2 // $Id: XmlRpcServer.php,v 1.1 2002-09-14 22:28:33 dairiki Exp $
3 /* Copyright (C) 2002, Lawrence Akka <lakka@users.sourceforge.net>
7 * This file is part of PhpWiki.
9 * PhpWiki is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * PhpWiki is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with PhpWiki; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 * LIBRARY USED - POSSIBLE PROBLEMS
24 * ================================
26 * This file provides an XML-RPC interface for PhpWiki. It uses the XML-RPC
27 * library for PHP by Edd Dumbill - see http://xmlrpc.usefulinc.com/php.html
30 * PHP >= 4.1.0 includes experimental support for the xmlrpc-epi c library
31 * written by Dan Libby (see http://uk2.php.net/manual/en/ref.xmlrpc.php). This
32 * is not compiled into PHP by default. If it *is* compiled into your installation
33 * (ie you have --with-xmlrpc) there may well be namespace conflicts with the xml-rpc
34 * library used by this code, and you will get errors.
36 * INTERFACE SPECIFICTION
37 * ======================
39 * The interface specification is that discussed at
40 * http://www.ecyrd.com/JSPWiki/Wiki.jsp?page=WikiRPCInterface
42 * See also http://www.usemod.com/cgi-bin/mb.pl?XmlRpc
44 * NB: All XMLRPC methods should be prefixed with "wiki."
50 // Remove all warnings from xmlrpc.inc
51 // Return list of external links in listLinks
54 // Intercept GET requests from confused users. Only POST is allowed here!
55 // There is some indication that $HTTP_SERVER_VARS is deprecated in php > 4.1.0
56 // in favour of $_Server, but as far as I know, it still works.
57 if ($GLOBALS['HTTP_SERVER_VARS']['REQUEST_METHOD'] != "POST")
59 die('This is the address of the XML-RPC interface.' .
60 ' You must use XML-RPC calls to access information here');
63 // Include the php XML-RPC library
65 // All these global declarations make it so that this file
66 // (XmlRpcServer.php) can be included within a function body
67 // (not in global scope), and things will still work....
69 global $xmlrpcI4, $xmlrpcInt, $xmlrpcBoolean, $xmlrpcDouble, $xmlrpcString;
70 global $xmlrpcDateTime, $xmlrpcBase64, $xmlrpcArray, $xmlrpcStruct;
73 global $xmlrpcerr, $xmlrpcstr;
74 global $xmlrpc_defencoding;
75 global $xmlrpcName, $xmlrpcVersion;
76 global $xmlrpcerruser, $xmlrpcerrxml;
77 global $xmlrpc_backslash;
79 include_once("lib/XMLRPC/xmlrpc.inc");
81 global $_xmlrpcs_dmap;
82 global $_xmlrpcs_debug;
83 include_once("lib/XMLRPC/xmlrpcs.inc");
86 define ("WIKI_XMLRPC_VERSION", 1);
89 * Helper function: Looks up a page revision (most recent by default) in the wiki database
91 * @param xmlrpcmsg $params : string pagename [int version]
92 * @return WikiDB _PageRevision object, or false if no such page
95 function _getPageRevision ($params)
98 $ParamPageName = $params->getParam(0);
99 $ParamVersion = $params->getParam(1);
100 $pagename = short_string_decode($ParamPageName->scalarval());
101 $version = ($ParamVersion) ? ($ParamVersion->scalarval()):(0);
102 // FIXME: test for version <=0 ??
103 $dbh = $request->getDbh();
104 if ($dbh->isWikiPage($pagename)) {
105 $page = $dbh->getPage($pagename);
107 $revision = $page->getCurrentRevision();
109 $revision = $page->getRevision($version);
117 * Helper functions for encoding/decoding strings.
119 * According to WikiRPC spec, all returned strings take one of either
120 * two forms. Short strings (page names, and authors) are converted to
121 * UTF-8, then rawurlencode()d, and returned as XML-RPC <code>strings</code>.
122 * Long strings (page content) are converted to UTF-8 then returned as
123 * XML-RPC <code>base64</code> binary objects.
127 * Convert a short string (page name, author) to xmlrpcval.
129 function short_string ($str) {
130 return new xmlrpcval(rawurlencode(utf8_encode($str)), 'string');
134 * Convert a large string (page content) to xmlrpcval.
136 function long_string ($str) {
137 return new xmlrpcval(utf8_encode($str), 'base64');
141 * Decode a short string (e.g. page name)
143 function short_string_decode ($str) {
144 return utf8_decode(urldecode($str));
148 * Get an xmlrpc "No such page" error message
150 function NoSuchPage ()
152 global $xmlrpcerruser;
153 return new xmlrpcresp(0, $xmlrpcerruser + 1, "No such page");
157 // ****************************************************************************
158 // Main API functions follow
159 // ****************************************************************************
163 * int getRPCVersionSupported(): Returns 1 for this version of the API
165 $wiki_dmap['getRPCVersionSupported']
166 = array('signature' => array(array($xmlrpcInt)),
167 'documentation' => 'Get the version of the wiki API',
168 'function' => 'getRPCVersionSupported');
170 // The function must be a function in the global scope which services the XML-RPC
172 function getRPCVersionSupported($params)
174 return new xmlrpcresp(new xmlrpcval(WIKI_XMLRPC_VERSION, "int"));
178 * array getRecentChanges(Date timestamp) : Get list of changed pages since
179 * timestamp, which should be in UTC. The result is an array, where each element
181 * name (string) : Name of the page. The name is UTF-8 with URL encoding to make it ASCII.
182 * lastModified (date) : Date of last modification, in UTC.
183 * author (string) : Name of the author (if available). Again, name is UTF-8 with URL encoding.
184 * version (int) : Current version.
185 * A page MAY be specified multiple times. A page MAY NOT be specified multiple
186 * times with the same modification date.
188 $wiki_dmap['getRecentChanges']
189 = array('signature' => array(array($xmlrpcArray, $xmlrpcDateTime)),
190 'documentation' => 'Get a list of changed pages since [timestamp]',
191 'function' => 'getRecentChanges');
193 function getRecentChanges($params)
196 // Get the first parameter as an ISO 8601 date. Assume UTC
197 $encoded_date = $params->getParam(0);
198 $datetime = iso8601_decode($encoded_date->scalarval(), 1);
199 $dbh = $request->getDbh();
201 $iterator = $dbh->mostRecent(array('since' => $datetime));
202 while ($page = $iterator->next()) {
203 // $page contains a WikiDB_PageRevision object
204 // no need to url encode $name, because it is already stored in that format ???
205 $name = short_string($page->getPageName());
206 $lastmodified = new xmlrpcval(iso8601_encode($page->get('mtime')), "dateTime.iso8601");
207 $author = short_string($page->get('author'));
208 $version = new xmlrpcval($page->getVersion(), 'int');
210 // Build an array of xmlrpc structs
211 $pages[] = new xmlrpcval(array('name'=>$name,
212 'lastModified'=>$lastmodified,
214 'version'=>$version),
217 return new xmlrpcresp(new xmlrpcval($pages, "array"));
222 * base64 getPage( String pagename ): Get the raw Wiki text of page, latest version.
223 * Page name must be UTF-8, with URL encoding. Returned value is a binary object,
224 * with UTF-8 encoded page data.
226 $wiki_dmap['getPage']
227 = array('signature' => array(array($xmlrpcBase64, $xmlrpcString)),
228 'documentation' => 'Get the raw Wiki text of the current version of a page',
229 'function' => 'getPage');
231 function getPage($params)
233 $revision = _getPageRevision($params);
238 return new xmlrpcresp(long_string($revision->getPackedContent()));
243 * base64 getPageVersion( String pagename, int version ): Get the raw Wiki text of page.
244 * Returns UTF-8, expects UTF-8 with URL encoding.
246 $wiki_dmap['getPageVersion']
247 = array('signature' => array(array($xmlrpcBase64, $xmlrpcString, $xmlrpcInt)),
248 'documentation' => 'Get the raw Wiki text of a page version',
249 'function' => 'getPageVersion');
251 function getPageVersion($params)
253 // error checking is done in getPage
254 return getPage($params);
258 * base64 getPageHTML( String pagename ): Return page in rendered HTML.
259 * Returns UTF-8, expects UTF-8 with URL encoding.
262 $wiki_dmap['getPageHTML']
263 = array('signature' => array(array($xmlrpcBase64, $xmlrpcString)),
264 'documentation' => 'Get the current version of a page rendered in HTML',
265 'function' => 'getPageHTML');
267 function getPageHTML($params)
269 $revision = _getPageRevision($params);
273 include_once('lib/PageType.php');
274 $content = array(PageType($revision));
276 // Get rid of outer <div class="wikitext">
277 while (count($content) == 1 && isa($content[0], 'XmlContent')) {
278 if (isa($content[0], 'XmlElement') && $content[0]->getTag() != 'div')
280 $content = $content[0]->getContent();
283 return new xmlrpcresp(long_string(AsXML($content)));
287 * base64 getPageHTMLVersion( String pagename, int version ): Return page in rendered HTML, UTF-8.
289 $wiki_dmap['getPageHTMLVersion']
290 = array('signature' => array(array($xmlrpcBase64, $xmlrpcString, $xmlrpcInt)),
291 'documentation' => 'Get a version of a page rendered in HTML',
292 'function' => 'getPageHTMLVersion');
294 function getPageHTMLVersion($params)
296 return getPageHTML($params);
300 * getAllPages(): Returns a list of all pages. The result is an array of strings.
302 $wiki_dmap['getAllPages']
303 = array('signature' => array(array($xmlrpcArray)),
304 'documentation' => 'Returns a list of all pages as an array of strings',
305 'function' => 'getAllPages');
307 function getAllPages($params)
310 $dbh = $request->getDbh();
311 $iterator = $dbh->getAllPages();
313 while ($page = $iterator->next()) {
314 $pages[] = short_string($page->getName());
316 return new xmlrpcresp(new xmlrpcval($pages, "array"));
320 * struct getPageInfo( string pagename ) : returns a struct with elements:
321 * name (string): the canonical page name
322 * lastModified (date): Last modification date
323 * version (int): current version
324 * author (string): author name
326 $wiki_dmap['getPageInfo']
327 = array('signature' => array(array($xmlrpcStruct, $xmlrpcString)),
328 'documentation' => 'Gets info about the current version of a page',
329 'function' => 'getPageInfo');
331 function getPageInfo($params)
333 $revision = _getPageRevision($params);
337 $name = short_string($revision->getPageName());
338 $version = new xmlrpcval ($revision->getVersion(), "int");
339 $lastmodified = new xmlrpcval(iso8601_encode($revision->get('mtime'), 0),
341 $author = short_string($revision->get('author'));
343 return new xmlrpcresp(new xmlrpcval(array('name' => $name,
344 'lastModified' => $lastmodified,
345 'version' => $version,
346 'author' => $author),
351 * struct getPageInfoVersion( string pagename, int version ) : returns
352 * a struct just like plain getPageInfo(), but this time for a
355 $wiki_dmap['getPageInfoVersion']
356 = array('signature' => array(array($xmlrpcStruct, $xmlrpcString, $xmlrpcInt)),
357 'documentation' => 'Gets info about a page version',
358 'function' => 'getPageInfoVersion');
360 function getPageInfoVersion($params)
362 return getPageInfo($params);
366 /* array listLinks( string pagename ): Lists all links for a given page. The
367 * returned array contains structs, with the following elements:
368 * name (string) : The page name or URL the link is to.
369 * type (int) : The link type. Zero (0) for internal Wiki link,
370 * one (1) for external link (URL - image link, whatever).
372 $wiki_dmap['listLinks']
373 = array('signature' => array(array($xmlrpcArray, $xmlrpcString)),
374 'documentation' => 'Lists all links for a given page',
375 'function' => 'listLinks');
377 function listLinks($params)
381 $ParamPageName = $params->getParam(0);
382 $pagename = short_string_decode($ParamPageName->scalarval());
383 $dbh = $request->getDbh();
384 if (! $dbh->isWikiPage($pagename))
387 $page = $dbh->getPage($pagename);
388 $linkiterator = $page->getLinks();
389 $linkstruct = array();
390 while ($currentpage = $linkiterator->next()) {
391 $currentname = $currentpage->getName();
392 $name = short_string($currentname);
393 // NB no clean way to extract a list of external links yet, so
394 // only internal links returned. ie all type 'local'.
395 $type = new xmlrpcval('local');
397 // Compute URL to page
399 $currentrev = $currentpage->getCurrentRevision();
400 if ($currentrev->hasDefaultContents())
401 $args['action'] = 'edit';
403 // FIXME: Autodetected value of VIRTUAL_PATH wrong,
404 // this make absolute URLs contstructed by WikiURL wrong.
405 // Also, if USE_PATH_INFO is false, WikiURL is wrong
406 // due to its use of SCRIPT_NAME.
407 $use_abspath = USE_PATH_INFO && ! preg_match('/RPC2.php$/', VIRTUAL_PATH);
408 $href = new xmlrpcval(WikiURL($currentname, $args, $use_abspath));
410 $linkstruct[] = new xmlrpcval(array('name'=> $name,
415 return new xmlrpcresp(new xmlrpcval ($linkstruct, "array"));
418 // Construct the server instance, and set up the despatch map, which maps
419 // the XML-RPC methods onto the wiki functions
420 class XmlRpcServer extends xmlrpc_server
422 function XmlRpcServer ($request = false) {
424 foreach ($wiki_dmap as $name => $val)
425 $dmap['wiki.' . $name] = $val;
427 $this->xmlrpc_server($dmap, 0 /* delay service*/);
430 function service () {
431 global $ErrorManager;
434 $ErrorManager->pushErrorHandler(new WikiMethodCb($this, '_errorHandler'));
436 xmlrpc_server::service();
438 $ErrorManager->popErrorHandler();
442 function _errorHandler ($e) {
443 $msg = htmlspecialchars($e->asString());
444 // '--' not allowed within xml comment
445 $msg = str_replace('--', '--', $msg);
446 $this->errbuf .= sprintf("<!--\n%s\n-->", $msg);
452 // (c-file-style: "gnu")
457 // c-hanging-comment-ender-p: nil
458 // indent-tabs-mode: nil