Revision 959
Added by Jing Tao almost 23 years ago
| src/edu/ucsb/nceas/metacat/AccessControlList.java | ||
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| 1088 | 1088 |
}//else groups==null |
| 1089 | 1089 |
return usersPackage; |
| 1090 | 1090 |
}//createUsersPackage |
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/** |
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* According the permission policy, user have the same permission to access |
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* doc to data set doc. (There is no entry in xml_access table for access |
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* itself and we couldn't look-up the table to find permission rule). |
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* |
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* This method will return a data set id for given access id. |
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* @param accessDocId, the accessDocId which need to be found data set id |
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*/ |
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private String getDataSetId(String accessDocId) |
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throws SQLException, Exception |
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{
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String dataSetId=null; |
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PreparedStatement pStmt; |
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ResultSet rs=null; |
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String query="SELECT docId from xml_relation where subject = ? or " |
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+"object = ?"; |
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pStmt=conn.prepareStatement(query); |
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//bind the value to query |
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pStmt.setString(1, accessDocId); |
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pStmt.setString(2, accessDocId); |
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//execute the query |
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pStmt.execute(); |
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rs=pStmt.getResultSet(); |
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//process the result |
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if (rs.next()) //There are some records for the data set id for access id |
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{
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dataSetId=rs.getString(1); |
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} |
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else //No data set id for the given access id in xml_relation table |
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{
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pStmt.close(); |
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throw new Exception(" Couldn't find data set id for the given access "
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+ "document id " +accessDocId); |
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} |
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pStmt.close(); |
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return dataSetId; |
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}//getDataPackageId() |
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/** |
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* Check from db connection if at least one of the list of @principals |
| 1094 | 1135 |
* has @permission on @docid. |
| 1095 | 1136 |
* @param permission permission type to check for |
| ... | ... | |
| 1098 | 1139 |
*/ |
| 1099 | 1140 |
public boolean hasPermission(String permission, String user, |
| 1100 | 1141 |
String[] groups, String docId ) |
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throws SQLException |
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throws SQLException, Exception
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{
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//detele the rev number if docid contains it |
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docId=MetaCatUtil.getDocIdFromString(docId); |
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boolean hasPermission=false; |
| 1106 | 1147 |
String [] userPackage=null; |
| 1107 | 1148 |
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// b' of the command line invocation |
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if ( (user == null) && (groups == null || groups.length == 0) ) {
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return true; |
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} |
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//create a userpackage including user, public and group member |
| 1115 | 1151 |
userPackage=createUsersPackage(user, groups); |
| 1116 | 1152 |
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//if the requested document is access documents the user should |
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//have "all" permission not matter the requested permission |
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//if the requested document is access documents |
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//we will check the permission for document data set |
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//because there is no entries in xml_access table |
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//we will give users the same permission as data set |
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if (isAccessDocument(docId)) |
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{
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// check for all permission on @docid for @userPackage |
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hasPermission = hasPermission(userPackage,docId,"all"); |
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//assign data set id to docId to replace the access docId |
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docId=getDataSetId(docId); |
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//check the permission for the data set id |
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hasPermission = hasPermission(userPackage,docId,permission); |
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}//if |
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else //if it is not access documents, just check the request permission |
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{
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| ... | ... | |
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* @param groups names of user's groups to which user belongs |
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*/ |
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public String getACL(String docid, String user, String[] groups) |
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throws SQLException |
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throws SQLException, Exception
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{
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StringBuffer output = new StringBuffer(); |
| 1279 | 1318 |
StringBuffer outTemp = new StringBuffer(); |
Also available in: Unified diff
Add a new method getDataSetId to the class. The permission policy for access documents is: the user will have the same permission as data set file. (There is no entry in xml_access table for access document.