From: pk910 <philipp@zoelle1.de>
Date: Tue, 26 Jul 2011 08:17:34 +0000 (+0200)
Subject: mode handler
X-Git-Url: http://git.pk910.de/?p=PHP-P10.git;a=commitdiff_plain;h=3a0a29c5f349896d62e1cb4959bf52037d940c84

mode handler
---

diff --git a/Uplink/P10_ModeSets.class.php b/Uplink/P10_ModeSets.class.php
index 52eed7d..7f58c7d 100644
--- a/Uplink/P10_ModeSets.class.php
+++ b/Uplink/P10_ModeSets.class.php
@@ -27,17 +27,285 @@
  */
 
 class P10_ChannelModeSet {
-
+	const MODE_TYPE_A = 1, MODE_TYPE_B = 2, MODE_TYPE_C = 3, MODE_TYPE_D = 4;
+	/** http://www.irc.org/tech_docs/draft-brocklesby-irc-isupport-03.txt
+	 * Section 3.3 CHANMODES
+	 *
+	 * Type A: Modes that add or remove an address to or from a list.
+	 *   These modes always take a parameter when sent by the server to a
+	 *   client; when sent by a client, they may be specified without a
+	 *   parameter, which requests the server to display the current
+	 *   contents of the corresponding list on the channel to the client.
+	 *
+	 * Type B: Modes that change a setting on the channel.  These modes
+	 *   always take a parameter.
+	 *
+	 * Type C: Modes that change a setting on the channel. These modes
+	 *   take a parameter only when set; the parameter is absent when the
+	 *   mode is removed both in the client's and server's MODE command.
+	 *
+	 * Type D: Modes that change a setting on the channel. These modes
+	 *   never take a parameter.
+	 **/
+	private static $modes = array(
+		"b" => self::MODE_TYPE_A,
+		"k" => self::MODE_TYPE_B,
+		"a" => self::MODE_TYPE_C,
+		"l" => self::MODE_TYPE_C,
+		"f" => self::MODE_TYPE_C,
+		"F" => self::MODE_TYPE_C,
+		"c" => self::MODE_TYPE_D,
+		"C" => self::MODE_TYPE_D,
+		"i" => self::MODE_TYPE_D,
+		"m" => self::MODE_TYPE_D,
+		"M" => self::MODE_TYPE_D,
+		"n" => self::MODE_TYPE_D,
+		"N" => self::MODE_TYPE_D,
+		"p" => self::MODE_TYPE_D,
+		"r" => self::MODE_TYPE_D,
+		"s" => self::MODE_TYPE_D,
+		"t" => self::MODE_TYPE_D,
+		"u" => self::MODE_TYPE_D,
+		"D" => self::MODE_TYPE_D,
+		"d" => self::MODE_TYPE_D,
+		"R" => self::MODE_TYPE_D,
+		"z" => self::MODE_TYPE_D
+	);
+	private static $modevalues = null;
+	private $modeflags = 0;
+	private $modeparams = array();
+	
+	public __construct($modes) {
+		if(self::$modevalues == null) {
+			//build modevalues array
+			$flag = 1;
+			self::$modevalues = array();
+			foreach(self::$modes as $mode => $type) {
+				self::$modevalues[$mode] = $flag;
+				$flag <<= 1;
+			}
+		}
+		$this->parseModes($modes);
+	}
+	
+	public parseModes($modes) {
+		$args = explode(" ",$modes);
+		$c = 1;
+		for($i = 0; $i < strlen($args[0]); $i++) {
+			$mode = $args[0][$i];
+			if($mode == "+") continue;
+			if($mode == "-") { //we have no - flag on parseModes???
+				trigger_error("unexpected MODE_DEL (-) on parseModes (".$modes.").", E_USER_WARNING);
+				break;
+			}
+			if(!array_key_exists($mode, self::$modevalues)) {
+				trigger_error("unknown mode (".$mode.") on parseModes (".$modes.").", E_USER_WARNING);
+				continue;
+			}
+			$flag = self::$modevalues[$mode];
+			if(self::$modevalues[$mode] == self::MODE_TYPE_A) continue; //we shouldn't get such a mode on parseModes
+			$this->modeflags |= $flag;
+			if(self::$modevalues[$mode] == self::MODE_TYPE_B || self::$modevalues[$mode] == self::MODE_TYPE_C) {
+				$this->modeparams[$mode] = $args[$c++];
+			}
+		}
+	}
+	
+	public setModes($modes, $returndiff = false) {
+		$args = explode(" ",$modes);
+		$c = 1;
+		$add = true;
+		$modestradd = "+";
+		$paramstradd = "";
+		$modestrdel = "-";
+		$paramstrdel = "";
+		for($i = 0; $i < strlen($args[0]); $i++) {
+			$mode = $args[0][$i];
+			if($mode == "+") {
+				$add = true;
+				continue;
+			}
+			if($mode == "-") { 
+				$add = false;
+				continue;
+			}
+			if(!array_key_exists($mode, self::$modevalues)) {
+				trigger_error("unknown mode (".$mode.") on setModes (".$modes.").", E_USER_WARNING);
+				continue;
+			}
+			$flag = self::$modevalues[$mode];
+			if($add) {
+				if($returndiff && !($this->modeflags & $flag)) {
+					$modestradd .= $mode;
+					if(self::$modevalues[$mode] == self::MODE_TYPE_B || self::$modevalues[$mode] == self::MODE_TYPE_C) {
+						$paramstradd .= " ".$args[$c];
+					}
+				}
+				$this->modeflags |= $flag;
+				if(self::$modevalues[$mode] == self::MODE_TYPE_B || self::$modevalues[$mode] == self::MODE_TYPE_C) {
+					$this->modeparams[$mode] = $args[$c++];
+				}
+			} else {
+				if($returndiff && ($this->modeflags & $flag)) {
+					$modestrdel .= $mode;
+					if(self::$modevalues[$mode] == self::MODE_TYPE_C) {
+						$paramstrdel .= " ".$args[$c];
+					}
+				}
+				$this->modeflags &= ~$flag;
+				if(self::$modevalues[$mode] == self::MODE_TYPE_B || self::$modevalues[$mode] == self::MODE_TYPE_C) {
+					unset($this->modeparams[$mode]);
+				}
+				if(self::$modevalues[$mode] == self::MODE_TYPE_C) $c++;
+			}
+		}
+		if($returndiff) {
+			$modediff = ($modestradd == "+" ? "" : $modestradd);
+			$modediff .= ($modestrdel == "-" ? "" : $modestrdel);
+			$modediff .= $paramstradd.$paramstrdel;
+			return $modediff;
+		}
+	}
+	
+	public getModeString() {
+		$modestr = "+";
+		$paramstr = "";
+		foreach(self::$modevalues as $mode => $flag) {
+			if(($this->modeflags & $flag)) {
+				$modestr .= $mode;
+				if(self::$modevalues[$mode] == self::MODE_WITH_PARAMETER) {
+					$paramstr .= " ".$this->modeparams[$mode];
+				}
+			}
+		}
+		return $modestr.$paramstr;
+	}
+	
 }
 
 class P10_UserModeSet {
+	const MODE_WITHOUT_PARAMETER = 1, MODE_WITH_PARAMETER = 2;
+	private static $modes = array(
+		"o" => self::MODE_WITHOUT_PARAMETER,
+		"O" => self::MODE_WITHOUT_PARAMETER,
+		"i" => self::MODE_WITHOUT_PARAMETER,
+		"w" => self::MODE_WITHOUT_PARAMETER,
+		"s" => self::MODE_WITHOUT_PARAMETER,
+		"d" => self::MODE_WITHOUT_PARAMETER,
+		"k" => self::MODE_WITHOUT_PARAMETER,
+		"g" => self::MODE_WITH_PARAMETER,
+		"r" => self::MODE_WITH_PARAMETER,
+		"f" => self::MODE_WITH_PARAMETER,
+		"n" => self::MODE_WITHOUT_PARAMETER,
+		"I" => self::MODE_WITHOUT_PARAMETER,
+		"X" => self::MODE_WITHOUT_PARAMETER,
+		"S" => self::MODE_WITHOUT_PARAMETER,
+		"H" => self::MODE_WITHOUT_PARAMETER,
+		"c" => self::MODE_WITHOUT_PARAMETER,
+		"W" => self::MODE_WITHOUT_PARAMETER,
+		"t" => self::MODE_WITHOUT_PARAMETER,
+		"D" => self::MODE_WITHOUT_PARAMETER,
+		"x" => self::MODE_WITHOUT_PARAMETER
+	);
+	private static $modevalues = null;
+	private $modeflags = 0;
+	private $modeparams = array();
 	
 	public __construct($modes) {
+		if(self::$modevalues == null) {
+			//build modevalues array
+			$flag = 1;
+			self::$modevalues = array();
+			foreach(self::$modes as $mode => $type) {
+				self::$modevalues[$mode] = $flag;
+				$flag <<= 1;
+			}
+		}
+		$this->parseModes($modes);
+	}
 	
+	public parseModes($modes) {
+		$args = explode(" ",$modes);
+		$c = 1;
+		for($i = 0; $i < strlen($args[0]); $i++) {
+			$mode = $args[0][$i];
+			if($mode == "+") continue;
+			if($mode == "-") { //we have no - flag on parseModes???
+				trigger_error("unexpected MODE_DEL (-) on parseModes (".$modes.").", E_USER_WARNING);
+				break;
+			}
+			if(!array_key_exists($mode, self::$modevalues)) {
+				trigger_error("unknown mode (".$mode.") on parseModes (".$modes.").", E_USER_WARNING);
+				continue;
+			}
+			$flag = self::$modevalues[$mode];
+			$this->modeflags |= $flag;
+			if(self::$modevalues[$mode] == self::MODE_WITH_PARAMETER) {
+				$this->modeparams[$mode] = $args[$c++];
+			}
+		}
 	}
 	
-	public getModeString() {
+	public setModes($modes, $returndiff = false) {
+		$args = explode(" ",$modes);
+		$c = 1;
+		$add = true;
+		$modestradd = "+";
+		$paramstradd = "";
+		$modestrdel = "-";
+		for($i = 0; $i < strlen($args[0]); $i++) {
+			$mode = $args[0][$i];
+			if($mode == "+") {
+				$add = true;
+				continue;
+			}
+			if($mode == "-") { 
+				$add = false;
+				continue;
+			}
+			if(!array_key_exists($mode, self::$modevalues)) {
+				trigger_error("unknown mode (".$mode.") on setModes (".$modes.").", E_USER_WARNING);
+				continue;
+			}
+			$flag = self::$modevalues[$mode];
+			if($add) {
+				if($returndiff && !($this->modeflags & $flag)) {
+					$modestradd .= $mode;
+					if(self::$modevalues[$mode] == self::MODE_WITH_PARAMETER) {
+						$paramstradd .= " ".$args[$c];
+					}
+				}
+				$this->modeflags |= $flag;
+				if(self::$modevalues[$mode] == self::MODE_WITH_PARAMETER) {
+					$this->modeparams[$mode] = $args[$c++];
+				}
+			} else {
+				if($returndiff && ($this->modeflags & $flag)) {
+					$modestrdel .= $mode;
+				}
+				$this->modeflags &= ~$flag;
+			}
+		}
+		if($returndiff) {
+			$modediff = ($modestradd == "+" ? "" : $modestradd);
+			$modediff .= ($modestrdel == "-" ? "" : $modestrdel);
+			$modediff .= $paramstradd;
+			return $modediff;
+		}
+	}
 	
+	public getModeString() {
+		$modestr = "+";
+		$paramstr = "";
+		foreach(self::$modevalues as $mode => $flag) {
+			if(($this->modeflags & $flag)) {
+				$modestr .= $mode;
+				if(self::$modevalues[$mode] == self::MODE_WITH_PARAMETER) {
+					$paramstr .= " ".$this->modeparams[$mode];
+				}
+			}
+		}
+		return $modestr.$paramstr;
 	}
 	
 }