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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head><meta http-equiv="content-type" content="text/html; charset=UTF-8" /><title>LaxURI xref</title><link type="text/css" rel="stylesheet" href="../../../stylesheet.css" /></head><body><div id="overview"><a href="../../../../apidocs/org/archive/net/LaxURI.html">View Javadoc</a></div><pre><a name="1" href="#1">1</a> <em class="comment">/*<em class="comment"> LaxURI</em></em><a name="2" href="#2">2</a> <em class="comment">*</em><a name="3" href="#3">3</a> <em class="comment">* $Id: LaxURI.java,v 1.6 2006/07/18 00:40:16 gojomo Exp $</em><a name="4" href="#4">4</a> <em class="comment">*</em><a name="5" href="#5">5</a> <em class="comment">* Created on Aug 3, 2005</em><a name="6" href="#6">6</a> <em class="comment">*</em><a name="7" href="#7">7</a> <em class="comment">* Copyright (C) 2005 Internet Archive.</em><a name="8" href="#8">8</a> <em class="comment">*</em><a name="9" href="#9">9</a> <em class="comment">* This file is part of the Heritrix web crawler (crawler.archive.org).</em><a name="10" href="#10">10</a> <em class="comment">*</em><a name="11" href="#11">11</a> <em class="comment">* Heritrix is free software; you can redistribute it and/or modify</em><a name="12" href="#12">12</a> <em class="comment">* it under the terms of the GNU Lesser Public License as published by</em><a name="13" href="#13">13</a> <em class="comment">* the Free Software Foundation; either version 2.1 of the License, or</em><a name="14" href="#14">14</a> <em class="comment">* any later version.</em><a name="15" href="#15">15</a> <em class="comment">*</em><a name="16" href="#16">16</a> <em class="comment">* Heritrix is distributed in the hope that it will be useful,</em><a name="17" href="#17">17</a> <em class="comment">* but WITHOUT ANY WARRANTY; without even the implied warranty of</em><a name="18" href="#18">18</a> <em class="comment">* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</em><a name="19" href="#19">19</a> <em class="comment">* GNU Lesser Public License for more details.</em><a name="20" href="#20">20</a> <em class="comment">*</em><a name="21" href="#21">21</a> <em class="comment">* You should have received a copy of the GNU Lesser Public License</em><a name="22" href="#22">22</a> <em class="comment">* along with Heritrix; if not, write to the Free Software</em><a name="23" href="#23">23</a> <em class="comment">* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</em><a name="24" href="#24">24</a> <em class="comment">*/</em> <a name="25" href="#25">25</a> <strong>package</strong> <a href="../../../org/archive/net/package-summary.html">org.archive.net</a>;<a name="26" href="#26">26</a> <a name="27" href="#27">27</a> <strong>import</strong> java.util.Arrays;<a name="28" href="#28">28</a> <strong>import</strong> java.util.BitSet;<a name="29" href="#29">29</a> <a name="30" href="#30">30</a> <strong>import</strong> org.apache.commons.httpclient.URI;<a name="31" href="#31">31</a> <strong>import</strong> org.apache.commons.httpclient.URIException;<a name="32" href="#32">32</a> <strong>import</strong> org.apache.commons.httpclient.util.EncodingUtil;<a name="33" href="#33">33</a> <a name="34" href="#34">34</a> <em>/**<em>*</em></em><a name="35" href="#35">35</a> <em> * URI subclass which allows partial/inconsistent encoding, matching</em><a name="36" href="#36">36</a> <em> * the URIs which will be relayed in requests from popular web</em><a name="37" href="#37">37</a> <em> * browsers (esp. Mozilla Firefox and MS IE).</em><a name="38" href="#38">38</a> <em> * </em><a name="39" href="#39">39</a> <em> * @author gojomo</em><a name="40" href="#40">40</a> <em> */</em><a name="41" href="#41">41</a> <strong>public</strong> <strong>class</strong> <a href="../../../org/archive/net/LaxURI.html">LaxURI</a> <strong>extends</strong> URI {<a name="42" href="#42">42</a> <strong>final</strong> <strong>protected</strong> <strong>static</strong> <strong>char</strong>[] HTTP_SCHEME = {'h','t','t','p'};<a name="43" href="#43">43</a> <strong>final</strong> <strong>protected</strong> <strong>static</strong> <strong>char</strong>[] HTTPS_SCHEME = {'h','t','t','p','s'};<a name="44" href="#44">44</a> <a name="45" href="#45">45</a> <strong>protected</strong> <strong>static</strong> <strong>final</strong> BitSet lax_rel_segment = <strong>new</strong> BitSet(256);<a name="46" href="#46">46</a> <em class="comment">// Static initializer for lax_rel_segment</em><a name="47" href="#47">47</a> <strong>static</strong> {<a name="48" href="#48">48</a> lax_rel_segment.or(rel_segment);<a name="49" href="#49">49</a> lax_rel_segment.set(':'); <em class="comment">// allow ':'</em><a name="50" href="#50">50</a> <em class="comment">// TODO: add additional allowances as need is demonstrated</em><a name="51" href="#51">51</a> }<a name="52" href="#52">52</a> <a name="53" href="#53">53</a> <strong>protected</strong> <strong>static</strong> <strong>final</strong> BitSet lax_abs_path = <strong>new</strong> BitSet(256);<a name="54" href="#54">54</a> <strong>static</strong> {<a name="55" href="#55">55</a> lax_abs_path.or(abs_path);<a name="56" href="#56">56</a> lax_abs_path.set('|'); <em class="comment">// tests indicate Firefox (1.0.6) doesn't escape.</em><a name="57" href="#57">57</a> }<a name="58" href="#58">58</a> <a name="59" href="#59">59</a> <strong>protected</strong> <strong>static</strong> <strong>final</strong> BitSet lax_query = <strong>new</strong> BitSet(256);<a name="60" href="#60">60</a> <strong>static</strong> {<a name="61" href="#61">61</a> lax_query.or(query);<a name="62" href="#62">62</a> lax_query.set('{'); <em class="comment">// tests indicate FF doesn't escape { in query</em><a name="63" href="#63">63</a> lax_query.set('}'); <em class="comment">// tests indicate FF doesn't escape } in query</em><a name="64" href="#64">64</a> lax_query.set('|'); <em class="comment">// tests indicate FF doesn't escape | in query</em><a name="65" href="#65">65</a> lax_query.set('['); <em class="comment">// tests indicate FF doesn't escape [ in query</em><a name="66" href="#66">66</a> lax_query.set(']'); <em class="comment">// tests indicate FF doesn't escape ] in query</em><a name="67" href="#67">67</a> lax_query.set('^'); <em class="comment">// tests indicate FF doesn't escape ^ in query</em><a name="68" href="#68">68</a> }<a name="69" href="#69">69</a> <a name="70" href="#70">70</a> <em class="comment">// passthrough initializers</em><a name="71" href="#71">71</a> <strong>public</strong> <a href="../../../org/archive/net/LaxURI.html">LaxURI</a>(String uri, <strong>boolean</strong> escaped, String charset)<a name="72" href="#72">72</a> throws URIException {<a name="73" href="#73">73</a> <strong>super</strong>(uri,escaped,charset);<a name="74" href="#74">74</a> }<a name="75" href="#75">75</a> <strong>public</strong> <a href="../../../org/archive/net/LaxURI.html">LaxURI</a>(URI base, URI relative) throws URIException {<a name="76" href="#76">76</a> <strong>super</strong>(base,relative);<a name="77" href="#77">77</a> }<a name="78" href="#78">78</a> <strong>public</strong> <a href="../../../org/archive/net/LaxURI.html">LaxURI</a>(String uri, <strong>boolean</strong> escaped) throws URIException {<a name="79" href="#79">79</a> <strong>super</strong>(uri,escaped);<a name="80" href="#80">80</a> }<a name="81" href="#81">81</a> <strong>public</strong> <a href="../../../org/archive/net/LaxURI.html">LaxURI</a>() {<a name="82" href="#82">82</a> <strong>super</strong>();<a name="83" href="#83">83</a> }<a name="84" href="#84">84</a> <a name="85" href="#85">85</a> <em class="comment">// overridden to use this class's static decode()</em><a name="86" href="#86">86</a> <strong>public</strong> String getURI() throws URIException {<a name="87" href="#87">87</a> <strong>return</strong> (_uri == <strong>null</strong>) ? <strong>null</strong> : decode(_uri, getProtocolCharset());<a name="88" href="#88">88</a> }<a name="89" href="#89">89</a> <a name="90" href="#90">90</a> <em class="comment">// overridden to use this class's static decode()</em><a name="91" href="#91">91</a> <strong>public</strong> String getPath() throws URIException {<a name="92" href="#92">92</a> <strong>char</strong>[] p = getRawPath();<a name="93" href="#93">93</a> <strong>return</strong> (p == <strong>null</strong>) ? <strong>null</strong> : decode(p, getProtocolCharset());<a name="94" href="#94">94</a> }<a name="95" href="#95">95</a> <a name="96" href="#96">96</a> <em class="comment">// overridden to use this class's static decode()</em><a name="97" href="#97">97</a> <strong>public</strong> String getPathQuery() throws URIException {<a name="98" href="#98">98</a> <strong>char</strong>[] rawPathQuery = getRawPathQuery();<a name="99" href="#99">99</a> <strong>return</strong> (rawPathQuery == <strong>null</strong>) ? <strong>null</strong> : decode(rawPathQuery,<a name="100" href="#100">100</a> getProtocolCharset());<a name="101" href="#101">101</a> }<a name="102" href="#102">102</a> <em class="comment">// overridden to use this class's static decode()</em><a name="103" href="#103">103</a> <strong>protected</strong> <strong>static</strong> String decode(<strong>char</strong>[] component, String <strong>char</strong>set)<a name="104" href="#104">104</a> throws URIException {<a name="105" href="#105">105</a> <strong>if</strong> (component == <strong>null</strong>) {<a name="106" href="#106">106</a> <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<a name="107" href="#107">107</a> <span class="string">"Component array of chars may not be null"</span>);<a name="108" href="#108">108</a> }<a name="109" href="#109">109</a> <strong>return</strong> decode(<strong>new</strong> String(component), charset);<a name="110" href="#110">110</a> }<a name="111" href="#111">111</a> <a name="112" href="#112">112</a> <em class="comment">// overridden to use IA's LaxURLCodec, which never throws DecoderException</em><a name="113" href="#113">113</a> <strong>protected</strong> <strong>static</strong> String decode(String component, String charset)<a name="114" href="#114">114</a> throws URIException {<a name="115" href="#115">115</a> <strong>if</strong> (component == <strong>null</strong>) {<a name="116" href="#116">116</a> <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<a name="117" href="#117">117</a> <span class="string">"Component array of chars may not be null"</span>);<a name="118" href="#118">118</a> }<a name="119" href="#119">119</a> byte[] rawdata = <strong>null</strong>;<a name="120" href="#120">120</a> <em class="comment">// try {</em><a name="121" href="#121">121</a> rawdata = LaxURLCodec.decodeUrlLoose(EncodingUtil<a name="122" href="#122">122</a> .getAsciiBytes(component));<a name="123" href="#123">123</a> <em class="comment">// } catch (DecoderException e) {</em><a name="124" href="#124">124</a> <em class="comment">// throw new URIException(e.getMessage());</em><a name="125" href="#125">125</a> <em class="comment">// }</em><a name="126" href="#126">126</a> <strong>return</strong> EncodingUtil.getString(rawdata, charset);<a name="127" href="#127">127</a> }<a name="128" href="#128">128</a> <a name="129" href="#129">129</a> <em class="comment">// overidden to lax() the acceptable-char BitSet passed in</em><a name="130" href="#130">130</a> <strong>protected</strong> <strong>boolean</strong> validate(<strong>char</strong>[] component, BitSet generous) {<a name="131" href="#131">131</a> <strong>return</strong> <strong>super</strong>.validate(component, lax(generous));<a name="132" href="#132">132</a> }<a name="133" href="#133">133</a> <a name="134" href="#134">134</a> <em class="comment">// overidden to lax() the acceptable-char BitSet passed in</em><a name="135" href="#135">135</a> <strong>protected</strong> <strong>boolean</strong> validate(<strong>char</strong>[] component, <strong>int</strong> soffset, <strong>int</strong> eoffset,<a name="136" href="#136">136</a> BitSet generous) {<a name="137" href="#137">137</a> <strong>return</strong> <strong>super</strong>.validate(component, soffset, eoffset, lax(generous));<a name="138" href="#138">138</a> }<a name="139" href="#139">139</a> <a name="140" href="#140">140</a> <em>/**<em>*</em></em><a name="141" href="#141">141</a> <em> * Given a BitSet -- typically one of the URI superclass's</em><a name="142" href="#142">142</a> <em> * predefined static variables -- possibly replace it with</em><a name="143" href="#143">143</a> <em> * a more-lax version to better match the character sets</em><a name="144" href="#144">144</a> <em> * actually left unencoded in web browser requests</em><a name="145" href="#145">145</a> <em> * </em>⌨️ 快捷键说明
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