Newer
Older
import it.inaf.ia2.gms.authn.RapPrincipal;
import it.inaf.ia2.gms.exception.BadRequestException;
import it.inaf.ia2.gms.exception.UnauthorizedException;
import it.inaf.ia2.gms.model.Permission;
import it.inaf.ia2.gms.persistence.GroupsDAO;
import it.inaf.ia2.gms.persistence.LoggingDAO;
import it.inaf.ia2.gms.persistence.MembershipsDAO;
import it.inaf.ia2.gms.persistence.PermissionsDAO;
import it.inaf.ia2.gms.persistence.model.GroupEntity;
import it.inaf.ia2.gms.persistence.model.PermissionEntity;
import it.inaf.ia2.gms.service.GroupsService;
import it.inaf.ia2.gms.service.MembersService;
import it.inaf.ia2.gms.service.PermissionUtils;
import it.inaf.ia2.gms.service.PermissionsService;
import java.io.IOException;
import java.io.PrintWriter;
import java.security.Principal;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
/**
* Web service called by other web applications using JWT (delegation).
*/
@RestController
@RequestMapping("/ws/jwt")
public class JWTWebServiceController {
@Autowired
private MembershipsDAO membershipsDAO;
@Autowired
private JoinService joinService;
@Autowired
private GroupsDAO groupsDAO;
@Autowired
private GroupsService groupsService;
@Autowired
private MembersService membersService;
@Autowired
private PermissionsService permissionsService;
@Autowired
private PermissionsDAO permissionsDAO;
@Autowired
private LoggingDAO loggingDAO;
/**
* This endpoint is compliant with the IVOA GMS standard.
*/
@GetMapping(value = "/search", produces = MediaType.TEXT_PLAIN_VALUE)
public void getGroups(Principal principal, HttpServletResponse response) throws IOException {
List<GroupEntity> memberships = membershipsDAO.getUserMemberships(principal.getName());
List<String> names = getGroupsNames(memberships);
try (PrintWriter pw = new PrintWriter(response.getOutputStream())) {
for (String name : names) {
pw.println(name);
/**
* This endpoint is compliant with the IVOA GMS standard. Warning: for
* supporting the groups of groups (with dots inside) the path variable must
* be defined adding ".+", otherwise Spring will think it is a file
* extension (thanks https://stackoverflow.com/a/16333149/771431)
*/
@GetMapping(value = "/search/{group:.+}", produces = MediaType.TEXT_PLAIN_VALUE)
public void isMemberOf(@PathVariable("group") String group, Principal principal, HttpServletResponse response) throws IOException {
String userId = principal.getName();
List<String> groupNames = extractGroupNames(group);
boolean isMember = membershipsDAO.isMemberOf(userId, "ROOT");
if (!isMember) {
String parentPath = ""; // starting from ROOT
for (String groupName : groupNames) {
Optional<GroupEntity> optionalGroup = groupsDAO.findGroupByParentAndName(parentPath, groupName);
if (optionalGroup.isPresent()) {
GroupEntity groupEntity = optionalGroup.get();
parentPath = groupEntity.getPath();
isMember = membershipsDAO.isMemberOf(userId, groupEntity.getId());
if (isMember) {
break;
}
} else {
break;
}
}
}
try (PrintWriter pw = new PrintWriter(response.getOutputStream())) {
pw.println(group);
}
}
// else: empty response (as defined by GMS standard)
}
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
@GetMapping(value = {"/list/{group:.+}", "/list"}, produces = MediaType.TEXT_PLAIN_VALUE)
public void listGroups(@PathVariable("group") Optional<String> group, Principal principal, HttpServletResponse response) throws IOException {
String userId = principal.getName();
List<String> groupNames = extractGroupNames(group);
GroupEntity parentGroup = getGroupFromNames(groupNames);
List<GroupEntity> allSubGroups = groupsDAO.getDirectSubGroups(parentGroup.getPath());
// Select only the groups visible to the user
List<PermissionEntity> permissions = permissionsDAO.findUserPermissions(userId);
List<GroupEntity> visibleSubgroups = new ArrayList<>();
for (GroupEntity subgroup : allSubGroups) {
PermissionUtils.getGroupPermission(subgroup, permissions).ifPresent(permission -> {
visibleSubgroups.add(subgroup);
});
}
try (PrintWriter pw = new PrintWriter(response.getOutputStream())) {
for (String groupName : getGroupsNames(visibleSubgroups)) {
if (group.isPresent()) {
String shortName = groupName.substring(group.get().length() + 1);
pw.println(shortName);
} else {
pw.println(groupName);
}
}
}
}
@PostMapping(value = "/{group:.+}", produces = MediaType.TEXT_PLAIN_VALUE)
public void createGroup(@PathVariable("group") String group, Principal principal, HttpServletRequest request, HttpServletResponse response) throws IOException {
String userId = principal.getName();
List<String> groupNames = extractGroupNames(group);
GroupEntity parent = getParentFromNames(groupNames);
String newGroupName = groupNames.get(groupNames.size() - 1);
if (permissionsService.getUserPermissionForGroup(parent, userId) != Permission.ADMIN) {
loggingDAO.logAction("Unauthorized create group request, group_name=" + newGroupName);
throw new UnauthorizedException("Missing admin permission");
}
String leafParam = request.getParameter("leaf");
boolean leaf = leafParam == null ? false : Boolean.valueOf(leafParam);
groupsService.addGroup(parent, newGroupName, leaf);
loggingDAO.logAction("Added group: parent_path=" + parent.getPath() + ", group_name=" + newGroupName);
response.setStatus(HttpServletResponse.SC_CREATED);
try (PrintWriter pw = new PrintWriter(response.getOutputStream())) {
pw.println(group);
}
}
@PostMapping(value = {"/membership/{group:.+}", "/membership"}, produces = MediaType.TEXT_PLAIN_VALUE)
public void addMember(@PathVariable("group") Optional<String> group, Principal principal, HttpServletRequest request, HttpServletResponse response) throws IOException {
GroupEntity groupEntity = getGroupFromNames(extractGroupNames(group));
String userId = principal.getName();
membersService.verifyUserCanManageMembers(groupEntity, userId);
String targetUserId = request.getParameter("user_id");
if (targetUserId == null) {
response.sendError(HttpServletResponse.SC_BAD_REQUEST, "Missing user_id parameter");
return;
}
membersService.addMember(groupEntity.getId(), targetUserId);
loggingDAO.logAction("Added member, group_id=" + groupEntity.getId() + ", user_id=" + targetUserId);
}
@PostMapping(value = {"/permission/{group:.+}", "/permission/"}, produces = MediaType.TEXT_PLAIN_VALUE)
public void addPermission(@PathVariable("group") Optional<String> groupNames, Principal principal, HttpServletRequest request, HttpServletResponse response) throws IOException {
GroupEntity groupEntity = getGroupFromNames(extractGroupNames(groupNames));
String userId = principal.getName();
permissionsService.verifyUserCanManagePermissions(groupEntity, userId);
String targetUserId = request.getParameter("user_id");
if (targetUserId == null) {
response.sendError(HttpServletResponse.SC_BAD_REQUEST, "Missing user_id parameter");
return;
}
String permissionParam = request.getParameter("permission");
if (permissionParam == null) {
response.sendError(HttpServletResponse.SC_BAD_REQUEST, "Missing permission parameter");
return;
}
Permission permission = Permission.valueOf(permissionParam);
permissionsService.addPermission(groupEntity, targetUserId, permission);
loggingDAO.logAction("Permission added, group_id=" + groupEntity.getId() + ", user_id="
+ targetUserId + ", permission=" + permission);
}
private GroupEntity getGroupFromNames(List<String> groupNames) {
if (groupNames.isEmpty()) {
return getRoot();
}
return getGroupFromNamesAndIndex(groupNames, groupNames.size() - 1);
}
private GroupEntity getParentFromNames(List<String> groupNames) {
if (groupNames.size() == 1) {
return getRoot();
}
return getGroupFromNamesAndIndex(groupNames, groupNames.size() - 2);
}
private GroupEntity getGroupFromNamesAndIndex(List<String> groupNames, int index) {
String parentPath = ""; // starting from ROOT
GroupEntity group = null;
for (int i = 0; i < index + 1; i++) {
String groupName = groupNames.get(i);
group = groupsDAO.findGroupByParentAndName(parentPath, groupName)
.orElseThrow(() -> new IllegalArgumentException("Unable to find group " + groupName));
parentPath = group.getPath();
}
if (group == null) {
throw new IllegalStateException();
}
return group;
}
private GroupEntity getRoot() {
return groupsDAO.findGroupById("ROOT")
.orElseThrow(() -> new IllegalStateException("Missing root group"));
}
/**
* Returns the list of the group complete names, given a list of GroupEntity
* objects.
*/
private List<String> getGroupsNames(List<GroupEntity> groups) {
// We need to return the complete group name, so it is necessary to load
// all the parents too.
Map<String, String> idNameMap = new HashMap<>();
Set<String> allIdentifiers = getAllIdentifiers(groups);
for (GroupEntity group : groupsDAO.findGroupsByIds(allIdentifiers)) {
idNameMap.put(group.getId(), group.getName());
}
List<String> names = new ArrayList<>();
for (GroupEntity group : groups) {
names.add(getGroupCompleteName(group, idNameMap));
}
return names;
}
private List<String> extractGroupNames(Optional<String> group) {
return extractGroupNames(group.orElse(null));
}
private List<String> extractGroupNames(String groupStr) {
if (groupStr == null || groupStr.isEmpty()) {
return new ArrayList<>();
}
List<String> names = new ArrayList<>();
String currentName = "";
for (int i = 0; i < groupStr.length(); i++) {
char c = groupStr.charAt(i);
// dot is the group separator and it must be escaped if used inside
// group names
if (c == '.' && groupStr.charAt(i - 1) != '\\') {
names.add(currentName.replace("\\.", "."));
currentName = "";
} else {
currentName += c;
}
}
names.add(currentName);
return names;
}
private Set<String> getAllIdentifiers(List<GroupEntity> groups) {
Set<String> allIdentifiers = new HashSet<>();
for (GroupEntity group : groups) {
if (!"".equals(group.getPath())) {
String[] ids = group.getPath().split("\\.");
for (String id : ids) {
allIdentifiers.add(id);
}
}
}
return allIdentifiers;
}
private String getGroupCompleteName(GroupEntity group, Map<String, String> idNameMap) {
if ("ROOT".equals(group.getId())) {
return group.getName();
}
List<String> names = new ArrayList<>();
for (String groupId : group.getPath().split("\\.")) {
String groupName = idNameMap.get(groupId);
// Dot inside names is considered a special character (because it is
// used to separate the group from its parents), so we use a
// backslash to escape it (client apps need to be aware of this).
groupName = groupName.replace("\\.", "\\\\.");
names.add(groupName);
}
return String.join(".", names);
}
@PostMapping(value = "/join", produces = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<?> join(RapPrincipal principal) {
String fromUser = principal.getName();
String toUser = principal.getAlternativeName();
if (toUser == null) {
throw new BadRequestException("Missing alternative subject");
}
joinService.join(fromUser, toUser);
Map<String, String> responseBody = new HashMap<>();
responseBody.put("mergedId", fromUser);
return ResponseEntity.ok(responseBody);
}