Author: nextgens Date: 2007-08-13 20:59:10 +0000 (Mon, 13 Aug 2007) New Revision: 14664
Removed: trunk/freenet/src/freenet/clients/http/filter/CSSTokenizerFilter.java Modified: trunk/freenet/src/freenet/clients/http/filter/CSSTokenizerFilter.jflex Log: Fix last commit, unbreak the CSS filter (hopefully). REVIEW IT! Deleted: trunk/freenet/src/freenet/clients/http/filter/CSSTokenizerFilter.java =================================================================== --- trunk/freenet/src/freenet/clients/http/filter/CSSTokenizerFilter.java 2007-08-13 20:23:07 UTC (rev 14663) +++ trunk/freenet/src/freenet/clients/http/filter/CSSTokenizerFilter.java 2007-08-13 20:59:10 UTC (rev 14664) @@ -1,1639 +0,0 @@ -/* The following code was generated by JFlex 1.4.1 on 10/05/07 18:37 */ - -/* This code is part of Freenet. It is distributed under the GNU General - * Public License, version 2 (or at your option any later version). See - * http://www.gnu.org/ for further details of the GPL. */ -package freenet.clients.http.filter; -import java.io.*; -import freenet.l10n.L10n; -/* This class tokenizes a CSS2 Reader stream, writes it out to the output Writer, and filters any URLs found */ -// WARNING: this is not as thorough as the HTML parser - new versions of the standard could lead to anonymity risks. See comments in SaferFilter.java -// FIXME: Rewrite this as a proper whitelist filter. It's about half way there, it -// just needs somebody to go over the standard carefully and eliminate everything that isn't sufficiently specific (e.g. matching a '-' on its own). -// Mostly from http://www.w3.org/TR/REC-CSS2/grammar.html - - -/** - * This class is a scanner generated by - * <a href="http://www.jflex.de/";>JFlex</a> 1.4.1 - * on 10/05/07 18:37 from the specification file - * <tt>freenet/clients/http/filter/CSSTokenizerFilter.jflex</tt> - */ -class CSSTokenizerFilter { - - /** This character denotes the end of file */ - public static final int YYEOF = -1; - - /** initial size of the lookahead buffer */ - private static final int ZZ_BUFFERSIZE = 16384; - - /** lexical states */ - public static final int YYINITIAL = 0; - - /** - * Translates characters to character classes - */ - private static final String ZZ_CMAP_PACKED = - "\11\0\1\3\1\3\1\0\1\3\1\3\22\0\1\5\1\41\1\11"+ - "\1\17\1\4\1\64\1\4\1\12\1\23\1\15\1\37\1\56\1\24"+ - "\1\13\1\14\1\36\12\1\1\46\1\33\1\40\1\44\1\42\1\16"+ - "\1\25\1\47\1\6\1\55\1\52\1\51\1\53\1\50\1\61\1\26"+ - "\1\7\1\63\1\22\1\27\1\54\1\31\1\30\1\7\1\21\1\60"+ - "\1\32\1\20\2\7\1\57\1\7\1\62\1\4\1\2\2\4\1\10"+ - "\1\4\1\47\1\6\1\55\1\52\1\51\1\53\1\50\1\61\1\26"+ - "\1\7\1\63\1\22\1\27\1\54\1\31\1\30\1\7\1\21\1\60"+ - "\1\32\1\20\2\7\1\57\1\7\1\62\1\34\1\45\1\35\1\43"+ - "\uff81\0"; - - /** - * Translates characters to character classes - */ - private static final char [] ZZ_CMAP = zzUnpackCMap(ZZ_CMAP_PACKED); - - /** - * Translates DFA states to action switch labels. - */ - private static final int [] ZZ_ACTION = zzUnpackAction(); - - private static final String ZZ_ACTION_PACKED_0 = - "\1\0\1\1\1\2\1\1\1\3\1\2\2\1\2\4"+ - "\1\5\1\1\1\2\1\4\1\1\1\6\1\7\1\10"+ - "\1\4\4\1\3\0\1\11\1\0\1\12\1\13\1\2"+ - "\2\0\1\14\2\0\1\15\2\0\1\16\1\17\1\0"+ - "\1\17\1\2\1\0\1\20\1\0\5\20\4\0\1\21"+ - "\1\22\2\0\1\2\2\14\2\0\1\15\1\23\12\0"+ - "\2\17\1\2\2\24\6\20\4\0\1\2\1\0\1\15"+ - "\2\0\1\25\1\17\1\11\1\24\1\0\1\24\6\20"+ - "\1\26\1\27\2\0\1\2\1\0\1\15\2\17\5\0"+ - "\1\30\2\24\1\31\3\20\1\32\2\20\2\0\1\2"+ - "\1\0\1\15\2\17\1\30\3\0\2\24\1\31\5\20"+ - "\2\0\1\2\1\0\1\15\1\25\1\17\2\0\2\24"+ - "\1\31\2\20\1\33\2\0\2\20\6\0\1\34\1\15"+ - "\1\17\2\30\2\24\1\31\1\20\1\0\1\20\4\0"+ - "\1\20\1\35\2\33\2\20\2\0\1\34\3\0\1\31"+ - "\1\0\2\20\1\35\4\0\1\20\1\33\1\20\6\0"+ - "\1\31\1\20\5\0\1\35\1\0\1\20\1\33\1\36"+ - "\3\0\1\37\2\34\1\20\4\0\1\35\5\0\1\35"+ - "\1\0\1\33\1\0\1\40\1\0\1\20\15\0\1\33"+ - "\2\40\1\20\11\0\1\33\1\20\6\0\1\35\23\0"+ - "\1\35\3\0\1\35\32\0"; - - private static int [] zzUnpackAction() { - int [] result = new int[343]; - int offset = 0; - offset = zzUnpackAction(ZZ_ACTION_PACKED_0, offset, result); - return result; - } - - private static int zzUnpackAction(String packed, int offset, int [] result) { - int i = 0; /* index in packed string */ - int j = offset; /* index in unpacked array */ - int l = packed.length(); - while (i < l) { - int count = packed.charAt(i++); - int value = packed.charAt(i++); - do result[j++] = value; while (--count > 0); - } - return j; - } - - - /** - * Translates a state to a row index in the transition table - */ - private static final int [] ZZ_ROWMAP = zzUnpackRowMap(); - - private static final String ZZ_ROWMAP_PACKED_0 = - "\0\0\0\65\0\152\0\237\0\324\0\u0109\0\u013e\0\u0173"+ - "\0\u01a8\0\u01dd\0\65\0\u0212\0\u0247\0\65\0\u027c\0\65"+ - "\0\u02b1\0\u02e6\0\u031b\0\u0350\0\u0385\0\u03ba\0\u03ef\0\237"+ - "\0\u0424\0\u01dd\0\65\0\u0459\0\65\0\65\0\u048e\0\u013e"+ - "\0\u04c3\0\65\0\u0173\0\u04f8\0\u052d\0\u0562\0\u0597\0\u05cc"+ - "\0\u0601\0\u0636\0\u066b\0\u06a0\0\u06d5\0\u070a\0\u073f\0\u0774"+ - "\0\u07a9\0\u07de\0\u0813\0\u0848\0\u087d\0\u08b2\0\u0385\0\u08e7"+ - "\0\65\0\65\0\u091c\0\u0951\0\u0986\0\u013e\0\u0173\0\u09bb"+ - "\0\u09f0\0\u0a25\0\65\0\u0a5a\0\u0a8f\0\u0ac4\0\u0af9\0\u0b2e"+ - "\0\u0b63\0\u0b98\0\u0bcd\0\u0c02\0\u0c37\0\u0c6c\0\u0ca1\0\u0cd6"+ - "\0\u0d0b\0\u0d40\0\u0d75\0\u0daa\0\u0ddf\0\u0e14\0\u0e49\0\u0e7e"+ - "\0\u0eb3\0\u0ee8\0\u0f1d\0\u0f52\0\u0f87\0\u0fbc\0\u0ff1\0\u1026"+ - 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"\0\u3c3f\0\u3c74\0\u3ca9\0\u3cde\0\u3d13\0\u3d48\0\u3d7d"; - - private static int [] zzUnpackRowMap() { - int [] result = new int[343]; - int offset = 0; - offset = zzUnpackRowMap(ZZ_ROWMAP_PACKED_0, offset, result); - return result; - } - - private static int zzUnpackRowMap(String packed, int offset, int [] result) { - int i = 0; /* index in packed string */ - int j = offset; /* index in unpacked array */ - int l = packed.length(); - while (i < l) { - int high = packed.charAt(i++) << 16; - result[j++] = high | packed.charAt(i++); - } - return j; - } - - /** - * The transition table of the DFA - */ - private static final int [] ZZ_TRANS = zzUnpackTrans(); - - private static final String ZZ_TRANS_PACKED_0 = - "\1\2\1\3\1\4\1\5\1\2\1\5\2\6\1\2"+ - "\1\7\1\10\1\11\1\12\1\13\1\2\1\14\1\15"+ - "\2\6\1\2\1\16\1\17\5\6\1\20\1\21\1\22"+ - "\1\23\1\16\1\24\1\25\1\16\1\26\1\2\1\27"+ - "\1\16\7\6\1\16\5\6\1\2\66\0\1\3\1\30"+ - "\1\31\1\0\1\31\3\6\2\0\1\6\1\32\3\0"+ - "\3\6\1\33\1\34\1\0\5\6\1\35\13\0\7\6"+ - 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int i = 0; /* index in packed string */ - int j = offset; /* index in unpacked array */ - int l = packed.length(); - while (i < l) { - int count = packed.charAt(i++); - int value = packed.charAt(i++); - value--; - do result[j++] = value; while (--count > 0); - } - return j; - } - - - /* error codes */ - private static final int ZZ_UNKNOWN_ERROR = 0; - private static final int ZZ_NO_MATCH = 1; - private static final int ZZ_PUSHBACK_2BIG = 2; - - /* error messages for the codes above */ - private static final String ZZ_ERROR_MSG[] = { - "Unkown internal scanner error", - "Error: could not match input", - "Error: pushback value was too large" - }; - - /** - * ZZ_ATTRIBUTE[aState] contains the attributes of state <code>aState</code> - */ - private static final int [] ZZ_ATTRIBUTE = zzUnpackAttribute(); - - private static final String ZZ_ATTRIBUTE_PACKED_0 = - "\1\0\1\11\10\1\1\11\2\1\1\11\1\1\1\11"+ - "\7\1\3\0\1\11\1\0\2\11\1\1\2\0\1\11"+ - "\2\0\1\1\2\0\2\1\1\0\2\1\1\0\1\1"+ - "\1\0\5\1\4\0\2\11\2\0\3\1\2\0\1\1"+ - "\1\11\12\0\13\1\4\0\1\1\1\0\1\1\2\0"+ - "\4\1\1\0\7\1\2\11\2\0\1\1\1\0\3\1"+ - "\5\0\1\11\11\1\2\0\1\1\1\0\4\1\3\0"+ - "\10\1\2\0\1\1\1\0\3\1\2\0\6\1\2\0"+ - "\2\1\6\0\1\11\5\1\1\11\2\1\1\0\1\1"+ - "\4\0\6\1\2\0\1\1\3\0\1\1\1\0\3\1"+ - "\4\0\3\1\6\0\1\11\1\1\5\0\1\11\1\0"+ - "\3\1\3\0\1\11\3\1\4\0\1\1\5\0\1\1"+ - "\1\0\1\1\1\0\1\11\1\0\1\1\15\0\4\1"+ - "\11\0\2\1\6\0\1\1\23\0\1\1\3\0\1\1"+ - "\32\0"; - - private static int [] zzUnpackAttribute() { - int [] result = new int[343]; - int offset = 0; - offset = zzUnpackAttribute(ZZ_ATTRIBUTE_PACKED_0, offset, result); - return result; - } - - private static int zzUnpackAttribute(String packed, int offset, int [] result) { - int i = 0; /* index in packed string */ - int j = offset; /* index in unpacked array */ - int l = packed.length(); - while (i < l) { - int count = packed.charAt(i++); - int value = packed.charAt(i++); - do result[j++] = value; while (--count > 0); - } - return j; - } - - /** the input device */ - private java.io.Reader zzReader; - - /** the current state of the DFA */ - private int zzState; - - /** the current lexical state */ - private int zzLexicalState = YYINITIAL; - - /** this buffer contains the current text to be matched and is - the source of the yytext() string */ - private char zzBuffer[] = new char[ZZ_BUFFERSIZE]; - - /** the textposition at the last accepting state */ - private int zzMarkedPos; - - /** the textposition at the last state to be included in yytext */ - private int zzPushbackPos; - - /** the current text position in the buffer */ - private int zzCurrentPos; - - /** startRead marks the beginning of the yytext() string in the buffer */ - private int zzStartRead; - - /** endRead marks the last character in the buffer, that has been read - from input */ - private int zzEndRead; - - /** number of newlines encountered up to the start of the matched text */ - private int yyline; - - /** the number of characters up to the start of the matched text */ - private int yychar; - - /** - * the number of characters from the last newline up to the start of the - * matched text - */ - private int yycolumn; - - /** - * zzAtBOL == true <=> the scanner is currently at the beginning of a line - */ - private boolean zzAtBOL = true; - - /** zzAtEOF == true <=> the scanner is at the EOF */ - private boolean zzAtEOF; - - /* user code: */ - // Put stuff to include in the class here - String detectedCharset; - - // External flag - boolean paranoidStringCheck = false; - boolean deleteErrors = true; - boolean debug = true; - - // Internal flags - boolean postBadImportFlag = false; // both URLs and @import's - boolean importFlag = false; - boolean urlFlag = false; - - // Writer - Writer w = null; // Will NPE if not initialized properly - - public void parse () throws IOException { - while (yylex() != null); - } - - CSSTokenizerFilter(Reader r, Writer w, boolean paranoidStringCheck) { - this(r); - this.w = w; - this.paranoidStringCheck = paranoidStringCheck; - } - - void throwError(String s) throws IOException { - throw new IllegalStateException("You MUST override throwError!"); - } - - String processImportURL(String s) throws CommentException { - throw new IllegalStateException("You MUST override processImportURL!"); - } - - String processURL(String s) throws CommentException { - throw new IllegalStateException("You MUST override processURL!"); - } - - void log(String s) { - System.err.println("CSSTokenizerFilter: "+s); - } - - void logError(String s) { - System.err.println("CSSTokenizerFilter ERROR: "+s); - } - - static String unquote(String s, char c) { - if(s.length() > 1) { - if(s.charAt(s.length()-1) == c) { - s = s.substring(1, s.length()-1); - return s; - } else return ""; - } else return ""; - } - - // This is not very efficient. The parser below knows the quoting rules too. - - static boolean isHexDigit(char c) { - return ('a' <= c && c <= 'f' || - 'A' <= c && c <= 'F' || - '0' <= c && c <= '9'); - } - - static String l10n(String key) { - return L10n.getString("CSSTokenizerFilter."+key); - } - - class DecodedStringThingy { - char quote; // " " means not quoted - boolean url; // in a url() ? - String data; - public String suffix; // includes any whitespace - public DecodedStringThingy(String s) { - if(s.startsWith("url(")) { - s = s.substring("url(".length()); - url = true; - } - char q = s.charAt(0); - if(q == '\'' || q == '\"') { - quote = q; - s = s.substring(1); - } else quote = ' '; - StringBuffer buffer = new StringBuffer(); - int x = 0; - boolean justEscaping = false; - boolean stillEscaping = false; - StringBuffer hexEscape = new StringBuffer(); - while(x < s.length()) { - char c = s.charAt(x); - x++; - if(justEscaping) { - if(c == '\n') { - buffer.append(c); - justEscaping = false; - } else if(isHexDigit(c)) { - hexEscape.append(c); - justEscaping = false; - stillEscaping = true; - } else { - buffer.append(c); - // Will need to be reencoded if quote or \n - justEscaping = false; - } - } else if(stillEscaping) { - if(isHexDigit(c) && hexEscape.length() < 6) { - hexEscape.append(c); - } else if(Character.isWhitespace(c)) { - // Ignore one whitespace char after an escape - int d = Integer.parseInt(hexEscape.toString(), - 16); - // FIXME once we can use 1.5, use Characters.toChars(int). - if(d > 0xFFFF) { - String error = - l10n("supplementalCharsNotSupported"); - logError(error); - try { - w.write("/* "+error+"*/"); - } catch (IOException e) {}; - } else { - c = (char)d; - buffer.append(c); - } - stillEscaping = false; - hexEscape = new StringBuffer(); - } else { - int d = Integer.parseInt(hexEscape.toString(), - 16); - // FIXME once we can use 1.5, use Characters.toChars(int). - if(d > 0xFFFF) { - String error = - l10n("supplementalCharsNotSupported"); - logError(error); - try { - w.write("/* "+error+"*/"); - } catch (IOException e) {}; - } else { - char o = (char)d; - buffer.append(o); - } - buffer.append(c); - stillEscaping = false; - hexEscape = new StringBuffer(); - } - } else { - if(quote != ' ' && c == quote) { - break; - } else if (quote == ' ' && c == ')') { - break; - } else if (c == '\\') { - justEscaping = true; - } else { - buffer.append(c); - } - } - } - data = buffer.toString(); - if(url && s.length() > x && s.charAt(x) == ')') - x++; - if(x < (s.length())) - suffix = s.substring(x); - else - suffix = ""; - } - - public String toString() { - StringBuffer out = new StringBuffer(); - if(url) out.append("url("); - if(quote != ' ') out.append(quote); - out.append(unescapeData()); - if(quote != ' ') out.append(quote); - if(url) out.append(")"); - out.append(suffix); - return out.toString(); - } - - public String unescapeData() { - StringBuffer sb = new StringBuffer(); - for(int i=0;i<data.length();i++) { - char c = data.charAt(i); - if(c == quote || c == '\n') { - sb.append('\\'); - } - sb.append(c); - } - return sb.toString(); - } - } - - String commentEncode(String s) { - StringBuffer sb = new StringBuffer(s.length()); - for(int i=0;i<s.length();i++) { - char c = s.charAt(i); - if(c == '/') - sb.append("\\/"); - else - sb.append(c); - } - return sb.toString(); - } - - - /** - * Creates a new scanner - * There is also a java.io.InputStream version of this constructor. - * - * @param in the java.io.Reader to read input from. - */ - CSSTokenizerFilter(java.io.Reader in) { - this.zzReader = in; - } - - /** - * Creates a new scanner. - * There is also java.io.Reader version of this constructor. - * - * @param in the java.io.Inputstream to read input from. - */ - CSSTokenizerFilter(java.io.InputStream in) { - this(new java.io.InputStreamReader(in)); - } - - /** - * Unpacks the compressed character translation table. - * - * @param packed the packed character translation table - * @return the unpacked character translation table - */ - private static char [] zzUnpackCMap(String packed) { - char [] map = new char[0x10000]; - int i = 0; /* index in packed string */ - int j = 0; /* index in unpacked array */ - while (i < 182) { - int count = packed.charAt(i++); - char value = packed.charAt(i++); - do map[j++] = value; while (--count > 0); - } - return map; - } - - - /** - * Refills the input buffer. - * - * @return <code>false</code>, iff there was new input. - * - * @exception java.io.IOException if any I/O-Error occurs - */ - private boolean zzRefill() throws java.io.IOException { - - /* first: make room (if you can) */ - if (zzStartRead > 0) { - System.arraycopy(zzBuffer, zzStartRead, - zzBuffer, 0, - zzEndRead-zzStartRead); - - /* translate stored positions */ - zzEndRead-= zzStartRead; - zzCurrentPos-= zzStartRead; - zzMarkedPos-= zzStartRead; - zzPushbackPos-= zzStartRead; - zzStartRead = 0; - } - - /* is the buffer big enough? */ - if (zzCurrentPos >= zzBuffer.length) { - /* if not: blow it up */ - char newBuffer[] = new char[zzCurrentPos*2]; - System.arraycopy(zzBuffer, 0, newBuffer, 0, zzBuffer.length); - zzBuffer = newBuffer; - } - - /* finally: fill the buffer with new input */ - int numRead = zzReader.read(zzBuffer, zzEndRead, - zzBuffer.length-zzEndRead); - - if (numRead < 0) { - return true; - } - else { - zzEndRead+= numRead; - return false; - } - } - - - /** - * Closes the input stream. - */ - public final void yyclose() throws java.io.IOException { - zzAtEOF = true; /* indicate end of file */ - zzEndRead = zzStartRead; /* invalidate buffer */ - - if (zzReader != null) - zzReader.close(); - } - - - /** - * Resets the scanner to read from a new input stream. - * Does not close the old reader. - * - * All internal variables are reset, the old input stream - * <b>cannot</b> be reused (internal buffer is discarded and lost). - * Lexical state is set to <tt>ZZ_INITIAL</tt>. - * - * @param reader the new input stream - */ - public final void yyreset(java.io.Reader reader) { - zzReader = reader; - zzAtBOL = true; - zzAtEOF = false; - zzEndRead = zzStartRead = 0; - zzCurrentPos = zzMarkedPos = zzPushbackPos = 0; - yyline = yychar = yycolumn = 0; - zzLexicalState = YYINITIAL; - } - - - /** - * Returns the current lexical state. - */ - public final int yystate() { - return zzLexicalState; - } - - - /** - * Enters a new lexical state - * - * @param newState the new lexical state - */ - public final void yybegin(int newState) { - zzLexicalState = newState; - } - - - /** - * Returns the text matched by the current regular expression. - */ - public final String yytext() { - return new String( zzBuffer, zzStartRead, zzMarkedPos-zzStartRead ); - } - - - /** - * Returns the character at position <tt>pos</tt> from the - * matched text. - * - * It is equivalent to yytext().charAt(pos), but faster - * - * @param pos the position of the character to fetch. - * A value from 0 to yylength()-1. - * - * @return the character at position pos - */ - public final char yycharat(int pos) { - return zzBuffer[zzStartRead+pos]; - } - - - /** - * Returns the length of the matched text region. - */ - public final int yylength() { - return zzMarkedPos-zzStartRead; - } - - - /** - * Reports an error that occured while scanning. - * - * In a wellformed scanner (no or only correct usage of - * yypushback(int) and a match-all fallback rule) this method - * will only be called with things that "Can't Possibly Happen". - * If this method is called, something is seriously wrong - * (e.g. a JFlex bug producing a faulty scanner etc.). - * - * Usual syntax/scanner level error handling should be done - * in error fallback rules. - * - * @param errorCode the code of the errormessage to display - */ - private void zzScanError(int errorCode) { - String message; - try { - message = ZZ_ERROR_MSG[errorCode]; - } - catch (ArrayIndexOutOfBoundsException e) { - message = ZZ_ERROR_MSG[ZZ_UNKNOWN_ERROR]; - } - - throw new Error(message); - } - - - /** - * Pushes the specified amount of characters back into the input stream. - * - * They will be read again by then next call of the scanning method - * - * @param number the number of characters to be read again. - * This number must not be greater than yylength()! - */ - public void yypushback(int number) { - if ( number > yylength() ) - zzScanError(ZZ_PUSHBACK_2BIG); - - zzMarkedPos -= number; - } - - - /** - * Resumes scanning until the next regular expression is matched, - * the end of input is encountered or an I/O-Error occurs. - * - * @return the next token - * @exception java.io.IOException if any I/O-Error occurs - */ - public Yytoken yylex() throws java.io.IOException { - int zzInput; - int zzAction; - - // cached fields: - int zzCurrentPosL; - int zzMarkedPosL; - int zzEndReadL = zzEndRead; - char [] zzBufferL = zzBuffer; - char [] zzCMapL = ZZ_CMAP; - - int [] zzTransL = ZZ_TRANS; - int [] zzRowMapL = ZZ_ROWMAP; - int [] zzAttrL = ZZ_ATTRIBUTE; - - while (true) { - zzMarkedPosL = zzMarkedPos; - - zzAction = -1; - - zzCurrentPosL = zzCurrentPos = zzStartRead = zzMarkedPosL; - - zzState = zzLexicalState; - - - zzForAction: { - while (true) { - - if (zzCurrentPosL < zzEndReadL) - zzInput = zzBufferL[zzCurrentPosL++]; - else if (zzAtEOF) { - zzInput = YYEOF; - break zzForAction; - } - else { - // store back cached positions - zzCurrentPos = zzCurrentPosL; - zzMarkedPos = zzMarkedPosL; - boolean eof = zzRefill(); - // get translated positions and possibly new buffer - zzCurrentPosL = zzCurrentPos; - zzMarkedPosL = zzMarkedPos; - zzBufferL = zzBuffer; - zzEndReadL = zzEndRead; - if (eof) { - zzInput = YYEOF; - break zzForAction; - } - else { - zzInput = zzBufferL[zzCurrentPosL++]; - } - } - int zzNext = zzTransL[ zzRowMapL[zzState] + zzCMapL[zzInput] ]; - if (zzNext == -1) break zzForAction; - zzState = zzNext; - - int zzAttributes = zzAttrL[zzState]; - if ( (zzAttributes & 1) == 1 ) { - zzAction = zzState; - zzMarkedPosL = zzCurrentPosL; - if ( (zzAttributes & 8) == 8 ) break zzForAction; - } - - } - } - - // store back cached position - zzMarkedPos = zzMarkedPosL; - - switch (zzAction < 0 ? zzAction : ZZ_ACTION[zzAction]) { - case 24: - { // This is horrible. However it seems that there is no other way to do it with either jflex or CUP, as {URL} cannot be an unambiguous token :( - String s = yytext(); - if(debug) log("Recognized URL: "+s); - - DecodedStringThingy dst = new DecodedStringThingy(s); - - if(!dst.url) { - throw new IllegalStateException("parsing url().. isn't a url()"); - } - if(dst.suffix.length() > 0) { - yypushback(dst.suffix.length()); - dst.suffix = ""; - } - - s = dst.data; - if(debug) log("URL now: "+s); - try { - s = processURL(s); - dst.data = s; - if(s == null || s.equals("")) { - if(debug) log("URL invalid"); - w.write("url()"); - } else { - s = dst.toString(); - if(debug) log("Writing: "+s); - w.write(s); - } - } catch (CommentException e) { - w.write("/* "+commentEncode(e.getMessage())+" */"); - } - } - case 33: break; - case 20: - { String s = yytext(); - w.write(s); - if(debug) log("Matched unicode: "+s); - } - case 34: break; - case 28: - { if(debug) log("Deleted unofficial ident with url: "+yytext()); - w.write("/* " + l10n("deletedUnofficialIdentWithURL") + " */"); - } - case 35: break; - case 8: - { String s = yytext(); - w.write(s); - if(debug) log("Matched close braces: "+s); - } - case 36: break; - case 23: - { String s = yytext(); - w.write(s); - if(debug) log("Matched HTML comment: "+s); - } - case 37: break; - case 12: - { String s = yytext(); - if(debug) log("Matched string: "+s); - if(paranoidStringCheck && s.indexOf(':') != -1) { - w.write("/* "+l10n("deletedDisallowedString")+" */"); - log("Deleted disallowed string: "+s); - } else { - w.write(s); - } - } - case 38: break; - case 17: - { String s = yytext(); - w.write(s); - if(debug) log("Matched ~=: "+s); - } - case 39: break; - case 26: - { String s = yytext(); - w.write(s); - if(debug) log("Matched @page: "+s); - } - case 40: break; - case 14: - { String s = yytext(); - w.write(s); - if(debug) log("Matched number: "+s); - } - case 41: break; - case 6: - { String s = yytext(); - w.write(s); - if(debug) log("Matched semicolon: "+s); - } - case 42: break; - case 21: - { String s = yytext(); - if(debug) log("Got hexcolor: "+s); - w.write(s); - } - case 43: break; - case 7: - { String s = yytext(); - w.write(s); - if(debug) log("Matched open braces: "+s); - } - case 44: break; - case 27: - { String s = yytext(); - s = s.substring("@media".length()).trim(); - w.write("@media "+s+" "); - if(debug) log("Matched @media: "+s); - } - case 45: break; - case 2: - { String s = yytext(); - w.write(s); - if(debug) log("Matched ident: "+s); - } - case 46: break; - case 25: - { String s = yytext(); - w.write(s); - if(debug) log("Matched unicode range: "+s); - } - case 47: break; - case 30: - { String s = yytext(); - w.write(s); - if(debug) log("Matched @font-face: "+s); - } - case 48: break; - case 13: - { if(debug) log("Deleted unofficial ident: "+yytext()); - w.write("/* " + l10n("deletedUnofficialIdent") + " */"); - } - case 49: break; - case 19: - { String s = yytext(); - w.write(s); - if(debug) log("Matched HTML comment: "+s); - } - case 50: break; - case 29: - { String s = yytext(); - if(debug) log("Found @import: "+s); - s = s.substring("@import".length()); - s = s.trim(); - DecodedStringThingy dst = new DecodedStringThingy(s); - s = dst.data; - if(debug) log("URL: "+s); - try { - s = processImportURL(s); - dst.data = s; - if(debug) log("Processed URL: "+s); - if(dst.quote == ' ') dst.quote = '\"'; - if (!(s == null || s.equals(""))) { - if(debug) log("URL now: "+s); - s = "@import "+dst.toString(); - if(debug) log("Writing: "+s); - w.write(s); - } else - if(debug) log("Dropped @import"); - } catch (CommentException e) { - w.write("/* " + commentEncode(e.getMessage()) + " */"); - } - } - case 51: break; - case 3: - { String s = yytext(); - w.write(s); - if(debug) log("Matched whitespace: "+s); - } - case 52: break; - case 1: - { String s = yytext(); - char c = s.charAt(0); - log("Matched anything: "+yytext()+" - ignoring"); - w.write("/* "+l10n("deletedUnmatchedChar")+" "+c+" */"); // single char cannot break out of comment - } - case 53: break; - case 31: - { String s = yytext(); - w.write(s); - if(debug) log("Matched important: "+s); - } - case 54: break; - case 22: - { String s = yytext(); - StringBuffer sb = new StringBuffer(s.length()); - sb.append("/* "); - boolean inPrefix = true; - for(int i=2;i<s.length()-2;i++) { - char c = s.charAt(i); - if(inPrefix && Character.isWhitespace(c)) { - continue; - } - inPrefix = false; - if(Character.isDigit(c) || Character.isWhitespace(c) || - Character.isLetter(c) || c == '.' || c == '_' || c == '-') { - // No @, no !, etc; IE has been known to do things with comments - // in CSS, and other browsers may too - sb.append(c); - } - } - while(Character.isWhitespace(sb.charAt(sb.length()-1))) - sb.deleteCharAt(sb.length()-1); - sb.append(" */"); - w.write(sb.toString()); - if(debug) log("Matched comment: "+s+" -> "+sb.toString()); - } - case 55: break; - case 16: - { if(!deleteErrors) { - throwError(l10n("unknownAtIdentifierLabel")+" "+yytext()); - } else { - String s = yytext(); - if(debug) log("Discarded identifier: "+s); - // Ignore - } - } - case 56: break; - case 11: - { String s = yytext(); - w.write(s); - if(debug) log("Matched measurement: "+s); - } - case 57: break; - case 18: - { String s = yytext(); - w.write(s); - if(debug) log("Matched |=: "+s); - } - case 58: break; - case 32: - { String s = yytext(); - detectedCharset = s; - if(debug) log("Matched and ignoring charset: "+s); - // Ignore - } - case 59: break; - case 10: - { if(postBadImportFlag) { - // Ignore - postBadImportFlag = false; - if(debug) log("Ignoring mediums list because after bad import: "+ - yytext()); - } else { - String s = yytext(); - w.write(s); - if(debug) log("Matched and passing on mediums list: "+s); - } - } - case 60: break; - case 9: - { String s = yytext(); - if(s.startsWith("url")) throwError(l10n("invalidURLContents")); - w.write(s); - if(debug) log("Matched function start: "+s); - } - case 61: break; - case 4: - { String s = yytext(); - w.write(s); - if(debug) log("Matched single char: "+s); - } - case 62: break; - case 15: - { String s = yytext(); - w.write(s); - if(debug) log("Matched #name: "+s); - } - case 63: break; - case 5: - { String s = yytext(); - w.write(s); - if(debug) log("Matched function end: "+s); - } - case 64: break; - default: - if (zzInput == YYEOF && zzStartRead == zzCurrentPos) { - zzAtEOF = true; - return null; - } - else { - zzScanError(ZZ_NO_MATCH); - } - } - } - } - - -} Modified: trunk/freenet/src/freenet/clients/http/filter/CSSTokenizerFilter.jflex =================================================================== --- trunk/freenet/src/freenet/clients/http/filter/CSSTokenizerFilter.jflex 2007-08-13 20:23:07 UTC (rev 14663) +++ trunk/freenet/src/freenet/clients/http/filter/CSSTokenizerFilter.jflex 2007-08-13 20:59:10 UTC (rev 14664) @@ -237,9 +237,9 @@ STRING2=\'(\\{NL}|\"|(\\\')|{NONASCII}|{ESCAPE}|[^\'])*\' IDENT={NMSTART}{NMCHAR}* -UNOFFICIAL_IDENT="-[^0-9]"{IDENT} +UNOFFICIAL_IDENT="-"{IDENT} NAME={NMCHAR}+ -NUM="-"([0-9]+|[0-9]*"."[0-9]+) +NUM=[-]([0-9]+|[0-9]*"."[0-9]+) STRING={STRING1}|{STRING2} // Not used any more. Was used in url(). Keep for now. Matches up to the end of a bracket. @@ -391,14 +391,6 @@ w.write(s); if(debug) log("Matched ident: "+s); } -{UNOFFICIAL_IDENT} { - if(debug) log("Deleted unofficial ident: "+yytext()); - w.write("/* " + l10n("deletedUnofficialIdent") + " */"); -} -{UNOFFICIAL_IDENT}{W}":"{W}{REALURL} { - if(debug) log("Deleted unofficial ident with url: "+yytext()); - w.write("/* " + l10n("deletedUnofficialIdentWithURL") + " */"); -} "@page" { String s = yytext(); w.write(s); @@ -445,7 +437,6 @@ w.write(s); if(debug) log("Matched number: "+s); } - {MEDIUMS}{W}*";" { if(postBadImportFlag) { // Ignore @@ -458,7 +449,6 @@ if(debug) log("Matched and passing on mediums list: "+s); } } - "@charset"{W}*{STRING}{W}*";" { String s = yytext(); detectedCharset = s; @@ -511,6 +501,14 @@ // Ignore } } +{UNOFFICIAL_IDENT} { + if(debug) log("Deleted unofficial ident: "+yytext()); + w.write("/* " + l10n("deletedUnofficialIdent") + " */"); +} +{UNOFFICIAL_IDENT}{W}":"{W}{REALURL} { + if(debug) log("Deleted unofficial ident with url: "+yytext()); + w.write("/* " + l10n("deletedUnofficialIdentWithURL") + " */"); +} // Default rule matches only one character . { String s = yytext();
