org.eclipse.jgit.http.server
Class ClientVersionUtil

java.lang.Object
  org.eclipse.jgit.http.server.ClientVersionUtil

public class ClientVersionUtil
extends Object

Parses Git client User-Agent strings.

Method Summary

static int	compare(int[] a, int[] b) Compare two version strings for natural ordering.
static boolean	hasChunkedEncodingRequestBug(int[] version, javax.servlet.http.HttpServletRequest request) Check if a Git client has the known chunked request body encoding bug.
static boolean	hasPushStatusBug(int[] version) Check if a Git client has the known push status bug.
static int[]	invalidVersion()
static int[]	parseVersion(String version) Parse a Git client User-Agent header value.
static String	toString(int[] ver) Convert a parsed version back to a string.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

invalidVersion

public static int[] invalidVersion()

Returns:

maximum version array, indicating an invalid version of Git.

parseVersion

public static int[] parseVersion(String version)

Parse a Git client User-Agent header value.

Parameters:

version - git client version string, of the form "git/1.7.9".

Returns:

components of the version string. invalidVersion() if the version string cannot be parsed.

compare

public static int compare(int[] a,
                          int[] b)

Compare two version strings for natural ordering.

Parameters:

a - first parsed version string.

b - second parsed version string.

Returns:

<0 if a is before b; 0 if a equals b; >0 if a is after b.

toString

public static String toString(int[] ver)

Convert a parsed version back to a string.

Parameters:

ver - the parsed version array.

Returns:

a string, e.g. "1.6.6.0".

hasPushStatusBug

public static boolean hasPushStatusBug(int[] version)

Check if a Git client has the known push status bug.

These buggy clients do not display the status report from a failed push over HTTP.

Parameters:

version - parsed version of the Git client software.

Returns:

true if the bug is present.

hasChunkedEncodingRequestBug

public static boolean hasChunkedEncodingRequestBug(int[] version,
                                                   javax.servlet.http.HttpServletRequest request)

Check if a Git client has the known chunked request body encoding bug.

Git 1.7.5 contains a unique bug where chunked requests are malformed. This applies to both fetch and push.

Parameters:

version - parsed version of the Git client software.

request - incoming HTTP request.

Returns:

true if the client has the chunked encoding bug.