Author: kkolinko
Date: Thu Mar 15 21:47:30 2012
New Revision: 1301221

URL: http://svn.apache.org/viewvc?rev=1301221&view=rev
Log:
- Align %2f handling (aka CVE-2007-0450 fix) between implementations of 
UDecoder.convert().
That is: reject '%2f' if Tomcat is configured to do so.
- convert(MessageBytes): Make it to consistently throw an IOException on 
decoding errors,
regardless of what is behind the MessageBytes facade. If there was a
String it was re-throwing RuntimeException from convert(String).
- convert(String): Use StringBuilder

convert(String) and convert(CharChunk) are rare cases with little impact
(and inherent bug: %xx are converted from chars to chars, effectively treating 
them as ISO-8859-1 regardless of request encoding).

It is merge of r1203091 from trunk.

Modified:
    tomcat/tc6.0.x/trunk/   (props changed)
    tomcat/tc6.0.x/trunk/STATUS.txt
    tomcat/tc6.0.x/trunk/java/org/apache/tomcat/util/buf/UDecoder.java
    tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml

Propchange: tomcat/tc6.0.x/trunk/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Thu Mar 15 21:47:30 2012
@@ -1,3 +1,3 @@
 /tomcat/tc6.0.x/trunk:1224802
 /tomcat/tc7.0.x/trunk:1224802,1243045
-/tomcat/trunk:601180,606992,612607,630314,640888,652744,653247,666232,673796,673820,677910,683969,683982,684001,684081,684234,684269-684270,685177,687503,687645,689402,690781,691392,691805,692748,693378,694992,695053,695311,696780,696782,698012,698227,698236,698613,699427,699634,701355,709294,709811,709816,710063,710066,710125,710205,711126,711600,712461,712467,713953,714002,718360,719119,719124,719602,719626,719628,720046,720069,721040,721286,721708,721886,723404,723738,726052,727303,728032,728768,728947,729057,729567,729569,729571,729681,729809,729815,729934,730250,730590,731651,732859,732863,734734,740675,740684,742677,742697,742714,744160,744238,746321,746384,746425,747834,747863,748344,750258,750291,750921,751286-751287,751289,751295,752323,753039,757335,757774,758249,758365,758596,758616,758664,759074,761601,762868,762929,762936-762937,763166,763183,763193,763228,763262,763298,763302,763325,763599,763611,763654,763681,763706,764985,764997,765662,768335,769979,770716,77
 
0809,770876,772872,776921,776924,776935,776945,777464,777466,777576,777625,778379,778523-778524,781528,781779,782145,782791,783316,783696,783724,783756,783762,783766,783863,783934,784453,784602,784614,785381,785688,785768,785859,786468,786487,786490,786496,786667,787627,787770,787985,789389,790405,791041,791184,791194,791224,791243,791326,791328,791789,792740,793372,793757,793882,793981,794082,794673,794822,795043,795152,795210,795457,795466,797168,797425,797596,797607,802727,802940,804462,804544,804734,805153,809131,809603,810916,810977,812125,812137,812432,813001,813013,813866,814180,814708,814876,815972,816252,817442,817822,819339,819361,820110,820132,820874,820954,821397,828196,828201,828210,828225,828759,830378-830379,830999,831106,831774,831785,831828,831850,831860,832214,832218,833121,833545,834047,835036,835336,836405,881396,881412,883130,883134,883146,883165,883177,883362,883565,884341,885038,885231,885241,885260,885901,885991,886019,888072,889363,889606,889716,8901
 
39,890265,890349-890350,890417,891185-891187,891583,892198,892341,892415,892464,892555,892812,892814,892817,892843,892887,893321,893493,894580,894586,894805,894831,895013,895045,895057,895191,895392,895703,896370,896384,897380-897381,897776,898126,898256,898468,898527,898555,898558,898718,898836,898906,899284,899348,899420,899653,899769-899770,899783,899788,899792,899916,899918-899919,899935,899949,903916,905020,905151,905722,905728,905735,907311,907513,907538,907652,907819,907825,907864,908002,908721,908754,908759,909097,909206,909212,909525,909636,909869,909875,909887,910266,910370,910442,910471,910485,910974,915226,915737,915861,916097,916141,916157,916170,917598,917633,918093,918489,918594,918684,918787,918792,918799,918803,918885,919851,919914,920025,920055,920298,920449,920596,920824,920840,921444,922010,926716,927062,927621,928482,928695,928732,928798,931709,932357,932967,935105,935983,939491,939551,940064,941356,941463,943112,944409,944416,945231,945808,945835,945841
 
,946686,948057,950164,950596,950614,950851,950905,951615,953434,954435,955648,955655,956832,957130,957830,958192,960701,961948,962865,962872,962881,962900,963106,963865,963868,964614,966177-966178,966292,966692,966863,981815,988448,991837,993042,1001955,1002185,1002263,1002274,1002349,1002359,1002362,1002481,1002514,1003461,1003481,1003488,1003556,1003572,1003581,1003861,1004393,1004409,1004415,1004868-1004869,1004912,1005452,1005467,1005647,1005802,1022120,1022134,1022323,1022415,1022606,1022623,1024224,1024251,1026042,1026784,1026912,1026920,1029767,1033415,1033448,1033842,1033897,1037715,1037794,1037887,1037924,1038041,1042022,1042029,1042447,1042452,1042494,1044944,1044987,1050249,1055055,1055236,1055458,1055975,1056264,1056828,1056889,1059881,1061412,1061442,1061446,1062398,1064652,1066244,1066772,1067039,1067139,1069824,1070139,1070420,1070609,1072042,1073393,1075458,1076212,1078409,1078412,1079801,1081334,1088179,1088460,1090022,1094069,1094089,1095138,1097899,1099575
 
,1099586,1099772,1099789,1100145,1100822,1101094,1101144,1124680,1130774,1133014,1137862,1137996,1138950,1138953,1140693,1141104,1141441,1142043,1142904,1143134,1143150,1148216,1148471,1152601,1156171,1156519,1164567,1167394,1172233-1172234,1172236,1173614,1174353,1174882,1174884,1175158,1175190,1176799,1177125,1177245,1177850,1177862,1178228,1178233,1178684,1181028,1181136,1184917,1184919,1185200,1185588,1186011,1186104,1186123,1186137,1186153,1186378,1186712,1186763,1186949,1187381,1189240,1189386,1190388-1190389,1198622,1201576,1224801,1233426,1243034,1243038,1244567
+/tomcat/trunk:601180,606992,612607,630314,640888,652744,653247,666232,673796,673820,677910,683969,683982,684001,684081,684234,684269-684270,685177,687503,687645,689402,690781,691392,691805,692748,693378,694992,695053,695311,696780,696782,698012,698227,698236,698613,699427,699634,701355,709294,709811,709816,710063,710066,710125,710205,711126,711600,712461,712467,713953,714002,718360,719119,719124,719602,719626,719628,720046,720069,721040,721286,721708,721886,723404,723738,726052,727303,728032,728768,728947,729057,729567,729569,729571,729681,729809,729815,729934,730250,730590,731651,732859,732863,734734,740675,740684,742677,742697,742714,744160,744238,746321,746384,746425,747834,747863,748344,750258,750291,750921,751286-751287,751289,751295,752323,753039,757335,757774,758249,758365,758596,758616,758664,759074,761601,762868,762929,762936-762937,763166,763183,763193,763228,763262,763298,763302,763325,763599,763611,763654,763681,763706,764985,764997,765662,768335,769979,770716,77
 
0809,770876,772872,776921,776924,776935,776945,777464,777466,777576,777625,778379,778523-778524,781528,781779,782145,782791,783316,783696,783724,783756,783762,783766,783863,783934,784453,784602,784614,785381,785688,785768,785859,786468,786487,786490,786496,786667,787627,787770,787985,789389,790405,791041,791184,791194,791224,791243,791326,791328,791789,792740,793372,793757,793882,793981,794082,794673,794822,795043,795152,795210,795457,795466,797168,797425,797596,797607,802727,802940,804462,804544,804734,805153,809131,809603,810916,810977,812125,812137,812432,813001,813013,813866,814180,814708,814876,815972,816252,817442,817822,819339,819361,820110,820132,820874,820954,821397,828196,828201,828210,828225,828759,830378-830379,830999,831106,831774,831785,831828,831850,831860,832214,832218,833121,833545,834047,835036,835336,836405,881396,881412,883130,883134,883146,883165,883177,883362,883565,884341,885038,885231,885241,885260,885901,885991,886019,888072,889363,889606,889716,8901
 
39,890265,890349-890350,890417,891185-891187,891583,892198,892341,892415,892464,892555,892812,892814,892817,892843,892887,893321,893493,894580,894586,894805,894831,895013,895045,895057,895191,895392,895703,896370,896384,897380-897381,897776,898126,898256,898468,898527,898555,898558,898718,898836,898906,899284,899348,899420,899653,899769-899770,899783,899788,899792,899916,899918-899919,899935,899949,903916,905020,905151,905722,905728,905735,907311,907513,907538,907652,907819,907825,907864,908002,908721,908754,908759,909097,909206,909212,909525,909636,909869,909875,909887,910266,910370,910442,910471,910485,910974,915226,915737,915861,916097,916141,916157,916170,917598,917633,918093,918489,918594,918684,918787,918792,918799,918803,918885,919851,919914,920025,920055,920298,920449,920596,920824,920840,921444,922010,926716,927062,927621,928482,928695,928732,928798,931709,932357,932967,935105,935983,939491,939551,940064,941356,941463,943112,944409,944416,945231,945808,945835,945841
 
,946686,948057,950164,950596,950614,950851,950905,951615,953434,954435,955648,955655,956832,957130,957830,958192,960701,961948,962865,962872,962881,962900,963106,963865,963868,964614,966177-966178,966292,966692,966863,981815,988448,991837,993042,1001955,1002185,1002263,1002274,1002349,1002359,1002362,1002481,1002514,1003461,1003481,1003488,1003556,1003572,1003581,1003861,1004393,1004409,1004415,1004868-1004869,1004912,1005452,1005467,1005647,1005802,1022120,1022134,1022323,1022415,1022606,1022623,1024224,1024251,1026042,1026784,1026912,1026920,1029767,1033415,1033448,1033842,1033897,1037715,1037794,1037887,1037924,1038041,1042022,1042029,1042447,1042452,1042494,1044944,1044987,1050249,1055055,1055236,1055458,1055975,1056264,1056828,1056889,1059881,1061412,1061442,1061446,1062398,1064652,1066244,1066772,1067039,1067139,1069824,1070139,1070420,1070609,1072042,1073393,1075458,1076212,1078409,1078412,1079801,1081334,1088179,1088460,1090022,1094069,1094089,1095138,1097899,1099575
 
,1099586,1099772,1099789,1100145,1100822,1101094,1101144,1124680,1130774,1133014,1137862,1137996,1138950,1138953,1140693,1141104,1141441,1142043,1142904,1143134,1143150,1148216,1148471,1152601,1156171,1156519,1164567,1167394,1172233-1172234,1172236,1173614,1174353,1174882,1174884,1175158,1175190,1176799,1177125,1177245,1177850,1177862,1178228,1178233,1178684,1181028,1181136,1184917,1184919,1185200,1185588,1186011,1186104,1186123,1186137,1186153,1186378,1186712,1186763,1186949,1187381,1189240,1189386,1190388-1190389,1198622,1201576,1203091,1224801,1233426,1243034,1243038,1244567

Modified: tomcat/tc6.0.x/trunk/STATUS.txt
URL: 
http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/STATUS.txt?rev=1301221&r1=1301220&r2=1301221&view=diff
==============================================================================
--- tomcat/tc6.0.x/trunk/STATUS.txt (original)
+++ tomcat/tc6.0.x/trunk/STATUS.txt Thu Mar 15 21:47:30 2012
@@ -69,11 +69,6 @@ PATCHES PROPOSED TO BACKPORT:
   +1: kkolinko, rjung, fhanik
   -1:
 
-* Align %2f handling between implementations of UDecoder.convert()
-  http://svn.apache.org/viewvc?rev=1203091&view=rev
-  +1: kkolinko,funkman, fhanik
-  -1:
-
 * Backport SetCharacterEncodingFilter
   1) patch
    
http://people.apache.org/~kkolinko/patches/2011-12-22_tc6_SetCharacterEncodingFilter.patch

Modified: tomcat/tc6.0.x/trunk/java/org/apache/tomcat/util/buf/UDecoder.java
URL: 
http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/java/org/apache/tomcat/util/buf/UDecoder.java?rev=1301221&r1=1301220&r2=1301221&view=diff
==============================================================================
--- tomcat/tc6.0.x/trunk/java/org/apache/tomcat/util/buf/UDecoder.java 
(original)
+++ tomcat/tc6.0.x/trunk/java/org/apache/tomcat/util/buf/UDecoder.java Thu Mar 
15 21:47:30 2012
@@ -93,7 +93,7 @@ public final class UDecoder {
             idx=idx2;
         }
 
-        boolean noSlash = !(ALLOW_ENCODED_SLASH || query);
+        final boolean noSlash = !(ALLOW_ENCODED_SLASH || query);
 
         for( int j=idx; j<end; j++, idx++ ) {
             if( buff[ j ] == '+' && query) {
@@ -160,6 +160,8 @@ public final class UDecoder {
             idx=idx2;
         }
 
+        final boolean noSlash = !(ALLOW_ENCODED_SLASH || query);
+
         for( int j=idx; j<cend; j++, idx++ ) {
             if( buff[ j ] == '+' && query ) {
                 buff[idx]=( ' ' );
@@ -178,6 +180,9 @@ public final class UDecoder {
                 
                 j+=2;
                 int res=x2c( b1, b2 );
+                if (noSlash && (res == '/')) {
+                    throw EXCEPTION_SLASH;
+                }
                 buff[idx]=(char)res;
             }
         }
@@ -203,7 +208,11 @@ public final class UDecoder {
         case MessageBytes.T_STR:
             String strValue=mb.toString();
             if( strValue==null ) return;
-            mb.setString( convert( strValue, query ));
+            try {
+                mb.setString( convert( strValue, query ));
+            } catch (RuntimeException ex) {
+                throw new DecodeException(ex.getMessage());
+            }
             break;
         case MessageBytes.T_CHARS:
             CharChunk charC=mb.getCharChunk();
@@ -229,8 +238,10 @@ public final class UDecoder {
         
         if( (!query || str.indexOf( '+' ) < 0) && str.indexOf( '%' ) < 0 )
             return str;
-        
-        StringBuffer dec = new StringBuffer();    // decoded string output
+
+        final boolean noSlash = !(ALLOW_ENCODED_SLASH || query);
+
+        StringBuilder dec = new StringBuilder();    // decoded string output
         int strPos = 0;
         int strLen = str.length();
 
@@ -267,8 +278,12 @@ public final class UDecoder {
                 // We throw the original exception - the super will deal with
                 // it
                 //                try {
-                dec.append((char)Integer.
-                           parseInt(str.substring(strPos + 1, strPos + 3),16));
+                char res = (char) Integer.parseInt(
+                        str.substring(strPos + 1, strPos + 3), 16);
+                if (noSlash && (res == '/')) {
+                    throw new IllegalArgumentException("noSlash");
+                }
+                dec.append(res);
                 strPos += 3;
             }
         }

Modified: tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml
URL: 
http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml?rev=1301221&r1=1301220&r2=1301221&view=diff
==============================================================================
--- tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml (original)
+++ tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml Thu Mar 15 21:47:30 2012
@@ -104,7 +104,8 @@
         <code>(maxParameterCount-1)</code>. (kkolinko)
       </fix>
       <fix>
-        Slightly improve performance of UDecoder.convert(). (kkolinko)
+        Slightly improve performance of UDecoder.convert(). Align
+        <code>%2f</code> handling between implementations. (kkolinko)
       </fix>
     </changelog>
   </subsection>



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