ILIAS  release_5-1 Revision 5.0.0-5477-g43f3e3fab5f
XRI.php File Reference

Go to the source code of this file.

Namespaces

namespace  OpenID
 This is the PHP OpenID library by JanRain, Inc.
 

Functions

 Auth_Yadis_getDefaultProxy ()
 
 Auth_Yadis_getXRIAuthorities ()
 
 Auth_Yadis_getEscapeRE ()
 
 Auth_Yadis_getXrefRE ()
 
 Auth_Yadis_identifierScheme ($identifier)
 
 Auth_Yadis_toIRINormal ($xri)
 
 _escape_xref ($xref_match)
 
 Auth_Yadis_escapeForIRI ($xri)
 
 Auth_Yadis_toURINormal ($xri)
 
 Auth_Yadis_iriToURI ($iri)
 
 Auth_Yadis_XRIAppendArgs ($url, $args)
 
 Auth_Yadis_providerIsAuthoritative ($providerID, $canonicalID)
 
 Auth_Yadis_rootAuthority ($xri)
 
 Auth_Yadis_XRI ($xri)
 
 Auth_Yadis_getCanonicalID ($iname, $xrds)
 

Function Documentation

◆ _escape_xref()

_escape_xref (   $xref_match)

Definition at line 63 of file XRI.php.

64{
65 $xref = $xref_match[0];
66 $xref = str_replace('/', '%2F', $xref);
67 $xref = str_replace('?', '%3F', $xref);
68 $xref = str_replace('#', '%23', $xref);
69 return $xref;
70}

◆ Auth_Yadis_escapeForIRI()

Auth_Yadis_escapeForIRI (   $xri)

Definition at line 72 of file XRI.php.

73{
74 $xri = str_replace('%', '%25', $xri);
75 $xri = preg_replace_callback(Auth_Yadis_getXrefRE(),
76 '_escape_xref', $xri);
77 return $xri;
78}
Auth_Yadis_getXrefRE()
Definition: XRI.php:38

References Auth_Yadis_getXrefRE().

Referenced by Auth_Yadis_toIRINormal().

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◆ Auth_Yadis_getCanonicalID()

Auth_Yadis_getCanonicalID (   $iname,
  $xrds 
)

Definition at line 187 of file XRI.php.

188{
189 // Returns false or a canonical ID value.
190
191 // Now nodes are in reverse order.
192 $xrd_list = array_reverse($xrds->allXrdNodes);
193 $parser = $xrds->parser;
194 $node = $xrd_list[0];
195
196 $canonicalID_nodes = $parser->evalXPath('xrd:CanonicalID', $node);
197
198 if (!$canonicalID_nodes) {
199 return false;
200 }
201
202 $canonicalID = $canonicalID_nodes[0];
203 $canonicalID = Auth_Yadis_XRI($parser->content($canonicalID));
204
205 $childID = $canonicalID;
206
207 for ($i = 1; $i < count($xrd_list); $i++) {
208 $xrd = $xrd_list[$i];
209
210 $parent_sought = substr($childID, 0, strrpos($childID, '!'));
211 $parentCID = $parser->evalXPath('xrd:CanonicalID', $xrd);
212 if (!$parentCID) {
213 return false;
214 }
215 $parentCID = Auth_Yadis_XRI($parser->content($parentCID[0]));
216
217 if (strcasecmp($parent_sought, $parentCID)) {
218 // raise XRDSFraud.
219 return false;
220 }
221
222 $childID = $parent_sought;
223 }
224
225 $root = Auth_Yadis_rootAuthority($iname);
226 if (!Auth_Yadis_providerIsAuthoritative($root, $childID)) {
227 // raise XRDSFraud.
228 return false;
229 }
230
231 return $canonicalID;
232}
Auth_Yadis_providerIsAuthoritative($providerID, $canonicalID)
Definition: XRI.php:137
Auth_Yadis_XRI($xri)
Definition: XRI.php:179
Auth_Yadis_rootAuthority($xri)
Definition: XRI.php:144

References Auth_Yadis_providerIsAuthoritative(), Auth_Yadis_rootAuthority(), and Auth_Yadis_XRI().

Referenced by Auth_Yadis_ProxyResolver\query().

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◆ Auth_Yadis_getDefaultProxy()

Auth_Yadis_getDefaultProxy ( )

Definition at line 16 of file XRI.php.

17{
18 return 'http://xri.net/';
19}

Referenced by Auth_Yadis_ProxyResolver\Auth_Yadis_ProxyResolver().

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◆ Auth_Yadis_getEscapeRE()

Auth_Yadis_getEscapeRE ( )

Definition at line 26 of file XRI.php.

27{
28 $parts = array();
29 foreach (array_merge(Auth_Yadis_getUCSChars(),
30 Auth_Yadis_getIPrivateChars()) as $pair) {
31 list($m, $n) = $pair;
32 $parts[] = sprintf("%s-%s", chr($m), chr($n));
33 }
34
35 return sprintf('/[%s]/', implode('', $parts));
36}
Auth_Yadis_getUCSChars()
Definition: Misc.php:12
Auth_Yadis_getIPrivateChars()
Definition: Misc.php:35
$n
Definition: RandomTest.php:80

References $n, Auth_Yadis_getIPrivateChars(), and Auth_Yadis_getUCSChars().

Referenced by Auth_Yadis_iriToURI().

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◆ Auth_Yadis_getXrefRE()

Auth_Yadis_getXrefRE ( )

Definition at line 38 of file XRI.php.

39{
40 return '/\‍((.*?)\‍)/';
41}

Referenced by Auth_Yadis_escapeForIRI().

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◆ Auth_Yadis_getXRIAuthorities()

Auth_Yadis_getXRIAuthorities ( )

Definition at line 21 of file XRI.php.

22{
23 return array('!', '=', '@', '+', '$', '(');
24}

Referenced by Auth_Yadis_identifierScheme(), and Auth_Yadis_rootAuthority().

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◆ Auth_Yadis_identifierScheme()

Auth_Yadis_identifierScheme (   $identifier)

Definition at line 43 of file XRI.php.

44{
45 if (Auth_Yadis_startswith($identifier, 'xri://') ||
46 ($identifier &&
47 in_array($identifier[0], Auth_Yadis_getXRIAuthorities()))) {
48 return "XRI";
49 } else {
50 return "URI";
51 }
52}
Auth_Yadis_startswith($s, $stuff)
Definition: Misc.php:54
Auth_Yadis_getXRIAuthorities()
Definition: XRI.php:21

References Auth_Yadis_getXRIAuthorities(), and Auth_Yadis_startswith().

Referenced by Auth_OpenID_discover().

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◆ Auth_Yadis_iriToURI()

Auth_Yadis_iriToURI (   $iri)

Definition at line 85 of file XRI.php.

86{
87 if (1) {
88 return $iri;
89 } else {
90 // According to RFC 3987, section 3.1, "Mapping of IRIs to URIs"
91 return preg_replace_callback(Auth_Yadis_getEscapeRE(),
92 'Auth_Yadis_pct_escape_unicode', $iri);
93 }
94}
Auth_Yadis_getEscapeRE()
Definition: XRI.php:26

References Auth_Yadis_getEscapeRE().

Referenced by Auth_Yadis_toURINormal().

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◆ Auth_Yadis_providerIsAuthoritative()

Auth_Yadis_providerIsAuthoritative (   $providerID,
  $canonicalID 
)

Definition at line 137 of file XRI.php.

138{
139 $lastbang = strrpos($canonicalID, '!');
140 $p = substr($canonicalID, 0, $lastbang);
141 return $p == $providerID;
142}

Referenced by Auth_Yadis_getCanonicalID().

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◆ Auth_Yadis_rootAuthority()

Auth_Yadis_rootAuthority (   $xri)

Definition at line 144 of file XRI.php.

145{
146 // Return the root authority for an XRI.
147
148 $root = null;
149
150 if (Auth_Yadis_startswith($xri, 'xri://')) {
151 $xri = substr($xri, 6);
152 }
153
154 $authority = explode('/', $xri, 2);
155 $authority = $authority[0];
156 if ($authority[0] == '(') {
157 // Cross-reference.
158 // XXX: This is incorrect if someone nests cross-references so
159 // there is another close-paren in there. Hopefully nobody
160 // does that before we have a real xriparse function.
161 // Hopefully nobody does that *ever*.
162 $root = substr($authority, 0, strpos($authority, ')') + 1);
163 } else if (in_array($authority[0], Auth_Yadis_getXRIAuthorities())) {
164 // Other XRI reference.
165 $root = $authority[0];
166 } else {
167 // IRI reference.
168 $_segments = explode("!", $authority);
169 $segments = array();
170 foreach ($_segments as $s) {
171 $segments = array_merge($segments, explode("*", $s));
172 }
173 $root = $segments[0];
174 }
175
176 return Auth_Yadis_XRI($root);
177}

References Auth_Yadis_getXRIAuthorities(), Auth_Yadis_startswith(), and Auth_Yadis_XRI().

Referenced by Auth_Yadis_getCanonicalID().

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◆ Auth_Yadis_toIRINormal()

Auth_Yadis_toIRINormal (   $xri)

Definition at line 54 of file XRI.php.

55{
56 if (!Auth_Yadis_startswith($xri, 'xri://')) {
57 $xri = 'xri://' . $xri;
58 }
59
60 return Auth_Yadis_escapeForIRI($xri);
61}
Auth_Yadis_escapeForIRI($xri)
Definition: XRI.php:72

References Auth_Yadis_escapeForIRI(), and Auth_Yadis_startswith().

Referenced by Auth_Yadis_toURINormal().

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◆ Auth_Yadis_toURINormal()

Auth_Yadis_toURINormal (   $xri)

Definition at line 80 of file XRI.php.

81{
83}
Auth_Yadis_iriToURI($iri)
Definition: XRI.php:85
Auth_Yadis_toIRINormal($xri)
Definition: XRI.php:54

References Auth_Yadis_iriToURI(), and Auth_Yadis_toIRINormal().

Referenced by Auth_Yadis_ProxyResolver\queryURL().

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◆ Auth_Yadis_XRI()

Auth_Yadis_XRI (   $xri)

Definition at line 179 of file XRI.php.

180{
181 if (!Auth_Yadis_startswith($xri, 'xri://')) {
182 $xri = 'xri://' . $xri;
183 }
184 return $xri;
185}

References Auth_Yadis_startswith().

Referenced by Auth_Yadis_getCanonicalID(), and Auth_Yadis_rootAuthority().

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◆ Auth_Yadis_XRIAppendArgs()

Auth_Yadis_XRIAppendArgs (   $url,
  $args 
)

Definition at line 97 of file XRI.php.

98{
99 // Append some arguments to an HTTP query. Yes, this is just like
100 // OpenID's appendArgs, but with special seasoning for XRI
101 // queries.
102
103 if (count($args) == 0) {
104 return $url;
105 }
106
107 // Non-empty array; if it is an array of arrays, use multisort;
108 // otherwise use sort.
109 if (array_key_exists(0, $args) &&
110 is_array($args[0])) {
111 // Do nothing here.
112 } else {
113 $keys = array_keys($args);
114 sort($keys);
115 $new_args = array();
116 foreach ($keys as $key) {
117 $new_args[] = array($key, $args[$key]);
118 }
119 $args = $new_args;
120 }
121
122 // According to XRI Resolution section "QXRI query parameters":
123 //
124 // "If the original QXRI had a null query component (only a
125 // leading question mark), or a query component consisting of
126 // only question marks, one additional leading question mark MUST
127 // be added when adding any XRI resolution parameters."
128 if (strpos(rtrim($url, '?'), '?') !== false) {
129 $sep = '&';
130 } else {
131 $sep = '?';
132 }
133
134 return $url . $sep . Auth_OpenID::httpBuildQuery($args);
135}
static httpBuildQuery($data)
Implements the PHP 5 'http_build_query' functionality.
Definition: OpenID.php:296
$url
Definition: shib_logout.php:72

References $url, and Auth_OpenID\httpBuildQuery().

Referenced by Auth_Yadis_ProxyResolver\queryURL().

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