All new accounts created on Gitlab now require administrator approval. If you invite any collaborators, please let Flux staff know so they can approve the accounts.

approveuser.php3 14.6 KB
Newer Older
1
<?php
Leigh B. Stoller's avatar
Leigh B. Stoller committed
2 3
#
# EMULAB-COPYRIGHT
4
# Copyright (c) 2000-2003, 2005 University of Utah and the Flux Group.
Leigh B. Stoller's avatar
Leigh B. Stoller committed
5 6
# All rights reserved.
#
7 8
include("defs.php3");

9 10 11 12 13
#
# Standard Testbed Header
#
PAGEHEADER("New Users Approved");

14 15 16
#
# Only known and logged in users can be verified.
#
17
$uid = GETLOGIN();
18 19
LOGGEDINORDIE($uid);

20 21 22 23
$projectchecks = array();

ignore_user_abort(1);

24 25 26 27
#
# Walk the list of post variables, looking for the special post format.
# See approveuser_form.php3:
#
Leigh B. Stoller's avatar
Leigh B. Stoller committed
28 29 30
#             uid     menu     project/group
#	name=stoller$$approval-testbed/testbed value=approved,denied,postpone
#	name=stoller$$trust-testbed/testbed value=user,local_root
31 32 33 34 35
#
# We make two passes over the post vars. The first does a sanity check so
# that we can bail out without doing anything. This allows the user to
# back up and make changes without worrying about some stuff being done and
# other stuff not. 
Chad Barb's avatar
 
Chad Barb committed
36 37 38 39 40 41 42 43 44 45
#

#
# copy of HTTP_POST_VARS we use to do actual work.
# this is so I can insert an implicit default-group approval
# while iterating over HTTP_POST_VARS. 
# A bit kludgey, indeed.
#
$POST_VARS_COPY = array();
 
46 47
while (list ($header, $value) = each ($HTTP_POST_VARS)) {
    #echo "$header: $value<br>\n";
Chad Barb's avatar
 
Chad Barb committed
48
    $POST_VARS_COPY[$header] = $value; 
49 50 51 52 53 54 55

    $approval_string = strstr($header, "\$\$approval-");
    if (! $approval_string) {
	continue;
    }

    $user     = substr($header, 0, strpos($header, "\$\$", 0));
Leigh B. Stoller's avatar
Leigh B. Stoller committed
56 57 58
    $projgrp  = substr($approval_string, strlen("\$\$approval-"));
    $project  = substr($projgrp, 0, strpos($projgrp, "/", 0));
    $group    = substr($projgrp, strpos($projgrp, "/", 0) + 1);
59 60 61 62 63 64 65 66
    $approval = $value;

    if (!$user || strcmp($user, "") == 0) {
	TBERROR("Parse error finding user in approveuser.php3", 1);
    }
    if (!$project || strcmp($project, "") == 0) {
	TBERROR("Parse error finding project in approveuser.php3", 1);
    }
Leigh B. Stoller's avatar
Leigh B. Stoller committed
67 68 69
    if (!$group || strcmp($group, "") == 0) {
	TBERROR("Parse error finding group in approveuser.php3", 1);
    }
70 71 72 73 74 75 76 77
    if (!$approval || strcmp($approval, "") == 0) {
	TBERROR("Parse error finding approval in approveuser.php3", 1);
    }

    #
    # There should be a corresponding trust variable in the POST vars.
    # Note that we construct the variable name and indirect to it.
    #
Leigh B. Stoller's avatar
Leigh B. Stoller committed
78
    $foo      = "$user\$\$trust-$project/$group";
79 80 81 82
    $newtrust = $$foo;
    if (!$newtrust || strcmp($newtrust, "") == 0) {
	TBERROR("Parse error finding trust in approveuser.php3", 1);
    }
Leigh B. Stoller's avatar
Leigh B. Stoller committed
83 84 85 86 87 88
    #echo "User $user, Project $project,
    #      Group $group, Approval $approval, Trust $newtrust<br>\n";
    
    if (strcmp($newtrust, "user") &&
	strcmp($newtrust, "local_root") &&
	strcmp($newtrust, "group_root")) {
89 90 91 92
	TBERROR("Invalid trust $newtrust for user $user approveuser.php3.", 1);
    }

    #
93
    # Verify an actual user that is being approved.
94
    #
95 96
    if (! TBCurrentUser($user)) {
	TBERROR("Trying to approve unknown user $user.", 1);
97
    }
98
    
99
    #
100 101
    # Check that the current uid has the necessary trust level
    # to approver users in the project/group. Also, only project leaders
Chad Barb's avatar
 
Chad Barb committed
102
    # can add someone to the default group as group_root.
103
    #
Leigh B. Stoller's avatar
Leigh B. Stoller committed
104 105 106
    if (! TBProjAccessCheck($uid, $project, $group, $TB_PROJECT_ADDUSER)) {
	USERERROR("You are not allowed to approve users in ".
		  "$project/$group!", 1);
107
    }
Chad Barb's avatar
 
Chad Barb committed
108

Chad Barb's avatar
 
Chad Barb committed
109
    if (strcmp($newtrust, "group_root") == 0 &&
Chad Barb's avatar
 
Chad Barb committed
110
	strcmp($group, $project) == 0) {
Chad Barb's avatar
 
Chad Barb committed
111 112 113 114 115
	if (! TBProjAccessCheck($uid, $project, $group, 
                                $TB_PROJECT_BESTOWGROUPROOT)) {
	    USERERROR("You do not have permission to add new users with group ".
		      "root trust to the default group!", 1);
	}
Chad Barb's avatar
 
Chad Barb committed
116
    }
Leigh B. Stoller's avatar
Leigh B. Stoller committed
117
    
118
    #
119 120
    # Check if already approved in the project/group. If already an
    # approved member, something went wrong.
121
    #
Leigh B. Stoller's avatar
Leigh B. Stoller committed
122 123
    TBGroupMember($user, $project, $group, $isapproved);
    if ($isapproved) {
124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193
	USERERROR("$user is already an approved member of ".
		  "$project/$group!", 1);
    }

    #
    # Verify approval value. 
    #
    if (strcmp($approval, "postpone") &&
	strcmp($approval, "deny") &&
	strcmp($approval, "nuke") &&
	strcmp($approval, "approve")) {
	TBERROR("Invalid approval value $approval in approveuser.php3.", 1);
    }

    #
    # If denying project membership, then there must be equivalent denial
    # for all subgroups. We can either do it for the user, or require that the
    # user understand whats happening. I prefer the latter, so look for this
    # and spit back an error. Note that we cannot rely on the post vars for
    # this, but must look in the DB for the group set, and then check to make
    # sure there are post vars for *all* of them.
    #
    if (strcmp($project, $group) == 0 &&
	(strcmp($approval, "deny") == 0 ||
	 strcmp($approval, "nuke") == 0)) {
	$query_result =
	    DBQueryFatal("select gid from group_membership ".
			 "where uid='$user' and pid='$project' and pid!=gid");
	
	while ($row = mysql_fetch_array($query_result)) {
	    $gid = $row[gid];

            #
            # Create and indirect through post var for subgroup approval value.
            #
	    $foo = "$user\$\$approval-$project/$gid";
	    $subgroup_approval = $$foo;

	    if (!$subgroup_approval ||
		(strcmp($subgroup_approval, "deny") &&
		 strcmp($subgroup_approval, "nuke"))) {
		USERERROR("If you wish to deny/nuke user $user in project ".
			  "$project then you must deny/nuke in all of the ".
			  "subgroups $user is attempting to join.", 1);
	    }
	}
    }

    if (strcmp($approval, "approve") == 0)
	$projectchecks[$user][] = array($project, $group, $newtrust);

    #
    # When operating on a user for a subgroup, the user must already be in the
    # default group, or there must be an appropriate default group operation
    # in the POST vars. In other words, we do not allow users to be
    # approved/denied/postponed to a subgroup without a default group
    # operation as well. At present, all users must be in the default group
    # in addition to subgroups.
    #
    if (strcmp($project, $group) == 0)
	continue;

    TBGroupMember($user, $project, $project, $isapproved);
    if ($isapproved)
	continue;

    #
    # Create and indirect through post var for project approval value.
    #
    $foo = "$user\$\$approval-$project/$project";
Chad Barb's avatar
 
Chad Barb committed
194
    $bar = "$user\$\$trust-$project/$project";
195 196 197
    $default_approval = $$foo;
    
    if (!$default_approval || strcmp($default_approval, "") == 0) {
Chad Barb's avatar
 
Chad Barb committed
198 199 200 201 202 203 204
	# Implicit group approval as user.
	# Short circuit all the perms-checking, and squeeze it in
	# all the appropriate places.
	
	# 1. For our benefit
	$$foo = $approval;
	
205
	# 2. For the strcmp below.
Chad Barb's avatar
 
Chad Barb committed
206 207 208 209 210 211 212 213
	$default_approval = $approval;

	# 3. For the sanity check
	$projectchecks[$user][] = array($project, $project, "user");	

	# 4. For the while loop which does the actual work
	$POST_VARS_COPY[ $foo ] = $approval;
	$$bar = "user";
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
    }
    if (strcmp($approval, "approve") == 0 &&
	strcmp($default_approval, "approve")) {
	USERERROR("You cannot approve $user in $project/$group without ".
		  "approval in the default group ($project/$project)!", 1);
    }
}

#
# Sanity check. I hate this stuff.
# 
while (list ($user, $value) = each ($projectchecks)) {
    $projtrust   = array();
    $grouptrust  = array();
    $pidlist     = array();
    
    while (list ($a, $b) = each ($value)) {
	$pid   = $b[0];
	$gid   = $b[1];
	$trust = $b[2];
	$foo   = $projtrust[$pid];
	$bar   = $grouptrust[$pid];

	#echo "$user $pid $gid $trust $foo $bar<br>\n";

	#
	# This looks for different trust levels in different subgroups
	# of the same project. We are only checking the form arguments
	# here; we will do a check against the DB below. 
	# 
	if (strcmp($pid, $gid)) {
	    if (isset($grouptrust[$pid]) &&
		strcmp($grouptrust[$pid], $trust)) {
		USERERROR("User $user may not have different trust levels in ".
			  "different subgroups of $pid!", 1);
	    }
	    $grouptrust[$pid] = $trust;
	}
	else {
	    #
	    # Stash the project default group trust so that we can also
	    # do a consistency check against it.
	    #
	    $projtrust[$pid] = $trust;
	}
	$pidlist[$pid] = $pid;
Chad Barb's avatar
 
Chad Barb committed
260 261 262

	# Check vs. the database
	TBCheckGroupTrustConsistency($user, $pid, $gid, $trust, 1);
263 264 265 266 267 268 269 270 271 272
    }
    
    reset($value);
}

reset($HTTP_POST_VARS);

#
# Okay, all sanity tests passed for all post vars. Now do the actual work.
# 
Chad Barb's avatar
 
Chad Barb committed
273
while (list ($header, $value) = each ($POST_VARS_COPY)) {
274 275 276 277
    #echo "$header: $value<br>\n";

    $approval_string = strstr($header, "\$\$approval-");
    if (! $approval_string) {
Leigh B. Stoller's avatar
Leigh B. Stoller committed
278
	continue;
279 280
    }

281 282 283 284 285 286
    $user     = substr($header, 0, strpos($header, "\$\$", 0));
    $projgrp  = substr($approval_string, strlen("\$\$approval-"));
    $project  = substr($projgrp, 0, strpos($projgrp, "/", 0));
    $group    = substr($projgrp, strpos($projgrp, "/", 0) + 1);
    $approval = $value;

287
    #
288 289 290 291 292 293 294 295 296 297 298 299
    # Corresponding trust value.
    #
    $foo      = "$user\$\$trust-$project/$group";
    $newtrust = $$foo;

    #
    # Get the current status for the user, which we might need to change.
    #
    # We change the status only if this person is joining his first project.
    # In this case, the status will be either "newuser" or "unapproved",
    # and we will change it to "unapproved" or "active", respectively.
    # If the status is "active", we leave it alone. 
300
    #
Leigh B. Stoller's avatar
Leigh B. Stoller committed
301
    $query_result =
302 303
        DBQueryFatal("SELECT status,usr_email,usr_name from users where ".
		     "uid='$user'");
304
    if (mysql_num_rows($query_result) == 0) {
305
	TBERROR("Unknown user $user", 1);
306 307
    }
    $row = mysql_fetch_row($query_result);
308 309 310 311 312 313 314 315 316 317 318
    $curstatus  = $row[0];
    $user_email = $row[1];
    $user_name  = $row[2];
    #echo "Status = $curstatus, Email = $user_email<br>\n";

    #
    # Email info for current user.
    # 
    TBUserInfo($uid, $uid_name, $uid_email);

    #
319
    # Email info for the proj/group leaders too.
320
    #
321
    $leaders = TBLeaderMailList($project,$group);
322
    
323 324 325 326 327
    #
    # Well, looks like everything is okay. Change the project membership
    # value appropriately.
    #
    if (strcmp($approval, "postpone") == 0) {
328 329 330
	echo "<p>
                  Membership status for user $user in $project/$group was
                  <b>postponed</b> for later decision.\n";
331 332 333 334
        continue;
    }
    if (strcmp($approval, "deny") == 0) {
        #
Leigh B. Stoller's avatar
Leigh B. Stoller committed
335 336
        # Must delete the group_membership record since we require that the 
        # user reapply once denied. Send the luser email to let him know.
337
        #
Leigh B. Stoller's avatar
Leigh B. Stoller committed
338 339 340 341 342
        $query_result =
	    DBQueryFatal("delete from group_membership ".
			 "where uid='$user' and pid='$project' and ".
			 "      gid='$group'");

343 344
        TBMAIL("$user_name '$user' <$user_email>",
             "Membership Denied in '$project/$group'",
345 346
	     "\n".
             "This message is to notify you that you have been denied\n".
347
	     "membership in project/group $project/$group.\n".
348 349
             "\n\n".
             "Thanks,\n".
350
             "Testbed Operations\n",
351
             "From: $uid_name <$uid_email>\n".
352
             "Cc:  $leaders\n".
353
             "Bcc: $TBMAIL_AUDIT\n".
354 355
             "Errors-To: $TBMAIL_WWW");

356 357 358 359
	echo "<p>
                User $user was <b>denied</b> membership in $project/$group.
                <br>
                The user will need to reapply again if this was in error.\n";
360 361 362

	continue;
    }
363 364
    if (strcmp($approval, "nuke") == 0) {
        #
Leigh B. Stoller's avatar
Leigh B. Stoller committed
365 366
        # Must delete the group_membership record since we require that the 
        # user reapply once denied. Send the luser email to let him know.
367
        #
Leigh B. Stoller's avatar
Leigh B. Stoller committed
368 369 370 371
        $query_result =
	    DBQueryFatal("delete from group_membership ".
			 "where uid='$user' and pid='$project' and ".
			 "      gid='$group'");
372 373 374

	#
	# See if user is in any other projects (even unapproved).
Leigh B. Stoller's avatar
Leigh B. Stoller committed
375 376 377
	#
        $query_result =
	    DBQueryFatal("select * from group_membership where uid='$user'");
378 379 380 381 382

	#
	# If yes, then we cannot safely delete the user account.
	#
	if (mysql_num_rows($query_result)) {
383 384 385
	    echo "<p>
                  User $user was <b>denied</b> membership in $project/$group.
                  <br>
386
                  Since the user is a member (or requesting membership)
387
		  in other projects, the account cannot be safely removed.\n";
388 389 390 391 392 393 394 395 396 397 398 399
	    
	    continue;
	}

	#
	# No other project membership. If the user is unapproved/newuser, 
	# it means he was never approved in any project, and so will
	# likely not be missed. He will be unapproved if he did his
	# verification.
	#
	if (strcmp($curstatus, "newuser") &&
	    strcmp($curstatus, "unapproved")) {
400 401 402
	    echo "<p>
                  User $user was <b>denied</b> membership in $project/$group.
                  <br>
403 404
                  Since the user has been approved by, or was active in other
		  projects in the past, the account cannot be safely removed.
405
                  \n";
406 407
	    continue;
	}
408
	SUEXEC($uid, $TBADMINGROUP, "webrmuser -n -p $project $user", 1); 
409

410 411 412
	echo "<p>
                User $user was <b>denied</b> membership in $project/$group.
                <br>
413
		The account has also been <b>terminated</b>!\n";
414 415 416

	continue;
    }
417 418 419 420 421 422 423 424 425 426 427 428 429
    if (strcmp($approval, "approve") == 0) {
        #
        # Change the status if necessary. This only happens for new
	# users being added to their first project. After this, the status is
        # going to be "active", and we just leave it that way.
	#
        if (strcmp($curstatus, "active")) {
	    if (strcmp($curstatus, "newuser") == 0) {
		$newstatus = "unverified";
            }
	    elseif (strcmp($curstatus, "unapproved") == 0) {
		$newstatus = "active";
	    }
430 431 432
	    elseif (strcmp($curstatus, "unverified") == 0) {
		$newstatus = "unverified";
	    }
433 434 435 436
	    else {
	        TBERROR("Invalid $user status $curstatus in approveuser.php3",
                         1);
	    }
437 438 439 440 441 442
	    if (!($user_interface = TBGetDefaultProjectUserInterface($project)))
		$user_interface = TBDB_USER_INTERFACE_EMULAB;
	    
	    DBQueryFatal("UPDATE users set ".
			 "       status='$newstatus', ".
			 "       user_interface='$user_interface' ".
443 444 445 446 447 448
			 "WHERE uid='$user'");

            #
            # Create user account on control node.
            #
	    SUEXEC($uid, $TBADMINGROUP, "webtbacct add $user", 1);
449
	}
450 451 452 453 454
        #
	# Only need to add new membership.
	# 
	SUEXEC($uid, $TBADMINGROUP,
	       "webmodgroups -a $project:$group:$newtrust $user", 1);
455

456 457
        TBMAIL("$user_name '$user' <$user_email>",
             "Membership Approved in '$project/$group' ",
458 459
	     "\n".
	     "This message is to notify you that you have been approved\n".
460 461
	     "as a member of project/group $project/$group with\n".
	     "$newtrust permissions.\n".
462 463
             "\n\n".
             "Thanks,\n".
464
             "Testbed Operations\n",
465
             "From: $uid_name <$uid_email>\n".
466
             "Cc:  $leaders\n".
467
             "Bcc: $TBMAIL_AUDIT\n".
468 469
             "Errors-To: $TBMAIL_WWW");

470 471 472 473
	echo "<p>
                  User $user was <b>granted</b> membership in $project/$group
                  with $newtrust permissions.\n";
		
474 475 476 477
	continue;
    }
}

478 479 480 481
#
# Standard Testbed Footer
# 
PAGEFOOTER();
482
?>