| /* |
| * Copyright (C) 2018, Google LLC. and others |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Distribution License v. 1.0 which is available at |
| * https://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| package org.eclipse.jgit.internal.transport.parser; |
| |
| |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.eclipse.jgit.annotations.NonNull; |
| |
| /** |
| * In a push, the client sends a list of commands. The first command |
| * is special, as it can include a list of capabilities at its end. |
| * <p> |
| * For example: |
| * "oid oid name\0cap1 cap cap3" |
| * <p> |
| * Not to be confused with {@link FirstWant}, nor with the first line |
| * of the reference advertisement parsed by |
| * {@code BasePackConnection.readAdvertisedRefs}. |
| * <p> |
| * This class parses the inputted command line and holds the results: |
| * the actual command line and the capabilities. |
| */ |
| public final class FirstCommand { |
| private final String line; |
| private final Map<String, String> capabilities; |
| |
| /** |
| * Parse the first line of a receive-pack request. |
| * |
| * @param line |
| * line from the client. |
| * @return an instance of FirstCommand with capabilities parsed out |
| */ |
| @NonNull |
| public static FirstCommand fromLine(String line) { |
| int nul = line.indexOf('\0'); |
| if (nul < 0) { |
| return new FirstCommand(line, |
| Collections.<String, String> emptyMap()); |
| } |
| String[] splitCapablities = line.substring(nul + 1).split(" "); //$NON-NLS-1$ |
| Map<String, String> options = new HashMap<>(); |
| |
| for (String c : splitCapablities) { |
| int i = c.indexOf("="); //$NON-NLS-1$ |
| if (i != -1) { |
| options.put(c.substring(0, i), c.substring(i + 1)); |
| } else { |
| options.put(c, null); |
| } |
| } |
| |
| return new FirstCommand(line.substring(0, nul), |
| Collections.<String, String> unmodifiableMap(options)); |
| } |
| |
| private FirstCommand(String line, Map<String, String> capabilities) { |
| this.line = line; |
| this.capabilities = capabilities; |
| } |
| |
| /** |
| * Get line |
| * |
| * @return non-capabilities part of the line. |
| */ |
| @NonNull |
| public String getLine() { |
| return line; |
| } |
| |
| /** |
| * Get capabilities |
| * |
| * @return capabilities parsed from the line, as an immutable map. |
| */ |
| @NonNull |
| public Map<String, String> getCapabilities() { |
| return capabilities; |
| } |
| } |