(bug 10055) Populate email address and real name properties of User objects passed...
[lhc/web/wiklou.git] / includes / Block.php
index e050474..fa98692 100644 (file)
@@ -1,7 +1,6 @@
 <?php
 /**
  * Blocks and bans object
- * @package MediaWiki
  */
 
 /**
  * Globals used: $wgAutoblockExpiry, $wgAntiLockFlags
  *
  * @todo This could be used everywhere, but it isn't.
- * @package MediaWiki
  */
 class Block
 {
        /* public*/ var $mAddress, $mUser, $mBy, $mReason, $mTimestamp, $mAuto, $mId, $mExpiry,
-                           $mRangeStart, $mRangeEnd, $mAnonOnly, $mEnableAutoblock;
+                               $mRangeStart, $mRangeEnd, $mAnonOnly, $mEnableAutoblock, $mHideName;
        /* private */ var $mNetworkBits, $mIntegerAddr, $mForUpdate, $mFromMaster, $mByName;
        
        const EB_KEEP_EXPIRED = 1;
        const EB_FOR_UPDATE = 2;
        const EB_RANGE_ONLY = 4;
 
-       function Block( $address = '', $user = 0, $by = 0, $reason = '',
-               $timestamp = '' , $auto = 0, $expiry = '', $anonOnly = 0, $createAccount = 0, $enableAutoblock = 0 )
+       function __construct( $address = '', $user = 0, $by = 0, $reason = '',
+               $timestamp = '' , $auto = 0, $expiry = '', $anonOnly = 0, $createAccount = 0, $enableAutoblock = 0, 
+               $hideName = 0 )
        {
                $this->mId = 0;
+               # Expand valid IPv6 addresses
+               $address = IP::sanitizeIP( $address );
                $this->mAddress = $address;
                $this->mUser = $user;
                $this->mBy = $by;
@@ -38,6 +39,7 @@ class Block
                $this->mCreateAccount = $createAccount;
                $this->mExpiry = self::decodeExpiry( $expiry );
                $this->mEnableAutoblock = $enableAutoblock;
+               $this->mHideName = $hideName;
 
                $this->mForUpdate = false;
                $this->mFromMaster = false;
@@ -58,7 +60,7 @@ class Block
 
        static function newFromID( $id ) 
        {
-               $dbr =& wfGetDB( DB_SLAVE );
+               $dbr = wfGetDB( DB_SLAVE );
                $res = $dbr->resultObject( $dbr->select( 'ipblocks', '*', 
                        array( 'ipb_id' => $id ), __METHOD__ ) );
                $block = new Block;
@@ -74,7 +76,7 @@ class Block
                $this->mAddress = $this->mReason = $this->mTimestamp = '';
                $this->mId = $this->mAnonOnly = $this->mCreateAccount = 
                        $this->mEnableAutoblock = $this->mAuto = $this->mUser = 
-                       $this->mBy = 0;
+                       $this->mBy = $this->mHideName = 0;
                $this->mByName = false;
        }
 
@@ -85,14 +87,14 @@ class Block
        {
                global $wgAntiLockFlags;
                if ( $this->mForUpdate || $this->mFromMaster ) {
-                       $db =& wfGetDB( DB_MASTER );
+                       $db = wfGetDB( DB_MASTER );
                        if ( !$this->mForUpdate || ($wgAntiLockFlags & ALF_NO_BLOCK_LOCK) ) {
                                $options = array();
                        } else {
                                $options = array( 'FOR UPDATE' );
                        }
                } else {
-                       $db =& wfGetDB( DB_SLAVE );
+                       $db = wfGetDB( DB_SLAVE );
                        $options = array();
                }
                return $db;
@@ -113,9 +115,6 @@ class Block
                $options = array();
                $db =& $this->getDBOptions( $options );
 
-               $ret = false;
-               $killed = false;
-
                if ( 0 == $user && $address == '' ) {
                        # Invalid user specification, not blocked
                        $this->clear();
@@ -150,7 +149,7 @@ class Block
                }
 
                # Try range block
-               if ( $this->loadRange( $address, $killExpired, $user == 0 ) ) {
+               if ( $this->loadRange( $address, $killExpired, $user ) ) {
                        if ( $user && $this->mAnonOnly ) {
                                $this->clear();
                                return false;
@@ -179,7 +178,8 @@ class Block
        /**
         * Fill in member variables from a result wrapper
         */
-       function loadFromResult( ResultWrapper $res, $killExpired = true ) {
+       function loadFromResult( ResultWrapper $res, $killExpired = true ) 
+       {
                $ret = false;
                if ( 0 != $res->numRows() ) {
                        # Get first block
@@ -214,7 +214,7 @@ class Block
         * Search the database for any range blocks matching the given address, and
         * load the row if one is found.
         */
-       function loadRange( $address, $killExpired = true )
+       function loadRange( $address, $killExpired = true, $user = 0 )
        {
                $iaddr = IP::toHex( $address );
                if ( $iaddr === false ) {
@@ -233,6 +233,10 @@ class Block
                        "ipb_range_start <= '$iaddr'",
                        "ipb_range_end >= '$iaddr'"
                );
+               
+               if ( $user ) {
+                       $conds['ipb_anon_only'] = 0;
+               }
 
                $res = $db->resultObject( $db->select( 'ipblocks', '*', $conds, __METHOD__, $options ) );
                $success = $this->loadFromResult( $res, $killExpired );
@@ -241,10 +245,10 @@ class Block
 
        /**
         * Determine if a given integer IPv4 address is in a given CIDR network
-        * @deprecated Use IP::isAddressInRange
+        * @deprecated Use IP::isInRange
         */
        function isAddressInRange( $addr, $range ) {
-               return IP::isAddressInRange( $addr, $range );
+               return IP::isInRange( $addr, $range );
        }
 
        function initFromRow( $row )
@@ -258,6 +262,7 @@ class Block
                $this->mAnonOnly = $row->ipb_anon_only;
                $this->mCreateAccount = $row->ipb_create_account;
                $this->mEnableAutoblock = $row->ipb_enable_autoblock;
+               $this->mHideName = $row->ipb_deleted;
                $this->mId = $row->ipb_id;
                $this->mExpiry = self::decodeExpiry( $row->ipb_expiry );
                if ( isset( $row->user_name ) ) {
@@ -275,7 +280,7 @@ class Block
                $this->mRangeEnd = '';
 
                if ( $this->mUser == 0 ) {
-                       list($this->mRangeStart, $this->mRangeEnd) = IP::parseRange$this->mAddress);
+                       list( $this->mRangeStart, $this->mRangeEnd ) = IP::parseRange( $this->mAddress );
                }
        }
 
@@ -289,7 +294,7 @@ class Block
 
                $block = new Block();
                if ( $flags & Block::EB_FOR_UPDATE ) {
-                       $db =& wfGetDB( DB_MASTER );
+                       $db = wfGetDB( DB_MASTER );
                        if ( $wgAntiLockFlags & ALF_NO_BLOCK_LOCK ) {
                                $options = '';
                        } else {
@@ -297,7 +302,7 @@ class Block
                        }
                        $block->forUpdate( true );
                } else {
-                       $db =& wfGetDB( DB_SLAVE );
+                       $db = wfGetDB( DB_SLAVE );
                        $options = '';
                }
                if ( $flags & Block::EB_RANGE_ONLY ) {
@@ -308,7 +313,7 @@ class Block
 
                $now = wfTimestampNow();
 
-               extract( $db->tableNames( 'ipblocks', 'user' ) );
+               list( $ipblocks, $user ) = $db->tableNamesN( 'ipblocks', 'user' );
 
                $sql = "SELECT $ipblocks.*,user_name FROM $ipblocks,$user " .
                        "WHERE user_id=ipb_by $cond ORDER BY ipb_timestamp DESC $options";
@@ -344,7 +349,7 @@ class Block
                        throw new MWException( "Block::delete() now requires that the mId member be filled\n" );
                }
 
-               $dbw =& wfGetDB( DB_MASTER );
+               $dbw = wfGetDB( DB_MASTER );
                $dbw->delete( 'ipblocks', array( 'ipb_id' => $this->mId ), __METHOD__ );
                return $dbw->affectedRows() > 0;
        }
@@ -356,8 +361,7 @@ class Block
        function insert()
        {
                wfDebug( "Block::insert; timestamp {$this->mTimestamp}\n" );
-               $dbw =& wfGetDB( DB_MASTER );
-               $dbw->begin();
+               $dbw = wfGetDB( DB_MASTER );
 
                # Unset ipb_anon_only for user blocks, makes no sense
                if ( $this->mUser ) {
@@ -388,6 +392,7 @@ class Block
                                'ipb_expiry' => self::encodeExpiry( $this->mExpiry, $dbw ),
                                'ipb_range_start' => $this->mRangeStart,
                                'ipb_range_end' => $this->mRangeEnd,
+                               'ipb_deleted'   => $this->mHideName
                        ), 'Block::insert', array( 'IGNORE' )
                );
                $affected = $dbw->affectedRows();
@@ -405,7 +410,7 @@ class Block
        *@return Whether or not a retroactive autoblock was made.
        */
        function doRetroactiveAutoblock() {
-               $dbr = wfGetDb( DB_SLAVE );
+               $dbr = wfGetDB( DB_SLAVE );
                #If autoblock is enabled, autoblock the LAST IP used
                # - stolen shamelessly from CheckUser_body.php
 
@@ -413,7 +418,7 @@ class Block
                        wfDebug("Doing retroactive autoblocks for " . $this->mAddress . "\n");
 
                        $row = $dbr->selectRow( 'recentchanges', array( 'rc_ip' ), array( 'rc_user_text' => $this->mAddress ),
-                               $fname, array( 'ORDER BY' => 'rc_timestamp DESC' ) );
+                               __METHOD__ , array( 'ORDER BY' => 'rc_timestamp DESC' ) );
 
                        if ( !$row || !$row->rc_ip ) {
                                #No results, don't autoblock anything
@@ -421,24 +426,51 @@ class Block
                        } else {
                                #Limit is 1, so no loop needed.
                                $retroblockip = $row->rc_ip;
-                               return $this->doAutoblock($retroblockip);
+                               return $this->doAutoblock( $retroblockip, true );
                        }
                }
        }
 
        /**
        * Autoblocks the given IP, referring to this Block.
-       * @param string $autoblockip The IP to autoblock, dotted-quad.
-       * @return bool True if an autoblock was inserted OR redundant to preexisting block.
+       * @param string $autoblockip The IP to autoblock.
+       * @param bool $justInserted The main block was just inserted
+       * @return bool Whether or not an autoblock was inserted.
        */
-       public function doAutoblock( $autoblockip ) {
-               # Check if this IP address is already blocked
-               $dbw =& wfGetDb( DB_MASTER );
-               $dbw->begin();
+       function doAutoblock( $autoblockip, $justInserted = false ) {
+               # If autoblocks are disabled, go away.
+               if ( !$this->mEnableAutoblock ) {
+                       return;
+               }
 
-               # If autoblocks are disabled, or if this IP is whitelisted, go away.
-               if ( !$this->mEnableAutoblock || self::isWhitelistedIp( $autoblockip ) ) {
-                       return false;
+               # Check for presence on the autoblock whitelist
+               # TODO cache this?
+               $lines = explode( "\n", wfMsgForContentNoTrans( 'autoblock_whitelist' ) );
+
+               $ip = $autoblockip;
+
+               wfDebug("Checking the autoblock whitelist..\n");
+
+               foreach( $lines as $line ) {
+                       # List items only
+                       if ( substr( $line, 0, 1 ) !== '*' ) {
+                               continue;
+                       }
+
+                       $wlEntry = substr($line, 1);
+                       $wlEntry = trim($wlEntry);
+
+                       wfDebug("Checking $ip against $wlEntry...");
+
+                       # Is the IP in this range?
+                       if (IP::isInRange( $ip, $wlEntry )) {
+                               wfDebug(" IP $ip matches $wlEntry, not autoblocking\n");
+                               #$autoblockip = null; # Don't autoblock a whitelisted IP.
+                               return; #This /SHOULD/ introduce a dummy block - but
+                                       # I don't know a safe way to do so. -werdna
+                       } else {
+                               wfDebug( " No match\n" );
+                       }
                }
 
                # It's okay to autoblock. Go ahead and create/insert the block.
@@ -450,11 +482,13 @@ class Block
                        # prolong block time
                        if ($this->mExpiry &&
                        ($this->mExpiry < Block::getAutoblockExpiry($ipblock->mTimestamp))) {
-                               return true;
+                               return;
                        }
                        # Just update the timestamp
-                       $ipblock->updateTimestamp();
-                       return true;
+                       if ( !$justInserted ) {
+                               $ipblock->updateTimestamp();
+                       }
+                       return;
                } else {
                        $ipblock = new Block;
                }
@@ -468,6 +502,8 @@ class Block
                $ipblock->mTimestamp = wfTimestampNow();
                $ipblock->mAuto = 1;
                $ipblock->mCreateAccount = $this->mCreateAccount;
+               # Continue suppressing the name if needed
+               $ipblock->mHideName = $this->mHideName;
 
                # If the user is already blocked with an expiry date, we don't
                # want to pile on top of that!
@@ -480,38 +516,6 @@ class Block
                return $ipblock->insert();
        }
 
-       /**
-        * Checks whether an IP is whitelisted in the autoblock_whitelist message.
-        * @todo Cache this?
-        *
-        * @param string $ip Dotted quad
-        * @return bool
-        */
-       private static function isWhitelistedIp( $ip ) {
-               $lines = explode( "\n", wfMsgForContentNoTrans( 'autoblock_whitelist' ) );
-
-               wfDebug("Checking the autoblock whitelist..\n");
-
-               foreach( $lines as $line ) {
-                       # Parse list items only
-                       if ( substr( $line, 0, 1 ) !== '*' ) {
-                               continue;
-                       }
-
-                       $wlEntry = substr($line, 1);
-                       $wlEntry = trim($wlEntry);
-
-                       wfDebug("Checking $wlEntry\n");
-
-                       # Is the IP in this range?
-                       if (IP::isAddressInRange( $autoblockip, $wlEntry )) {
-                               wfDebug("IP $autoblockip matches $wlEntry, not autoblocking\n");
-                               return true; #This /SHOULD/ introduce a dummy block - but
-                                       # I don't know a safe way to do so. -werdna
-                       }
-               }
-               return false;
-       }
        function deleteIfExpired()
        {
                $fname = 'Block::deleteIfExpired';
@@ -549,7 +553,7 @@ class Block
                        $this->mTimestamp = wfTimestamp();
                        $this->mExpiry = Block::getAutoblockExpiry( $this->mTimestamp );
 
-                       $dbw =& wfGetDB( DB_MASTER );
+                       $dbw = wfGetDB( DB_MASTER );
                        $dbw->update( 'ipblocks',
                                array( /* SET */
                                        'ipb_timestamp' => $dbw->timestamp($this->mTimestamp),
@@ -633,16 +637,36 @@ class Block
                global $wgAutoblockExpiry;
                return wfTimestamp( TS_MW, wfTimestamp( TS_UNIX, $timestamp ) + $wgAutoblockExpiry );
        }
-
-       static function normaliseRange( $range )
-       {
+       
+       /** 
+        * Gets rid of uneeded numbers in quad-dotted/octet IP strings
+        * For example, 127.111.113.151/24 -> 127.111.113.0/24
+        */
+       static function normaliseRange( $range ) {
                $parts = explode( '/', $range );
                if ( count( $parts ) == 2 ) {
-                       $shift = 32 - $parts[1];
-                       $ipint = IP::toUnsigned( $parts[0] );
-                       $ipint = $ipint >> $shift << $shift;
-                       $newip = long2ip( $ipint );
-                       $range = "$newip/{$parts[1]}";
+                       // IPv6
+                       if ( IP::isIPv6($range) && $parts[1] >= 64 && $parts[1] <= 128 ) {
+                               $bits = $parts[1];
+                               $ipint = IP::toUnsigned6( $parts[0] );
+                               # Native 32 bit functions WONT work here!!!
+                               # Convert to a padded binary number
+                               $network = wfBaseConvert( $ipint, 10, 2, 128 );
+                               # Truncate the last (128-$bits) bits and replace them with zeros
+                               $network = str_pad( substr( $network, 0, $bits ), 128, 0, STR_PAD_RIGHT );
+                               # Convert back to an integer
+                               $network = wfBaseConvert( $network, 2, 10 );
+                               # Reform octet address
+                               $newip = IP::toOctet( $network );
+                               $range = "$newip/{$parts[1]}";
+                       } // IPv4
+                       else if ( IP::isIPv4($range) && $parts[1] >= 16 && $parts[1] <= 32 ) {
+                               $shift = 32 - $parts[1];
+                               $ipint = IP::toUnsigned( $parts[0] );
+                               $ipint = $ipint >> $shift << $shift;
+                               $newip = long2ip( $ipint );
+                               $range = "$newip/{$parts[1]}";
+                       }
                }
                return $range;
        }
@@ -651,7 +675,7 @@ class Block
         * Purge expired blocks from the ipblocks table
         */
        static function purgeExpired() {
-               $dbw =& wfGetDB( DB_MASTER );
+               $dbw = wfGetDB( DB_MASTER );
                $dbw->delete( 'ipblocks', array( 'ipb_expiry < ' . $dbw->addQuotes( $dbw->timestamp() ) ), __METHOD__ );
        }
 
@@ -663,7 +687,7 @@ class Block
                /*
                static $infinity;
                if ( !isset( $infinity ) ) {
-                       $dbr =& wfGetDB( DB_SLAVE );
+                       $dbr = wfGetDB( DB_SLAVE );
                        $infinity = $dbr->bigTimestamp();
                }
                return $infinity;