hxt-8.0.0: doc/hdoc/src/Text-XML-HXT-IO-GetHTTPNative.html
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<pre><a name="line-1"></a><span class='comment'>-- ------------------------------------------------------------</span>
<a name="line-2"></a><span class='comment'>--</span>
<a name="line-3"></a><span class='comment'>-- GET for native http access</span>
<a name="line-4"></a><span class='comment'>--</span>
<a name="line-5"></a><span class='comment'>-- Version : $Id: GetHTTPNative.hs,v 1.2 2005/04/14 12:52:52 hxml Exp $</span>
<a name="line-6"></a>
<a name="line-7"></a><span class='keyword'>module</span> <span class='conid'>Text</span><span class='varop'>.</span><span class='conid'>XML</span><span class='varop'>.</span><span class='conid'>HXT</span><span class='varop'>.</span><span class='conid'>IO</span><span class='varop'>.</span><span class='conid'>GetHTTPNative</span>
<a name="line-8"></a> <span class='layout'>(</span> <span class='keyword'>module</span> <span class='conid'>Text</span><span class='varop'>.</span><span class='conid'>XML</span><span class='varop'>.</span><span class='conid'>HXT</span><span class='varop'>.</span><span class='conid'>IO</span><span class='varop'>.</span><span class='conid'>GetHTTPNative</span>
<a name="line-9"></a> <span class='layout'>)</span>
<a name="line-10"></a>
<a name="line-11"></a><span class='keyword'>where</span>
<a name="line-12"></a>
<a name="line-13"></a><span class='keyword'>import</span> <span class='conid'>Text</span><span class='varop'>.</span><span class='conid'>XML</span><span class='varop'>.</span><span class='conid'>HXT</span><span class='varop'>.</span><span class='conid'>DOM</span><span class='varop'>.</span><span class='conid'>XmlKeywords</span>
<a name="line-14"></a><span class='keyword'>import</span> <span class='conid'>Text</span><span class='varop'>.</span><span class='conid'>XML</span><span class='varop'>.</span><span class='conid'>HXT</span><span class='varop'>.</span><span class='conid'>DOM</span><span class='varop'>.</span><span class='conid'>Util</span> <span class='layout'>(</span> <span class='varid'>stringTrim</span> <span class='layout'>)</span>
<a name="line-15"></a><span class='keyword'>import</span> <span class='conid'>Text</span><span class='varop'>.</span><span class='conid'>XML</span><span class='varop'>.</span><span class='conid'>HXT</span><span class='varop'>.</span><span class='conid'>Parser</span><span class='varop'>.</span><span class='conid'>ProtocolHandlerUtil</span> <span class='layout'>(</span> <span class='varid'>parseContentType</span> <span class='layout'>)</span>
<a name="line-16"></a>
<a name="line-17"></a><span class='keyword'>import</span> <span class='conid'>Text</span><span class='varop'>.</span><span class='conid'>ParserCombinators</span><span class='varop'>.</span><span class='conid'>Parsec</span> <span class='layout'>(</span> <span class='varid'>parse</span> <span class='layout'>)</span>
<a name="line-18"></a>
<a name="line-19"></a><span class='keyword'>import</span> <span class='conid'>Data</span><span class='varop'>.</span><span class='conid'>Maybe</span> <span class='layout'>(</span> <span class='varid'>fromJust</span>
<a name="line-20"></a> <span class='layout'>)</span>
<a name="line-21"></a><span class='keyword'>import</span> <span class='conid'>System</span><span class='varop'>.</span><span class='conid'>IO</span> <span class='layout'>(</span> <span class='varid'>hPutStrLn</span>
<a name="line-22"></a> <span class='layout'>,</span> <span class='varid'>stderr</span>
<a name="line-23"></a> <span class='layout'>)</span>
<a name="line-24"></a><span class='keyword'>import</span> <span class='conid'>System</span><span class='varop'>.</span><span class='conid'>IO</span><span class='varop'>.</span><span class='conid'>Error</span> <span class='layout'>(</span> <span class='varid'>ioeGetErrorString</span>
<a name="line-25"></a> <span class='layout'>,</span> <span class='varid'>try</span>
<a name="line-26"></a> <span class='layout'>)</span>
<a name="line-27"></a><span class='keyword'>import</span> <span class='conid'>Network</span><span class='varop'>.</span><span class='conid'>Browser</span> <span class='layout'>(</span> <span class='conid'>Proxy</span><span class='layout'>(</span><span class='keyglyph'>..</span><span class='layout'>)</span>
<a name="line-28"></a> <span class='layout'>,</span> <span class='varid'>browse</span>
<a name="line-29"></a> <span class='layout'>,</span> <span class='varid'>defaultGETRequest</span>
<a name="line-30"></a> <span class='layout'>,</span> <span class='varid'>request</span>
<a name="line-31"></a> <span class='layout'>,</span> <span class='varid'>setOutHandler</span>
<a name="line-32"></a> <span class='layout'>,</span> <span class='varid'>setErrHandler</span>
<a name="line-33"></a> <span class='layout'>,</span> <span class='varid'>setProxy</span>
<a name="line-34"></a> <span class='layout'>)</span>
<a name="line-35"></a><span class='keyword'>import</span> <span class='conid'>Network</span><span class='varop'>.</span><span class='conid'>HTTP</span> <span class='layout'>(</span> <span class='conid'>Header</span><span class='layout'>(</span><span class='keyglyph'>..</span><span class='layout'>)</span>
<a name="line-36"></a> <span class='layout'>,</span> <span class='conid'>HeaderName</span><span class='layout'>(</span><span class='keyglyph'>..</span><span class='layout'>)</span>
<a name="line-37"></a> <span class='layout'>,</span> <span class='conid'>Response</span><span class='layout'>(</span><span class='keyglyph'>..</span><span class='layout'>)</span>
<a name="line-38"></a> <span class='layout'>,</span> <span class='varid'>httpVersion</span>
<a name="line-39"></a> <span class='layout'>)</span>
<a name="line-40"></a><span class='keyword'>import</span> <span class='conid'>Network</span><span class='varop'>.</span><span class='conid'>Socket</span> <span class='layout'>(</span> <span class='varid'>withSocketsDo</span>
<a name="line-41"></a> <span class='layout'>)</span>
<a name="line-42"></a><span class='keyword'>import</span> <span class='conid'>Network</span><span class='varop'>.</span><span class='conid'>URI</span> <span class='layout'>(</span> <span class='conid'>URI</span>
<a name="line-43"></a> <span class='layout'>,</span> <span class='varid'>parseURIReference</span>
<a name="line-44"></a> <span class='layout'>)</span>
<a name="line-45"></a>
<a name="line-46"></a><span class='comment'>-- ------------------------------------------------------------</span>
<a name="line-47"></a><span class='comment'>--</span>
<a name="line-48"></a><span class='comment'>-- the native http protocol handler</span>
<a name="line-49"></a>
<a name="line-50"></a><span class='comment'>-- ------------------------------------------------------------</span>
<a name="line-51"></a><span class='comment'>--</span>
<a name="line-52"></a><span class='comment'>-- the http protocol handler, haskell implementation</span>
<a name="line-53"></a>
<a name="line-54"></a><a name="getCont"></a><span class='definition'>getCont</span> <span class='keyglyph'>::</span> <span class='conid'>String</span> <span class='keyglyph'>-></span> <span class='conid'>String</span> <span class='keyglyph'>-></span> <span class='conid'>IO</span> <span class='layout'>(</span><span class='conid'>Either</span> <span class='conid'>String</span> <span class='layout'>(</span><span class='keyglyph'>[</span><span class='layout'>(</span><span class='conid'>String</span><span class='layout'>,</span> <span class='conid'>String</span><span class='layout'>)</span><span class='keyglyph'>]</span><span class='layout'>,</span> <span class='conid'>String</span><span class='layout'>)</span><span class='layout'>)</span>
<a name="line-55"></a><span class='definition'>getCont</span> <span class='varid'>uri</span> <span class='varid'>proxy</span>
<a name="line-56"></a> <span class='keyglyph'>=</span> <span class='keyword'>do</span>
<a name="line-57"></a> <span class='varid'>res</span> <span class='keyglyph'><-</span> <span class='varid'>try</span> <span class='layout'>(</span><span class='varid'>getHttp</span> <span class='conid'>False</span> <span class='varid'>uri1</span> <span class='varid'>proxy</span><span class='layout'>)</span>
<a name="line-58"></a> <span class='varid'>either</span> <span class='varid'>processError</span> <span class='varid'>processResponse</span> <span class='varid'>res</span>
<a name="line-59"></a> <span class='keyword'>where</span>
<a name="line-60"></a> <span class='varid'>uri1</span> <span class='keyglyph'>=</span> <span class='varid'>fromJust</span> <span class='layout'>(</span><span class='varid'>parseURIReference</span> <span class='varid'>uri</span><span class='layout'>)</span>
<a name="line-61"></a>
<a name="line-62"></a> <span class='varid'>processError</span> <span class='varid'>e</span>
<a name="line-63"></a> <span class='keyglyph'>=</span> <span class='varid'>return</span> <span class='varop'>$</span> <span class='conid'>Left</span> <span class='layout'>(</span> <span class='str'>"http error when requesting URI "</span>
<a name="line-64"></a> <span class='varop'>++</span> <span class='varid'>show</span> <span class='varid'>uri</span>
<a name="line-65"></a> <span class='varop'>++</span> <span class='str'>": "</span>
<a name="line-66"></a> <span class='varop'>++</span> <span class='varid'>ioeGetErrorString</span> <span class='varid'>e</span>
<a name="line-67"></a> <span class='varop'>++</span> <span class='str'>" (perhaps server does not understand HTTP/1.1) "</span>
<a name="line-68"></a> <span class='layout'>)</span>
<a name="line-69"></a>
<a name="line-70"></a> <span class='varid'>processResponse</span> <span class='varid'>response</span>
<a name="line-71"></a> <span class='keyglyph'>|</span> <span class='varid'>st</span> <span class='varop'>>=</span> <span class='num'>200</span> <span class='varop'>&&</span> <span class='varid'>st</span> <span class='varop'><</span> <span class='num'>300</span>
<a name="line-72"></a> <span class='keyglyph'>=</span> <span class='varid'>return</span> <span class='varop'>$</span> <span class='conid'>Right</span> <span class='layout'>(</span><span class='varid'>al</span><span class='layout'>,</span> <span class='varid'>cs</span><span class='layout'>)</span>
<a name="line-73"></a>
<a name="line-74"></a> <span class='keyglyph'>|</span> <span class='varid'>otherwise</span>
<a name="line-75"></a> <span class='keyglyph'>=</span> <span class='varid'>return</span> <span class='varop'>$</span> <span class='conid'>Left</span> <span class='layout'>(</span> <span class='str'>"http error when accessing URI "</span>
<a name="line-76"></a> <span class='varop'>++</span> <span class='varid'>show</span> <span class='varid'>uri</span>
<a name="line-77"></a> <span class='varop'>++</span> <span class='str'>": "</span>
<a name="line-78"></a> <span class='varop'>++</span> <span class='varid'>show</span> <span class='varid'>st</span>
<a name="line-79"></a> <span class='varop'>++</span> <span class='str'>" "</span>
<a name="line-80"></a> <span class='varop'>++</span> <span class='varid'>rspReason</span> <span class='varid'>response</span>
<a name="line-81"></a> <span class='layout'>)</span>
<a name="line-82"></a> <span class='keyword'>where</span>
<a name="line-83"></a> <span class='varid'>al</span> <span class='keyglyph'>=</span> <span class='varid'>convertResponseHeaders</span> <span class='varid'>response</span>
<a name="line-84"></a> <span class='varid'>cs</span> <span class='keyglyph'>=</span> <span class='varid'>rspBody</span> <span class='varid'>response</span>
<a name="line-85"></a> <span class='varid'>st</span> <span class='keyglyph'>=</span> <span class='varid'>convertResponseStatus</span> <span class='layout'>(</span><span class='varid'>rspCode</span> <span class='varid'>response</span><span class='layout'>)</span>
<a name="line-86"></a>
<a name="line-87"></a> <span class='varid'>getHttp</span> <span class='keyglyph'>::</span> <span class='conid'>Bool</span> <span class='keyglyph'>-></span> <span class='conid'>URI</span> <span class='keyglyph'>-></span> <span class='conid'>String</span> <span class='keyglyph'>-></span> <span class='conid'>IO</span> <span class='conid'>Response</span>
<a name="line-88"></a> <span class='varid'>getHttp</span> <span class='varid'>trc'</span> <span class='varid'>uri'</span> <span class='varid'>proxy'</span>
<a name="line-89"></a> <span class='keyglyph'>=</span> <span class='varid'>withSocketsDo</span> <span class='varop'>$</span>
<a name="line-90"></a> <span class='varid'>browse</span> <span class='layout'>(</span> <span class='keyword'>do</span>
<a name="line-91"></a> <span class='varid'>setOutHandler</span> <span class='layout'>(</span><span class='varid'>trcFct</span><span class='layout'>)</span>
<a name="line-92"></a> <span class='varid'>setErrHandler</span> <span class='layout'>(</span><span class='varid'>trcFct</span><span class='layout'>)</span>
<a name="line-93"></a>
<a name="line-94"></a> <span class='varid'>setProxy'</span> <span class='varid'>proxy'</span>
<a name="line-95"></a> <span class='layout'>(</span><span class='sel'>_ruri</span><span class='layout'>,</span> <span class='varid'>rsp</span><span class='layout'>)</span> <span class='keyglyph'><-</span> <span class='varid'>request</span> <span class='varid'>rq</span>
<a name="line-96"></a> <span class='varid'>return</span> <span class='varid'>rsp</span>
<a name="line-97"></a> <span class='layout'>)</span>
<a name="line-98"></a> <span class='keyword'>where</span>
<a name="line-99"></a> <span class='varid'>trcFct</span> <span class='varid'>s</span>
<a name="line-100"></a> <span class='keyglyph'>|</span> <span class='varid'>trc'</span>
<a name="line-101"></a> <span class='keyglyph'>=</span> <span class='varid'>hPutStrLn</span> <span class='varid'>stderr</span> <span class='layout'>(</span><span class='str'>"-- (5) http: "</span> <span class='varop'>++</span> <span class='varid'>s</span><span class='layout'>)</span>
<a name="line-102"></a> <span class='keyglyph'>|</span> <span class='varid'>otherwise</span>
<a name="line-103"></a> <span class='keyglyph'>=</span> <span class='varid'>return</span> <span class='conid'>()</span>
<a name="line-104"></a>
<a name="line-105"></a> <span class='varid'>rq</span> <span class='keyglyph'>=</span> <span class='varid'>defaultGETRequest</span> <span class='varid'>uri'</span>
<a name="line-106"></a>
<a name="line-107"></a> <span class='varid'>setProxy'</span> <span class='str'>""</span> <span class='keyglyph'>=</span> <span class='varid'>return</span> <span class='conid'>()</span>
<a name="line-108"></a> <span class='varid'>setProxy'</span> <span class='varid'>p</span> <span class='keyglyph'>=</span> <span class='varid'>setProxy</span> <span class='layout'>(</span><span class='conid'>Proxy</span> <span class='varid'>p</span> <span class='conid'>Nothing</span><span class='layout'>)</span>
<a name="line-109"></a>
<a name="line-110"></a> <span class='varid'>convertResponseStatus</span> <span class='keyglyph'>::</span> <span class='layout'>(</span><span class='conid'>Int</span><span class='layout'>,</span> <span class='conid'>Int</span><span class='layout'>,</span> <span class='conid'>Int</span><span class='layout'>)</span> <span class='keyglyph'>-></span> <span class='conid'>Int</span>
<a name="line-111"></a> <span class='varid'>convertResponseStatus</span> <span class='layout'>(</span><span class='varid'>a</span><span class='layout'>,</span> <span class='varid'>b</span><span class='layout'>,</span> <span class='varid'>c</span><span class='layout'>)</span>
<a name="line-112"></a> <span class='keyglyph'>=</span> <span class='num'>100</span> <span class='varop'>*</span> <span class='varid'>a</span> <span class='varop'>+</span> <span class='num'>10</span> <span class='varop'>*</span> <span class='varid'>b</span> <span class='varop'>+</span> <span class='varid'>c</span>
<a name="line-113"></a>
<a name="line-114"></a> <span class='varid'>convertResponseHeaders</span> <span class='keyglyph'>::</span> <span class='conid'>Response</span> <span class='keyglyph'>-></span> <span class='keyglyph'>[</span><span class='layout'>(</span><span class='conid'>String</span><span class='layout'>,</span> <span class='conid'>String</span><span class='layout'>)</span><span class='keyglyph'>]</span>
<a name="line-115"></a> <span class='varid'>convertResponseHeaders</span> <span class='varid'>r'</span>
<a name="line-116"></a> <span class='keyglyph'>=</span> <span class='varid'>cvResponseCode</span> <span class='layout'>(</span><span class='varid'>rspCode</span> <span class='varid'>r'</span><span class='layout'>)</span>
<a name="line-117"></a> <span class='varop'>++</span>
<a name="line-118"></a> <span class='varid'>cvResponseReason</span> <span class='layout'>(</span><span class='varid'>rspReason</span> <span class='varid'>r'</span><span class='layout'>)</span>
<a name="line-119"></a> <span class='varop'>++</span>
<a name="line-120"></a> <span class='varid'>cvResponseHeaders</span> <span class='layout'>(</span><span class='varid'>rspHeaders</span> <span class='varid'>r'</span><span class='layout'>)</span>
<a name="line-121"></a> <span class='keyword'>where</span>
<a name="line-122"></a> <span class='varid'>cvResponseCode</span> <span class='keyglyph'>::</span> <span class='layout'>(</span><span class='conid'>Int</span><span class='layout'>,</span> <span class='conid'>Int</span><span class='layout'>,</span> <span class='conid'>Int</span><span class='layout'>)</span> <span class='keyglyph'>-></span> <span class='keyglyph'>[</span><span class='layout'>(</span><span class='conid'>String</span><span class='layout'>,</span> <span class='conid'>String</span><span class='layout'>)</span><span class='keyglyph'>]</span>
<a name="line-123"></a> <span class='varid'>cvResponseCode</span> <span class='varid'>st'</span>
<a name="line-124"></a> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span> <span class='layout'>(</span><span class='varid'>transferStatus</span><span class='layout'>,</span> <span class='varid'>show</span> <span class='layout'>(</span><span class='varid'>convertResponseStatus</span> <span class='varid'>st'</span><span class='layout'>)</span><span class='layout'>)</span>
<a name="line-125"></a> <span class='layout'>,</span> <span class='layout'>(</span><span class='varid'>transferVersion</span><span class='layout'>,</span> <span class='varid'>httpVersion</span><span class='layout'>)</span>
<a name="line-126"></a> <span class='keyglyph'>]</span>
<a name="line-127"></a>
<a name="line-128"></a> <span class='varid'>cvResponseReason</span> <span class='keyglyph'>::</span> <span class='conid'>String</span> <span class='keyglyph'>-></span> <span class='keyglyph'>[</span><span class='layout'>(</span><span class='conid'>String</span><span class='layout'>,</span> <span class='conid'>String</span><span class='layout'>)</span><span class='keyglyph'>]</span>
<a name="line-129"></a> <span class='varid'>cvResponseReason</span> <span class='varid'>r''</span>
<a name="line-130"></a> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span> <span class='layout'>(</span><span class='varid'>transferMessage</span><span class='layout'>,</span> <span class='layout'>(</span><span class='varid'>stringTrim</span> <span class='varid'>r''</span><span class='layout'>)</span><span class='layout'>)</span> <span class='keyglyph'>]</span>
<a name="line-131"></a>
<a name="line-132"></a> <span class='varid'>cvResponseHeaders</span> <span class='keyglyph'>::</span> <span class='keyglyph'>[</span><span class='conid'>Header</span><span class='keyglyph'>]</span> <span class='keyglyph'>-></span> <span class='keyglyph'>[</span><span class='layout'>(</span><span class='conid'>String</span><span class='layout'>,</span> <span class='conid'>String</span><span class='layout'>)</span><span class='keyglyph'>]</span>
<a name="line-133"></a> <span class='varid'>cvResponseHeaders</span>
<a name="line-134"></a> <span class='keyglyph'>=</span> <span class='varid'>concatMap</span> <span class='varid'>cvResponseHeader</span>
<a name="line-135"></a>
<a name="line-136"></a> <span class='varid'>cvResponseHeader</span> <span class='keyglyph'>::</span> <span class='conid'>Header</span> <span class='keyglyph'>-></span> <span class='keyglyph'>[</span><span class='layout'>(</span><span class='conid'>String</span><span class='layout'>,</span> <span class='conid'>String</span><span class='layout'>)</span><span class='keyglyph'>]</span>
<a name="line-137"></a> <span class='varid'>cvResponseHeader</span> <span class='layout'>(</span><span class='conid'>Header</span> <span class='varid'>name</span> <span class='varid'>value</span><span class='layout'>)</span>
<a name="line-138"></a> <span class='keyglyph'>|</span> <span class='varid'>name</span> <span class='varop'>==</span> <span class='conid'>HdrContentType</span>
<a name="line-139"></a> <span class='keyglyph'>=</span> <span class='layout'>(</span> <span class='keyword'>case</span> <span class='layout'>(</span><span class='varid'>parse</span> <span class='varid'>parseContentType</span> <span class='layout'>(</span><span class='varid'>show</span> <span class='conid'>HdrContentType</span><span class='layout'>)</span> <span class='varid'>value</span><span class='layout'>)</span> <span class='keyword'>of</span>
<a name="line-140"></a> <span class='conid'>Right</span> <span class='varid'>res</span> <span class='keyglyph'>-></span> <span class='varid'>res</span>
<a name="line-141"></a> <span class='conid'>Left</span> <span class='keyword'>_</span> <span class='keyglyph'>-></span> <span class='conid'>[]</span>
<a name="line-142"></a> <span class='layout'>)</span>
<a name="line-143"></a> <span class='varop'>++</span>
<a name="line-144"></a> <span class='varid'>addHttpAttr</span>
<a name="line-145"></a> <span class='keyglyph'>|</span> <span class='varid'>otherwise</span>
<a name="line-146"></a> <span class='keyglyph'>=</span> <span class='varid'>addHttpAttr</span>
<a name="line-147"></a> <span class='keyword'>where</span>
<a name="line-148"></a> <span class='varid'>addHttpAttr</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span> <span class='layout'>(</span><span class='varid'>httpPrefix</span> <span class='varop'>++</span> <span class='layout'>(</span><span class='varid'>show</span> <span class='varid'>name</span><span class='layout'>)</span><span class='layout'>,</span> <span class='varid'>value</span><span class='layout'>)</span> <span class='keyglyph'>]</span>
<a name="line-149"></a>
<a name="line-150"></a>
<a name="line-151"></a><span class='comment'>-- ------------------------------------------------------------</span>
</pre></body>
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