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Check weblog permission in XML-RPC Blogger/MetaWeblog handlers #164

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Check weblog permission in XML-RPC Blogger/MetaWeblog handlers #164

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1dfd10b
Refine XML-RPC weblog access handling
snoopdave Aug 16, 2026
bca0ba0
Expand XML-RPC access handling coverage
snoopdave Aug 29, 2026
2761648
Bound the draft scan behind the XML-RPC recent-posts handlers
snoopdave Aug 29, 2026
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150 changes: 84 additions & 66 deletions app/src/main/java/org/apache/roller/weblogger/webservices/xmlrpc/BaseAPIHandler.java
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Original file line number Diff line number Diff line change
Expand Up @@ -28,9 +28,12 @@
import org.apache.roller.weblogger.config.WebloggerRuntimeConfig;
import org.apache.roller.weblogger.business.WebloggerFactory;
import org.apache.roller.weblogger.business.UserManager;
import org.apache.roller.weblogger.business.WeblogEntryManager;
import org.apache.roller.weblogger.business.WeblogManager;
import org.apache.roller.weblogger.pojos.User;
import org.apache.roller.weblogger.pojos.Weblog;
import org.apache.roller.weblogger.pojos.WeblogEntry;
import org.apache.roller.weblogger.pojos.WeblogPermission;
import org.apache.roller.weblogger.ui.core.RollerContext;
import org.apache.roller.weblogger.util.cache.CacheManager;
import org.apache.xmlrpc.common.XmlRpcNotAuthorizedException;
Expand Down Expand Up @@ -102,97 +105,112 @@ public BaseAPIHandler() {

//------------------------------------------------------------------------
/**
* Returns website, but only if user authenticates and is authorized to edit.
* @param blogid Blogid sent in request (used as website's handle)
* @param username Username sent in request
* @param password Password sent in request
* Returns a weblog only when the authenticated user has the requested
* permission and XML-RPC access is enabled for that weblog.
*/
protected Weblog validate(String blogid, String username, String password)
throws Exception {
boolean authenticated = false;
boolean userEnabled = false;
boolean weblogEnabled = false;
boolean apiEnabled = false;
boolean weblogFound = false;
Weblog website = null;
try {
UserManager userMgr = WebloggerFactory.getWeblogger().getUserManager();
WeblogManager weblogMgr = WebloggerFactory.getWeblogger().getWeblogManager();
User user = userMgr.getUserByUserName(username);

website = weblogMgr.getWeblogByHandle(blogid);
if (website != null) {
weblogFound = true;
weblogEnabled = website.getVisible();
apiEnabled = website.getEnableBloggerApi()
&& WebloggerRuntimeConfig.getBooleanProperty("webservices.enableXmlRpc");
}

if (user != null) {
userEnabled = user.getEnabled();
authenticated = RollerContext.getPasswordEncoder().matches(password, user.getPassword());
}
} catch (Exception e) {
mLogger.error("ERROR internal error validating user", e);
}

if ( !authenticated ) {
throw new XmlRpcNotAuthorizedException(AUTHORIZATION_EXCEPTION_MSG);
}
if ( !userEnabled ) {
throw new XmlRpcNotAuthorizedException(USER_DISABLED_MSG);
}
if ( !weblogEnabled ) {
protected Weblog validate(String blogid, String username, String password,
String requiredAction) throws Exception {
User user = validateUser(username, password);
return validateWeblog(blogid, user, requiredAction);
}

/**
* Validate a weblog for an already authenticated user.
*/
protected Weblog validateWeblog(String blogid, User user,
String requiredAction) throws Exception {
WeblogManager weblogMgr = WebloggerFactory.getWeblogger().getWeblogManager();
Weblog website = weblogMgr.getWeblogByHandle(blogid);

// Use one response for missing, unavailable, and inaccessible weblogs.
if (!isWeblogAvailable(website)
|| !website.hasUserPermission(user, requiredAction)) {
throw new XmlRpcNotAuthorizedException(WEBLOG_DISABLED_MSG);
}
if ( !weblogFound ) {
throw new XmlRpcException(WEBLOG_NOT_FOUND, WEBLOG_NOT_FOUND_MSG);
}
if ( !apiEnabled ) {
if (!Boolean.TRUE.equals(website.getEnableBloggerApi())) {
throw new XmlRpcNotAuthorizedException(BLOGGERAPI_DISABLED_MSG);
}
return website;
}

//------------------------------------------------------------------------
/**
* Returns true if username/password are valid and user is not disabled.
* Returns the authenticated user if username/password are valid and the
* user is not disabled.
* @param username Username sent in request
* @param password Password sent in request
*/
protected boolean validateUser(String username, String password)
throws Exception {
protected User validateUser(String username, String password)
throws Exception {
User user = null;
boolean authenticated = false;
boolean enabled = false;
boolean apiEnabled = false;
try {

UserManager userMgr = WebloggerFactory.getWeblogger().getUserManager();
User user = userMgr.getUserByUserName(username);

if (user != null) {
enabled = user.getEnabled();
authenticated = RollerContext.getPasswordEncoder().matches(password, user.getPassword());

apiEnabled = WebloggerRuntimeConfig.getBooleanProperty("webservices.enableXmlRpc");
user = userMgr.getUserByUserName(username);
if (user != null && RollerContext.getPasswordEncoder() != null) {
authenticated = RollerContext.getPasswordEncoder().matches(
password, user.getPassword());
}
} catch (Exception e) {
mLogger.error("ERROR internal error validating user", e);
}
if ( !authenticated ) {

if (!authenticated) {
throw new XmlRpcNotAuthorizedException(AUTHORIZATION_EXCEPTION_MSG);
}
if ( !enabled ) {

if (!Boolean.TRUE.equals(user.getEnabled())) {
throw new XmlRpcNotAuthorizedException(USER_DISABLED_MSG);
}
if ( !apiEnabled ) {

if (!WebloggerRuntimeConfig.getBooleanProperty("webservices.enableXmlRpc")) {
throw new XmlRpcNotAuthorizedException(BLOGGERAPI_DISABLED_MSG);
}

return authenticated;
}

return user;
}

/**
* Returns an entry only when it belongs to an available XML-RPC weblog and
* the user may edit it. An optional additional weblog action can be
* required for transitions such as publishing.
*/
protected WeblogEntry validateEntry(String postid, User user,
String additionalAction) throws Exception {
WeblogEntry entry = getEntryForWrite(postid, user, additionalAction);
if (entry == null) {
throw new XmlRpcException(INVALID_POSTID, INVALID_POSTID_MSG);
}
return entry;
}

/**
* Nullable form used by Blogger.deletePost(), whose public contract
* returns false when the entry is unavailable.
*/
protected WeblogEntry getEntryForWrite(String postid, User user,
String additionalAction) throws Exception {
WeblogEntryManager entryMgr = WebloggerFactory.getWeblogger()
.getWeblogEntryManager();
WeblogEntry entry = entryMgr.getWeblogEntry(postid);
if (entry == null || !isWeblogAvailable(entry.getWebsite())
|| !Boolean.TRUE.equals(entry.getWebsite().getEnableBloggerApi())
|| !entry.getWebsite().hasUserPermission(
user, WeblogPermission.EDIT_DRAFT)
|| !entry.hasWritePermissions(user)) {
return null;
}
if (additionalAction != null
&& !entry.getWebsite().hasUserPermission(user, additionalAction)) {
return null;
}
return entry;
}

private boolean isWeblogAvailable(Weblog website) {
return website != null
&& Boolean.TRUE.equals(website.getVisible())
&& Boolean.TRUE.equals(website.getActive());
}

//------------------------------------------------------------------------
Expand Down
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