2 // $Id: XmlRpcServer.php,v 1.5 2003-02-21 04:12:05 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 * Urlencode ASCII control characters.
129 * (And control characters...)
135 function UrlencodeControlCharacters($str) {
136 return preg_replace('/([\x00-\x1F])/e', "urlencode('\\1')", $str);
140 * Convert a short string (page name, author) to xmlrpcval.
142 function short_string ($str) {
143 return new xmlrpcval(UrlencodeControlCharacters(utf8_encode($str)), 'string');
147 * Convert a large string (page content) to xmlrpcval.
149 function long_string ($str) {
150 return new xmlrpcval(utf8_encode($str), 'base64');
154 * Decode a short string (e.g. page name)
156 function short_string_decode ($str) {
157 return utf8_decode(urldecode($str));
161 * Get an xmlrpc "No such page" error message
163 function NoSuchPage ()
165 global $xmlrpcerruser;
166 return new xmlrpcresp(0, $xmlrpcerruser + 1, "No such page");
170 // ****************************************************************************
171 // Main API functions follow
172 // ****************************************************************************
176 * int getRPCVersionSupported(): Returns 1 for this version of the API
178 $wiki_dmap['getRPCVersionSupported']
179 = array('signature' => array(array($xmlrpcInt)),
180 'documentation' => 'Get the version of the wiki API',
181 'function' => 'getRPCVersionSupported');
183 // The function must be a function in the global scope which services the XML-RPC
185 function getRPCVersionSupported($params)
187 return new xmlrpcresp(new xmlrpcval(WIKI_XMLRPC_VERSION, "int"));
191 * array getRecentChanges(Date timestamp) : Get list of changed pages since
192 * timestamp, which should be in UTC. The result is an array, where each element
194 * name (string) : Name of the page. The name is UTF-8 with URL encoding to make it ASCII.
195 * lastModified (date) : Date of last modification, in UTC.
196 * author (string) : Name of the author (if available). Again, name is UTF-8 with URL encoding.
197 * version (int) : Current version.
198 * A page MAY be specified multiple times. A page MAY NOT be specified multiple
199 * times with the same modification date.
201 $wiki_dmap['getRecentChanges']
202 = array('signature' => array(array($xmlrpcArray, $xmlrpcDateTime)),
203 'documentation' => 'Get a list of changed pages since [timestamp]',
204 'function' => 'getRecentChanges');
206 function getRecentChanges($params)
209 // Get the first parameter as an ISO 8601 date. Assume UTC
210 $encoded_date = $params->getParam(0);
211 $datetime = iso8601_decode($encoded_date->scalarval(), 1);
212 $dbh = $request->getDbh();
214 $iterator = $dbh->mostRecent(array('since' => $datetime));
215 while ($page = $iterator->next()) {
216 // $page contains a WikiDB_PageRevision object
217 // no need to url encode $name, because it is already stored in that format ???
218 $name = short_string($page->getPageName());
219 $lastmodified = new xmlrpcval(iso8601_encode($page->get('mtime')), "dateTime.iso8601");
220 $author = short_string($page->get('author'));
221 $version = new xmlrpcval($page->getVersion(), 'int');
223 // Build an array of xmlrpc structs
224 $pages[] = new xmlrpcval(array('name'=>$name,
225 'lastModified'=>$lastmodified,
227 'version'=>$version),
230 return new xmlrpcresp(new xmlrpcval($pages, "array"));
235 * base64 getPage( String pagename ): Get the raw Wiki text of page, latest version.
236 * Page name must be UTF-8, with URL encoding. Returned value is a binary object,
237 * with UTF-8 encoded page data.
239 $wiki_dmap['getPage']
240 = array('signature' => array(array($xmlrpcBase64, $xmlrpcString)),
241 'documentation' => 'Get the raw Wiki text of the current version of a page',
242 'function' => 'getPage');
244 function getPage($params)
246 $revision = _getPageRevision($params);
251 return new xmlrpcresp(long_string($revision->getPackedContent()));
256 * base64 getPageVersion( String pagename, int version ): Get the raw Wiki text of page.
257 * Returns UTF-8, expects UTF-8 with URL encoding.
259 $wiki_dmap['getPageVersion']
260 = array('signature' => array(array($xmlrpcBase64, $xmlrpcString, $xmlrpcInt)),
261 'documentation' => 'Get the raw Wiki text of a page version',
262 'function' => 'getPageVersion');
264 function getPageVersion($params)
266 // error checking is done in getPage
267 return getPage($params);
271 * base64 getPageHTML( String pagename ): Return page in rendered HTML.
272 * Returns UTF-8, expects UTF-8 with URL encoding.
275 $wiki_dmap['getPageHTML']
276 = array('signature' => array(array($xmlrpcBase64, $xmlrpcString)),
277 'documentation' => 'Get the current version of a page rendered in HTML',
278 'function' => 'getPageHTML');
280 function getPageHTML($params)
282 $revision = _getPageRevision($params);
286 $content = $revision->getTransformedContent();
287 $html = $content->asXML();
288 // HACK: Get rid of outer <div class="wikitext">
289 if (preg_match('/^\s*<div class="wikitext">/', $html, $m1)
290 && preg_match('@</div>\s*$@', $html, $m2)) {
291 $html = substr($html, strlen($m1[0]), -strlen($m2[0]));
294 return new xmlrpcresp(long_string($html));
298 * base64 getPageHTMLVersion( String pagename, int version ): Return page in rendered HTML, UTF-8.
300 $wiki_dmap['getPageHTMLVersion']
301 = array('signature' => array(array($xmlrpcBase64, $xmlrpcString, $xmlrpcInt)),
302 'documentation' => 'Get a version of a page rendered in HTML',
303 'function' => 'getPageHTMLVersion');
305 function getPageHTMLVersion($params)
307 return getPageHTML($params);
311 * getAllPages(): Returns a list of all pages. The result is an array of strings.
313 $wiki_dmap['getAllPages']
314 = array('signature' => array(array($xmlrpcArray)),
315 'documentation' => 'Returns a list of all pages as an array of strings',
316 'function' => 'getAllPages');
318 function getAllPages($params)
321 $dbh = $request->getDbh();
322 $iterator = $dbh->getAllPages();
324 while ($page = $iterator->next()) {
325 $pages[] = short_string($page->getName());
327 return new xmlrpcresp(new xmlrpcval($pages, "array"));
331 * struct getPageInfo( string pagename ) : returns a struct with elements:
332 * name (string): the canonical page name
333 * lastModified (date): Last modification date
334 * version (int): current version
335 * author (string): author name
337 $wiki_dmap['getPageInfo']
338 = array('signature' => array(array($xmlrpcStruct, $xmlrpcString)),
339 'documentation' => 'Gets info about the current version of a page',
340 'function' => 'getPageInfo');
342 function getPageInfo($params)
344 $revision = _getPageRevision($params);
348 $name = short_string($revision->getPageName());
349 $version = new xmlrpcval ($revision->getVersion(), "int");
350 $lastmodified = new xmlrpcval(iso8601_encode($revision->get('mtime'), 0),
352 $author = short_string($revision->get('author'));
354 return new xmlrpcresp(new xmlrpcval(array('name' => $name,
355 'lastModified' => $lastmodified,
356 'version' => $version,
357 'author' => $author),
362 * struct getPageInfoVersion( string pagename, int version ) : returns
363 * a struct just like plain getPageInfo(), but this time for a
366 $wiki_dmap['getPageInfoVersion']
367 = array('signature' => array(array($xmlrpcStruct, $xmlrpcString, $xmlrpcInt)),
368 'documentation' => 'Gets info about a page version',
369 'function' => 'getPageInfoVersion');
371 function getPageInfoVersion($params)
373 return getPageInfo($params);
377 /* array listLinks( string pagename ): Lists all links for a given page. The
378 * returned array contains structs, with the following elements:
379 * name (string) : The page name or URL the link is to.
380 * type (int) : The link type. Zero (0) for internal Wiki link,
381 * one (1) for external link (URL - image link, whatever).
383 $wiki_dmap['listLinks']
384 = array('signature' => array(array($xmlrpcArray, $xmlrpcString)),
385 'documentation' => 'Lists all links for a given page',
386 'function' => 'listLinks');
388 function listLinks($params)
392 $ParamPageName = $params->getParam(0);
393 $pagename = short_string_decode($ParamPageName->scalarval());
394 $dbh = $request->getDbh();
395 if (! $dbh->isWikiPage($pagename))
398 $page = $dbh->getPage($pagename);
400 $linkiterator = $page->getLinks(false);
401 $linkstruct = array();
402 while ($currentpage = $linkiterator->next()) {
403 $currentname = $currentpage->getName();
404 $name = short_string($currentname);
405 // NB no clean way to extract a list of external links yet, so
406 // only internal links returned. ie all type 'local'.
407 $type = new xmlrpcval('local');
409 // Compute URL to page
411 $currentrev = $currentpage->getCurrentRevision();
412 if ($currentrev->hasDefaultContents())
413 $args['action'] = 'edit';
415 // FIXME: Autodetected value of VIRTUAL_PATH wrong,
416 // this make absolute URLs contstructed by WikiURL wrong.
417 // Also, if USE_PATH_INFO is false, WikiURL is wrong
418 // due to its use of SCRIPT_NAME.
419 $use_abspath = USE_PATH_INFO && ! preg_match('/RPC2.php$/', VIRTUAL_PATH);
420 $href = new xmlrpcval(WikiURL($currentname, $args, $use_abspath));
422 $linkstruct[] = new xmlrpcval(array('name'=> $name,
429 $current = $page->getCurrentRevision();
430 $content = $current->getTransformedContent();
431 $links = $content->getLinkInfo();
433 foreach ($links as $link) {
434 // We used to give an href for unknown pages that
435 // included action=edit. I think that's probably the
436 // wrong thing to do.
437 $linkstruct[] = new xmlrpcval(array('name'=> short_string($link->page),
438 'type'=> new xmlrpcval($link->type),
439 'href' => short_string($link->href)),
443 return new xmlrpcresp(new xmlrpcval ($linkstruct, "array"));
446 // Construct the server instance, and set up the despatch map, which maps
447 // the XML-RPC methods onto the wiki functions
448 class XmlRpcServer extends xmlrpc_server
450 function XmlRpcServer ($request = false) {
452 foreach ($wiki_dmap as $name => $val)
453 $dmap['wiki.' . $name] = $val;
455 $this->xmlrpc_server($dmap, 0 /* delay service*/);
458 function service () {
459 global $ErrorManager;
461 $ErrorManager->pushErrorHandler(new WikiMethodCb($this, '_errorHandler'));
462 xmlrpc_server::service();
463 $ErrorManager->popErrorHandler();
466 function _errorHandler ($e) {
467 $msg = htmlspecialchars($e->asString());
468 // '--' not allowed within xml comment
469 $msg = str_replace('--', '--', $msg);
470 xmlrpc_debugmsg($msg);
476 // (c-file-style: "gnu")
481 // c-hanging-comment-ender-p: nil
482 // indent-tabs-mode: nil