hxt-8.1.0: doc/hdoc/src/Text-XML-HXT-IO-GetHTTPLibCurl.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 http access with curl</span>
<a name="line-4"></a><span class='comment'>--</span>
<a name="line-5"></a><span class='comment'>-- Version : $Id: GetHTTPCurl.hs,v 1.3 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'>GetHTTPLibCurl</span>
<a name="line-8"></a> <span class='layout'>(</span> <span class='varid'>getCont</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'>Control</span><span class='varop'>.</span><span class='conid'>Arrow</span>
<a name="line-14"></a> <span class='layout'>(</span> <span class='varid'>first</span> <span class='layout'>)</span>
<a name="line-15"></a><span class='keyword'>import</span> <span class='conid'>Control</span><span class='varop'>.</span><span class='conid'>Concurrent</span><span class='varop'>.</span><span class='conid'>MVar</span>
<a name="line-16"></a><span class='keyword'>import</span> <span class='conid'>Control</span><span class='varop'>.</span><span class='conid'>Monad</span>
<a name="line-17"></a> <span class='layout'>(</span> <span class='varid'>when</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'>Char</span>
<a name="line-20"></a> <span class='layout'>(</span> <span class='varid'>isDigit</span>
<a name="line-21"></a> <span class='layout'>,</span> <span class='varid'>toLower</span>
<a name="line-22"></a> <span class='layout'>)</span>
<a name="line-23"></a><span class='keyword'>import</span> <span class='conid'>Data</span><span class='varop'>.</span><span class='conid'>List</span>
<a name="line-24"></a> <span class='layout'>(</span> <span class='varid'>isPrefixOf</span>
<a name="line-25"></a> <span class='layout'>)</span>
<a name="line-26"></a>
<a name="line-27"></a><span class='keyword'>import</span> <span class='conid'>Network</span><span class='varop'>.</span><span class='conid'>Curl</span>
<a name="line-28"></a>
<a name="line-29"></a><span class='keyword'>import</span> <span class='conid'>System</span><span class='varop'>.</span><span class='conid'>IO</span>
<a name="line-30"></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'>Unsafe</span>
<a name="line-31"></a> <span class='layout'>(</span> <span class='varid'>unsafePerformIO</span>
<a name="line-32"></a> <span class='layout'>)</span>
<a name="line-33"></a>
<a name="line-34"></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>
<a name="line-35"></a> <span class='layout'>(</span> <span class='varid'>parse</span>
<a name="line-36"></a> <span class='layout'>)</span>
<a name="line-37"></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-38"></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'>XmlOptions</span>
<a name="line-39"></a> <span class='layout'>(</span> <span class='varid'>isTrueValue</span>
<a name="line-40"></a> <span class='layout'>)</span>
<a name="line-41"></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>
<a name="line-42"></a> <span class='layout'>(</span> <span class='varid'>parseContentType</span>
<a name="line-43"></a> <span class='layout'>)</span>
<a name="line-44"></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'>Version</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 global flag for initializing curl in the 1. call</span>
<a name="line-49"></a>
<a name="line-50"></a><a name="isInitCurl"></a><span class='definition'>isInitCurl</span> <span class='keyglyph'>::</span> <span class='conid'>MVar</span> <span class='conid'>Bool</span>
<a name="line-51"></a><span class='definition'>isInitCurl</span> <span class='keyglyph'>=</span> <span class='varid'>unsafePerformIO</span> <span class='varop'>$</span> <span class='varid'>newMVar</span> <span class='conid'>False</span>
<a name="line-52"></a>
<a name="line-53"></a><a name="initCurl"></a><span class='definition'>initCurl</span> <span class='keyglyph'>::</span> <span class='conid'>IO</span> <span class='conid'>()</span>
<a name="line-54"></a><span class='definition'>initCurl</span>
<a name="line-55"></a> <span class='keyglyph'>=</span> <span class='keyword'>do</span>
<a name="line-56"></a> <span class='varid'>i</span> <span class='keyglyph'><-</span> <span class='varid'>takeMVar</span> <span class='varid'>isInitCurl</span>
<a name="line-57"></a> <span class='varid'>when</span> <span class='layout'>(</span><span class='varid'>not</span> <span class='varid'>i</span><span class='layout'>)</span> <span class='layout'>(</span> <span class='keyword'>do</span>
<a name="line-58"></a> <span class='varid'>curl_global_init</span> <span class='num'>3</span>
<a name="line-59"></a> <span class='varid'>return</span> <span class='conid'>()</span>
<a name="line-60"></a> <span class='layout'>)</span>
<a name="line-61"></a> <span class='varid'>putMVar</span> <span class='varid'>isInitCurl</span> <span class='conid'>True</span>
<a name="line-62"></a>
<a name="line-63"></a><span class='comment'>-- ------------------------------------------------------------</span>
<a name="line-64"></a><span class='comment'>--</span>
<a name="line-65"></a><span class='comment'>-- the http protocol handler implemented by calling libcurl</span>
<a name="line-66"></a><span class='comment'>-- (<<a href="http://curl.haxx.se/">http://curl.haxx.se/</a>>)</span>
<a name="line-67"></a><span class='comment'>-- via the curl binding</span>
<a name="line-68"></a><span class='comment'>-- <<a href="http://hackage.haskell.org/cgi-bin/hackage-scripts/package/curl">http://hackage.haskell.org/cgi-bin/hackage-scripts/package/curl</a>></span>
<a name="line-69"></a><span class='comment'>-- This function tries to support mostly all curl options concerning HTTP requests.</span>
<a name="line-70"></a><span class='comment'>-- The naming convetion is as follows: A curl option must be prefixed by the string</span>
<a name="line-71"></a><span class='comment'>-- \"curl\" and then written exactly as described in the curl man page</span>
<a name="line-72"></a><span class='comment'>-- (<<a href="http://curl.haxx.se/docs/manpage.html">http://curl.haxx.se/docs/manpage.html</a>>).</span>
<a name="line-73"></a><span class='comment'>-- Example:</span>
<a name="line-74"></a><span class='comment'>--</span>
<a name="line-75"></a><span class='comment'>-- > getCont [("curl--user-agent","My first HXT app"),("curl-e","<a href="http://the.referer.url/">http://the.referer.url/</a>")] "<a href="http://...">http://...</a>"</span>
<a name="line-76"></a><span class='comment'>--</span>
<a name="line-77"></a><span class='comment'>-- will set the user agent and the referer URL for this request.</span>
<a name="line-78"></a>
<a name="line-79"></a><a name="getCont"></a><span class='definition'>getCont</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> <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-80"></a><span class='definition'>getCont</span> <span class='varid'>options</span> <span class='varid'>uri</span> <span class='comment'>-- curlOptions uri proxy</span>
<a name="line-81"></a> <span class='keyglyph'>=</span> <span class='keyword'>do</span>
<a name="line-82"></a> <span class='varid'>initCurl</span>
<a name="line-83"></a> <span class='varid'>resp</span> <span class='keyglyph'><-</span> <span class='varid'>curlGetResponse</span> <span class='varid'>uri</span> <span class='varid'>curlOptions</span>
<a name="line-84"></a> <span class='varid'>return</span> <span class='varop'>$</span> <span class='varid'>evalResponse</span> <span class='varid'>resp</span>
<a name="line-85"></a> <span class='keyword'>where</span>
<a name="line-86"></a> <span class='varid'>curlOptions</span> <span class='keyglyph'>=</span> <span class='varid'>concatMap</span> <span class='layout'>(</span><span class='varid'>uncurry</span> <span class='varid'>copt</span><span class='layout'>)</span> <span class='varid'>options</span> <span class='varop'>++</span> <span class='varid'>defaultOptions</span>
<a name="line-87"></a> <span class='varid'>defaultOptions</span>
<a name="line-88"></a> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span> <span class='conid'>CurlFailOnError</span> <span class='conid'>False</span>
<a name="line-89"></a> <span class='layout'>,</span> <span class='conid'>CurlHeader</span> <span class='conid'>True</span>
<a name="line-90"></a> <span class='layout'>,</span> <span class='conid'>CurlNoProgress</span> <span class='conid'>True</span>
<a name="line-91"></a> <span class='layout'>,</span> <span class='conid'>CurlFollowLocation</span> <span class='conid'>True</span>
<a name="line-92"></a> <span class='layout'>,</span> <span class='conid'>CurlUserAgent</span> <span class='layout'>(</span><span class='str'>"hxt/"</span> <span class='varop'>++</span> <span class='varid'>hxt_version</span> <span class='varop'>++</span> <span class='str'>" via libcurl"</span><span class='layout'>)</span>
<a name="line-93"></a> <span class='keyglyph'>]</span>
<a name="line-94"></a> <span class='varid'>evalResponse</span> <span class='varid'>r</span>
<a name="line-95"></a> <span class='keyglyph'>|</span> <span class='varid'>rc</span> <span class='varop'>/=</span> <span class='conid'>CurlOK</span>
<a name="line-96"></a> <span class='keyglyph'>=</span> <span class='conid'>Left</span> <span class='layout'>(</span> <span class='str'>"http error when requesting URI "</span>
<a name="line-97"></a> <span class='varop'>++</span> <span class='varid'>show</span> <span class='varid'>uri</span>
<a name="line-98"></a> <span class='varop'>++</span> <span class='str'>": (curl return code="</span> <span class='varop'>++</span> <span class='varid'>show</span> <span class='varid'>rc</span> <span class='varop'>++</span> <span class='str'>") "</span>
<a name="line-99"></a> <span class='layout'>)</span>
<a name="line-100"></a> <span class='keyglyph'>|</span> <span class='varid'>rs</span> <span class='varop'><</span> <span class='num'>200</span> <span class='varop'>&&</span> <span class='varid'>rs</span> <span class='varop'>>=</span> <span class='num'>300</span>
<a name="line-101"></a> <span class='keyglyph'>=</span> <span class='conid'>Left</span> <span class='layout'>(</span> <span class='str'>"http error when accessing URI "</span>
<a name="line-102"></a> <span class='varop'>++</span> <span class='varid'>show</span> <span class='varid'>uri</span>
<a name="line-103"></a> <span class='varop'>++</span> <span class='str'>": "</span>
<a name="line-104"></a> <span class='varop'>++</span> <span class='varid'>show</span> <span class='varid'>rsl</span>
<a name="line-105"></a> <span class='layout'>)</span>
<a name="line-106"></a> <span class='keyglyph'>|</span> <span class='varid'>otherwise</span>
<a name="line-107"></a> <span class='keyglyph'>=</span> <span class='conid'>Right</span> <span class='layout'>(</span> <span class='varid'>contentT</span> <span class='varop'>++</span> <span class='varid'>headers</span><span class='layout'>,</span> <span class='varid'>respBody</span> <span class='varid'>r</span>
<a name="line-108"></a> <span class='layout'>)</span>
<a name="line-109"></a> <span class='keyword'>where</span>
<a name="line-110"></a> <span class='varid'>headers</span>
<a name="line-111"></a> <span class='keyglyph'>=</span> <span class='varid'>map</span> <span class='layout'>(</span><span class='keyglyph'>\</span> <span class='layout'>(</span><span class='varid'>k</span><span class='layout'>,</span> <span class='varid'>v</span><span class='layout'>)</span> <span class='keyglyph'>-></span> <span class='layout'>(</span><span class='varid'>httpPrefix</span> <span class='varop'>++</span> <span class='varid'>k</span><span class='layout'>,</span> <span class='varid'>v</span><span class='layout'>)</span><span class='layout'>)</span> <span class='varid'>rsh</span>
<a name="line-112"></a> <span class='varop'>++</span> <span class='varid'>statusLine</span> <span class='layout'>(</span><span class='varid'>words</span> <span class='varid'>rsl</span><span class='layout'>)</span>
<a name="line-113"></a>
<a name="line-114"></a> <span class='varid'>contentT</span>
<a name="line-115"></a> <span class='keyglyph'>=</span> <span class='varid'>concat</span>
<a name="line-116"></a> <span class='varop'>.</span> <span class='varid'>map</span> <span class='layout'>(</span> <span class='varid'>either</span> <span class='layout'>(</span><span class='varid'>const</span> <span class='conid'>[]</span><span class='layout'>)</span> <span class='varid'>id</span>
<a name="line-117"></a> <span class='varop'>.</span> <span class='varid'>parse</span> <span class='varid'>parseContentType</span> <span class='str'>""</span>
<a name="line-118"></a> <span class='layout'>)</span>
<a name="line-119"></a> <span class='varop'>.</span> <span class='varid'>map</span> <span class='varid'>snd</span>
<a name="line-120"></a> <span class='varop'>.</span> <span class='varid'>take</span> <span class='num'>1</span>
<a name="line-121"></a> <span class='varop'>.</span> <span class='varid'>filter</span> <span class='layout'>(</span><span class='layout'>(</span><span class='varop'>==</span> <span class='str'>"content-type"</span><span class='layout'>)</span> <span class='varop'>.</span> <span class='varid'>fst</span><span class='layout'>)</span>
<a name="line-122"></a> <span class='varop'>.</span> <span class='varid'>map</span> <span class='layout'>(</span><span class='varid'>first</span> <span class='layout'>(</span><span class='varid'>map</span> <span class='varid'>toLower</span><span class='layout'>)</span><span class='layout'>)</span>
<a name="line-123"></a> <span class='varop'>$</span> <span class='varid'>rsh</span>
<a name="line-124"></a>
<a name="line-125"></a> <span class='varid'>statusLine</span> <span class='layout'>(</span><span class='varid'>vers</span> <span class='conop'>:</span> <span class='varid'>code</span> <span class='conop'>:</span> <span class='varid'>msg</span><span class='layout'>)</span>
<a name="line-126"></a> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span> <span class='layout'>(</span><span class='varid'>transferVersion</span><span class='layout'>,</span> <span class='varid'>vers</span><span class='layout'>)</span>
<a name="line-127"></a> <span class='layout'>,</span> <span class='layout'>(</span><span class='varid'>transferMessage</span><span class='layout'>,</span> <span class='varid'>unwords</span> <span class='varid'>msg</span><span class='layout'>)</span>
<a name="line-128"></a> <span class='layout'>,</span> <span class='layout'>(</span><span class='varid'>transferStatus</span><span class='layout'>,</span> <span class='varid'>code</span><span class='layout'>)</span>
<a name="line-129"></a> <span class='keyglyph'>]</span>
<a name="line-130"></a> <span class='varid'>statusLine</span> <span class='keyword'>_</span>
<a name="line-131"></a> <span class='keyglyph'>=</span> <span class='conid'>[]</span>
<a name="line-132"></a>
<a name="line-133"></a> <span class='varid'>rc</span> <span class='keyglyph'>=</span> <span class='varid'>respCurlCode</span> <span class='varid'>r</span>
<a name="line-134"></a> <span class='varid'>rs</span> <span class='keyglyph'>=</span> <span class='varid'>respStatus</span> <span class='varid'>r</span>
<a name="line-135"></a> <span class='varid'>rsl</span> <span class='keyglyph'>=</span> <span class='varid'>respStatusLine</span> <span class='varid'>r</span>
<a name="line-136"></a> <span class='varid'>rsh</span> <span class='keyglyph'>=</span> <span class='varid'>respHeaders</span> <span class='varid'>r</span>
<a name="line-137"></a>
<a name="line-138"></a><span class='comment'>-- ------------------------------------------------------------</span>
<a name="line-139"></a>
<a name="line-140"></a><a name="copt"></a><span class='definition'>copt</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='keyglyph'>[</span><span class='conid'>CurlOption</span><span class='keyglyph'>]</span>
<a name="line-141"></a><span class='definition'>copt</span> <span class='varid'>k</span> <span class='varid'>v</span>
<a name="line-142"></a> <span class='keyglyph'>|</span> <span class='str'>"curl"</span> <span class='varop'>`isPrefixOf`</span> <span class='varid'>k</span>
<a name="line-143"></a> <span class='keyglyph'>=</span> <span class='varid'>opt2copt</span> <span class='layout'>(</span><span class='varid'>drop</span> <span class='num'>4</span> <span class='varid'>k</span><span class='layout'>)</span> <span class='varid'>v</span>
<a name="line-144"></a>
<a name="line-145"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>==</span> <span class='varid'>a_proxy</span>
<a name="line-146"></a> <span class='keyglyph'>=</span> <span class='varid'>opt2copt</span> <span class='varid'>k</span> <span class='varid'>v</span>
<a name="line-147"></a>
<a name="line-148"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>==</span> <span class='varid'>a_options_curl</span>
<a name="line-149"></a> <span class='keyglyph'>=</span> <span class='varid'>curlOptionString</span> <span class='varid'>v</span>
<a name="line-150"></a>
<a name="line-151"></a> <span class='keyglyph'>|</span> <span class='varid'>otherwise</span>
<a name="line-152"></a> <span class='keyglyph'>=</span> <span class='conid'>[]</span>
<a name="line-153"></a>
<a name="line-154"></a><a name="opt2copt"></a><span class='definition'>opt2copt</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='keyglyph'>[</span><span class='conid'>CurlOption</span><span class='keyglyph'>]</span>
<a name="line-155"></a><span class='definition'>opt2copt</span> <span class='varid'>k</span> <span class='varid'>v</span>
<a name="line-156"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>`elem`</span> <span class='keyglyph'>[</span><span class='str'>"-A"</span><span class='layout'>,</span> <span class='str'>"--user-agent"</span><span class='keyglyph'>]</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>CurlUserAgent</span> <span class='varid'>v</span><span class='keyglyph'>]</span>
<a name="line-157"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>`elem`</span> <span class='keyglyph'>[</span><span class='str'>"-b"</span><span class='layout'>,</span> <span class='str'>"--cookie"</span><span class='keyglyph'>]</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>CurlCookie</span> <span class='varid'>v</span><span class='keyglyph'>]</span>
<a name="line-158"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>==</span> <span class='str'>"--connect-timeout"</span>
<a name="line-159"></a> <span class='varop'>&&</span>
<a name="line-160"></a> <span class='varid'>isIntArg</span> <span class='varid'>v</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>CurlConnectTimeout</span> <span class='varop'>$</span> <span class='varid'>read</span> <span class='varid'>v</span><span class='keyglyph'>]</span>
<a name="line-161"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>==</span> <span class='str'>"--crlf"</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>CurlCRLF</span> <span class='varop'>$</span> <span class='varid'>isTrue</span> <span class='varid'>v</span><span class='keyglyph'>]</span>
<a name="line-162"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>`elem`</span> <span class='keyglyph'>[</span><span class='str'>"-d"</span><span class='layout'>,</span> <span class='str'>"--data"</span><span class='keyglyph'>]</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>CurlPostFields</span> <span class='varop'>$</span> <span class='varid'>lines</span> <span class='varid'>v</span><span class='keyglyph'>]</span>
<a name="line-163"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>`elem`</span> <span class='keyglyph'>[</span><span class='str'>"-e"</span><span class='layout'>,</span> <span class='str'>"--referer"</span><span class='keyglyph'>]</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>CurlReferer</span> <span class='varid'>v</span><span class='keyglyph'>]</span>
<a name="line-164"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>`elem`</span> <span class='keyglyph'>[</span><span class='str'>"-H"</span><span class='layout'>,</span> <span class='str'>"--header"</span><span class='keyglyph'>]</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>CurlHttpHeaders</span> <span class='varop'>$</span> <span class='varid'>lines</span> <span class='varid'>v</span><span class='keyglyph'>]</span>
<a name="line-165"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>==</span> <span class='str'>"--ignore-content-length"</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>CurlIgnoreContentLength</span> <span class='varop'>$</span> <span class='varid'>isTrue</span> <span class='varid'>v</span><span class='keyglyph'>]</span>
<a name="line-166"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>`elem`</span> <span class='keyglyph'>[</span><span class='str'>"-I"</span><span class='layout'>,</span> <span class='str'>"--head"</span><span class='keyglyph'>]</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>CurlNoBody</span> <span class='varop'>$</span> <span class='varid'>isTrue</span> <span class='varid'>v</span><span class='keyglyph'>]</span>
<a name="line-167"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>`elem`</span> <span class='keyglyph'>[</span><span class='str'>"-L"</span><span class='layout'>,</span> <span class='str'>"--location"</span><span class='keyglyph'>]</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>CurlFollowLocation</span> <span class='varop'>$</span> <span class='varid'>isTrue</span> <span class='varid'>v</span><span class='keyglyph'>]</span>
<a name="line-168"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>==</span> <span class='str'>"--max-filesize"</span>
<a name="line-169"></a> <span class='varop'>&&</span>
<a name="line-170"></a> <span class='varid'>isIntArg</span> <span class='varid'>v</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>CurlMaxFileSizeLarge</span> <span class='varop'>$</span> <span class='varid'>read</span> <span class='varid'>v</span><span class='keyglyph'>]</span>
<a name="line-171"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>`elem`</span> <span class='keyglyph'>[</span><span class='str'>"-m"</span><span class='layout'>,</span> <span class='str'>"--max-time"</span><span class='keyglyph'>]</span>
<a name="line-172"></a> <span class='varop'>&&</span>
<a name="line-173"></a> <span class='varid'>isIntArg</span> <span class='varid'>v</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>CurlTimeoutMS</span> <span class='varop'>$</span> <span class='varid'>read</span> <span class='varid'>v</span><span class='keyglyph'>]</span>
<a name="line-174"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>`elem`</span> <span class='keyglyph'>[</span><span class='str'>"-n"</span><span class='layout'>,</span> <span class='str'>"--netrc"</span><span class='keyglyph'>]</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>CurlNetrcFile</span> <span class='varid'>v</span><span class='keyglyph'>]</span>
<a name="line-175"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>`elem`</span> <span class='keyglyph'>[</span><span class='str'>"-R"</span><span class='layout'>,</span> <span class='str'>"--remote-time"</span><span class='keyglyph'>]</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>CurlFiletime</span> <span class='varop'>$</span> <span class='varid'>isTrue</span> <span class='varid'>v</span><span class='keyglyph'>]</span>
<a name="line-176"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>`elem`</span> <span class='keyglyph'>[</span><span class='str'>"-u"</span><span class='layout'>,</span> <span class='str'>"--user"</span><span class='keyglyph'>]</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>CurlUserPwd</span> <span class='varid'>v</span><span class='keyglyph'>]</span>
<a name="line-177"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>`elem`</span> <span class='keyglyph'>[</span><span class='str'>"-U"</span><span class='layout'>,</span> <span class='str'>"--proxy-user"</span><span class='keyglyph'>]</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>CurlProxyUserPwd</span> <span class='varid'>v</span><span class='keyglyph'>]</span>
<a name="line-178"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>`elem`</span> <span class='keyglyph'>[</span><span class='str'>"-x"</span><span class='layout'>,</span> <span class='str'>"--proxy"</span><span class='keyglyph'>]</span> <span class='keyglyph'>=</span> <span class='varid'>proxyOptions</span>
<a name="line-179"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>`elem`</span> <span class='keyglyph'>[</span><span class='str'>"-X"</span><span class='layout'>,</span> <span class='str'>"--request"</span><span class='keyglyph'>]</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>CurlCustomRequest</span> <span class='varid'>v</span><span class='keyglyph'>]</span>
<a name="line-180"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>`elem`</span> <span class='keyglyph'>[</span><span class='str'>"-y"</span><span class='layout'>,</span> <span class='str'>"--speed-time"</span><span class='keyglyph'>]</span>
<a name="line-181"></a> <span class='varop'>&&</span>
<a name="line-182"></a> <span class='varid'>isIntArg</span> <span class='varid'>v</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>CurlLowSpeedTime</span> <span class='varop'>$</span> <span class='varid'>read</span> <span class='varid'>v</span><span class='keyglyph'>]</span>
<a name="line-183"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>`elem`</span> <span class='keyglyph'>[</span><span class='str'>"-Y"</span><span class='layout'>,</span> <span class='str'>"--speed-limit"</span><span class='keyglyph'>]</span>
<a name="line-184"></a> <span class='varop'>&&</span>
<a name="line-185"></a> <span class='varid'>isIntArg</span> <span class='varid'>v</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>CurlLowSpeed</span> <span class='varop'>$</span> <span class='varid'>read</span> <span class='varid'>v</span><span class='keyglyph'>]</span>
<a name="line-186"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>`elem`</span> <span class='keyglyph'>[</span><span class='str'>"-z"</span><span class='layout'>,</span> <span class='str'>"--time-cond"</span><span class='keyglyph'>]</span> <span class='keyglyph'>=</span> <span class='varid'>ifModifiedOptions</span>
<a name="line-187"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>==</span> <span class='str'>"--max-redirs"</span>
<a name="line-188"></a> <span class='varop'>&&</span>
<a name="line-189"></a> <span class='varid'>isIntArg</span> <span class='varid'>v</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>CurlMaxRedirs</span> <span class='varop'>$</span> <span class='varid'>read</span> <span class='varid'>v</span><span class='keyglyph'>]</span>
<a name="line-190"></a> <span class='keyglyph'>|</span> <span class='varid'>k</span> <span class='varop'>`elem`</span> <span class='keyglyph'>[</span><span class='str'>"-0"</span><span class='layout'>,</span> <span class='str'>"--http1.0"</span><span class='keyglyph'>]</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>CurlHttpVersion</span> <span class='conid'>HttpVersion10</span><span class='keyglyph'>]</span>
<a name="line-191"></a> <span class='keyglyph'>|</span> <span class='varid'>otherwise</span> <span class='keyglyph'>=</span> <span class='conid'>[]</span>
<a name="line-192"></a> <span class='keyword'>where</span>
<a name="line-193"></a> <span class='varid'>ifModifiedOptions</span>
<a name="line-194"></a> <span class='keyglyph'>|</span> <span class='str'>"-"</span> <span class='varop'>`isPrefixOf`</span> <span class='varid'>v</span>
<a name="line-195"></a> <span class='varop'>&&</span>
<a name="line-196"></a> <span class='varid'>isIntArg</span> <span class='varid'>v'</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>CurlTimeCondition</span> <span class='conid'>TimeCondIfUnmodSince</span>
<a name="line-197"></a> <span class='layout'>,</span><span class='conid'>CurlTimeValue</span> <span class='varop'>$</span> <span class='varid'>read</span> <span class='varid'>v'</span>
<a name="line-198"></a> <span class='keyglyph'>]</span>
<a name="line-199"></a> <span class='keyglyph'>|</span> <span class='varid'>isIntArg</span> <span class='varid'>v</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>CurlTimeCondition</span> <span class='conid'>TimeCondIfModSince</span>
<a name="line-200"></a> <span class='layout'>,</span><span class='conid'>CurlTimeValue</span> <span class='varop'>$</span> <span class='varid'>read</span> <span class='varid'>v'</span>
<a name="line-201"></a> <span class='keyglyph'>]</span>
<a name="line-202"></a> <span class='keyglyph'>|</span> <span class='varid'>otherwise</span> <span class='keyglyph'>=</span> <span class='conid'>[]</span>
<a name="line-203"></a> <span class='keyword'>where</span>
<a name="line-204"></a> <span class='varid'>v'</span> <span class='keyglyph'>=</span> <span class='varid'>tail</span> <span class='varid'>v</span>
<a name="line-205"></a>
<a name="line-206"></a> <span class='varid'>proxyOptions</span>
<a name="line-207"></a> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span> <span class='conid'>CurlProxyPort</span> <span class='varid'>pport</span>
<a name="line-208"></a> <span class='layout'>,</span> <span class='conid'>CurlProxy</span> <span class='varid'>phost</span>
<a name="line-209"></a> <span class='keyglyph'>]</span>
<a name="line-210"></a> <span class='keyword'>where</span>
<a name="line-211"></a> <span class='varid'>pport</span>
<a name="line-212"></a> <span class='keyglyph'>|</span> <span class='varid'>isIntArg</span> <span class='varid'>ppp</span> <span class='keyglyph'>=</span> <span class='varid'>read</span> <span class='varid'>v</span>
<a name="line-213"></a> <span class='keyglyph'>|</span> <span class='varid'>otherwise</span> <span class='keyglyph'>=</span> <span class='num'>1080</span>
<a name="line-214"></a> <span class='layout'>(</span><span class='varid'>phost</span><span class='layout'>,</span> <span class='varid'>pp</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='varid'>span</span> <span class='layout'>(</span><span class='varop'>/=</span><span class='chr'>':'</span><span class='layout'>)</span> <span class='varid'>v</span>
<a name="line-215"></a> <span class='varid'>ppp</span> <span class='keyglyph'>=</span> <span class='varid'>drop</span> <span class='num'>1</span> <span class='varid'>pp</span>
<a name="line-216"></a>
<a name="line-217"></a>
<a name="line-218"></a>
<a name="line-219"></a><a name="isTrue"></a><span class='definition'>isTrue</span> <span class='keyglyph'>::</span> <span class='conid'>String</span> <span class='keyglyph'>-></span> <span class='conid'>Bool</span>
<a name="line-220"></a><span class='definition'>isTrue</span> <span class='varid'>s</span> <span class='keyglyph'>=</span> <span class='varid'>null</span> <span class='varid'>s</span> <span class='varop'>||</span> <span class='varid'>isTrueValue</span> <span class='varid'>s</span>
<a name="line-221"></a>
<a name="line-222"></a><a name="isIntArg"></a><span class='definition'>isIntArg</span> <span class='keyglyph'>::</span> <span class='conid'>String</span> <span class='keyglyph'>-></span> <span class='conid'>Bool</span>
<a name="line-223"></a><span class='definition'>isIntArg</span> <span class='varid'>s</span> <span class='keyglyph'>=</span> <span class='varid'>not</span> <span class='layout'>(</span><span class='varid'>null</span> <span class='varid'>s</span><span class='layout'>)</span> <span class='varop'>&&</span> <span class='varid'>all</span> <span class='varid'>isDigit</span> <span class='varid'>s</span>
<a name="line-224"></a>
<a name="line-225"></a><a name="curlOptionString"></a><span class='definition'>curlOptionString</span> <span class='keyglyph'>::</span> <span class='conid'>String</span> <span class='keyglyph'>-></span> <span class='keyglyph'>[</span><span class='conid'>CurlOption</span><span class='keyglyph'>]</span>
<a name="line-226"></a><span class='definition'>curlOptionString</span>
<a name="line-227"></a> <span class='keyglyph'>=</span> <span class='varid'>concatMap</span> <span class='layout'>(</span><span class='varid'>uncurry</span> <span class='varid'>copt</span><span class='layout'>)</span> <span class='varop'>.</span> <span class='varid'>opts</span> <span class='varop'>.</span> <span class='varid'>words</span>
<a name="line-228"></a> <span class='keyword'>where</span>
<a name="line-229"></a> <span class='varid'>opts</span> <span class='varid'>l</span>
<a name="line-230"></a> <span class='keyglyph'>|</span> <span class='varid'>null</span> <span class='varid'>l</span> <span class='keyglyph'>=</span> <span class='conid'>[]</span>
<a name="line-231"></a> <span class='keyglyph'>|</span> <span class='varid'>not</span> <span class='layout'>(</span><span class='str'>"-"</span> <span class='varop'>`isPrefixOf`</span> <span class='varid'>k</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='varid'>opts</span> <span class='varid'>l1</span> <span class='comment'>-- k not an option: ignore</span>
<a name="line-232"></a> <span class='keyglyph'>|</span> <span class='varid'>null</span> <span class='varid'>l1</span> <span class='keyglyph'>=</span> <span class='varid'>opts</span> <span class='layout'>(</span><span class='varid'>k</span><span class='conop'>:</span><span class='str'>""</span><span class='conop'>:</span><span class='varid'>l1</span><span class='layout'>)</span> <span class='comment'>-- last option</span>
<a name="line-233"></a> <span class='keyglyph'>|</span> <span class='str'>"-"</span> <span class='varop'>`isPrefixOf`</span> <span class='varid'>v</span> <span class='keyglyph'>=</span> <span class='layout'>(</span><span class='varid'>k</span><span class='layout'>,</span> <span class='str'>""</span><span class='layout'>)</span> <span class='conop'>:</span> <span class='varid'>opts</span> <span class='layout'>(</span><span class='varid'>v</span><span class='conop'>:</span><span class='varid'>l</span><span class='layout'>)</span> <span class='comment'>-- k option without arg</span>
<a name="line-234"></a> <span class='keyglyph'>|</span> <span class='varid'>otherwise</span> <span class='keyglyph'>=</span> <span class='layout'>(</span><span class='varid'>k</span><span class='layout'>,</span> <span class='varid'>v</span><span class='layout'>)</span> <span class='conop'>:</span> <span class='varid'>opts</span> <span class='varid'>l2</span> <span class='comment'>-- k with value</span>
<a name="line-235"></a> <span class='keyword'>where</span>
<a name="line-236"></a> <span class='layout'>(</span><span class='varid'>k</span><span class='conop'>:</span><span class='varid'>l1</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='varid'>l</span>
<a name="line-237"></a> <span class='layout'>(</span><span class='varid'>v</span><span class='conop'>:</span><span class='varid'>l2</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='varid'>l1</span>
<a name="line-238"></a>
<a name="line-239"></a><span class='comment'>-- ------------------------------------------------------------</span>
</pre></body>
</html>