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<pre><a name="line-1"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-2"></a><span class='hs-comment'>-- |</span>
<a name="line-3"></a><span class='hs-comment'>-- Module : Network.HTTP.Auth</span>
<a name="line-4"></a><span class='hs-comment'>-- Copyright : (c) Warrick Gray 2002, Bjorn Bringert 2003-2005, 2007 Robin Bate Boerop, 2008- Sigbjorn Finne</span>
<a name="line-5"></a><span class='hs-comment'>-- License : BSD</span>
<a name="line-6"></a><span class='hs-comment'>-- </span>
<a name="line-7"></a><span class='hs-comment'>-- Maintainer : Sigbjorn Finne <sigbjorn.finne@gmail.com></span>
<a name="line-8"></a><span class='hs-comment'>-- Stability : experimental</span>
<a name="line-9"></a><span class='hs-comment'>-- Portability : non-portable (not tested)</span>
<a name="line-10"></a><span class='hs-comment'>--</span>
<a name="line-11"></a><span class='hs-comment'>-- Representing HTTP Auth values in Haskell.</span>
<a name="line-12"></a><span class='hs-comment'>-- Right now, it contains mostly functionality needed by 'Network.Browser'.</span>
<a name="line-13"></a><span class='hs-comment'>-- </span>
<a name="line-14"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-15"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Network</span><span class='hs-varop'>.</span><span class='hs-conid'>HTTP</span><span class='hs-varop'>.</span><span class='hs-conid'>Auth</span>
<a name="line-16"></a> <span class='hs-layout'>(</span> <span class='hs-conid'>Authority</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-17"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Algorithm</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-18"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Challenge</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-19"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Qop</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-20"></a>
<a name="line-21"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>headerToChallenge</span> <span class='hs-comment'>-- :: URI -> Header -> Maybe Challenge</span>
<a name="line-22"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>withAuthority</span> <span class='hs-comment'>-- :: Authority -> Request ty -> String</span>
<a name="line-23"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-24"></a>
<a name="line-25"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Network</span><span class='hs-varop'>.</span><span class='hs-conid'>URI</span>
<a name="line-26"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Network</span><span class='hs-varop'>.</span><span class='hs-conid'>HTTP</span><span class='hs-varop'>.</span><span class='hs-conid'>Base</span>
<a name="line-27"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Network</span><span class='hs-varop'>.</span><span class='hs-conid'>HTTP</span><span class='hs-varop'>.</span><span class='hs-conid'>Utils</span>
<a name="line-28"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Network</span><span class='hs-varop'>.</span><span class='hs-conid'>HTTP</span><span class='hs-varop'>.</span><span class='hs-conid'>Headers</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Header</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-29"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Network</span><span class='hs-varop'>.</span><span class='hs-conid'>HTTP</span><span class='hs-varop'>.</span><span class='hs-conid'>MD5</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>MD5</span> <span class='hs-layout'>(</span><span class='hs-varid'>hash</span><span class='hs-layout'>)</span>
<a name="line-30"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Network</span><span class='hs-varop'>.</span><span class='hs-conid'>HTTP</span><span class='hs-varop'>.</span><span class='hs-conid'>Base64</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Base64</span> <span class='hs-layout'>(</span><span class='hs-varid'>encode</span><span class='hs-layout'>)</span>
<a name="line-31"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>ParserCombinators</span><span class='hs-varop'>.</span><span class='hs-conid'>Parsec</span>
<a name="line-32"></a> <span class='hs-layout'>(</span> <span class='hs-conid'>Parser</span><span class='hs-layout'>,</span> <span class='hs-varid'>char</span><span class='hs-layout'>,</span> <span class='hs-varid'>many</span><span class='hs-layout'>,</span> <span class='hs-varid'>many1</span><span class='hs-layout'>,</span> <span class='hs-varid'>satisfy</span><span class='hs-layout'>,</span> <span class='hs-varid'>parse</span><span class='hs-layout'>,</span> <span class='hs-varid'>spaces</span><span class='hs-layout'>,</span> <span class='hs-varid'>sepBy1</span> <span class='hs-layout'>)</span>
<a name="line-33"></a>
<a name="line-34"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Char</span>
<a name="line-35"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Maybe</span>
<a name="line-36"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Word</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Word8</span> <span class='hs-layout'>)</span>
<a name="line-37"></a>
<a name="line-38"></a><a name="Authority"></a><span class='hs-comment'>-- | @Authority@ specifies the HTTP Authentication method to use for</span>
<a name="line-39"></a><a name="Authority"></a><span class='hs-comment'>-- a given domain/realm; @Basic@ or @Digest@.</span>
<a name="line-40"></a><a name="Authority"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Authority</span>
<a name="line-41"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>AuthBasic</span> <span class='hs-layout'>{</span> <span class='hs-varid'>auRealm</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-42"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>auUsername</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-43"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>auPassword</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-44"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>auSite</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>URI</span>
<a name="line-45"></a> <span class='hs-layout'>}</span>
<a name="line-46"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>AuthDigest</span><span class='hs-layout'>{</span> <span class='hs-varid'>auRealm</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-47"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>auUsername</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-48"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>auPassword</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-49"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>auNonce</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-50"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>auAlgorithm</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>Algorithm</span>
<a name="line-51"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>auDomain</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>URI</span><span class='hs-keyglyph'>]</span>
<a name="line-52"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>auOpaque</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>String</span>
<a name="line-53"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>auQop</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Qop</span><span class='hs-keyglyph'>]</span>
<a name="line-54"></a> <span class='hs-layout'>}</span>
<a name="line-55"></a>
<a name="line-56"></a>
<a name="line-57"></a><a name="Challenge"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Challenge</span>
<a name="line-58"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ChalBasic</span> <span class='hs-layout'>{</span> <span class='hs-varid'>chRealm</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-layout'>}</span>
<a name="line-59"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ChalDigest</span> <span class='hs-layout'>{</span> <span class='hs-varid'>chRealm</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-60"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>chDomain</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>URI</span><span class='hs-keyglyph'>]</span>
<a name="line-61"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>chNonce</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-62"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>chOpaque</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>String</span>
<a name="line-63"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>chStale</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bool</span>
<a name="line-64"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>chAlgorithm</span> <span class='hs-keyglyph'>::</span><span class='hs-conid'>Maybe</span> <span class='hs-conid'>Algorithm</span>
<a name="line-65"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>chQop</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Qop</span><span class='hs-keyglyph'>]</span>
<a name="line-66"></a> <span class='hs-layout'>}</span>
<a name="line-67"></a>
<a name="line-68"></a><a name="Algorithm"></a><span class='hs-comment'>-- | @Algorithm@ controls the digest algorithm to, @MD5@ or @MD5Session@.</span>
<a name="line-69"></a><a name="Algorithm"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Algorithm</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>AlgMD5</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>AlgMD5sess</span>
<a name="line-70"></a> <span class='hs-keyword'>deriving</span><span class='hs-layout'>(</span><span class='hs-conid'>Eq</span><span class='hs-layout'>)</span>
<a name="line-71"></a>
<a name="line-72"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Show</span> <span class='hs-conid'>Algorithm</span> <span class='hs-keyword'>where</span>
<a name="line-73"></a> <span class='hs-varid'>show</span> <span class='hs-conid'>AlgMD5</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"md5"</span>
<a name="line-74"></a> <span class='hs-varid'>show</span> <span class='hs-conid'>AlgMD5sess</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"md5-sess"</span>
<a name="line-75"></a>
<a name="line-76"></a><a name="Qop"></a><span class='hs-comment'>-- | </span>
<a name="line-77"></a><a name="Qop"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Qop</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>QopAuth</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>QopAuthInt</span>
<a name="line-78"></a> <span class='hs-keyword'>deriving</span><span class='hs-layout'>(</span><span class='hs-conid'>Eq</span><span class='hs-layout'>,</span><span class='hs-conid'>Show</span><span class='hs-layout'>)</span>
<a name="line-79"></a>
<a name="line-80"></a><a name="withAuthority"></a><span class='hs-comment'>-- | @withAuthority auth req@ generates a credentials value from the @auth@ 'Authority',</span>
<a name="line-81"></a><span class='hs-comment'>-- in the context of the given request.</span>
<a name="line-82"></a><span class='hs-comment'>-- </span>
<a name="line-83"></a><span class='hs-comment'>-- If a client nonce was to be used then this function might need to be of type ... -> BrowserAction String</span>
<a name="line-84"></a><span class='hs-definition'>withAuthority</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Authority</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Request</span> <span class='hs-varid'>ty</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-85"></a><span class='hs-definition'>withAuthority</span> <span class='hs-varid'>a</span> <span class='hs-varid'>rq</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>a</span> <span class='hs-keyword'>of</span>
<a name="line-86"></a> <span class='hs-conid'>AuthBasic</span><span class='hs-layout'>{</span><span class='hs-layout'>}</span> <span class='hs-keyglyph'>-></span> <span class='hs-str'>"Basic "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>base64encode</span> <span class='hs-layout'>(</span><span class='hs-varid'>auUsername</span> <span class='hs-varid'>a</span> <span class='hs-varop'>++</span> <span class='hs-chr'>':'</span> <span class='hs-conop'>:</span> <span class='hs-varid'>auPassword</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span>
<a name="line-87"></a> <span class='hs-conid'>AuthDigest</span><span class='hs-layout'>{</span><span class='hs-layout'>}</span> <span class='hs-keyglyph'>-></span>
<a name="line-88"></a> <span class='hs-str'>"Digest "</span> <span class='hs-varop'>++</span>
<a name="line-89"></a> <span class='hs-varid'>concat</span> <span class='hs-keyglyph'>[</span> <span class='hs-str'>"username="</span> <span class='hs-varop'>++</span> <span class='hs-varid'>quo</span> <span class='hs-layout'>(</span><span class='hs-varid'>auUsername</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span>
<a name="line-90"></a> <span class='hs-layout'>,</span> <span class='hs-str'>",realm="</span> <span class='hs-varop'>++</span> <span class='hs-varid'>quo</span> <span class='hs-layout'>(</span><span class='hs-varid'>auRealm</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span>
<a name="line-91"></a> <span class='hs-layout'>,</span> <span class='hs-str'>",nonce="</span> <span class='hs-varop'>++</span> <span class='hs-varid'>quo</span> <span class='hs-layout'>(</span><span class='hs-varid'>auNonce</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span>
<a name="line-92"></a> <span class='hs-layout'>,</span> <span class='hs-str'>",uri="</span> <span class='hs-varop'>++</span> <span class='hs-varid'>quo</span> <span class='hs-varid'>digesturi</span>
<a name="line-93"></a> <span class='hs-layout'>,</span> <span class='hs-str'>",response="</span> <span class='hs-varop'>++</span> <span class='hs-varid'>quo</span> <span class='hs-varid'>rspdigest</span>
<a name="line-94"></a> <span class='hs-comment'>-- plus optional stuff:</span>
<a name="line-95"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>fromMaybe</span> <span class='hs-str'>""</span> <span class='hs-layout'>(</span><span class='hs-varid'>fmap</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span> <span class='hs-varid'>alg</span> <span class='hs-keyglyph'>-></span> <span class='hs-str'>",algorithm="</span> <span class='hs-varop'>++</span> <span class='hs-varid'>quo</span> <span class='hs-layout'>(</span><span class='hs-varid'>show</span> <span class='hs-varid'>alg</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>auAlgorithm</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-96"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>fromMaybe</span> <span class='hs-str'>""</span> <span class='hs-layout'>(</span><span class='hs-varid'>fmap</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span> <span class='hs-varid'>o</span> <span class='hs-keyglyph'>-></span> <span class='hs-str'>",opaque="</span> <span class='hs-varop'>++</span> <span class='hs-varid'>quo</span> <span class='hs-varid'>o</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>auOpaque</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-97"></a> <span class='hs-layout'>,</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>null</span> <span class='hs-layout'>(</span><span class='hs-varid'>auQop</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyword'>then</span> <span class='hs-str'>""</span> <span class='hs-keyword'>else</span> <span class='hs-str'>",qop=auth"</span>
<a name="line-98"></a> <span class='hs-keyglyph'>]</span>
<a name="line-99"></a> <span class='hs-keyword'>where</span>
<a name="line-100"></a> <span class='hs-varid'>quo</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-chr'>'"'</span><span class='hs-conop'>:</span><span class='hs-varid'>s</span> <span class='hs-varop'>++</span> <span class='hs-str'>"\""</span>
<a name="line-101"></a>
<a name="line-102"></a> <span class='hs-varid'>rspdigest</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>toLower</span> <span class='hs-layout'>(</span><span class='hs-varid'>kd</span> <span class='hs-layout'>(</span><span class='hs-varid'>md5</span> <span class='hs-varid'>a1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>noncevalue</span> <span class='hs-varop'>++</span> <span class='hs-str'>":"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>md5</span> <span class='hs-varid'>a2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-103"></a>
<a name="line-104"></a> <span class='hs-varid'>a1</span><span class='hs-layout'>,</span> <span class='hs-varid'>a2</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-105"></a> <span class='hs-varid'>a1</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>auUsername</span> <span class='hs-varid'>a</span> <span class='hs-varop'>++</span> <span class='hs-str'>":"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>auRealm</span> <span class='hs-varid'>a</span> <span class='hs-varop'>++</span> <span class='hs-str'>":"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>auPassword</span> <span class='hs-varid'>a</span>
<a name="line-106"></a>
<a name="line-107"></a> <span class='hs-comment'>{-
<a name="line-108"></a> If the "qop" directive's value is "auth" or is unspecified, then A2
<a name="line-109"></a> is:
<a name="line-110"></a> A2 = Method ":" digest-uri-value
<a name="line-111"></a> If the "qop" value is "auth-int", then A2 is:
<a name="line-112"></a> A2 = Method ":" digest-uri-value ":" H(entity-body)
<a name="line-113"></a> -}</span>
<a name="line-114"></a> <span class='hs-varid'>a2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-varid'>rqMethod</span> <span class='hs-varid'>rq</span><span class='hs-layout'>)</span> <span class='hs-varop'>++</span> <span class='hs-str'>":"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>digesturi</span>
<a name="line-115"></a>
<a name="line-116"></a> <span class='hs-varid'>digesturi</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-varid'>rqURI</span> <span class='hs-varid'>rq</span><span class='hs-layout'>)</span>
<a name="line-117"></a> <span class='hs-varid'>noncevalue</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>auNonce</span> <span class='hs-varid'>a</span>
<a name="line-118"></a>
<a name="line-119"></a><a name="Octet"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>Octet</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Word8</span>
<a name="line-120"></a>
<a name="line-121"></a><a name="stringToOctets"></a><span class='hs-comment'>-- FIXME: these probably only work right for latin-1 strings</span>
<a name="line-122"></a><span class='hs-definition'>stringToOctets</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Octet</span><span class='hs-keyglyph'>]</span>
<a name="line-123"></a><span class='hs-definition'>stringToOctets</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fromEnum</span><span class='hs-layout'>)</span>
<a name="line-124"></a>
<a name="line-125"></a><a name="octetsToString"></a><span class='hs-definition'>octetsToString</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Octet</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-126"></a><span class='hs-definition'>octetsToString</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>toEnum</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fromIntegral</span><span class='hs-layout'>)</span>
<a name="line-127"></a>
<a name="line-128"></a><a name="base64encode"></a><span class='hs-definition'>base64encode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-129"></a><span class='hs-definition'>base64encode</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Base64</span><span class='hs-varop'>.</span><span class='hs-varid'>encode</span> <span class='hs-varop'>.</span> <span class='hs-varid'>stringToOctets</span>
<a name="line-130"></a>
<a name="line-131"></a><a name="md5"></a><span class='hs-definition'>md5</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-132"></a><span class='hs-definition'>md5</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>octetsToString</span> <span class='hs-varop'>.</span> <span class='hs-conid'>MD5</span><span class='hs-varop'>.</span><span class='hs-varid'>hash</span> <span class='hs-varop'>.</span> <span class='hs-varid'>stringToOctets</span>
<a name="line-133"></a>
<a name="line-134"></a><a name="kd"></a><span class='hs-definition'>kd</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-135"></a><span class='hs-definition'>kd</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>md5</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-varop'>++</span> <span class='hs-str'>":"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span>
<a name="line-136"></a>
<a name="line-137"></a>
<a name="line-138"></a>
<a name="line-139"></a>
<a name="line-140"></a><a name="headerToChallenge"></a><span class='hs-comment'>-- | @headerToChallenge base www_auth@ tries to convert the @WWW-Authenticate@ header </span>
<a name="line-141"></a><span class='hs-comment'>-- @www_auth@ into a 'Challenge' value.</span>
<a name="line-142"></a><span class='hs-definition'>headerToChallenge</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>URI</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Header</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>Challenge</span>
<a name="line-143"></a><span class='hs-definition'>headerToChallenge</span> <span class='hs-varid'>baseURI</span> <span class='hs-layout'>(</span><span class='hs-conid'>Header</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>str</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-144"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>parse</span> <span class='hs-varid'>challenge</span> <span class='hs-str'>""</span> <span class='hs-varid'>str</span> <span class='hs-keyword'>of</span>
<a name="line-145"></a> <span class='hs-conid'>Left</span><span class='hs-layout'>{</span><span class='hs-layout'>}</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Nothing</span>
<a name="line-146"></a> <span class='hs-conid'>Right</span> <span class='hs-layout'>(</span><span class='hs-varid'>name</span><span class='hs-layout'>,</span><span class='hs-varid'>props</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>case</span> <span class='hs-varid'>name</span> <span class='hs-keyword'>of</span>
<a name="line-147"></a> <span class='hs-str'>"basic"</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>mkBasic</span> <span class='hs-varid'>props</span>
<a name="line-148"></a> <span class='hs-str'>"digest"</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>mkDigest</span> <span class='hs-varid'>props</span>
<a name="line-149"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Nothing</span>
<a name="line-150"></a> <span class='hs-keyword'>where</span>
<a name="line-151"></a> <span class='hs-varid'>challenge</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Parser</span> <span class='hs-layout'>(</span><span class='hs-conid'>String</span><span class='hs-layout'>,</span><span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>String</span><span class='hs-layout'>,</span><span class='hs-conid'>String</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-152"></a> <span class='hs-varid'>challenge</span> <span class='hs-keyglyph'>=</span>
<a name="line-153"></a> <span class='hs-keyword'>do</span> <span class='hs-layout'>{</span> <span class='hs-varid'>nme</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>word</span>
<a name="line-154"></a> <span class='hs-layout'>;</span> <span class='hs-varid'>spaces</span>
<a name="line-155"></a> <span class='hs-layout'>;</span> <span class='hs-varid'>pps</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>cprops</span>
<a name="line-156"></a> <span class='hs-layout'>;</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>toLower</span> <span class='hs-varid'>nme</span><span class='hs-layout'>,</span><span class='hs-varid'>pps</span><span class='hs-layout'>)</span>
<a name="line-157"></a> <span class='hs-layout'>}</span>
<a name="line-158"></a>
<a name="line-159"></a> <span class='hs-varid'>cprops</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sepBy1</span> <span class='hs-varid'>cprop</span> <span class='hs-varid'>comma</span>
<a name="line-160"></a>
<a name="line-161"></a> <span class='hs-varid'>comma</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-layout'>{</span> <span class='hs-varid'>spaces</span> <span class='hs-layout'>;</span> <span class='hs-varid'>char</span> <span class='hs-chr'>','</span> <span class='hs-layout'>;</span> <span class='hs-varid'>spaces</span> <span class='hs-layout'>}</span>
<a name="line-162"></a>
<a name="line-163"></a> <span class='hs-varid'>cprop</span> <span class='hs-keyglyph'>=</span>
<a name="line-164"></a> <span class='hs-keyword'>do</span> <span class='hs-layout'>{</span> <span class='hs-varid'>nm</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>word</span>
<a name="line-165"></a> <span class='hs-layout'>;</span> <span class='hs-varid'>char</span> <span class='hs-chr'>'='</span>
<a name="line-166"></a> <span class='hs-layout'>;</span> <span class='hs-varid'>val</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>quotedstring</span>
<a name="line-167"></a> <span class='hs-layout'>;</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>toLower</span> <span class='hs-varid'>nm</span><span class='hs-layout'>,</span><span class='hs-varid'>val</span><span class='hs-layout'>)</span>
<a name="line-168"></a> <span class='hs-layout'>}</span>
<a name="line-169"></a>
<a name="line-170"></a> <span class='hs-varid'>mkBasic</span><span class='hs-layout'>,</span> <span class='hs-varid'>mkDigest</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>String</span><span class='hs-layout'>,</span><span class='hs-conid'>String</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>Challenge</span>
<a name="line-171"></a>
<a name="line-172"></a> <span class='hs-varid'>mkBasic</span> <span class='hs-varid'>params</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fmap</span> <span class='hs-conid'>ChalBasic</span> <span class='hs-layout'>(</span><span class='hs-varid'>lookup</span> <span class='hs-str'>"realm"</span> <span class='hs-varid'>params</span><span class='hs-layout'>)</span>
<a name="line-173"></a>
<a name="line-174"></a> <span class='hs-varid'>mkDigest</span> <span class='hs-varid'>params</span> <span class='hs-keyglyph'>=</span>
<a name="line-175"></a> <span class='hs-comment'>-- with Maybe monad</span>
<a name="line-176"></a> <span class='hs-keyword'>do</span> <span class='hs-layout'>{</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>lookup</span> <span class='hs-str'>"realm"</span> <span class='hs-varid'>params</span>
<a name="line-177"></a> <span class='hs-layout'>;</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>lookup</span> <span class='hs-str'>"nonce"</span> <span class='hs-varid'>params</span>
<a name="line-178"></a> <span class='hs-layout'>;</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span>
<a name="line-179"></a> <span class='hs-conid'>ChalDigest</span> <span class='hs-layout'>{</span> <span class='hs-varid'>chRealm</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>r</span>
<a name="line-180"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>chDomain</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>annotateURIs</span>
<a name="line-181"></a> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>parseURI</span>
<a name="line-182"></a> <span class='hs-varop'>$</span> <span class='hs-varid'>words</span>
<a name="line-183"></a> <span class='hs-varop'>$</span> <span class='hs-varid'>fromMaybe</span> <span class='hs-conid'>[]</span>
<a name="line-184"></a> <span class='hs-varop'>$</span> <span class='hs-varid'>lookup</span> <span class='hs-str'>"domain"</span> <span class='hs-varid'>params</span><span class='hs-layout'>)</span>
<a name="line-185"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>chNonce</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>n</span>
<a name="line-186"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>chOpaque</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>lookup</span> <span class='hs-str'>"opaque"</span> <span class='hs-varid'>params</span>
<a name="line-187"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>chStale</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"true"</span> <span class='hs-varop'>==</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>toLower</span>
<a name="line-188"></a> <span class='hs-varop'>$</span> <span class='hs-varid'>fromMaybe</span> <span class='hs-str'>""</span> <span class='hs-layout'>(</span><span class='hs-varid'>lookup</span> <span class='hs-str'>"stale"</span> <span class='hs-varid'>params</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-189"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>chAlgorithm</span><span class='hs-keyglyph'>=</span> <span class='hs-varid'>readAlgorithm</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromMaybe</span> <span class='hs-str'>"MD5"</span> <span class='hs-varop'>$</span> <span class='hs-varid'>lookup</span> <span class='hs-str'>"algorithm"</span> <span class='hs-varid'>params</span><span class='hs-layout'>)</span>
<a name="line-190"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>chQop</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>readQop</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromMaybe</span> <span class='hs-str'>""</span> <span class='hs-varop'>$</span> <span class='hs-varid'>lookup</span> <span class='hs-str'>"qop"</span> <span class='hs-varid'>params</span><span class='hs-layout'>)</span>
<a name="line-191"></a> <span class='hs-layout'>}</span>
<a name="line-192"></a> <span class='hs-layout'>}</span>
<a name="line-193"></a>
<a name="line-194"></a> <span class='hs-varid'>annotateURIs</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Maybe</span> <span class='hs-conid'>URI</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>URI</span><span class='hs-keyglyph'>]</span>
<a name="line-195"></a> <span class='hs-varid'>annotateURIs</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>u</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fromMaybe</span> <span class='hs-varid'>u</span> <span class='hs-layout'>(</span><span class='hs-varid'>u</span> <span class='hs-varop'>`relativeTo`</span> <span class='hs-varid'>baseURI</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>catMaybes</span>
<a name="line-196"></a>
<a name="line-197"></a> <span class='hs-comment'>-- Change These:</span>
<a name="line-198"></a> <span class='hs-varid'>readQop</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Qop</span><span class='hs-keyglyph'>]</span>
<a name="line-199"></a> <span class='hs-varid'>readQop</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>catMaybes</span> <span class='hs-varop'>.</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>strToQop</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-layout'>(</span><span class='hs-varid'>splitBy</span> <span class='hs-chr'>','</span><span class='hs-layout'>)</span>
<a name="line-200"></a>
<a name="line-201"></a> <span class='hs-varid'>strToQop</span> <span class='hs-varid'>qs</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>map</span> <span class='hs-varid'>toLower</span> <span class='hs-layout'>(</span><span class='hs-varid'>trim</span> <span class='hs-varid'>qs</span><span class='hs-layout'>)</span> <span class='hs-keyword'>of</span>
<a name="line-202"></a> <span class='hs-str'>"auth"</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Just</span> <span class='hs-conid'>QopAuth</span>
<a name="line-203"></a> <span class='hs-str'>"auth-int"</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Just</span> <span class='hs-conid'>QopAuthInt</span>
<a name="line-204"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Nothing</span>
<a name="line-205"></a>
<a name="line-206"></a> <span class='hs-varid'>readAlgorithm</span> <span class='hs-varid'>astr</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>map</span> <span class='hs-varid'>toLower</span> <span class='hs-layout'>(</span><span class='hs-varid'>trim</span> <span class='hs-varid'>astr</span><span class='hs-layout'>)</span> <span class='hs-keyword'>of</span>
<a name="line-207"></a> <span class='hs-str'>"md5"</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Just</span> <span class='hs-conid'>AlgMD5</span>
<a name="line-208"></a> <span class='hs-str'>"md5-sess"</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Just</span> <span class='hs-conid'>AlgMD5sess</span>
<a name="line-209"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Nothing</span>
<a name="line-210"></a>
<a name="line-211"></a><a name="word"></a><span class='hs-definition'>word</span><span class='hs-layout'>,</span> <span class='hs-varid'>quotedstring</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Parser</span> <span class='hs-conid'>String</span>
<a name="line-212"></a><a name="quotedstring"></a><span class='hs-definition'>quotedstring</span> <span class='hs-keyglyph'>=</span>
<a name="line-213"></a> <span class='hs-keyword'>do</span> <span class='hs-layout'>{</span> <span class='hs-varid'>char</span> <span class='hs-chr'>'"'</span> <span class='hs-comment'>-- "</span>
<a name="line-214"></a> <span class='hs-layout'>;</span> <span class='hs-varid'>str</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>many</span> <span class='hs-layout'>(</span><span class='hs-varid'>satisfy</span> <span class='hs-varop'>$</span> <span class='hs-varid'>not</span> <span class='hs-varop'>.</span> <span class='hs-layout'>(</span><span class='hs-varop'>==</span><span class='hs-chr'>'"'</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-215"></a> <span class='hs-layout'>;</span> <span class='hs-varid'>char</span> <span class='hs-chr'>'"'</span>
<a name="line-216"></a> <span class='hs-layout'>;</span> <span class='hs-varid'>return</span> <span class='hs-varid'>str</span>
<a name="line-217"></a> <span class='hs-layout'>}</span>
<a name="line-218"></a>
<a name="line-219"></a><span class='hs-definition'>word</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>many1</span> <span class='hs-layout'>(</span><span class='hs-varid'>satisfy</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>x</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>isAlphaNum</span> <span class='hs-varid'>x</span> <span class='hs-varop'>||</span> <span class='hs-varid'>x</span><span class='hs-varop'>==</span><span class='hs-chr'>'_'</span> <span class='hs-varop'>||</span> <span class='hs-varid'>x</span><span class='hs-varop'>==</span><span class='hs-chr'>'.'</span> <span class='hs-varop'>||</span> <span class='hs-varid'>x</span><span class='hs-varop'>==</span><span class='hs-chr'>'-'</span> <span class='hs-varop'>||</span> <span class='hs-varid'>x</span><span class='hs-varop'>==</span><span class='hs-chr'>':'</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
</pre></body>
</html>
