com.gitblit.wicket.pages.PatchPage.java Source code

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Here is the source code for com.gitblit.wicket.pages.PatchPage.java

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/*
 * Copyright 2011 gitblit.com.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.gitblit.wicket.pages;

import org.apache.wicket.request.mapper.parameter.PageParameters;
import org.apache.wicket.markup.html.basic.Label;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;

import com.gitblit.models.RepositoryModel;
import com.gitblit.models.UserModel;
import com.gitblit.utils.DiffUtils;
import com.gitblit.utils.JGitUtils;
import com.gitblit.utils.StringUtils;
import com.gitblit.wicket.CacheControl;
import com.gitblit.wicket.CacheControl.LastModified;
import com.gitblit.wicket.GitBlitWebSession;
import com.gitblit.wicket.WicketUtils;

@CacheControl(LastModified.BOOT)
public class PatchPage extends SessionPage {

    public PatchPage(final PageParameters params) {
        super(params);

        if (params.get("r").isEmpty()) {
            error(getString("gb.repositoryNotSpecified"));
            redirectToInterceptPage(new RepositoriesPage());
        }

        final String repositoryName = WicketUtils.getRepositoryName(params);
        final String baseObjectId = WicketUtils.getBaseObjectId(params);
        final String objectId = WicketUtils.getObject(params);
        final String blobPath = WicketUtils.getPath(params);

        GitBlitWebSession session = GitBlitWebSession.get();
        UserModel user = session.getUser();

        RepositoryModel model = app().repositories().getRepositoryModel(user, repositoryName);
        if (model == null) {
            // user does not have permission
            error(getString("gb.canNotLoadRepository") + " " + repositoryName);
            redirectToInterceptPage(new RepositoriesPage());
            return;
        }

        Repository r = app().repositories().getRepository(repositoryName);
        if (r == null) {
            error(getString("gb.canNotLoadRepository") + " " + repositoryName);
            redirectToInterceptPage(new RepositoriesPage());
            return;
        }

        RevCommit commit = JGitUtils.getCommit(r, objectId);
        if (commit == null) {
            GitBlitWebSession.get().cacheErrorMessage(getString("gb.commitIsNull"));
            redirectToInterceptPage(new RepositoriesPage());
            return;
        }

        RevCommit baseCommit = null;
        if (!StringUtils.isEmpty(baseObjectId)) {
            baseCommit = JGitUtils.getCommit(r, baseObjectId);
        }
        String patch = DiffUtils.getCommitPatch(r, baseCommit, commit, blobPath);
        add(new Label("patchText", patch));
        r.close();
    }

}