From 28e192c519c59d97d70aea6fabe18927e1aff42a Mon Sep 17 00:00:00 2001 From: AsamK Date: Mon, 11 May 2015 12:55:18 +0200 Subject: [PATCH] First commit --- .gitignore | 7 + build.gradle | 24 + gradle/wrapper/gradle-wrapper.jar | Bin 0 -> 51018 bytes gradle/wrapper/gradle-wrapper.properties | 6 + gradlew | 164 ++ gradlew.bat | 90 + settings.gradle | 18 + src/main/java/cli/Base64.java | 2135 ++++++++++++++++++ src/main/java/cli/JsonAxolotlStore.java | 135 ++ src/main/java/cli/JsonIdentityKeyStore.java | 74 + src/main/java/cli/JsonPreKeyStore.java | 67 + src/main/java/cli/JsonSessionStore.java | 94 + src/main/java/cli/JsonSignedPreKeyStore.java | 84 + src/main/java/cli/Main.java | 148 ++ src/main/java/cli/Manager.java | 181 ++ src/main/java/cli/Util.java | 25 + src/main/java/cli/WhisperTrustStore.java | 20 + src/main/resources/cli/whisper.store | Bin 0 -> 1107 bytes 18 files changed, 3272 insertions(+) create mode 100644 .gitignore create mode 100644 build.gradle create mode 100644 gradle/wrapper/gradle-wrapper.jar create mode 100644 gradle/wrapper/gradle-wrapper.properties create mode 100755 gradlew create mode 100644 gradlew.bat create mode 100644 settings.gradle create mode 100644 src/main/java/cli/Base64.java create mode 100644 src/main/java/cli/JsonAxolotlStore.java create mode 100644 src/main/java/cli/JsonIdentityKeyStore.java create mode 100644 src/main/java/cli/JsonPreKeyStore.java create mode 100644 src/main/java/cli/JsonSessionStore.java create mode 100644 src/main/java/cli/JsonSignedPreKeyStore.java create mode 100644 src/main/java/cli/Main.java create mode 100644 src/main/java/cli/Manager.java create mode 100644 src/main/java/cli/Util.java create mode 100644 src/main/java/cli/WhisperTrustStore.java create mode 100644 src/main/resources/cli/whisper.store diff --git a/.gitignore b/.gitignore new file mode 100644 index 00000000..e98305a3 --- /dev/null +++ b/.gitignore @@ -0,0 +1,7 @@ +.gradle/ +.idea/ +build/ +*~ +*.swp +*.iml +local.properties diff --git a/build.gradle b/build.gradle new file mode 100644 index 00000000..f9d89548 --- /dev/null +++ b/build.gradle @@ -0,0 +1,24 @@ +apply plugin: 'java' +apply plugin: 'application' + +mainClassName = 'cli.Main' + +repositories { + mavenCentral() +} + +dependencies { + compile 'org.whispersystems:textsecure-java:1.3.0' + compile 'com.madgag.spongycastle:prov:1.51.0.0' + compile 'org.json:json:20141113' + compile 'commons-io:commons-io:2.4' + compile 'net.sourceforge.argparse4j:argparse4j:0.5.0' +} + +jar { + baseName = 'textsecure-cli' + version = '0.0.1' + manifest { + attributes 'Main-Class': 'cli.Main' + } +} diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar new file mode 100644 index 0000000000000000000000000000000000000000..c97a8bdb9088d370da7e88784a7a093b971aa23a GIT binary patch literal 51018 zcmagFbChSz(k5C}UABH@+qP}H%eL+6vTawFZQHiHY}>BeGv~~A=l$l)y}5Som4C!u znHei0^2sM+D@gwUg$4qGgao=#br%Kt+d%%u>u-bl+hs*n1ZgGZ#OQwjDf~mwOBOy} z@UMW{-;Vmf3(5-0Ns5UotI)}c-OEl+$Vk)D&B002QcX|JG$=7FGVdJTP124^PRUMD zOVR*CpM@Bw929C&wxW|39~2sn_BUajVxD5&Io>(~|Fy9gm>3ur-vVWO-L648qRuK~#rxo+Dno zN$;BHeJBFq{$312A@64P)Cr$5QiJxUsyQ{(bEyq5gJ$No=5CfVip&aH46>kLmk4Td zXj+eR5gq9fKfj77AR$KvvG!=REopfPZmgAl3g31WCOgP`{y1k$L|*R_{GeGPSRpYC zaQx8d0XP?0T%Z4@oRQ7OkHnCA~wEL?pXA2Xjzaw`KK^JFp z6I*8sBLinU$A2lINZG~?SrE||jUsepZm&$gDtT?$Q{^ziZcZNyYIraxjckc51i=&r zo5QJ#*ef#0uSn0jAe_G!-y{pH98{9=mhWP6nt5ijp}~va*Y^`XFKUEro+7PQfuS~~ zUl!$jRl1 za6yh{VIy&i z+Ka0B?$#wFemv78?abqT08h7K{b5vSw#P?s4h;pzW4!p^^LJ@j!@FmJ1Um}Wd%JKojYOknfl_H3>Hesd! 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zA9bzvj0LDO{{i~@T@!TB(|P-Un&XdA!#ZP5hybX*0948!kpF2u9>6a12h?xR@ptU6 zmHu-_JWiqd1G?HX05InN0rz{i{#QVps|8HsZ9{0xMq-;M~4qp9{ zsf%=y;7LV)yI6=TqrYwzr!Sriv51@6HzorX#O!Ziw{U=qJ z*59c9i(30*_{T!yKjDdW{s#a3PW(-F{4v#I#nPWtLMH!$>RYG%ukLy*`uLN?(EMMJ z{9OX_af=>niam3e8g1OY+2!6~G|HfAP zxFwGxG=36AX8lI=+vEDTpW9=v_fO>b+~1IYf0({O|JeurxDk)NjX$Y^-u;d0f6S$i zooqj0_X_?7`+dOpi_7hC10I{=e=^aQ{>Jop$^T2={f`DcHV^-#0V@BE<`>xS4f=NZ z%h>nWPWTgFsq$ao|97k5 \(.*\)$'` + if expr "$link" : '/.*' > /dev/null; then + PRG="$link" + else + PRG=`dirname "$PRG"`"/$link" + fi +done +SAVED="`pwd`" +cd "`dirname \"$PRG\"`/" >&- +APP_HOME="`pwd -P`" +cd "$SAVED" >&- + +CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar + +# Determine the Java command to use to start the JVM. +if [ -n "$JAVA_HOME" ] ; then + if [ -x "$JAVA_HOME/jre/sh/java" ] ; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD="$JAVA_HOME/jre/sh/java" + else + JAVACMD="$JAVA_HOME/bin/java" + fi + if [ ! -x "$JAVACMD" ] ; then + die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +else + JAVACMD="java" + which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." +fi + +# Increase the maximum file descriptors if we can. +if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then + MAX_FD_LIMIT=`ulimit -H -n` + if [ $? -eq 0 ] ; then + if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then + MAX_FD="$MAX_FD_LIMIT" + fi + ulimit -n $MAX_FD + if [ $? -ne 0 ] ; then + warn "Could not set maximum file descriptor limit: $MAX_FD" + fi + else + warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" + fi +fi + +# For Darwin, add options to specify how the application appears in the dock +if $darwin; then + GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" +fi + +# For Cygwin, switch paths to Windows format before running java +if $cygwin ; then + APP_HOME=`cygpath --path --mixed "$APP_HOME"` + CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` + + # We build the pattern for arguments to be converted via cygpath + ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` + SEP="" + for dir in $ROOTDIRSRAW ; do + ROOTDIRS="$ROOTDIRS$SEP$dir" + SEP="|" + done + OURCYGPATTERN="(^($ROOTDIRS))" + # Add a user-defined pattern to the cygpath arguments + if [ "$GRADLE_CYGPATTERN" != "" ] ; then + OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" + fi + # Now convert the arguments - kludge to limit ourselves to /bin/sh + i=0 + for arg in "$@" ; do + CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` + CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option + + if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition + eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` + else + eval `echo args$i`="\"$arg\"" + fi + i=$((i+1)) + done + case $i in + (0) set -- ;; + (1) set -- "$args0" ;; + (2) set -- "$args0" "$args1" ;; + (3) set -- "$args0" "$args1" "$args2" ;; + (4) set -- "$args0" "$args1" "$args2" "$args3" ;; + (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; + (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; + (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; + (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; + (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; + esac +fi + +# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules +function splitJvmOpts() { + JVM_OPTS=("$@") +} +eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS +JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME" + +exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@" diff --git a/gradlew.bat b/gradlew.bat new file mode 100644 index 00000000..aec99730 --- /dev/null +++ b/gradlew.bat @@ -0,0 +1,90 @@ +@if "%DEBUG%" == "" @echo off +@rem ########################################################################## +@rem +@rem Gradle startup script for Windows +@rem +@rem ########################################################################## + +@rem Set local scope for the variables with windows NT shell +if "%OS%"=="Windows_NT" setlocal + +@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +set DEFAULT_JVM_OPTS= + +set DIRNAME=%~dp0 +if "%DIRNAME%" == "" set DIRNAME=. +set APP_BASE_NAME=%~n0 +set APP_HOME=%DIRNAME% + +@rem Find java.exe +if defined JAVA_HOME goto findJavaFromJavaHome + +set JAVA_EXE=java.exe +%JAVA_EXE% -version >NUL 2>&1 +if "%ERRORLEVEL%" == "0" goto init + +echo. +echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:findJavaFromJavaHome +set JAVA_HOME=%JAVA_HOME:"=% +set JAVA_EXE=%JAVA_HOME%/bin/java.exe + +if exist "%JAVA_EXE%" goto init + +echo. +echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:init +@rem Get command-line arguments, handling Windowz variants + +if not "%OS%" == "Windows_NT" goto win9xME_args +if "%@eval[2+2]" == "4" goto 4NT_args + +:win9xME_args +@rem Slurp the command line arguments. +set CMD_LINE_ARGS= +set _SKIP=2 + +:win9xME_args_slurp +if "x%~1" == "x" goto execute + +set CMD_LINE_ARGS=%* +goto execute + +:4NT_args +@rem Get arguments from the 4NT Shell from JP Software +set CMD_LINE_ARGS=%$ + +:execute +@rem Setup the command line + +set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar + +@rem Execute Gradle +"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% + +:end +@rem End local scope for the variables with windows NT shell +if "%ERRORLEVEL%"=="0" goto mainEnd + +:fail +rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of +rem the _cmd.exe /c_ return code! +if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 +exit /b 1 + +:mainEnd +if "%OS%"=="Windows_NT" endlocal + +:omega diff --git a/settings.gradle b/settings.gradle new file mode 100644 index 00000000..a2c308d3 --- /dev/null +++ b/settings.gradle @@ -0,0 +1,18 @@ +/* + * This settings file was auto generated by the Gradle buildInit task + * + * The settings file is used to specify which projects to include in your build. + * In a single project build this file can be empty or even removed. + * + * Detailed information about configuring a multi-project build in Gradle can be found + * in the user guide at http://gradle.org/docs/2.2.1/userguide/multi_project_builds.html + */ + +/* +// To declare projects as part of a multi-project build use the 'include' method +include 'shared' +include 'api' +include 'services:webservice' +*/ + +rootProject.name = 'textsecure-cli' diff --git a/src/main/java/cli/Base64.java b/src/main/java/cli/Base64.java new file mode 100644 index 00000000..061932ab --- /dev/null +++ b/src/main/java/cli/Base64.java @@ -0,0 +1,2135 @@ +package cli; + +/** + *

Encodes and decodes to and from Base64 notation.

+ *

Homepage: http://iharder.net/base64.

+ *

+ *

Example:

+ *

+ * String encoded = Base64.encode( myByteArray ); + *
+ * byte[] myByteArray = Base64.decode( encoded ); + *

+ *

The options parameter, which appears in a few places, is used to pass + * several pieces of information to the encoder. In the "higher level" methods such as + * encodeBytes( bytes, options ) the options parameter can be used to indicate such + * things as first gzipping the bytes before encoding them, not inserting linefeeds, + * and encoding using the URL-safe and Ordered dialects.

+ *

+ *

Note, according to RFC3548, + * Section 2.1, implementations should not add line feeds unless explicitly told + * to do so. I've got Base64 set to this behavior now, although earlier versions + * broke lines by default.

+ *

+ *

The constants defined in Base64 can be OR-ed together to combine options, so you + * might make a call like this:

+ *

+ * String encoded = Base64.encodeBytes( mybytes, Base64.GZIP | Base64.DO_BREAK_LINES ); + *

to compress the data before encoding it and then making the output have newline characters.

+ *

Also...

+ * String encoded = Base64.encodeBytes( crazyString.getBytes() ); + *

+ *

+ *

+ *

+ * Change Log: + *

+ *
    + *
  • v2.3.4 - Fixed bug when working with gzipped streams whereby flushing + * the Base64.OutputStream closed the Base64 encoding (by padding with equals + * signs) too soon. Also added an option to suppress the automatic decoding + * of gzipped streams. Also added experimental support for specifying a + * class loader when using the + * {@link #decodeToObject(java.lang.String, int, java.lang.ClassLoader)} + * method.
    • + *
  • v2.3.3 - Changed default char encoding to US-ASCII which reduces the internal Java + * footprint with its CharEncoders and so forth. Fixed some javadocs that were + * inconsistent. Removed imports and specified things like java.io.IOException + * explicitly inline.
    • + *
  • v2.3.2 - Reduced memory footprint! Finally refined the "guessing" of how big the + * final encoded data will be so that the code doesn't have to create two output + * arrays: an oversized initial one and then a final, exact-sized one. Big win + * when using the {@link #encodeBytesToBytes(byte[])} family of methods (and not + * using the gzip options which uses a different mechanism with streams and stuff).
    • + *
  • v2.3.1 - Added {@link #encodeBytesToBytes(byte[], int, int, int)} and some + * similar helper methods to be more efficient with memory by not returning a + * String but just a byte array.
    • + *
  • v2.3 - This is not a drop-in replacement! This is two years of comments + * and bug fixes queued up and finally executed. Thanks to everyone who sent + * me stuff, and I'm sorry I wasn't able to distribute your fixes to everyone else. + * Much bad coding was cleaned up including throwing exceptions where necessary + * instead of returning null values or something similar. Here are some changes + * that may affect you: + *
      + *
    • Does not break lines, by default. This is to keep in compliance with + * RFC3548.
      • + *
    • Throws exceptions instead of returning null values. Because some operations + * (especially those that may permit the GZIP option) use IO streams, there + * is a possiblity of an java.io.IOException being thrown. After some discussion and + * thought, I've changed the behavior of the methods to throw java.io.IOExceptions + * rather than return null if ever there's an error. I think this is more + * appropriate, though it will require some changes to your code. Sorry, + * it should have been done this way to begin with.
      • + *
    • Removed all references to System.out, System.err, and the like. + * Shame on me. All I can say is sorry they were ever there.
      • + *
    • Throws NullPointerExceptions and IllegalArgumentExceptions as needed + * such as when passed arrays are null or offsets are invalid.
      • + *
    • Cleaned up as much javadoc as I could to avoid any javadoc warnings. + * This was especially annoying before for people who were thorough in their + * own projects and then had gobs of javadoc warnings on this file.
      • + *
    + *
  • v2.2.1 - Fixed bug using URL_SAFE and ORDERED encodings. Fixed bug + * when using very small files (~< 40 bytes).
    • + *
  • v2.2 - Added some helper methods for encoding/decoding directly from + * one file to the next. Also added a main() method to support command line + * encoding/decoding from one file to the next. Also added these Base64 dialects: + *
      + *
    1. The default is RFC3548 format.
      2. + *
    2. Calling Base64.setFormat(Base64.BASE64_FORMAT.URLSAFE_FORMAT) generates + * URL and file name friendly format as described in Section 4 of RFC3548. + * http://www.faqs.org/rfcs/rfc3548.html
      3. + *
    3. Calling Base64.setFormat(Base64.BASE64_FORMAT.ORDERED_FORMAT) generates + * URL and file name friendly format that preserves lexical ordering as described + * in http://www.faqs.org/qa/rfcc-1940.html
      4. + *
    + * Special thanks to Jim Kellerman at http://www.powerset.com/ + * for contributing the new Base64 dialects. + *
    • + *

    + *

  • v2.1 - Cleaned up javadoc comments and unused variables and methods. Added + * some convenience methods for reading and writing to and from files.
    • + *
  • v2.0.2 - Now specifies UTF-8 encoding in places where the code fails on systems + * with other encodings (like EBCDIC).
    • + *
  • v2.0.1 - Fixed an error when decoding a single byte, that is, when the + * encoded data was a single byte.
    • + *
  • v2.0 - I got rid of methods that used booleans to set options. + * Now everything is more consolidated and cleaner. The code now detects + * when data that's being decoded is gzip-compressed and will decompress it + * automatically. Generally things are cleaner. You'll probably have to + * change some method calls that you were making to support the new + * options format (ints that you "OR" together).
    • + *
  • v1.5.1 - Fixed bug when decompressing and decoding to a + * byte[] using decode( String s, boolean gzipCompressed ). + * Added the ability to "suspend" encoding in the Output Stream so + * you can turn on and off the encoding if you need to embed base64 + * data in an otherwise "normal" stream (like an XML file).
    • + *
  • v1.5 - Output stream pases on flush() command but doesn't do anything itself. + * This helps when using GZIP streams. + * Added the ability to GZip-compress objects before encoding them.
    • + *
  • v1.4 - Added helper methods to read/write files.
    • + *
  • v1.3.6 - Fixed OutputStream.flush() so that 'position' is reset.
    • + *
  • v1.3.5 - Added flag to turn on and off line breaks. Fixed bug in input stream + * where last buffer being read, if not completely full, was not returned.
    • + *
  • v1.3.4 - Fixed when "improperly padded stream" error was thrown at the wrong time.
    • + *
  • v1.3.3 - Fixed I/O streams which were totally messed up.
    • + *
+ *

+ *

+ * I am placing this code in the Public Domain. Do with it as you will. + * This software comes with no guarantees or warranties but with + * plenty of well-wishing instead! + * Please visit http://iharder.net/base64 + * periodically to check for updates or to contribute improvements. + *

+ * + * @author Robert Harder + * @author rob@iharder.net + * @version 2.3.3 + */ +public class Base64 { + +/* ******** P U B L I C F I E L D S ******** */ + + + /** + * No options specified. Value is zero. + */ + public final static int NO_OPTIONS = 0; + + /** + * Specify encoding in first bit. Value is one. + */ + public final static int ENCODE = 1; + + + /** + * Specify decoding in first bit. Value is zero. + */ + public final static int DECODE = 0; + + + /** + * Specify that data should be gzip-compressed in second bit. Value is two. + */ + public final static int GZIP = 2; + + /** + * Specify that gzipped data should not be automatically gunzipped. + */ + public final static int DONT_GUNZIP = 4; + + + /** + * Do break lines when encoding. Value is 8. + */ + public final static int DO_BREAK_LINES = 8; + + /** + * Encode using Base64-like encoding that is URL- and Filename-safe as described + * in Section 4 of RFC3548: + * http://www.faqs.org/rfcs/rfc3548.html. + * It is important to note that data encoded this way is not officially valid Base64, + * or at the very least should not be called Base64 without also specifying that is + * was encoded using the URL- and Filename-safe dialect. + */ + public final static int URL_SAFE = 16; + + + /** + * Encode using the special "ordered" dialect of Base64 described here: + * http://www.faqs.org/qa/rfcc-1940.html. + */ + public final static int ORDERED = 32; + + +/* ******** P R I V A T E F I E L D S ******** */ + + + /** + * Maximum line length (76) of Base64 output. + */ + private final static int MAX_LINE_LENGTH = 76; + + + /** + * The equals sign (=) as a byte. + */ + private final static byte EQUALS_SIGN = (byte) '='; + + + /** + * The new line character (\n) as a byte. + */ + private final static byte NEW_LINE = (byte) '\n'; + + + /** + * Preferred encoding. + */ + private final static String PREFERRED_ENCODING = "US-ASCII"; + + + private final static byte WHITE_SPACE_ENC = -5; // Indicates white space in encoding + private final static byte EQUALS_SIGN_ENC = -1; // Indicates equals sign in encoding + + +/* ******** S T A N D A R D B A S E 6 4 A L P H A B E T ******** */ + + /** + * The 64 valid Base64 values. + */ + /* Host platform me be something funny like EBCDIC, so we hardcode these values. */ + private final static byte[] _STANDARD_ALPHABET = { + (byte) 'A', (byte) 'B', (byte) 'C', (byte) 'D', (byte) 'E', (byte) 'F', (byte) 'G', + (byte) 'H', (byte) 'I', (byte) 'J', (byte) 'K', (byte) 'L', (byte) 'M', (byte) 'N', + (byte) 'O', (byte) 'P', (byte) 'Q', (byte) 'R', (byte) 'S', (byte) 'T', (byte) 'U', + (byte) 'V', (byte) 'W', (byte) 'X', (byte) 'Y', (byte) 'Z', + (byte) 'a', (byte) 'b', (byte) 'c', (byte) 'd', (byte) 'e', (byte) 'f', (byte) 'g', + (byte) 'h', (byte) 'i', (byte) 'j', (byte) 'k', (byte) 'l', (byte) 'm', (byte) 'n', + (byte) 'o', (byte) 'p', (byte) 'q', (byte) 'r', (byte) 's', (byte) 't', (byte) 'u', + (byte) 'v', (byte) 'w', (byte) 'x', (byte) 'y', (byte) 'z', + (byte) '0', (byte) '1', (byte) '2', (byte) '3', (byte) '4', (byte) '5', + (byte) '6', (byte) '7', (byte) '8', (byte) '9', (byte) '+', (byte) '/' + }; + + + /** + * Translates a Base64 value to either its 6-bit reconstruction value + * or a negative number indicating some other meaning. + */ + private final static byte[] _STANDARD_DECODABET = { + -9, -9, -9, -9, -9, -9, -9, -9, -9, // Decimal 0 - 8 + -5, -5, // Whitespace: Tab and Linefeed + -9, -9, // Decimal 11 - 12 + -5, // Whitespace: Carriage Return + -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, // Decimal 14 - 26 + -9, -9, -9, -9, -9, // Decimal 27 - 31 + -5, // Whitespace: Space + -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, // Decimal 33 - 42 + 62, // Plus sign at decimal 43 + -9, -9, -9, // Decimal 44 - 46 + 63, // Slash at decimal 47 + 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, // Numbers zero through nine + -9, -9, -9, // Decimal 58 - 60 + -1, // Equals sign at decimal 61 + -9, -9, -9, // Decimal 62 - 64 + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, // Letters 'A' through 'N' + 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, // Letters 'O' through 'Z' + -9, -9, -9, -9, -9, -9, // Decimal 91 - 96 + 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, // Letters 'a' through 'm' + 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, // Letters 'n' through 'z' + -9, -9, -9, -9 // Decimal 123 - 126 + /*,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 127 - 139 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 140 - 152 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 153 - 165 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 166 - 178 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 179 - 191 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 192 - 204 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 205 - 217 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 218 - 230 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 231 - 243 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9 // Decimal 244 - 255 */ + }; + + +/* ******** U R L S A F E B A S E 6 4 A L P H A B E T ******** */ + + /** + * Used in the URL- and Filename-safe dialect described in Section 4 of RFC3548: + * http://www.faqs.org/rfcs/rfc3548.html. + * Notice that the last two bytes become "hyphen" and "underscore" instead of "plus" and "slash." + */ + private final static byte[] _URL_SAFE_ALPHABET = { + (byte) 'A', (byte) 'B', (byte) 'C', (byte) 'D', (byte) 'E', (byte) 'F', (byte) 'G', + (byte) 'H', (byte) 'I', (byte) 'J', (byte) 'K', (byte) 'L', (byte) 'M', (byte) 'N', + (byte) 'O', (byte) 'P', (byte) 'Q', (byte) 'R', (byte) 'S', (byte) 'T', (byte) 'U', + (byte) 'V', (byte) 'W', (byte) 'X', (byte) 'Y', (byte) 'Z', + (byte) 'a', (byte) 'b', (byte) 'c', (byte) 'd', (byte) 'e', (byte) 'f', (byte) 'g', + (byte) 'h', (byte) 'i', (byte) 'j', (byte) 'k', (byte) 'l', (byte) 'm', (byte) 'n', + (byte) 'o', (byte) 'p', (byte) 'q', (byte) 'r', (byte) 's', (byte) 't', (byte) 'u', + (byte) 'v', (byte) 'w', (byte) 'x', (byte) 'y', (byte) 'z', + (byte) '0', (byte) '1', (byte) '2', (byte) '3', (byte) '4', (byte) '5', + (byte) '6', (byte) '7', (byte) '8', (byte) '9', (byte) '-', (byte) '_' + }; + + /** + * Used in decoding URL- and Filename-safe dialects of Base64. + */ + private final static byte[] _URL_SAFE_DECODABET = { + -9, -9, -9, -9, -9, -9, -9, -9, -9, // Decimal 0 - 8 + -5, -5, // Whitespace: Tab and Linefeed + -9, -9, // Decimal 11 - 12 + -5, // Whitespace: Carriage Return + -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, // Decimal 14 - 26 + -9, -9, -9, -9, -9, // Decimal 27 - 31 + -5, // Whitespace: Space + -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, // Decimal 33 - 42 + -9, // Plus sign at decimal 43 + -9, // Decimal 44 + 62, // Minus sign at decimal 45 + -9, // Decimal 46 + -9, // Slash at decimal 47 + 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, // Numbers zero through nine + -9, -9, -9, // Decimal 58 - 60 + -1, // Equals sign at decimal 61 + -9, -9, -9, // Decimal 62 - 64 + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, // Letters 'A' through 'N' + 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, // Letters 'O' through 'Z' + -9, -9, -9, -9, // Decimal 91 - 94 + 63, // Underscore at decimal 95 + -9, // Decimal 96 + 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, // Letters 'a' through 'm' + 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, // Letters 'n' through 'z' + -9, -9, -9, -9 // Decimal 123 - 126 + /*,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 127 - 139 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 140 - 152 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 153 - 165 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 166 - 178 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 179 - 191 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 192 - 204 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 205 - 217 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 218 - 230 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 231 - 243 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9 // Decimal 244 - 255 */ + }; + + + +/* ******** O R D E R E D B A S E 6 4 A L P H A B E T ******** */ + + /** + * I don't get the point of this technique, but someone requested it, + * and it is described here: + * http://www.faqs.org/qa/rfcc-1940.html. + */ + private final static byte[] _ORDERED_ALPHABET = { + (byte) '-', + (byte) '0', (byte) '1', (byte) '2', (byte) '3', (byte) '4', + (byte) '5', (byte) '6', (byte) '7', (byte) '8', (byte) '9', + (byte) 'A', (byte) 'B', (byte) 'C', (byte) 'D', (byte) 'E', (byte) 'F', (byte) 'G', + (byte) 'H', (byte) 'I', (byte) 'J', (byte) 'K', (byte) 'L', (byte) 'M', (byte) 'N', + (byte) 'O', (byte) 'P', (byte) 'Q', (byte) 'R', (byte) 'S', (byte) 'T', (byte) 'U', + (byte) 'V', (byte) 'W', (byte) 'X', (byte) 'Y', (byte) 'Z', + (byte) '_', + (byte) 'a', (byte) 'b', (byte) 'c', (byte) 'd', (byte) 'e', (byte) 'f', (byte) 'g', + (byte) 'h', (byte) 'i', (byte) 'j', (byte) 'k', (byte) 'l', (byte) 'm', (byte) 'n', + (byte) 'o', (byte) 'p', (byte) 'q', (byte) 'r', (byte) 's', (byte) 't', (byte) 'u', + (byte) 'v', (byte) 'w', (byte) 'x', (byte) 'y', (byte) 'z' + }; + + /** + * Used in decoding the "ordered" dialect of Base64. + */ + private final static byte[] _ORDERED_DECODABET = { + -9, -9, -9, -9, -9, -9, -9, -9, -9, // Decimal 0 - 8 + -5, -5, // Whitespace: Tab and Linefeed + -9, -9, // Decimal 11 - 12 + -5, // Whitespace: Carriage Return + -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, // Decimal 14 - 26 + -9, -9, -9, -9, -9, // Decimal 27 - 31 + -5, // Whitespace: Space + -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, // Decimal 33 - 42 + -9, // Plus sign at decimal 43 + -9, // Decimal 44 + 0, // Minus sign at decimal 45 + -9, // Decimal 46 + -9, // Slash at decimal 47 + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, // Numbers zero through nine + -9, -9, -9, // Decimal 58 - 60 + -1, // Equals sign at decimal 61 + -9, -9, -9, // Decimal 62 - 64 + 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, // Letters 'A' through 'M' + 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, // Letters 'N' through 'Z' + -9, -9, -9, -9, // Decimal 91 - 94 + 37, // Underscore at decimal 95 + -9, // Decimal 96 + 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, // Letters 'a' through 'm' + 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, // Letters 'n' through 'z' + -9, -9, -9, -9 // Decimal 123 - 126 + /*,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 127 - 139 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 140 - 152 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 153 - 165 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 166 - 178 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 179 - 191 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 192 - 204 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 205 - 217 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 218 - 230 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 231 - 243 + -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9 // Decimal 244 - 255 */ + }; + + +/* ******** D E T E R M I N E W H I C H A L H A B E T ******** */ + + + /** + * Returns one of the _SOMETHING_ALPHABET byte arrays depending on + * the options specified. + * It's possible, though silly, to specify ORDERED and URLSAFE + * in which case one of them will be picked, though there is + * no guarantee as to which one will be picked. + */ + private final static byte[] getAlphabet(int options) { + if ((options & URL_SAFE) == URL_SAFE) { + return _URL_SAFE_ALPHABET; + } else if ((options & ORDERED) == ORDERED) { + return _ORDERED_ALPHABET; + } else { + return _STANDARD_ALPHABET; + } + } // end getAlphabet + + + /** + * Returns one of the _SOMETHING_DECODABET byte arrays depending on + * the options specified. + * It's possible, though silly, to specify ORDERED and URL_SAFE + * in which case one of them will be picked, though there is + * no guarantee as to which one will be picked. + */ + private final static byte[] getDecodabet(int options) { + if ((options & URL_SAFE) == URL_SAFE) { + return _URL_SAFE_DECODABET; + } else if ((options & ORDERED) == ORDERED) { + return _ORDERED_DECODABET; + } else { + return _STANDARD_DECODABET; + } + } // end getAlphabet + + + /** + * Defeats instantiation. + */ + private Base64() { + } + + + public static int getEncodedLengthWithoutPadding(int unencodedLength) { + int remainderBytes = unencodedLength % 3; + int paddingBytes = 0; + + if (remainderBytes != 0) + paddingBytes = 3 - remainderBytes; + + return (((int) ((unencodedLength + 2) / 3)) * 4) - paddingBytes; + } + + public static int getEncodedBytesForTarget(int targetSize) { + return ((int) (targetSize * 3)) / 4; + } + + +/* ******** E N C O D I N G M E T H O D S ******** */ + + + /** + * Encodes up to the first three bytes of array threeBytes + * and returns a four-byte array in Base64 notation. + * The actual number of significant bytes in your array is + * given by numSigBytes. + * The array threeBytes needs only be as big as + * numSigBytes. + * Code can reuse a byte array by passing a four-byte array as b4. + * + * @param b4 A reusable byte array to reduce array instantiation + * @param threeBytes the array to convert + * @param numSigBytes the number of significant bytes in your array + * @return four byte array in Base64 notation. + * @since 1.5.1 + */ + private static byte[] encode3to4(byte[] b4, byte[] threeBytes, int numSigBytes, int options) { + encode3to4(threeBytes, 0, numSigBytes, b4, 0, options); + return b4; + } // end encode3to4 + + + /** + *

Encodes up to three bytes of the array source + * and writes the resulting four Base64 bytes to destination. + * The source and destination arrays can be manipulated + * anywhere along their length by specifying + * srcOffset and destOffset. + * This method does not check to make sure your arrays + * are large enough to accomodate srcOffset + 3 for + * the source array or destOffset + 4 for + * the destination array. + * The actual number of significant bytes in your array is + * given by numSigBytes.

+ *

This is the lowest level of the encoding methods with + * all possible parameters.

+ * + * @param source the array to convert + * @param srcOffset the index where conversion begins + * @param numSigBytes the number of significant bytes in your array + * @param destination the array to hold the conversion + * @param destOffset the index where output will be put + * @return the destination array + * @since 1.3 + */ + private static byte[] encode3to4( + byte[] source, int srcOffset, int numSigBytes, + byte[] destination, int destOffset, int options) { + + byte[] ALPHABET = getAlphabet(options); + + // 1 2 3 + // 01234567890123456789012345678901 Bit position + // --------000000001111111122222222 Array position from threeBytes + // --------| || || || | Six bit groups to index ALPHABET + // >>18 >>12 >> 6 >> 0 Right shift necessary + // 0x3f 0x3f 0x3f Additional AND + + // Create buffer with zero-padding if there are only one or two + // significant bytes passed in the array. + // We have to shift left 24 in order to flush out the 1's that appear + // when Java treats a value as negative that is cast from a byte to an int. + int inBuff = (numSigBytes > 0 ? ((source[srcOffset] << 24) >>> 8) : 0) + | (numSigBytes > 1 ? ((source[srcOffset + 1] << 24) >>> 16) : 0) + | (numSigBytes > 2 ? ((source[srcOffset + 2] << 24) >>> 24) : 0); + + switch (numSigBytes) { + case 3: + destination[destOffset] = ALPHABET[(inBuff >>> 18)]; + destination[destOffset + 1] = ALPHABET[(inBuff >>> 12) & 0x3f]; + destination[destOffset + 2] = ALPHABET[(inBuff >>> 6) & 0x3f]; + destination[destOffset + 3] = ALPHABET[(inBuff) & 0x3f]; + return destination; + + case 2: + destination[destOffset] = ALPHABET[(inBuff >>> 18)]; + destination[destOffset + 1] = ALPHABET[(inBuff >>> 12) & 0x3f]; + destination[destOffset + 2] = ALPHABET[(inBuff >>> 6) & 0x3f]; + destination[destOffset + 3] = EQUALS_SIGN; + return destination; + + case 1: + destination[destOffset] = ALPHABET[(inBuff >>> 18)]; + destination[destOffset + 1] = ALPHABET[(inBuff >>> 12) & 0x3f]; + destination[destOffset + 2] = EQUALS_SIGN; + destination[destOffset + 3] = EQUALS_SIGN; + return destination; + + default: + return destination; + } // end switch + } // end encode3to4 + + + /** + * Performs Base64 encoding on the raw ByteBuffer, + * writing it to the encoded ByteBuffer. + * This is an experimental feature. Currently it does not + * pass along any options (such as {@link #DO_BREAK_LINES} + * or {@link #GZIP}. + * + * @param raw input buffer + * @param encoded output buffer + * @since 2.3 + */ + public static void encode(java.nio.ByteBuffer raw, java.nio.ByteBuffer encoded) { + byte[] raw3 = new byte[3]; + byte[] enc4 = new byte[4]; + + while (raw.hasRemaining()) { + int rem = Math.min(3, raw.remaining()); + raw.get(raw3, 0, rem); + Base64.encode3to4(enc4, raw3, rem, Base64.NO_OPTIONS); + encoded.put(enc4); + } // end input remaining + } + + + /** + * Performs Base64 encoding on the raw ByteBuffer, + * writing it to the encoded CharBuffer. + * This is an experimental feature. Currently it does not + * pass along any options (such as {@link #DO_BREAK_LINES} + * or {@link #GZIP}. + * + * @param raw input buffer + * @param encoded output buffer + * @since 2.3 + */ + public static void encode(java.nio.ByteBuffer raw, java.nio.CharBuffer encoded) { + byte[] raw3 = new byte[3]; + byte[] enc4 = new byte[4]; + + while (raw.hasRemaining()) { + int rem = Math.min(3, raw.remaining()); + raw.get(raw3, 0, rem); + Base64.encode3to4(enc4, raw3, rem, Base64.NO_OPTIONS); + for (int i = 0; i < 4; i++) { + encoded.put((char) (enc4[i] & 0xFF)); + } + } // end input remaining + } + + + /** + * Serializes an object and returns the Base64-encoded + * version of that serialized object. + *

+ *

As of v 2.3, if the object + * cannot be serialized or there is another error, + * the method will throw an java.io.IOException. This is new to v2.3! + * In earlier versions, it just returned a null value, but + * in retrospect that's a pretty poor way to handle it.

+ *

+ * The object is not GZip-compressed before being encoded. + * + * @param serializableObject The object to encode + * @return The Base64-encoded object + * @throws java.io.IOException if there is an error + * @throws NullPointerException if serializedObject is null + * @since 1.4 + */ + public static String encodeObject(java.io.Serializable serializableObject) + throws java.io.IOException { + return encodeObject(serializableObject, NO_OPTIONS); + } // end encodeObject + + + /** + * Serializes an object and returns the Base64-encoded + * version of that serialized object. + *

+ *

As of v 2.3, if the object + * cannot be serialized or there is another error, + * the method will throw an java.io.IOException. This is new to v2.3! + * In earlier versions, it just returned a null value, but + * in retrospect that's a pretty poor way to handle it.

+ *

+ * The object is not GZip-compressed before being encoded. + *

+ * Example options:

+     *   GZIP: gzip-compresses object before encoding it.
+     *   DO_BREAK_LINES: break lines at 76 characters
+     *
+ *

+ * Example: encodeObject( myObj, Base64.GZIP ) or + *

+ * Example: encodeObject( myObj, Base64.GZIP | Base64.DO_BREAK_LINES ) + * + * @param serializableObject The object to encode + * @param options Specified options + * @return The Base64-encoded object + * @throws java.io.IOException if there is an error + * @see Base64#GZIP + * @see Base64#DO_BREAK_LINES + * @since 2.0 + */ + public static String encodeObject(java.io.Serializable serializableObject, int options) + throws java.io.IOException { + + if (serializableObject == null) { + throw new NullPointerException("Cannot serialize a null object."); + } // end if: null + + // Streams + java.io.ByteArrayOutputStream baos = null; + java.io.OutputStream b64os = null; + java.util.zip.GZIPOutputStream gzos = null; + java.io.ObjectOutputStream oos = null; + + + try { + // ObjectOutputStream -> (GZIP) -> Base64 -> ByteArrayOutputStream + baos = new java.io.ByteArrayOutputStream(); + b64os = new Base64.OutputStream(baos, ENCODE | options); + if ((options & GZIP) != 0) { + // Gzip + gzos = new java.util.zip.GZIPOutputStream(b64os); + oos = new java.io.ObjectOutputStream(gzos); + } else { + // Not gzipped + oos = new java.io.ObjectOutputStream(b64os); + } + oos.writeObject(serializableObject); + } // end try + catch (java.io.IOException e) { + // Catch it and then throw it immediately so that + // the finally{} block is called for cleanup. + throw e; + } // end catch + finally { + try { + oos.close(); + } catch (Exception e) { + } + try { + gzos.close(); + } catch (Exception e) { + } + try { + b64os.close(); + } catch (Exception e) { + } + try { + baos.close(); + } catch (Exception e) { + } + } // end finally + + // Return value according to relevant encoding. + try { + return new String(baos.toByteArray(), PREFERRED_ENCODING); + } // end try + catch (java.io.UnsupportedEncodingException uue) { + // Fall back to some Java default + return new String(baos.toByteArray()); + } // end catch + + } // end encode + + + /** + * Encodes a byte array into Base64 notation. + * Does not GZip-compress data. + * + * @param source The data to convert + * @return The data in Base64-encoded form + * @throws NullPointerException if source array is null + * @since 1.4 + */ + public static String encodeBytes(byte[] source) { + // Since we're not going to have the GZIP encoding turned on, + // we're not going to have an java.io.IOException thrown, so + // we should not force the user to have to catch it. + String encoded = null; + try { + encoded = encodeBytes(source, 0, source.length, NO_OPTIONS); + } catch (java.io.IOException ex) { + assert false : ex.getMessage(); + } // end catch + assert encoded != null; + return encoded; + } // end encodeBytes + + + public static String encodeBytesWithoutPadding(byte[] source, int offset, int length) { + String encoded = null; + + try { + encoded = encodeBytes(source, offset, length, NO_OPTIONS); + } catch (java.io.IOException ex) { + assert false : ex.getMessage(); + } + + assert encoded != null; + + if (encoded.charAt(encoded.length() - 2) == '=') + return encoded.substring(0, encoded.length() - 2); + else if (encoded.charAt(encoded.length() - 1) == '=') + return encoded.substring(0, encoded.length() - 1); + else return encoded; + + } + + public static String encodeBytesWithoutPadding(byte[] source) { + return encodeBytesWithoutPadding(source, 0, source.length); + } + + + /** + * Encodes a byte array into Base64 notation. + *

+ * Example options:

+     *   GZIP: gzip-compresses object before encoding it.
+     *   DO_BREAK_LINES: break lines at 76 characters
+     *     Note: Technically, this makes your encoding non-compliant.
+     *
+ *

+ * Example: encodeBytes( myData, Base64.GZIP ) or + *

+ * Example: encodeBytes( myData, Base64.GZIP | Base64.DO_BREAK_LINES ) + *

+ *

+ *

As of v 2.3, if there is an error with the GZIP stream, + * the method will throw an java.io.IOException. This is new to v2.3! + * In earlier versions, it just returned a null value, but + * in retrospect that's a pretty poor way to handle it.

+ * + * @param source The data to convert + * @param options Specified options + * @return The Base64-encoded data as a String + * @throws java.io.IOException if there is an error + * @throws NullPointerException if source array is null + * @see Base64#GZIP + * @see Base64#DO_BREAK_LINES + * @since 2.0 + */ + public static String encodeBytes(byte[] source, int options) throws java.io.IOException { + return encodeBytes(source, 0, source.length, options); + } // end encodeBytes + + + /** + * Encodes a byte array into Base64 notation. + * Does not GZip-compress data. + *

+ *

As of v 2.3, if there is an error, + * the method will throw an java.io.IOException. This is new to v2.3! + * In earlier versions, it just returned a null value, but + * in retrospect that's a pretty poor way to handle it.

+ * + * @param source The data to convert + * @param off Offset in array where conversion should begin + * @param len Length of data to convert + * @return The Base64-encoded data as a String + * @throws NullPointerException if source array is null + * @throws IllegalArgumentException if source array, offset, or length are invalid + * @since 1.4 + */ + public static String encodeBytes(byte[] source, int off, int len) { + // Since we're not going to have the GZIP encoding turned on, + // we're not going to have an java.io.IOException thrown, so + // we should not force the user to have to catch it. + String encoded = null; + try { + encoded = encodeBytes(source, off, len, NO_OPTIONS); + } catch (java.io.IOException ex) { + assert false : ex.getMessage(); + } // end catch + assert encoded != null; + return encoded; + } // end encodeBytes + + + /** + * Encodes a byte array into Base64 notation. + *

+ * Example options:

+     *   GZIP: gzip-compresses object before encoding it.
+     *   DO_BREAK_LINES: break lines at 76 characters
+     *     Note: Technically, this makes your encoding non-compliant.
+     *
+ *

+ * Example: encodeBytes( myData, Base64.GZIP ) or + *

+ * Example: encodeBytes( myData, Base64.GZIP | Base64.DO_BREAK_LINES ) + *

+ *

+ *

As of v 2.3, if there is an error with the GZIP stream, + * the method will throw an java.io.IOException. This is new to v2.3! + * In earlier versions, it just returned a null value, but + * in retrospect that's a pretty poor way to handle it.

+ * + * @param source The data to convert + * @param off Offset in array where conversion should begin + * @param len Length of data to convert + * @param options Specified options + * @return The Base64-encoded data as a String + * @throws java.io.IOException if there is an error + * @throws NullPointerException if source array is null + * @throws IllegalArgumentException if source array, offset, or length are invalid + * @see Base64#GZIP + * @see Base64#DO_BREAK_LINES + * @since 2.0 + */ + public static String encodeBytes(byte[] source, int off, int len, int options) throws java.io.IOException { + byte[] encoded = encodeBytesToBytes(source, off, len, options); + + // Return value according to relevant encoding. + try { + return new String(encoded, PREFERRED_ENCODING); + } // end try + catch (java.io.UnsupportedEncodingException uue) { + return new String(encoded); + } // end catch + + } // end encodeBytes + + + /** + * Similar to {@link #encodeBytes(byte[])} but returns + * a byte array instead of instantiating a String. This is more efficient + * if you're working with I/O streams and have large data sets to encode. + * + * @param source The data to convert + * @return The Base64-encoded data as a byte[] (of ASCII characters) + * @throws NullPointerException if source array is null + * @since 2.3.1 + */ + public static byte[] encodeBytesToBytes(byte[] source) { + byte[] encoded = null; + try { + encoded = encodeBytesToBytes(source, 0, source.length, Base64.NO_OPTIONS); + } catch (java.io.IOException ex) { + assert false : "IOExceptions only come from GZipping, which is turned off: " + ex.getMessage(); + } + return encoded; + } + + + /** + * Similar to {@link #encodeBytes(byte[], int, int, int)} but returns + * a byte array instead of instantiating a String. This is more efficient + * if you're working with I/O streams and have large data sets to encode. + * + * @param source The data to convert + * @param off Offset in array where conversion should begin + * @param len Length of data to convert + * @param options Specified options + * @return The Base64-encoded data as a String + * @throws java.io.IOException if there is an error + * @throws NullPointerException if source array is null + * @throws IllegalArgumentException if source array, offset, or length are invalid + * @see Base64#GZIP + * @see Base64#DO_BREAK_LINES + * @since 2.3.1 + */ + public static byte[] encodeBytesToBytes(byte[] source, int off, int len, int options) throws java.io.IOException { + + if (source == null) { + throw new NullPointerException("Cannot serialize a null array."); + } // end if: null + + if (off < 0) { + throw new IllegalArgumentException("Cannot have negative offset: " + off); + } // end if: off < 0 + + if (len < 0) { + throw new IllegalArgumentException("Cannot have length offset: " + len); + } // end if: len < 0 + + if (off + len > source.length) { + throw new IllegalArgumentException( + String.format("Cannot have offset of %d and length of %d with array of length %d", off, len, source.length)); + } // end if: off < 0 + + + // Compress? + if ((options & GZIP) != 0) { + java.io.ByteArrayOutputStream baos = null; + java.util.zip.GZIPOutputStream gzos = null; + Base64.OutputStream b64os = null; + + try { + // GZip -> Base64 -> ByteArray + baos = new java.io.ByteArrayOutputStream(); + b64os = new Base64.OutputStream(baos, ENCODE | options); + gzos = new java.util.zip.GZIPOutputStream(b64os); + + gzos.write(source, off, len); + gzos.close(); + } // end try + catch (java.io.IOException e) { + // Catch it and then throw it immediately so that + // the finally{} block is called for cleanup. + throw e; + } // end catch + finally { + try { + gzos.close(); + } catch (Exception e) { + } + try { + b64os.close(); + } catch (Exception e) { + } + try { + baos.close(); + } catch (Exception e) { + } + } // end finally + + return baos.toByteArray(); + } // end if: compress + + // Else, don't compress. Better not to use streams at all then. + else { + boolean breakLines = (options & DO_BREAK_LINES) > 0; + + //int len43 = len * 4 / 3; + //byte[] outBuff = new byte[ ( len43 ) // Main 4:3 + // + ( (len % 3) > 0 ? 4 : 0 ) // Account for padding + // + (breakLines ? ( len43 / MAX_LINE_LENGTH ) : 0) ]; // New lines + // Try to determine more precisely how big the array needs to be. + // If we get it right, we don't have to do an array copy, and + // we save a bunch of memory. + int encLen = (len / 3) * 4 + (len % 3 > 0 ? 4 : 0); // Bytes needed for actual encoding + if (breakLines) { + encLen += encLen / MAX_LINE_LENGTH; // Plus extra newline characters + } + byte[] outBuff = new byte[encLen]; + + + int d = 0; + int e = 0; + int len2 = len - 2; + int lineLength = 0; + for (; d < len2; d += 3, e += 4) { + encode3to4(source, d + off, 3, outBuff, e, options); + + lineLength += 4; + if (breakLines && lineLength >= MAX_LINE_LENGTH) { + outBuff[e + 4] = NEW_LINE; + e++; + lineLength = 0; + } // end if: end of line + } // en dfor: each piece of array + + if (d < len) { + encode3to4(source, d + off, len - d, outBuff, e, options); + e += 4; + } // end if: some padding needed + + + // Only resize array if we didn't guess it right. + if (e < outBuff.length - 1) { + byte[] finalOut = new byte[e]; + System.arraycopy(outBuff, 0, finalOut, 0, e); + //System.err.println("Having to resize array from " + outBuff.length + " to " + e ); + return finalOut; + } else { + //System.err.println("No need to resize array."); + return outBuff; + } + + } // end else: don't compress + + } // end encodeBytesToBytes + + + + + +/* ******** D E C O D I N G M E T H O D S ******** */ + + + /** + * Decodes four bytes from array source + * and writes the resulting bytes (up to three of them) + * to destination. + * The source and destination arrays can be manipulated + * anywhere along their length by specifying + * srcOffset and destOffset. + * This method does not check to make sure your arrays + * are large enough to accomodate srcOffset + 4 for + * the source array or destOffset + 3 for + * the destination array. + * This method returns the actual number of bytes that + * were converted from the Base64 encoding. + *

This is the lowest level of the decoding methods with + * all possible parameters.

+ * + * @param source the array to convert + * @param srcOffset the index where conversion begins + * @param destination the array to hold the conversion + * @param destOffset the index where output will be put + * @param options alphabet type is pulled from this (standard, url-safe, ordered) + * @return the number of decoded bytes converted + * @throws NullPointerException if source or destination arrays are null + * @throws IllegalArgumentException if srcOffset or destOffset are invalid + * or there is not enough room in the array. + * @since 1.3 + */ + private static int decode4to3( + byte[] source, int srcOffset, + byte[] destination, int destOffset, int options) { + + // Lots of error checking and exception throwing + if (source == null) { + throw new NullPointerException("Source array was null."); + } // end if + if (destination == null) { + throw new NullPointerException("Destination array was null."); + } // end if + if (srcOffset < 0 || srcOffset + 3 >= source.length) { + throw new IllegalArgumentException(String.format( + "Source array with length %d cannot have offset of %d and still process four bytes.", source.length, srcOffset)); + } // end if + if (destOffset < 0 || destOffset + 2 >= destination.length) { + throw new IllegalArgumentException(String.format( + "Destination array with length %d cannot have offset of %d and still store three bytes.", destination.length, destOffset)); + } // end if + + + byte[] DECODABET = getDecodabet(options); + + // Example: Dk== + if (source[srcOffset + 2] == EQUALS_SIGN) { + // Two ways to do the same thing. Don't know which way I like best. + //int outBuff = ( ( DECODABET[ source[ srcOffset ] ] << 24 ) >>> 6 ) + // | ( ( DECODABET[ source[ srcOffset + 1] ] << 24 ) >>> 12 ); + int outBuff = ((DECODABET[source[srcOffset]] & 0xFF) << 18) + | ((DECODABET[source[srcOffset + 1]] & 0xFF) << 12); + + destination[destOffset] = (byte) (outBuff >>> 16); + return 1; + } + + // Example: DkL= + else if (source[srcOffset + 3] == EQUALS_SIGN) { + // Two ways to do the same thing. Don't know which way I like best. + //int outBuff = ( ( DECODABET[ source[ srcOffset ] ] << 24 ) >>> 6 ) + // | ( ( DECODABET[ source[ srcOffset + 1 ] ] << 24 ) >>> 12 ) + // | ( ( DECODABET[ source[ srcOffset + 2 ] ] << 24 ) >>> 18 ); + int outBuff = ((DECODABET[source[srcOffset]] & 0xFF) << 18) + | ((DECODABET[source[srcOffset + 1]] & 0xFF) << 12) + | ((DECODABET[source[srcOffset + 2]] & 0xFF) << 6); + + destination[destOffset] = (byte) (outBuff >>> 16); + destination[destOffset + 1] = (byte) (outBuff >>> 8); + return 2; + } + + // Example: DkLE + else { + // Two ways to do the same thing. Don't know which way I like best. + //int outBuff = ( ( DECODABET[ source[ srcOffset ] ] << 24 ) >>> 6 ) + // | ( ( DECODABET[ source[ srcOffset + 1 ] ] << 24 ) >>> 12 ) + // | ( ( DECODABET[ source[ srcOffset + 2 ] ] << 24 ) >>> 18 ) + // | ( ( DECODABET[ source[ srcOffset + 3 ] ] << 24 ) >>> 24 ); + int outBuff = ((DECODABET[source[srcOffset]] & 0xFF) << 18) + | ((DECODABET[source[srcOffset + 1]] & 0xFF) << 12) + | ((DECODABET[source[srcOffset + 2]] & 0xFF) << 6) + | ((DECODABET[source[srcOffset + 3]] & 0xFF)); + + + destination[destOffset] = (byte) (outBuff >> 16); + destination[destOffset + 1] = (byte) (outBuff >> 8); + destination[destOffset + 2] = (byte) (outBuff); + + return 3; + } + } // end decodeToBytes + + + /** + * Low-level access to decoding ASCII characters in + * the form of a byte array. Ignores GUNZIP option, if + * it's set. This is not generally a recommended method, + * although it is used internally as part of the decoding process. + * Special case: if len = 0, an empty array is returned. Still, + * if you need more speed and reduced memory footprint (and aren't + * gzipping), consider this method. + * + * @param source The Base64 encoded data + * @return decoded data + * @since 2.3.1 + */ + public static byte[] decode(byte[] source) { + byte[] decoded = null; + try { + decoded = decode(source, 0, source.length, Base64.NO_OPTIONS); + } catch (java.io.IOException ex) { + assert false : "IOExceptions only come from GZipping, which is turned off: " + ex.getMessage(); + } + return decoded; + } + + + /** + * Low-level access to decoding ASCII characters in + * the form of a byte array. Ignores GUNZIP option, if + * it's set. This is not generally a recommended method, + * although it is used internally as part of the decoding process. + * Special case: if len = 0, an empty array is returned. Still, + * if you need more speed and reduced memory footprint (and aren't + * gzipping), consider this method. + * + * @param source The Base64 encoded data + * @param off The offset of where to begin decoding + * @param len The length of characters to decode + * @param options Can specify options such as alphabet type to use + * @return decoded data + * @throws java.io.IOException If bogus characters exist in source data + * @since 1.3 + */ + public static byte[] decode(byte[] source, int off, int len, int options) + throws java.io.IOException { + + // Lots of error checking and exception throwing + if (source == null) { + throw new NullPointerException("Cannot decode null source array."); + } // end if + if (off < 0 || off + len > source.length) { + throw new IllegalArgumentException(String.format( + "Source array with length %d cannot have offset of %d and process %d bytes.", source.length, off, len)); + } // end if + + if (len == 0) { + return new byte[0]; + } else if (len < 4) { + throw new IllegalArgumentException( + "Base64-encoded string must have at least four characters, but length specified was " + len); + } // end if + + byte[] DECODABET = getDecodabet(options); + + int len34 = len * 3 / 4; // Estimate on array size + byte[] outBuff = new byte[len34]; // Upper limit on size of output + int outBuffPosn = 0; // Keep track of where we're writing + + byte[] b4 = new byte[4]; // Four byte buffer from source, eliminating white space + int b4Posn = 0; // Keep track of four byte input buffer + int i = 0; // Source array counter + byte sbiCrop = 0; // Low seven bits (ASCII) of input + byte sbiDecode = 0; // Special value from DECODABET + + for (i = off; i < off + len; i++) { // Loop through source + + sbiCrop = (byte) (source[i] & 0x7f); // Only the low seven bits + sbiDecode = DECODABET[sbiCrop]; // Special value + + // White space, Equals sign, or legit Base64 character + // Note the values such as -5 and -9 in the + // DECODABETs at the top of the file. + if (sbiDecode >= WHITE_SPACE_ENC) { + if (sbiDecode >= EQUALS_SIGN_ENC) { + b4[b4Posn++] = sbiCrop; // Save non-whitespace + if (b4Posn > 3) { // Time to decode? + outBuffPosn += decode4to3(b4, 0, outBuff, outBuffPosn, options); + b4Posn = 0; + + // If that was the equals sign, break out of 'for' loop + if (sbiCrop == EQUALS_SIGN) { + break; + } // end if: equals sign + } // end if: quartet built + } // end if: equals sign or better + } // end if: white space, equals sign or better + else { + // There's a bad input character in the Base64 stream. + throw new java.io.IOException(String.format( + "Bad Base64 input character '%c' in array position %d", source[i], i)); + } // end else: + } // each input character + + byte[] out = new byte[outBuffPosn]; + System.arraycopy(outBuff, 0, out, 0, outBuffPosn); + return out; + } // end decode + + + /** + * Decodes data from Base64 notation, automatically + * detecting gzip-compressed data and decompressing it. + * + * @param s the string to decode + * @return the decoded data + * @throws java.io.IOException If there is a problem + * @since 1.4 + */ + public static byte[] decode(String s) throws java.io.IOException { + return decode(s, NO_OPTIONS); + } + + + public static byte[] decodeWithoutPadding(String source) throws java.io.IOException { + int padding = source.length() % 4; + + if (padding == 1) source = source + "="; + else if (padding == 2) source = source + "=="; + else if (padding == 3) source = source + "="; + + return decode(source); + } + + + /** + * Decodes data from Base64 notation, automatically + * detecting gzip-compressed data and decompressing it. + * + * @param s the string to decode + * @param options encode options such as URL_SAFE + * @return the decoded data + * @throws java.io.IOException if there is an error + * @throws NullPointerException if s is null + * @since 1.4 + */ + public static byte[] decode(String s, int options) throws java.io.IOException { + + if (s == null) { + throw new NullPointerException("Input string was null."); + } // end if + + byte[] bytes; + try { + bytes = s.getBytes(PREFERRED_ENCODING); + } // end try + catch (java.io.UnsupportedEncodingException uee) { + bytes = s.getBytes(); + } // end catch + // + + // Decode + bytes = decode(bytes, 0, bytes.length, options); + + // Check to see if it's gzip-compressed + // GZIP Magic Two-Byte Number: 0x8b1f (35615) + boolean dontGunzip = (options & DONT_GUNZIP) != 0; + if ((bytes != null) && (bytes.length >= 4) && (!dontGunzip)) { + + int head = ((int) bytes[0] & 0xff) | ((bytes[1] << 8) & 0xff00); + if (java.util.zip.GZIPInputStream.GZIP_MAGIC == head) { + java.io.ByteArrayInputStream bais = null; + java.util.zip.GZIPInputStream gzis = null; + java.io.ByteArrayOutputStream baos = null; + byte[] buffer = new byte[2048]; + int length = 0; + + try { + baos = new java.io.ByteArrayOutputStream(); + bais = new java.io.ByteArrayInputStream(bytes); + gzis = new java.util.zip.GZIPInputStream(bais); + + while ((length = gzis.read(buffer)) >= 0) { + baos.write(buffer, 0, length); + } // end while: reading input + + // No error? Get new bytes. + bytes = baos.toByteArray(); + + } // end try + catch (java.io.IOException e) { + e.printStackTrace(); + // Just return originally-decoded bytes + } // end catch + finally { + try { + baos.close(); + } catch (Exception e) { + } + try { + gzis.close(); + } catch (Exception e) { + } + try { + bais.close(); + } catch (Exception e) { + } + } // end finally + + } // end if: gzipped + } // end if: bytes.length >= 2 + + return bytes; + } // end decode + + + /** + * Attempts to decode Base64 data and deserialize a Java + * Object within. Returns null if there was an error. + * + * @param encodedObject The Base64 data to decode + * @return The decoded and deserialized object + * @throws NullPointerException if encodedObject is null + * @throws java.io.IOException if there is a general error + * @throws ClassNotFoundException if the decoded object is of a + * class that cannot be found by the JVM + * @since 1.5 + */ + public static Object decodeToObject(String encodedObject) + throws java.io.IOException, java.lang.ClassNotFoundException { + return decodeToObject(encodedObject, NO_OPTIONS, null); + } + + + /** + * Attempts to decode Base64 data and deserialize a Java + * Object within. Returns null if there was an error. + * If loader is not null, it will be the class loader + * used when deserializing. + * + * @param encodedObject The Base64 data to decode + * @param options Various parameters related to decoding + * @param loader Optional class loader to use in deserializing classes. + * @return The decoded and deserialized object + * @throws NullPointerException if encodedObject is null + * @throws java.io.IOException if there is a general error + * @throws ClassNotFoundException if the decoded object is of a + * class that cannot be found by the JVM + * @since 2.3.4 + */ + public static Object decodeToObject( + String encodedObject, int options, final ClassLoader loader) + throws java.io.IOException, java.lang.ClassNotFoundException { + + // Decode and gunzip if necessary + byte[] objBytes = decode(encodedObject, options); + + java.io.ByteArrayInputStream bais = null; + java.io.ObjectInputStream ois = null; + Object obj = null; + + try { + bais = new java.io.ByteArrayInputStream(objBytes); + + // If no custom class loader is provided, use Java's builtin OIS. + if (loader == null) { + ois = new java.io.ObjectInputStream(bais); + } // end if: no loader provided + + // Else make a customized object input stream that uses + // the provided class loader. + else { + ois = new java.io.ObjectInputStream(bais) { + @Override + public Class resolveClass(java.io.ObjectStreamClass streamClass) + throws java.io.IOException, ClassNotFoundException { + Class c = Class.forName(streamClass.getName(), false, loader); + if (c == null) { + return super.resolveClass(streamClass); + } else { + return c; // Class loader knows of this class. + } // end else: not null + } // end resolveClass + }; // end ois + } // end else: no custom class loader + + obj = ois.readObject(); + } // end try + catch (java.io.IOException e) { + throw e; // Catch and throw in order to execute finally{} + } // end catch + catch (java.lang.ClassNotFoundException e) { + throw e; // Catch and throw in order to execute finally{} + } // end catch + finally { + try { + bais.close(); + } catch (Exception e) { + } + try { + ois.close(); + } catch (Exception e) { + } + } // end finally + + return obj; + } // end decodeObject + + + /** + * Convenience method for encoding data to a file. + *

+ *

As of v 2.3, if there is a error, + * the method will throw an java.io.IOException. This is new to v2.3! + * In earlier versions, it just returned false, but + * in retrospect that's a pretty poor way to handle it.

+ * + * @param dataToEncode byte array of data to encode in base64 form + * @param filename Filename for saving encoded data + * @throws java.io.IOException if there is an error + * @throws NullPointerException if dataToEncode is null + * @since 2.1 + */ + public static void encodeToFile(byte[] dataToEncode, String filename) + throws java.io.IOException { + + if (dataToEncode == null) { + throw new NullPointerException("Data to encode was null."); + } // end iff + + Base64.OutputStream bos = null; + try { + bos = new Base64.OutputStream( + new java.io.FileOutputStream(filename), Base64.ENCODE); + bos.write(dataToEncode); + } // end try + catch (java.io.IOException e) { + throw e; // Catch and throw to execute finally{} block + } // end catch: java.io.IOException + finally { + try { + bos.close(); + } catch (Exception e) { + } + } // end finally + + } // end encodeToFile + + + /** + * Convenience method for decoding data to a file. + *

+ *

As of v 2.3, if there is a error, + * the method will throw an java.io.IOException. This is new to v2.3! + * In earlier versions, it just returned false, but + * in retrospect that's a pretty poor way to handle it.

+ * + * @param dataToDecode Base64-encoded data as a string + * @param filename Filename for saving decoded data + * @throws java.io.IOException if there is an error + * @since 2.1 + */ + public static void decodeToFile(String dataToDecode, String filename) + throws java.io.IOException { + + Base64.OutputStream bos = null; + try { + bos = new Base64.OutputStream( + new java.io.FileOutputStream(filename), Base64.DECODE); + bos.write(dataToDecode.getBytes(PREFERRED_ENCODING)); + } // end try + catch (java.io.IOException e) { + throw e; // Catch and throw to execute finally{} block + } // end catch: java.io.IOException + finally { + try { + bos.close(); + } catch (Exception e) { + } + } // end finally + + } // end decodeToFile + + + /** + * Convenience method for reading a base64-encoded + * file and decoding it. + *

+ *

As of v 2.3, if there is a error, + * the method will throw an java.io.IOException. This is new to v2.3! + * In earlier versions, it just returned false, but + * in retrospect that's a pretty poor way to handle it.

+ * + * @param filename Filename for reading encoded data + * @return decoded byte array + * @throws java.io.IOException if there is an error + * @since 2.1 + */ + public static byte[] decodeFromFile(String filename) + throws java.io.IOException { + + byte[] decodedData = null; + Base64.InputStream bis = null; + try { + // Set up some useful variables + java.io.File file = new java.io.File(filename); + byte[] buffer = null; + int length = 0; + int numBytes = 0; + + // Check for size of file + if (file.length() > Integer.MAX_VALUE) { + throw new java.io.IOException("File is too big for this convenience method (" + file.length() + " bytes)."); + } // end if: file too big for int index + buffer = new byte[(int) file.length()]; + + // Open a stream + bis = new Base64.InputStream( + new java.io.BufferedInputStream( + new java.io.FileInputStream(file)), Base64.DECODE); + + // Read until done + while ((numBytes = bis.read(buffer, length, 4096)) >= 0) { + length += numBytes; + } // end while + + // Save in a variable to return + decodedData = new byte[length]; + System.arraycopy(buffer, 0, decodedData, 0, length); + + } // end try + catch (java.io.IOException e) { + throw e; // Catch and release to execute finally{} + } // end catch: java.io.IOException + finally { + try { + bis.close(); + } catch (Exception e) { + } + } // end finally + + return decodedData; + } // end decodeFromFile + + + /** + * Convenience method for reading a binary file + * and base64-encoding it. + *

+ *

As of v 2.3, if there is a error, + * the method will throw an java.io.IOException. This is new to v2.3! + * In earlier versions, it just returned false, but + * in retrospect that's a pretty poor way to handle it.

+ * + * @param filename Filename for reading binary data + * @return base64-encoded string + * @throws java.io.IOException if there is an error + * @since 2.1 + */ + public static String encodeFromFile(String filename) + throws java.io.IOException { + + String encodedData = null; + Base64.InputStream bis = null; + try { + // Set up some useful variables + java.io.File file = new java.io.File(filename); + byte[] buffer = new byte[Math.max((int) (file.length() * 1.4), 40)]; // Need max() for math on small files (v2.2.1) + int length = 0; + int numBytes = 0; + + // Open a stream + bis = new Base64.InputStream( + new java.io.BufferedInputStream( + new java.io.FileInputStream(file)), Base64.ENCODE); + + // Read until done + while ((numBytes = bis.read(buffer, length, 4096)) >= 0) { + length += numBytes; + } // end while + + // Save in a variable to return + encodedData = new String(buffer, 0, length, Base64.PREFERRED_ENCODING); + + } // end try + catch (java.io.IOException e) { + throw e; // Catch and release to execute finally{} + } // end catch: java.io.IOException + finally { + try { + bis.close(); + } catch (Exception e) { + } + } // end finally + + return encodedData; + } // end encodeFromFile + + /** + * Reads infile and encodes it to outfile. + * + * @param infile Input file + * @param outfile Output file + * @throws java.io.IOException if there is an error + * @since 2.2 + */ + public static void encodeFileToFile(String infile, String outfile) + throws java.io.IOException { + + String encoded = Base64.encodeFromFile(infile); + java.io.OutputStream out = null; + try { + out = new java.io.BufferedOutputStream( + new java.io.FileOutputStream(outfile)); + out.write(encoded.getBytes("US-ASCII")); // Strict, 7-bit output. + } // end try + catch (java.io.IOException e) { + throw e; // Catch and release to execute finally{} + } // end catch + finally { + try { + out.close(); + } catch (Exception ex) { + } + } // end finally + } // end encodeFileToFile + + + /** + * Reads infile and decodes it to outfile. + * + * @param infile Input file + * @param outfile Output file + * @throws java.io.IOException if there is an error + * @since 2.2 + */ + public static void decodeFileToFile(String infile, String outfile) + throws java.io.IOException { + + byte[] decoded = Base64.decodeFromFile(infile); + java.io.OutputStream out = null; + try { + out = new java.io.BufferedOutputStream( + new java.io.FileOutputStream(outfile)); + out.write(decoded); + } // end try + catch (java.io.IOException e) { + throw e; // Catch and release to execute finally{} + } // end catch + finally { + try { + out.close(); + } catch (Exception ex) { + } + } // end finally + } // end decodeFileToFile + + + /* ******** I N N E R C L A S S I N P U T S T R E A M ******** */ + + + /** + * A {@link Base64.InputStream} will read data from another + * java.io.InputStream, given in the constructor, + * and encode/decode to/from Base64 notation on the fly. + * + * @see Base64 + * @since 1.3 + */ + public static class InputStream extends java.io.FilterInputStream { + + private boolean encode; // Encoding or decoding + private int position; // Current position in the buffer + private byte[] buffer; // Small buffer holding converted data + private int bufferLength; // Length of buffer (3 or 4) + private int numSigBytes; // Number of meaningful bytes in the buffer + private int lineLength; + private boolean breakLines; // Break lines at less than 80 characters + private int options; // Record options used to create the stream. + private byte[] decodabet; // Local copies to avoid extra method calls + + + /** + * Constructs a {@link Base64.InputStream} in DECODE mode. + * + * @param in the java.io.InputStream from which to read data. + * @since 1.3 + */ + public InputStream(java.io.InputStream in) { + this(in, DECODE); + } // end constructor + + + /** + * Constructs a {@link Base64.InputStream} in + * either ENCODE or DECODE mode. + *

+ * Valid options:

+         *   ENCODE or DECODE: Encode or Decode as data is read.
+         *   DO_BREAK_LINES: break lines at 76 characters
+         *     (only meaningful when encoding)
+         *
+ *

+ * Example: new Base64.InputStream( in, Base64.DECODE ) + * + * @param in the java.io.InputStream from which to read data. + * @param options Specified options + * @see Base64#ENCODE + * @see Base64#DECODE + * @see Base64#DO_BREAK_LINES + * @since 2.0 + */ + public InputStream(java.io.InputStream in, int options) { + + super(in); + this.options = options; // Record for later + this.breakLines = (options & DO_BREAK_LINES) > 0; + this.encode = (options & ENCODE) > 0; + this.bufferLength = encode ? 4 : 3; + this.buffer = new byte[bufferLength]; + this.position = -1; + this.lineLength = 0; + this.decodabet = getDecodabet(options); + } // end constructor + + /** + * Reads enough of the input stream to convert + * to/from Base64 and returns the next byte. + * + * @return next byte + * @since 1.3 + */ + @Override + public int read() throws java.io.IOException { + + // Do we need to get data? + if (position < 0) { + if (encode) { + byte[] b3 = new byte[3]; + int numBinaryBytes = 0; + for (int i = 0; i < 3; i++) { + int b = in.read(); + + // If end of stream, b is -1. + if (b >= 0) { + b3[i] = (byte) b; + numBinaryBytes++; + } else { + break; // out of for loop + } // end else: end of stream + + } // end for: each needed input byte + + if (numBinaryBytes > 0) { + encode3to4(b3, 0, numBinaryBytes, buffer, 0, options); + position = 0; + numSigBytes = 4; + } // end if: got data + else { + return -1; // Must be end of stream + } // end else + } // end if: encoding + + // Else decoding + else { + byte[] b4 = new byte[4]; + int i = 0; + for (i = 0; i < 4; i++) { + // Read four "meaningful" bytes: + int b = 0; + do { + b = in.read(); + } + while (b >= 0 && decodabet[b & 0x7f] <= WHITE_SPACE_ENC); + + if (b < 0) { + break; // Reads a -1 if end of stream + } // end if: end of stream + + b4[i] = (byte) b; + } // end for: each needed input byte + + if (i == 4) { + numSigBytes = decode4to3(b4, 0, buffer, 0, options); + position = 0; + } // end if: got four characters + else if (i == 0) { + return -1; + } // end else if: also padded correctly + else { + // Must have broken out from above. + throw new java.io.IOException("Improperly padded Base64 input."); + } // end + + } // end else: decode + } // end else: get data + + // Got data? + if (position >= 0) { + // End of relevant data? + if ( /*!encode &&*/ position >= numSigBytes) { + return -1; + } // end if: got data + + if (encode && breakLines && lineLength >= MAX_LINE_LENGTH) { + lineLength = 0; + return '\n'; + } // end if + else { + lineLength++; // This isn't important when decoding + // but throwing an extra "if" seems + // just as wasteful. + + int b = buffer[position++]; + + if (position >= bufferLength) { + position = -1; + } // end if: end + + return b & 0xFF; // This is how you "cast" a byte that's + // intended to be unsigned. + } // end else + } // end if: position >= 0 + + // Else error + else { + throw new java.io.IOException("Error in Base64 code reading stream."); + } // end else + } // end read + + + /** + * Calls {@link #read()} repeatedly until the end of stream + * is reached or len bytes are read. + * Returns number of bytes read into array or -1 if + * end of stream is encountered. + * + * @param dest array to hold values + * @param off offset for array + * @param len max number of bytes to read into array + * @return bytes read into array or -1 if end of stream is encountered. + * @since 1.3 + */ + @Override + public int read(byte[] dest, int off, int len) + throws java.io.IOException { + int i; + int b; + for (i = 0; i < len; i++) { + b = read(); + + if (b >= 0) { + dest[off + i] = (byte) b; + } else if (i == 0) { + return -1; + } else { + break; // Out of 'for' loop + } // Out of 'for' loop + } // end for: each byte read + return i; + } // end read + + } // end inner class InputStream + + + + + + + /* ******** I N N E R C L A S S O U T P U T S T R E A M ******** */ + + + /** + * A {@link Base64.OutputStream} will write data to another + * java.io.OutputStream, given in the constructor, + * and encode/decode to/from Base64 notation on the fly. + * + * @see Base64 + * @since 1.3 + */ + public static class OutputStream extends java.io.FilterOutputStream { + + private boolean encode; + private int position; + private byte[] buffer; + private int bufferLength; + private int lineLength; + private boolean breakLines; + private byte[] b4; // Scratch used in a few places + private boolean suspendEncoding; + private int options; // Record for later + private byte[] decodabet; // Local copies to avoid extra method calls + + /** + * Constructs a {@link Base64.OutputStream} in ENCODE mode. + * + * @param out the java.io.OutputStream to which data will be written. + * @since 1.3 + */ + public OutputStream(java.io.OutputStream out) { + this(out, ENCODE); + } // end constructor + + + /** + * Constructs a {@link Base64.OutputStream} in + * either ENCODE or DECODE mode. + *

+ * Valid options:

+         *   ENCODE or DECODE: Encode or Decode as data is read.
+         *   DO_BREAK_LINES: don't break lines at 76 characters
+         *     (only meaningful when encoding)
+         *
+ *

+ * Example: new Base64.OutputStream( out, Base64.ENCODE ) + * + * @param out the java.io.OutputStream to which data will be written. + * @param options Specified options. + * @see Base64#ENCODE + * @see Base64#DECODE + * @see Base64#DO_BREAK_LINES + * @since 1.3 + */ + public OutputStream(java.io.OutputStream out, int options) { + super(out); + this.breakLines = (options & DO_BREAK_LINES) != 0; + this.encode = (options & ENCODE) != 0; + this.bufferLength = encode ? 3 : 4; + this.buffer = new byte[bufferLength]; + this.position = 0; + this.lineLength = 0; + this.suspendEncoding = false; + this.b4 = new byte[4]; + this.options = options; + this.decodabet = getDecodabet(options); + } // end constructor + + + /** + * Writes the byte to the output stream after + * converting to/from Base64 notation. + * When encoding, bytes are buffered three + * at a time before the output stream actually + * gets a write() call. + * When decoding, bytes are buffered four + * at a time. + * + * @param theByte the byte to write + * @since 1.3 + */ + @Override + public void write(int theByte) + throws java.io.IOException { + // Encoding suspended? + if (suspendEncoding) { + this.out.write(theByte); + return; + } // end if: supsended + + // Encode? + if (encode) { + buffer[position++] = (byte) theByte; + if (position >= bufferLength) { // Enough to encode. + + this.out.write(encode3to4(b4, buffer, bufferLength, options)); + + lineLength += 4; + if (breakLines && lineLength >= MAX_LINE_LENGTH) { + this.out.write(NEW_LINE); + lineLength = 0; + } // end if: end of line + + position = 0; + } // end if: enough to output + } // end if: encoding + + // Else, Decoding + else { + // Meaningful Base64 character? + if (decodabet[theByte & 0x7f] > WHITE_SPACE_ENC) { + buffer[position++] = (byte) theByte; + if (position >= bufferLength) { // Enough to output. + + int len = Base64.decode4to3(buffer, 0, b4, 0, options); + out.write(b4, 0, len); + position = 0; + } // end if: enough to output + } // end if: meaningful base64 character + else if (decodabet[theByte & 0x7f] != WHITE_SPACE_ENC) { + throw new java.io.IOException("Invalid character in Base64 data."); + } // end else: not white space either + } // end else: decoding + } // end write + + + /** + * Calls {@link #write(int)} repeatedly until len + * bytes are written. + * + * @param theBytes array from which to read bytes + * @param off offset for array + * @param len max number of bytes to read into array + * @since 1.3 + */ + @Override + public void write(byte[] theBytes, int off, int len) + throws java.io.IOException { + // Encoding suspended? + if (suspendEncoding) { + this.out.write(theBytes, off, len); + return; + } // end if: supsended + + for (int i = 0; i < len; i++) { + write(theBytes[off + i]); + } // end for: each byte written + + } // end write + + + /** + * Method added by PHIL. [Thanks, PHIL. -Rob] + * This pads the buffer without closing the stream. + * + * @throws java.io.IOException if there's an error. + */ + public void flushBase64() throws java.io.IOException { + if (position > 0) { + if (encode) { + out.write(encode3to4(b4, buffer, position, options)); + position = 0; + } // end if: encoding + else { + throw new java.io.IOException("Base64 input not properly padded."); + } // end else: decoding + } // end if: buffer partially full + + } // end flush + + + /** + * Flushes and closes (I think, in the superclass) the stream. + * + * @since 1.3 + */ + @Override + public void close() throws java.io.IOException { + // 1. Ensure that pending characters are written + flushBase64(); + + // 2. Actually close the stream + // Base class both flushes and closes. + super.close(); + + buffer = null; + out = null; + } // end close + + + /** + * Suspends encoding of the stream. + * May be helpful if you need to embed a piece of + * base64-encoded data in a stream. + * + * @throws java.io.IOException if there's an error flushing + * @since 1.5.1 + */ + public void suspendEncoding() throws java.io.IOException { + flushBase64(); + this.suspendEncoding = true; + } // end suspendEncoding + + + /** + * Resumes encoding of the stream. + * May be helpful if you need to embed a piece of + * base64-encoded data in a stream. + * + * @since 1.5.1 + */ + public void resumeEncoding() { + this.suspendEncoding = false; + } // end resumeEncoding + + + } // end inner class OutputStream + + +} // end class Base64 diff --git a/src/main/java/cli/JsonAxolotlStore.java b/src/main/java/cli/JsonAxolotlStore.java new file mode 100644 index 00000000..d260b6b0 --- /dev/null +++ b/src/main/java/cli/JsonAxolotlStore.java @@ -0,0 +1,135 @@ +package cli; + +import org.json.JSONObject; +import org.whispersystems.libaxolotl.*; +import org.whispersystems.libaxolotl.state.AxolotlStore; +import org.whispersystems.libaxolotl.state.PreKeyRecord; +import org.whispersystems.libaxolotl.state.SessionRecord; +import org.whispersystems.libaxolotl.state.SignedPreKeyRecord; + +import java.io.IOException; +import java.util.List; + +public class JsonAxolotlStore implements AxolotlStore { + private final JsonPreKeyStore preKeyStore; + private final JsonSessionStore sessionStore; + private final JsonSignedPreKeyStore signedPreKeyStore; + + private final JsonIdentityKeyStore identityKeyStore; + + public JsonAxolotlStore(JSONObject jsonAxolotl) throws IOException, InvalidKeyException { + this.preKeyStore = new JsonPreKeyStore(jsonAxolotl.getJSONArray("preKeys")); + this.sessionStore = new JsonSessionStore(jsonAxolotl.getJSONArray("sessionStore")); + this.signedPreKeyStore = new JsonSignedPreKeyStore(jsonAxolotl.getJSONArray("signedPreKeyStore")); + this.identityKeyStore = new JsonIdentityKeyStore(jsonAxolotl.getJSONObject("identityKeyStore")); + } + + public JsonAxolotlStore(IdentityKeyPair identityKeyPair, int registrationId) { + preKeyStore = new JsonPreKeyStore(); + sessionStore = new JsonSessionStore(); + signedPreKeyStore = new JsonSignedPreKeyStore(); + this.identityKeyStore = new JsonIdentityKeyStore(identityKeyPair, registrationId); + } + + public JSONObject getJson() { + return new JSONObject().put("preKeys", preKeyStore.getJson()) + .put("sessionStore", sessionStore.getJson()) + .put("signedPreKeyStore", signedPreKeyStore.getJson()) + .put("identityKeyStore", identityKeyStore.getJson()); + } + + @Override + public IdentityKeyPair getIdentityKeyPair() { + return identityKeyStore.getIdentityKeyPair(); + } + + @Override + public int getLocalRegistrationId() { + return identityKeyStore.getLocalRegistrationId(); + } + + @Override + public void saveIdentity(String name, IdentityKey identityKey) { + identityKeyStore.saveIdentity(name, identityKey); + } + + @Override + public boolean isTrustedIdentity(String name, IdentityKey identityKey) { + return identityKeyStore.isTrustedIdentity(name, identityKey); + } + + @Override + public PreKeyRecord loadPreKey(int preKeyId) throws InvalidKeyIdException { + return preKeyStore.loadPreKey(preKeyId); + } + + @Override + public void storePreKey(int preKeyId, PreKeyRecord record) { + preKeyStore.storePreKey(preKeyId, record); + } + + @Override + public boolean containsPreKey(int preKeyId) { + return preKeyStore.containsPreKey(preKeyId); + } + + @Override + public void removePreKey(int preKeyId) { + preKeyStore.removePreKey(preKeyId); + } + + @Override + public SessionRecord loadSession(AxolotlAddress address) { + return sessionStore.loadSession(address); + } + + @Override + public List getSubDeviceSessions(String name) { + return sessionStore.getSubDeviceSessions(name); + } + + @Override + public void storeSession(AxolotlAddress address, SessionRecord record) { + sessionStore.storeSession(address, record); + } + + @Override + public boolean containsSession(AxolotlAddress address) { + return sessionStore.containsSession(address); + } + + @Override + public void deleteSession(AxolotlAddress address) { + sessionStore.deleteSession(address); + } + + @Override + public void deleteAllSessions(String name) { + sessionStore.deleteAllSessions(name); + } + + @Override + public SignedPreKeyRecord loadSignedPreKey(int signedPreKeyId) throws InvalidKeyIdException { + return signedPreKeyStore.loadSignedPreKey(signedPreKeyId); + } + + @Override + public List loadSignedPreKeys() { + return signedPreKeyStore.loadSignedPreKeys(); + } + + @Override + public void storeSignedPreKey(int signedPreKeyId, SignedPreKeyRecord record) { + signedPreKeyStore.storeSignedPreKey(signedPreKeyId, record); + } + + @Override + public boolean containsSignedPreKey(int signedPreKeyId) { + return signedPreKeyStore.containsSignedPreKey(signedPreKeyId); + } + + @Override + public void removeSignedPreKey(int signedPreKeyId) { + signedPreKeyStore.removeSignedPreKey(signedPreKeyId); + } +} diff --git a/src/main/java/cli/JsonIdentityKeyStore.java b/src/main/java/cli/JsonIdentityKeyStore.java new file mode 100644 index 00000000..75e6ba06 --- /dev/null +++ b/src/main/java/cli/JsonIdentityKeyStore.java @@ -0,0 +1,74 @@ +package cli; + +import org.json.JSONArray; +import org.json.JSONObject; +import org.whispersystems.libaxolotl.IdentityKey; +import org.whispersystems.libaxolotl.IdentityKeyPair; +import org.whispersystems.libaxolotl.InvalidKeyException; +import org.whispersystems.libaxolotl.state.IdentityKeyStore; + +import java.io.IOException; +import java.util.HashMap; +import java.util.Map; + +public class JsonIdentityKeyStore implements IdentityKeyStore { + + private final Map trustedKeys = new HashMap<>(); + + private final IdentityKeyPair identityKeyPair; + private final int localRegistrationId; + + public JsonIdentityKeyStore(JSONObject jsonAxolotl) throws IOException, InvalidKeyException { + localRegistrationId = jsonAxolotl.getInt("registrationId"); + identityKeyPair = new IdentityKeyPair(Base64.decode(jsonAxolotl.getString("identityKey"))); + + JSONArray list = jsonAxolotl.getJSONArray("trustedKeys"); + for (int i = 0; i < list.length(); i++) { + JSONObject k = list.getJSONObject(i); + try { + trustedKeys.put(k.getString("name"), new IdentityKey(Base64.decode(k.getString("identityKey")), 0)); + } catch (InvalidKeyException | IOException e) { + System.out.println("Error while decoding key for: " + k.getString("name")); + } + } + } + + public JsonIdentityKeyStore(IdentityKeyPair identityKeyPair, int localRegistrationId) { + this.identityKeyPair = identityKeyPair; + this.localRegistrationId = localRegistrationId; + } + + public JSONObject getJson() { + JSONArray list = new JSONArray(); + for (String name : trustedKeys.keySet()) { + list.put(new JSONObject().put("name", name).put("identityKey", Base64.encodeBytes(trustedKeys.get(name).serialize()))); + } + + JSONObject result = new JSONObject(); + result.put("registrationId", localRegistrationId); + result.put("identityKey", Base64.encodeBytes(identityKeyPair.serialize())); + result.put("trustedKeys", list); + return result; + } + + @Override + public IdentityKeyPair getIdentityKeyPair() { + return identityKeyPair; + } + + @Override + public int getLocalRegistrationId() { + return localRegistrationId; + } + + @Override + public void saveIdentity(String name, IdentityKey identityKey) { + trustedKeys.put(name, identityKey); + } + + @Override + public boolean isTrustedIdentity(String name, IdentityKey identityKey) { + IdentityKey trusted = trustedKeys.get(name); + return (trusted == null || trusted.equals(identityKey)); + } +} diff --git a/src/main/java/cli/JsonPreKeyStore.java b/src/main/java/cli/JsonPreKeyStore.java new file mode 100644 index 00000000..63e7ea77 --- /dev/null +++ b/src/main/java/cli/JsonPreKeyStore.java @@ -0,0 +1,67 @@ +package cli; + +import org.json.JSONArray; +import org.json.JSONObject; +import org.whispersystems.libaxolotl.InvalidKeyIdException; +import org.whispersystems.libaxolotl.state.PreKeyRecord; +import org.whispersystems.libaxolotl.state.PreKeyStore; + +import java.io.IOException; +import java.util.HashMap; +import java.util.Map; + +public class JsonPreKeyStore implements PreKeyStore { + + private final Map store = new HashMap<>(); + + public JsonPreKeyStore() { + + } + + public JsonPreKeyStore(JSONArray list) throws IOException { + for (int i = 0; i < list.length(); i++) { + JSONObject k = list.getJSONObject(i); + try { + store.put(k.getInt("id"), Base64.decode(k.getString("record"))); + } catch (IOException e) { + System.out.println("Error while decoding prekey for: " + k.getString("name")); + } + } + } + + public JSONArray getJson() { + JSONArray result = new JSONArray(); + for (Integer id : store.keySet()) { + result.put(new JSONObject().put("id", id.toString()).put("record", Base64.encodeBytes(store.get(id)))); + } + return result; + } + + @Override + public PreKeyRecord loadPreKey(int preKeyId) throws InvalidKeyIdException { + try { + if (!store.containsKey(preKeyId)) { + throw new InvalidKeyIdException("No such prekeyrecord!"); + } + + return new PreKeyRecord(store.get(preKeyId)); + } catch (IOException e) { + throw new AssertionError(e); + } + } + + @Override + public void storePreKey(int preKeyId, PreKeyRecord record) { + store.put(preKeyId, record.serialize()); + } + + @Override + public boolean containsPreKey(int preKeyId) { + return store.containsKey(preKeyId); + } + + @Override + public void removePreKey(int preKeyId) { + store.remove(preKeyId); + } +} diff --git a/src/main/java/cli/JsonSessionStore.java b/src/main/java/cli/JsonSessionStore.java new file mode 100644 index 00000000..b070334b --- /dev/null +++ b/src/main/java/cli/JsonSessionStore.java @@ -0,0 +1,94 @@ +package cli; + +import org.json.JSONArray; +import org.json.JSONObject; +import org.whispersystems.libaxolotl.AxolotlAddress; +import org.whispersystems.libaxolotl.state.SessionRecord; +import org.whispersystems.libaxolotl.state.SessionStore; + +import java.io.IOException; +import java.util.HashMap; +import java.util.LinkedList; +import java.util.List; +import java.util.Map; + +public class JsonSessionStore implements SessionStore { + + private Map sessions = new HashMap<>(); + + public JsonSessionStore() { + + } + + public JsonSessionStore(JSONArray list) throws IOException { + for (int i = 0; i < list.length(); i++) { + JSONObject k = list.getJSONObject(i); + try { + sessions.put(new AxolotlAddress(k.getString("name"), k.getInt("deviceId")), Base64.decode(k.getString("record"))); + } catch (IOException e) { + System.out.println("Error while decoding prekey for: " + k.getString("name")); + } + } + } + + public JSONArray getJson() { + JSONArray result = new JSONArray(); + for (AxolotlAddress address : sessions.keySet()) { + result.put(new JSONObject().put("name", address.getName()). + put("deviceId", address.getDeviceId()). + put("record", Base64.encodeBytes(sessions.get(address)))); + } + return result; + } + + @Override + public synchronized SessionRecord loadSession(AxolotlAddress remoteAddress) { + try { + if (containsSession(remoteAddress)) { + return new SessionRecord(sessions.get(remoteAddress)); + } else { + return new SessionRecord(); + } + } catch (IOException e) { + throw new AssertionError(e); + } + } + + @Override + public synchronized List getSubDeviceSessions(String name) { + List deviceIds = new LinkedList<>(); + + for (AxolotlAddress key : sessions.keySet()) { + if (key.getName().equals(name) && + key.getDeviceId() != 1) { + deviceIds.add(key.getDeviceId()); + } + } + + return deviceIds; + } + + @Override + public synchronized void storeSession(AxolotlAddress address, SessionRecord record) { + sessions.put(address, record.serialize()); + } + + @Override + public synchronized boolean containsSession(AxolotlAddress address) { + return sessions.containsKey(address); + } + + @Override + public synchronized void deleteSession(AxolotlAddress address) { + sessions.remove(address); + } + + @Override + public synchronized void deleteAllSessions(String name) { + for (AxolotlAddress key : sessions.keySet()) { + if (key.getName().equals(name)) { + sessions.remove(key); + } + } + } +} diff --git a/src/main/java/cli/JsonSignedPreKeyStore.java b/src/main/java/cli/JsonSignedPreKeyStore.java new file mode 100644 index 00000000..000a0aa4 --- /dev/null +++ b/src/main/java/cli/JsonSignedPreKeyStore.java @@ -0,0 +1,84 @@ +package cli; + +import org.json.JSONArray; +import org.json.JSONObject; +import org.whispersystems.libaxolotl.InvalidKeyIdException; +import org.whispersystems.libaxolotl.state.SignedPreKeyRecord; +import org.whispersystems.libaxolotl.state.SignedPreKeyStore; + +import java.io.IOException; +import java.util.HashMap; +import java.util.LinkedList; +import java.util.List; +import java.util.Map; + +public class JsonSignedPreKeyStore implements SignedPreKeyStore { + + private final Map store = new HashMap<>(); + + public JsonSignedPreKeyStore() { + + } + + public JsonSignedPreKeyStore(JSONArray list) throws IOException { + for (int i = 0; i < list.length(); i++) { + JSONObject k = list.getJSONObject(i); + try { + store.put(k.getInt("id"), Base64.decode(k.getString("record"))); + } catch (IOException e) { + System.out.println("Error while decoding prekey for: " + k.getString("name")); + } + } + } + + public JSONArray getJson() { + JSONArray result = new JSONArray(); + for (Integer id : store.keySet()) { + result.put(new JSONObject().put("id", id.toString()).put("record", store.get(id))); + } + return result; + } + + @Override + public SignedPreKeyRecord loadSignedPreKey(int signedPreKeyId) throws InvalidKeyIdException { + try { + if (!store.containsKey(signedPreKeyId)) { + throw new InvalidKeyIdException("No such signedprekeyrecord! " + signedPreKeyId); + } + + return new SignedPreKeyRecord(store.get(signedPreKeyId)); + } catch (IOException e) { + throw new AssertionError(e); + } + } + + @Override + public List loadSignedPreKeys() { + try { + List results = new LinkedList<>(); + + for (byte[] serialized : store.values()) { + results.add(new SignedPreKeyRecord(serialized)); + } + + return results; + } catch (IOException e) { + throw new AssertionError(e); + } + } + + @Override + public void storeSignedPreKey(int signedPreKeyId, SignedPreKeyRecord record) { + store.put(signedPreKeyId, record.serialize()); + } + + @Override + public boolean containsSignedPreKey(int signedPreKeyId) { + return store.containsKey(signedPreKeyId); + } + + @Override + public void removeSignedPreKey(int signedPreKeyId) { + store.remove(signedPreKeyId); + } +} diff --git a/src/main/java/cli/Main.java b/src/main/java/cli/Main.java new file mode 100644 index 00000000..34f07a55 --- /dev/null +++ b/src/main/java/cli/Main.java @@ -0,0 +1,148 @@ +/** + * Copyright (C) 2015 AsamK + *

+ * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + *

+ * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + *

+ * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ +package cli; + +import net.sourceforge.argparse4j.ArgumentParsers; +import net.sourceforge.argparse4j.inf.*; +import org.apache.commons.io.IOUtils; +import org.whispersystems.libaxolotl.InvalidVersionException; +import org.whispersystems.textsecure.api.TextSecureMessageSender; +import org.whispersystems.textsecure.api.crypto.UntrustedIdentityException; +import org.whispersystems.textsecure.api.messages.TextSecureMessage; +import org.whispersystems.textsecure.api.push.TextSecureAddress; + +import java.io.IOException; +import java.security.Security; + +public class Main { + + public static void main(String[] args) { + // Workaround for BKS truststore + Security.insertProviderAt(new org.spongycastle.jce.provider.BouncyCastleProvider(), 1); + + ArgumentParser parser = ArgumentParsers.newArgumentParser("textsecure-cli") + .defaultHelp(true) + .description("Commandline interface for TextSecure."); + Subparsers subparsers = parser.addSubparsers() + .title("subcommands") + .dest("command") + .description("valid subcommands") + .help("additional help"); + Subparser parserRegister = subparsers.addParser("register"); + Subparser parserVerify = subparsers.addParser("verify"); + parserVerify.addArgument("verificationCode") + .help("The verification code you received via sms."); + Subparser parserSend = subparsers.addParser("send"); + parserSend.addArgument("recipient") + .help("Specify the recipients' phone number.") + .nargs("*"); + parserSend.addArgument("-m", "--message") + .help("Specify the message, if missing standard input is used."); + Subparser parserReceive = subparsers.addParser("receive"); + parser.addArgument("-u", "--username") + .required(true) + .help("Specify your phone number, that will be used for verification."); + Namespace ns = null; + try { + ns = parser.parseArgs(args); + } catch (ArgumentParserException e) { + parser.handleError(e); + System.exit(1); + } + + String username = ns.getString("username"); + Manager m = new Manager(username); + if (m.userExists()) { + try { + m.load(); + } catch (Exception e) { + System.out.println("Loading file error: " + e.getMessage()); + System.exit(2); + } + } + switch (ns.getString("command")) { + case "register": + if (!m.userHasKeys()) { + m.createNewIdentity(); + } + try { + m.register(); + } catch (IOException e) { + System.out.println("Request verify error: " + e.getMessage()); + System.exit(3); + } + break; + case "verify": + if (!m.userHasKeys()) { + System.out.println("User has no keys, first call register."); + System.exit(1); + } + if (m.isRegistered()) { + System.out.println("User registration is already verified"); + System.exit(1); + } + try { + m.verifyAccount(ns.getString("verificationCode")); + } catch (IOException e) { + System.out.println("Verify error: " + e.getMessage()); + System.exit(3); + } + break; + case "send": + if (!m.isRegistered()) { + System.out.println("User is not registered."); + System.exit(1); + } + TextSecureMessageSender messageSender = m.getMessageSender(); + String messageText = ns.getString("message"); + if (messageText == null) { + try { + messageText = IOUtils.toString(System.in); + } catch (IOException e) { + System.out.println("Failed to read message from stdin: " + e.getMessage()); + System.exit(1); + } + } + TextSecureMessage message = TextSecureMessage.newBuilder().withBody(messageText).build(); + for (String recipient : ns.getList("recipient")) { + try { + messageSender.sendMessage(new TextSecureAddress(recipient), message); + } catch (UntrustedIdentityException | IOException e) { + System.out.println("Send message: " + e.getMessage()); + } + } + break; + case "receive": + if (!m.isRegistered()) { + System.out.println("User is not registered."); + System.exit(1); + } + try { + message = m.receiveMessage(); + if (message == null) { + System.exit(0); + } else { + System.out.println("Received message: " + message.getBody().get()); + } + } catch (IOException | InvalidVersionException e) { + System.out.println("Receive message: " + e.getMessage()); + } + break; + } + m.save(); + } +} diff --git a/src/main/java/cli/Manager.java b/src/main/java/cli/Manager.java new file mode 100644 index 00000000..97070c97 --- /dev/null +++ b/src/main/java/cli/Manager.java @@ -0,0 +1,181 @@ +/** + * Copyright (C) 2015 AsamK + *

+ * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + *

+ * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + *

+ * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ +package cli; + +import org.apache.commons.io.IOUtils; +import org.json.JSONObject; +import org.whispersystems.libaxolotl.IdentityKeyPair; +import org.whispersystems.libaxolotl.InvalidKeyException; +import org.whispersystems.libaxolotl.InvalidVersionException; +import org.whispersystems.libaxolotl.state.PreKeyRecord; +import org.whispersystems.libaxolotl.state.SignedPreKeyRecord; +import org.whispersystems.libaxolotl.util.KeyHelper; +import org.whispersystems.libaxolotl.util.guava.Optional; +import org.whispersystems.textsecure.api.TextSecureAccountManager; +import org.whispersystems.textsecure.api.TextSecureMessagePipe; +import org.whispersystems.textsecure.api.TextSecureMessageReceiver; +import org.whispersystems.textsecure.api.TextSecureMessageSender; +import org.whispersystems.textsecure.api.crypto.TextSecureCipher; +import org.whispersystems.textsecure.api.messages.TextSecureEnvelope; +import org.whispersystems.textsecure.api.messages.TextSecureMessage; +import org.whispersystems.textsecure.api.push.TrustStore; + +import java.io.*; +import java.nio.file.Path; +import java.util.List; +import java.util.concurrent.TimeUnit; +import java.util.concurrent.TimeoutException; + +public class Manager { + private final static String URL = "https://textsecure-service.whispersystems.org"; + private final static TrustStore TRUST_STORE = new WhisperTrustStore(); + + private final static String settingsPath = System.getProperty("user.home") + "/.config/textsecure"; + + private String username; + private String password; + private String signalingKey; + + private boolean registered = false; + + private JsonAxolotlStore axolotlStore; + TextSecureAccountManager accountManager; + + public Manager(String username) { + this.username = username; + } + + private String getFileName() { + String path = settingsPath + "/data"; + new File(path).mkdirs(); + return path + "/" + username; + } + + public boolean userExists() { + File f = new File(getFileName()); + if (!f.exists() || f.isDirectory()) { + return false; + } + return true; + } + + public boolean userHasKeys() { + return axolotlStore != null; + } + + public void load() throws IOException, InvalidKeyException { + JSONObject in = new JSONObject(IOUtils.toString(new FileInputStream(getFileName()))); + username = in.getString("username"); + password = in.getString("password"); + signalingKey = in.getString("signalingKey"); + axolotlStore = new JsonAxolotlStore(in.getJSONObject("axolotlStore")); + registered = in.getBoolean("registered"); + accountManager = new TextSecureAccountManager(URL, TRUST_STORE, username, password); + } + + public void save() { + String out = new JSONObject().put("username", username) + .put("password", password) + .put("signalingKey", signalingKey) + .put("axolotlStore", axolotlStore.getJson()) + .put("registered", registered).toString(); + try { + OutputStreamWriter writer = new OutputStreamWriter(new FileOutputStream(getFileName())); + writer.write(out); + writer.flush(); + writer.close(); + } catch (Exception e) { + System.out.println("Saving file error: " + e.getMessage()); + return; + } + } + + public void createNewIdentity() { + IdentityKeyPair identityKey = KeyHelper.generateIdentityKeyPair(); + int registrationId = KeyHelper.generateRegistrationId(false); + axolotlStore = new JsonAxolotlStore(identityKey, registrationId); + registered = false; + } + + public boolean isRegistered() { + return registered; + } + + public void register() throws IOException { + password = Util.getSecret(18); + + accountManager = new TextSecureAccountManager(URL, TRUST_STORE, username, password); + + accountManager.requestSmsVerificationCode(); + registered = false; + } + + public void verifyAccount(String verificationCode) throws IOException { + verificationCode = verificationCode.replace("-", ""); + signalingKey = Util.getSecret(52); + accountManager.verifyAccount(verificationCode, signalingKey, false, axolotlStore.getLocalRegistrationId()); + + //accountManager.setGcmId(Optional.of(GoogleCloudMessaging.getInstance(this).register(REGISTRATION_ID))); + registered = true; + int start = 0; + List oneTimePreKeys = KeyHelper.generatePreKeys(start, 100); + PreKeyRecord lastResortKey = KeyHelper.generateLastResortPreKey(); + int signedPreKeyId = 0; + SignedPreKeyRecord signedPreKeyRecord; + try { + signedPreKeyRecord = KeyHelper.generateSignedPreKey(axolotlStore.getIdentityKeyPair(), signedPreKeyId); + } catch (InvalidKeyException e) { + // Should really not happen + System.out.println("invalid key"); + return; + } + accountManager.setPreKeys(axolotlStore.getIdentityKeyPair().getPublicKey(), lastResortKey, signedPreKeyRecord, oneTimePreKeys); + } + + public TextSecureMessageSender getMessageSender() { + return new TextSecureMessageSender(URL, TRUST_STORE, username, password, + axolotlStore, Optional.absent()); + } + + public TextSecureMessage receiveMessage() throws IOException, InvalidVersionException { + TextSecureMessageReceiver messageReceiver = new TextSecureMessageReceiver(URL, TRUST_STORE, username, password, signalingKey); + TextSecureMessagePipe messagePipe = null; + + try { + messagePipe = messageReceiver.createMessagePipe(); + + TextSecureEnvelope envelope; + try { + envelope = messagePipe.read(5, TimeUnit.SECONDS); + } catch (TimeoutException e) { + return null; + } + TextSecureCipher cipher = new TextSecureCipher(axolotlStore); + TextSecureMessage message = null; + try { + message = cipher.decrypt(envelope); + } catch (Exception e) { + // TODO handle all exceptions + e.printStackTrace(); + } + return message; + } finally { + if (messagePipe != null) + messagePipe.shutdown(); + } + } +} diff --git a/src/main/java/cli/Util.java b/src/main/java/cli/Util.java new file mode 100644 index 00000000..36921de2 --- /dev/null +++ b/src/main/java/cli/Util.java @@ -0,0 +1,25 @@ +package cli; + +import java.security.NoSuchAlgorithmException; +import java.security.SecureRandom; + +public class Util { + public static String getSecret(int size) { + byte[] secret = getSecretBytes(size); + return Base64.encodeBytes(secret); + } + + public static byte[] getSecretBytes(int size) { + byte[] secret = new byte[size]; + getSecureRandom().nextBytes(secret); + return secret; + } + + public static SecureRandom getSecureRandom() { + try { + return SecureRandom.getInstance("SHA1PRNG"); + } catch (NoSuchAlgorithmException e) { + throw new AssertionError(e); + } + } +} diff --git a/src/main/java/cli/WhisperTrustStore.java b/src/main/java/cli/WhisperTrustStore.java new file mode 100644 index 00000000..77770946 --- /dev/null +++ b/src/main/java/cli/WhisperTrustStore.java @@ -0,0 +1,20 @@ +package cli; + +import org.whispersystems.textsecure.api.push.TrustStore; + +import java.io.FileInputStream; +import java.io.FileNotFoundException; +import java.io.InputStream; + +public class WhisperTrustStore implements TrustStore { + + @Override + public InputStream getKeyStoreInputStream() { + return cli.WhisperTrustStore.class.getResourceAsStream("whisper.store"); + } + + @Override + public String getKeyStorePassword() { + return "whisper"; + } +} diff --git a/src/main/resources/cli/whisper.store b/src/main/resources/cli/whisper.store new file mode 100644 index 0000000000000000000000000000000000000000..664ca9563ce30963c1481225f08a7e8438a917c2 GIT binary patch literal 1107 zcmZQzU|?imU=VpInV_H0#dv$!H|7tD`ioaY?=z@jU|`?Q$RJpfT2WG*np|3xs+*pi ztDBq%)MC4MWBy8@J_ZKX2t88+O9lq!&jwA*?+u!mt}kF_Vq{|CWa!+byV~o?=OhDO zHcqWJkGAi;jEtT!G^*Hf*=kD50`UdPG(wuQC?=Ep_qXP zNRXX}H#jj*!L2AUFFCU~Ip0v$KpG^@#UtWhkea6uo{?ExkXob=Tv=R_np+H$=Efln zwThXCD+K7NV6dkQ)!LfD15%4 z*Umlv;52>a8D?ejY@fI_j5)TY1#fYCS9oK=5eM6upY-<>FbnRE)4Q5*Kyt79?5q3k zX!9>1uJ5n^k4ZRqrY_CoD1zhH!?6T4lwXDkOd|cSw0pq77@m7iI4WbEhSy@THE$b zNi|w-WHZ4)9we>IB4HrbfL#F(NP#d5s{u13O8kyb$Y#W`|}K!gM;_>0*S!DD+U(oQd=*zOusR=S5@{Nwb;<3G^N(vzasL`C zb{(@+-*kSm(01LNGiqf&1)7{^N`I0+RpidP;3em-Rf??{ed_v0L>_G0dOUsk1HBjhEM!iBdvzfUeMcy~b+0PQK5Z2$lO literal 0 HcmV?d00001