#185">185</a> <em>     * @return True if this credential IS a prerequisite for passed</em>
<a name="186" href="#186">186</a> <em>     * CrawlURI.</em>
<a name="187" href="#187">187</a> <em>     */</em>
<a name="188" href="#188">188</a>     <strong>public</strong> <strong>abstract</strong> <strong>boolean</strong> isPrerequisite(<a href="../../../../../org/archive/crawler/datamodel/CrawlURI.html">CrawlURI</a> curi);
<a name="189" href="#189">189</a> 
<a name="190" href="#190">190</a>     <em>/**<em>*</em></em>
<a name="191" href="#191">191</a> <em>     * @param curi CrawlURI to look at.</em>
<a name="192" href="#192">192</a> <em>     * @return True if this credential HAS a prerequisite for passed CrawlURI.</em>
<a name="193" href="#193">193</a> <em>     */</em>
<a name="194" href="#194">194</a>     <strong>public</strong> <strong>abstract</strong> <strong>boolean</strong> hasPrerequisite(<a href="../../../../../org/archive/crawler/datamodel/CrawlURI.html">CrawlURI</a> curi);
<a name="195" href="#195">195</a> 
<a name="196" href="#196">196</a>     <em>/**<em>*</em></em>
<a name="197" href="#197">197</a> <em>     * Return the authentication URI, either absolute or relative, that serves</em>
<a name="198" href="#198">198</a> <em>     * as prerequisite the passed &lt;code>curi&lt;/code>.</em>
<a name="199" href="#199">199</a> <em>     *</em>
<a name="200" href="#200">200</a> <em>     * @param curi CrawlURI to look at.</em>
<a name="201" href="#201">201</a> <em>     * @return Prerequisite URI for the passed curi.</em>
<a name="202" href="#202">202</a> <em>     */</em>
<a name="203" href="#203">203</a>     <strong>public</strong> <strong>abstract</strong> String getPrerequisite(<a href="../../../../../org/archive/crawler/datamodel/CrawlURI.html">CrawlURI</a> curi);
<a name="204" href="#204">204</a> 
<a name="205" href="#205">205</a>     <em>/**<em>*</em></em>
<a name="206" href="#206">206</a> <em>     * @param context Context to use when searching for credential domain.</em>
<a name="207" href="#207">207</a> <em>     * @return Key that is unique to this credential type.</em>
<a name="208" href="#208">208</a> <em>     * @throws AttributeNotFoundException</em>
<a name="209" href="#209">209</a> <em>     */</em>
<a name="210" href="#210">210</a>     <strong>public</strong> <strong>abstract</strong> String getKey(<a href="../../../../../org/archive/crawler/datamodel/CrawlURI.html">CrawlURI</a> context)
<a name="211" href="#211">211</a>         throws AttributeNotFoundException;
<a name="212" href="#212">212</a> 
<a name="213" href="#213">213</a>     <em>/**<em>*</em></em>
<a name="214" href="#214">214</a> <em>     * @return True if this credential is of the type that needs to be offered</em>
<a name="215" href="#215">215</a> <em>     * on each visit to the server (e.g. Rfc2617 is such a type).</em>
<a name="216" href="#216">216</a> <em>     */</em>
<a name="217" href="#217">217</a>     <strong>public</strong> <strong>abstract</strong> <strong>boolean</strong> isEveryTime();
<a name="218" href="#218">218</a> 
<a name="219" href="#219">219</a>     <em>/**<em>*</em></em>
<a name="220" href="#220">220</a> <em>     * @param curi CrawlURI to as for context.</em>
<a name="221" href="#221">221</a> <em>     * @param http Instance of httpclient.</em>
<a name="222" href="#222">222</a> <em>     * @param method Method to populate.</em>
<a name="223" href="#223">223</a> <em>     * @param payload Avatar payload to use populating the method.</em>
<a name="224" href="#224">224</a> <em>     * @return True if added a credentials.</em>
<a name="225" href="#225">225</a> <em>     */</em>
<a name="226" href="#226">226</a>     <strong>public</strong> <strong>abstract</strong> <strong>boolean</strong> populate(<a href="../../../../../org/archive/crawler/datamodel/CrawlURI.html">CrawlURI</a> curi, HttpClient http,
<a name="227" href="#227">227</a>         HttpMethod method, String payload);
<a name="228" href="#228">228</a> 
<a name="229" href="#229">229</a>     <em>/**<em>*</em></em>
<a name="230" href="#230">230</a> <em>     * @param curi CrawlURI to look at.</em>
<a name="231" href="#231">231</a> <em>     * @return True if this credential is to be posted.  Return false if the</em>
<a name="232" href="#232">232</a> <em>     * credential is to be GET'd or if POST'd or GET'd are not pretinent to this</em>
<a name="233" href="#233">233</a> <em>     * credential type.</em>
<a name="234" href="#234">234</a> <em>     */</em>
<a name="235" href="#235">235</a>     <strong>public</strong> <strong>abstract</strong> <strong>boolean</strong> isPost(<a href="../../../../../org/archive/crawler/datamodel/CrawlURI.html">CrawlURI</a> curi);
<a name="236" href="#236">236</a> 
<a name="237" href="#237">237</a>     <em>/**<em>*</em></em>
<a name="238" href="#238">238</a> <em>     * Test passed curi matches this credentials rootUri.</em>
<a name="239" href="#239">239</a> <em>     * @param controller</em>
<a name="240" href="#240">240</a> <em>     * @param curi CrawlURI to test.</em>
<a name="241" href="#241">241</a> <em>     * @return True if domain for credential matches that of the passed curi.</em>
<a name="242" href="#242">242</a> <em>     */</em>
<a name="243" href="#243">243</a>     <strong>public</strong> <strong>boolean</strong> rootUriMatch(<a href="../../../../../org/archive/crawler/framework/CrawlController.html">CrawlController</a> controller, 
<a name="244" href="#244">244</a>             <a href="../../../../../org/archive/crawler/datamodel/CrawlURI.html">CrawlURI</a> curi) {
<a name="245" href="#245">245</a>         String cd = <strong>null</strong>;
<a name="246" href="#246">246</a>         <strong>try</strong> {
<a name="247" href="#247">247</a>             cd = getCredentialDomain(curi);
<a name="248" href="#248">248</a>         }
<a name="249" href="#249">249</a>         <strong>catch</strong> (AttributeNotFoundException e) {
<a name="250" href="#250">250</a>             logger.severe(<span class="string">"Failed to get credential domain "</span> + curi + <span class="string">": "</span> +
<a name="251" href="#251">251</a>                 e.getMessage());
<a name="252" href="#252">252</a>         }
<a name="253" href="#253">253</a> 
<a name="254" href="#254">254</a>         <em class="comment">// TODO: Account for port.  Currently we do not distingush between</em>
<a name="255" href="#255">255</a>         <em class="comment">// http and https; they both get same crawl server instance.</em>
<a name="256" href="#256">256</a>         String serverName = controller.getServerCache().getServerFor(curi).
<a name="257" href="#257">257</a>             getName();
<a name="258" href="#258">258</a>         logger.fine(<span class="string">"RootURI: Comparing "</span> + serverName + <span class="string">" "</span> + cd);
<a name="259" href="#259">259</a>         <strong>return</strong> cd != <strong>null</strong> &amp;&amp; serverName != <strong>null</strong> &amp;&amp;
<a name="260" href="#260">260</a>             serverName.equalsIgnoreCase(cd);
<a name="261" href="#261">261</a>     }
<a name="262" href="#262">262</a> }
</pre>
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