James Moger
2015-11-22 ed552ba47c02779c270ffd62841d6d1048dade70
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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.panels;
 
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
 
import javax.servlet.http.HttpServletRequest;
 
import org.apache.wicket.Component;
import org.apache.wicket.RequestCycle;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.image.ContextImage;
import org.apache.wicket.markup.html.panel.Fragment;
import org.apache.wicket.markup.repeater.Item;
import org.apache.wicket.markup.repeater.data.DataView;
import org.apache.wicket.markup.repeater.data.ListDataProvider;
import org.apache.wicket.protocol.http.WebRequest;
import org.apache.wicket.protocol.http.request.WebClientInfo;
 
import com.gitblit.Constants.AccessPermission;
import com.gitblit.Constants.AccessRestrictionType;
import com.gitblit.Keys;
import com.gitblit.models.GitClientApplication;
import com.gitblit.models.RepositoryModel;
import com.gitblit.models.RepositoryUrl;
import com.gitblit.models.UserModel;
import com.gitblit.utils.StringUtils;
import com.gitblit.wicket.ExternalImage;
import com.gitblit.wicket.GitBlitWebSession;
import com.gitblit.wicket.WicketUtils;
 
/**
 * Smart repository url panel which can display multiple Gitblit repository urls
 * and also supports 3rd party app clone links.
 *
 * @author James Moger
 *
 */
public class RepositoryUrlPanel extends BasePanel {
 
    private static final long serialVersionUID = 1L;
 
    private final String externalPermission = "?";
 
    private boolean onlyUrls;
    private UserModel user;
    private RepositoryModel repository;
    private RepositoryUrl primaryUrl;
    private Map<String, String> urlPermissionsMap;
    private Map<AccessRestrictionType, String> accessRestrictionsMap;
 
    public RepositoryUrlPanel(String wicketId, boolean onlyUrls, UserModel user, RepositoryModel repository) {
        super(wicketId);
        this.onlyUrls = onlyUrls;
        this.user = user == null ? UserModel.ANONYMOUS : user;
        this.repository = repository;
        this.urlPermissionsMap = new HashMap<String, String>();
    }
 
    @Override
    protected void onInitialize() {
        super.onInitialize();
 
        HttpServletRequest req = ((WebRequest) getRequest()).getHttpServletRequest();
 
        List<RepositoryUrl> repositoryUrls = app().services().getRepositoryUrls(req, user, repository);
        // grab primary url from the top of the list
        primaryUrl = repositoryUrls.size() == 0 ? null : repositoryUrls.get(0);
 
        boolean canClone = primaryUrl != null && (!primaryUrl.hasPermission() || primaryUrl.permission.atLeast(AccessPermission.CLONE));
 
        if (repositoryUrls.size() == 0 || !canClone) {
            // no urls, nothing to show.
            add(new Label("repositoryUrlPanel").setVisible(false));
            add(new Label("applicationMenusPanel").setVisible(false));
            add(new Label("repositoryIndicators").setVisible(false));
            return;
        }
 
        // display primary url
        add(createPrimaryUrlPanel("repositoryUrlPanel", repository, repositoryUrls));
 
        if (onlyUrls) {
            add(new Label("repositoryIndicators").setVisible(false));
        } else {
            add(createRepositoryIndicators(repository));
        }
 
        boolean allowAppLinks = app().settings().getBoolean(Keys.web.allowAppCloneLinks, true);
        if (onlyUrls || !canClone || !allowAppLinks) {
            // only display the url(s)
            add(new Label("applicationMenusPanel").setVisible(false));
            return;
        }
        // create the git client application menus
        add(createApplicationMenus("applicationMenusPanel", user, repository, repositoryUrls));
    }
 
    public String getPrimaryUrl() {
        return primaryUrl == null ? "" : primaryUrl.url;
    }
 
    protected Fragment createPrimaryUrlPanel(String wicketId, final RepositoryModel repository, List<RepositoryUrl> repositoryUrls) {
 
        Fragment urlPanel = new Fragment(wicketId, "repositoryUrlFragment", this);
        urlPanel.setRenderBodyOnly(true);
 
        if (repositoryUrls.size() == 1) {
            //
            // Single repository url, no dropdown menu
            //
            urlPanel.add(new Label("menu").setVisible(false));
        } else {
            //
            // Multiple repository urls, show url drop down menu
            //
            ListDataProvider<RepositoryUrl> urlsDp = new ListDataProvider<RepositoryUrl>(repositoryUrls);
            DataView<RepositoryUrl> repoUrlMenuItems = new DataView<RepositoryUrl>("repoUrls", urlsDp) {
                private static final long serialVersionUID = 1L;
 
                @Override
                public void populateItem(final Item<RepositoryUrl> item) {
                    RepositoryUrl repoUrl = item.getModelObject();
                    // repository url
                    Fragment fragment = new Fragment("repoUrl", "actionFragment", this);
                    Component content = new Label("content", repoUrl.url).setRenderBodyOnly(true);
                    WicketUtils.setCssClass(content, "commandMenuItem");
                    fragment.add(content);
                    item.add(fragment);
 
                    Label permissionLabel = new Label("permission", repoUrl.hasPermission() ? repoUrl.permission.toString() : externalPermission);
                    WicketUtils.setPermissionClass(permissionLabel, repoUrl.permission);
                    String tooltip = getProtocolPermissionDescription(repository, repoUrl);
                    WicketUtils.setHtmlTooltip(permissionLabel, tooltip);
                    fragment.add(permissionLabel);
                    fragment.add(createCopyFragment(repoUrl.url));
                }
            };
 
            Fragment urlMenuFragment = new Fragment("menu", "urlProtocolMenuFragment", this);
            urlMenuFragment.setRenderBodyOnly(true);
            urlMenuFragment.add(new Label("menuText", getString("gb.url")));
            urlMenuFragment.add(repoUrlMenuItems);
            urlPanel.add(urlMenuFragment);
        }
 
        // access restriction icon and tooltip
        if (repository.isMirror) {
            urlPanel.add(WicketUtils.newImage("accessRestrictionIcon", "mirror_16x16.png",
                    getString("gb.isMirror")));
        } else if (app().services().isServingRepositories()) {
            switch (repository.accessRestriction) {
            case NONE:
                urlPanel.add(WicketUtils.newClearPixel("accessRestrictionIcon").setVisible(false));
                break;
            case PUSH:
                urlPanel.add(WicketUtils.newImage("accessRestrictionIcon", "lock_go_16x16.png",
                        getAccessRestrictions().get(repository.accessRestriction)));
                break;
            case CLONE:
                urlPanel.add(WicketUtils.newImage("accessRestrictionIcon", "lock_pull_16x16.png",
                        getAccessRestrictions().get(repository.accessRestriction)));
                break;
            case VIEW:
                urlPanel.add(WicketUtils.newImage("accessRestrictionIcon", "shield_16x16.png",
                        getAccessRestrictions().get(repository.accessRestriction)));
                break;
            default:
                if (repositoryUrls.size() == 1) {
                    // force left end cap to have some width
                    urlPanel.add(WicketUtils.newBlankIcon("accessRestrictionIcon"));
                } else {
                    urlPanel.add(WicketUtils.newClearPixel("accessRestrictionIcon").setVisible(false));
                }
            }
        } else {
            if (repositoryUrls.size() == 1) {
                // force left end cap to have some width
                urlPanel.add(WicketUtils.newBlankIcon("accessRestrictionIcon"));
            } else {
                urlPanel.add(WicketUtils.newClearPixel("accessRestrictionIcon").setVisible(false));
            }
        }
 
        urlPanel.add(new Label("primaryUrl", primaryUrl.url).setRenderBodyOnly(true));
 
        Label permissionLabel = new Label("primaryUrlPermission", primaryUrl.hasPermission() ? primaryUrl.permission.toString() : externalPermission);
        String tooltip = getProtocolPermissionDescription(repository, primaryUrl);
        WicketUtils.setHtmlTooltip(permissionLabel, tooltip);
        urlPanel.add(permissionLabel);
        urlPanel.add(createCopyFragment(primaryUrl.url));
 
        return urlPanel;
    }
 
    protected Fragment createApplicationMenus(String wicketId, final UserModel user, final RepositoryModel repository, final List<RepositoryUrl> repositoryUrls) {
        final List<GitClientApplication> displayedApps = new ArrayList<GitClientApplication>();
        final String userAgent = ((WebClientInfo) GitBlitWebSession.get().getClientInfo()).getUserAgent();
 
        if (user.canClone(repository)) {
            for (GitClientApplication app : app().gitblit().getClientApplications()) {
                if (app.isActive && app.allowsPlatform(userAgent)) {
                    displayedApps.add(app);
                }
            }
        }
 
        final String baseURL = WicketUtils.getGitblitURL(RequestCycle.get().getRequest());
        ListDataProvider<GitClientApplication> displayedAppsDp = new ListDataProvider<GitClientApplication>(displayedApps);
        DataView<GitClientApplication> appMenus = new DataView<GitClientApplication>("appMenus", displayedAppsDp) {
            private static final long serialVersionUID = 1L;
 
            @Override
            public void populateItem(final Item<GitClientApplication> item) {
                final GitClientApplication clientApp = item.getModelObject();
 
                // filter the urls for the client app
                List<RepositoryUrl> urls = new ArrayList<RepositoryUrl>();
                for (RepositoryUrl repoUrl : repositoryUrls) {
                    if (clientApp.minimumPermission == null || !repoUrl.hasPermission()) {
                        // no minimum permission or untracked permissions, assume it is satisfactory
                        if (clientApp.supportsTransport(repoUrl.url)) {
                            urls.add(repoUrl);
                        }
                    } else if (repoUrl.permission.atLeast(clientApp.minimumPermission)) {
                        // repo url meets minimum permission requirement
                        if (clientApp.supportsTransport(repoUrl.url)) {
                            urls.add(repoUrl);
                        }
                    }
                }
 
                if (urls.size() == 0) {
                    // do not show this app menu because there are no urls
                    item.add(new Label("appMenu").setVisible(false));
                    return;
                }
 
                Fragment appMenu = new Fragment("appMenu", "appMenuFragment", this);
                appMenu.setRenderBodyOnly(true);
                item.add(appMenu);
 
                // menu button
                appMenu.add(new Label("applicationName", clientApp.name));
 
                // application icon
                Component img;
                if (StringUtils.isEmpty(clientApp.icon)) {
                    img = WicketUtils.newClearPixel("applicationIcon").setVisible(false);
                } else {
                    if (clientApp.icon.contains("://")) {
                        // external image
                        img = new ExternalImage("applicationIcon", clientApp.icon);
                    } else {
                        // context image
                        img = WicketUtils.newImage("applicationIcon", clientApp.icon);
                    }
                }
                appMenu.add(img);
 
                // application menu title, may be a link
                if (StringUtils.isEmpty(clientApp.productUrl)) {
                    appMenu.add(new Label("applicationTitle", clientApp.toString()));
                } else {
                    appMenu.add(new LinkPanel("applicationTitle", null, clientApp.toString(), clientApp.productUrl, true));
                }
 
                // brief application description
                if (StringUtils.isEmpty(clientApp.description)) {
                    appMenu.add(new Label("applicationDescription").setVisible(false));
                } else {
                    appMenu.add(new Label("applicationDescription", clientApp.description));
                }
 
                // brief application legal info, copyright, license, etc
                if (StringUtils.isEmpty(clientApp.legal)) {
                    appMenu.add(new Label("applicationLegal").setVisible(false));
                } else {
                    appMenu.add(new Label("applicationLegal", clientApp.legal));
                }
 
                // a nested repeater for all action items
                ListDataProvider<RepositoryUrl> urlsDp = new ListDataProvider<RepositoryUrl>(urls);
                DataView<RepositoryUrl> actionItems = new DataView<RepositoryUrl>("actionItems", urlsDp) {
                    private static final long serialVersionUID = 1L;
 
                    @Override
                    public void populateItem(final Item<RepositoryUrl> repoLinkItem) {
                        RepositoryUrl repoUrl = repoLinkItem.getModelObject();
                        Fragment fragment = new Fragment("actionItem", "actionFragment", this);
                        fragment.add(createPermissionBadge("permission", repoUrl));
 
                        if (!StringUtils.isEmpty(clientApp.cloneUrl)) {
                            // custom registered url
                            String url = substitute(clientApp.cloneUrl, repoUrl.url, baseURL, user.username, repository.name);
                            fragment.add(new LinkPanel("content", "applicationMenuItem", getString("gb.clone") + " " + repoUrl.url, url));
                            repoLinkItem.add(fragment);
                            fragment.add(new Label("copyFunction").setVisible(false));
                        } else if (!StringUtils.isEmpty(clientApp.command)) {
                            // command-line
                            String command = substitute(clientApp.command, repoUrl.url, baseURL, user.username, repository.name);
                            Label content = new Label("content", command);
                            WicketUtils.setCssClass(content, "commandMenuItem");
                            fragment.add(content);
                            repoLinkItem.add(fragment);
 
                            // copy function for command
                            fragment.add(createCopyFragment(command));
                        }
                    }};
                    appMenu.add(actionItems);
            }
        };
 
        Fragment applicationMenus = new Fragment(wicketId, "applicationMenusFragment", this);
        applicationMenus.add(appMenus);
        return applicationMenus;
    }
 
    protected String substitute(String pattern, String repoUrl, String baseUrl, String username, String repository) {
        return pattern.replace("${repoUrl}", repoUrl).replace("${baseUrl}", baseUrl).replace("${username}", username).replace("${repository}", repository);
    }
 
    protected Label createPermissionBadge(String wicketId, RepositoryUrl repoUrl) {
        Label permissionLabel = new Label(wicketId, repoUrl.hasPermission() ? repoUrl.permission.toString() : externalPermission);
        WicketUtils.setPermissionClass(permissionLabel, repoUrl.permission);
        String tooltip = getProtocolPermissionDescription(repository, repoUrl);
        WicketUtils.setHtmlTooltip(permissionLabel, tooltip);
        return permissionLabel;
    }
 
    protected Fragment createCopyFragment(String text) {
        if (app().settings().getBoolean(Keys.web.allowFlashCopyToClipboard, true)) {
            // clippy: flash-based copy & paste
            Fragment copyFragment = new Fragment("copyFunction", "clippyPanel", this);
            String baseUrl = WicketUtils.getGitblitURL(getRequest());
            ShockWaveComponent clippy = new ShockWaveComponent("clippy", baseUrl + "/clippy.swf");
            clippy.setValue("flashVars", "text=" + StringUtils.encodeURL(text));
            copyFragment.add(clippy);
            return copyFragment;
        } else {
            // javascript: manual copy & paste with modal browser prompt dialog
            Fragment copyFragment = new Fragment("copyFunction", "jsPanel", this);
            ContextImage img = WicketUtils.newImage("copyIcon", "clippy.png");
            img.add(new JavascriptTextPrompt("onclick", "Copy to Clipboard (Ctrl+C, Enter)", text));
            copyFragment.add(img);
            return copyFragment;
        }
    }
 
    protected String getProtocolPermissionDescription(RepositoryModel repository,
            RepositoryUrl repoUrl) {
        if (!urlPermissionsMap.containsKey(repoUrl.url)) {
            String note;
            if (repoUrl.hasPermission()) {
                note = null;
                String key;
                switch (repoUrl.permission) {
                case OWNER:
                case REWIND:
                    key = "gb.rewindPermission";
                    break;
                case DELETE:
                    key = "gb.deletePermission";
                    break;
                case CREATE:
                    key = "gb.createPermission";
                    break;
                case PUSH:
                    key = "gb.pushPermission";
                    break;
                case CLONE:
                    key = "gb.clonePermission";
                    break;
                default:
                    key = null;
                    note = getString("gb.viewAccess");
                    break;
                }
 
                if (note == null) {
                    String pattern = getString(key);
                    String description = MessageFormat.format(pattern, repoUrl.permission.toString());
                    note = description;
                }
            } else {
                String protocol;
                int protocolIndex = repoUrl.url.indexOf("://");
                if (protocolIndex > -1) {
                    // explicit protocol specified
                    protocol = repoUrl.url.substring(0, protocolIndex);
                } else {
                    // implicit SSH url
                    protocol = "ssh";
                }
                note = MessageFormat.format(getString("gb.externalPermissions"), protocol);
            }
            urlPermissionsMap.put(repoUrl.url, note);
        }
        return urlPermissionsMap.get(repoUrl.url);
    }
 
    protected Map<AccessRestrictionType, String> getAccessRestrictions() {
        if (accessRestrictionsMap == null) {
            accessRestrictionsMap = new HashMap<AccessRestrictionType, String>();
            for (AccessRestrictionType type : AccessRestrictionType.values()) {
                switch (type) {
                case NONE:
                    accessRestrictionsMap.put(type, getString("gb.notRestricted"));
                    break;
                case PUSH:
                    accessRestrictionsMap.put(type, getString("gb.pushRestricted"));
                    break;
                case CLONE:
                    accessRestrictionsMap.put(type, getString("gb.cloneRestricted"));
                    break;
                case VIEW:
                    accessRestrictionsMap.put(type, getString("gb.viewRestricted"));
                    break;
                }
            }
        }
        return accessRestrictionsMap;
    }
 
    protected Component createRepositoryIndicators(RepositoryModel repository) {
        Fragment fragment = new Fragment("repositoryIndicators", "indicatorsFragment", this);
        if (repository.isBare) {
            fragment.add(new Label("workingCopyIndicator").setVisible(false));
        } else {
            Fragment wc = new Fragment("workingCopyIndicator", "workingCopyFragment", this);
            Label lbl = new Label("workingCopy", getString("gb.workingCopy"));
            WicketUtils.setHtmlTooltip(lbl,  getString("gb.workingCopyWarning"));
            wc.add(lbl);
            fragment.add(wc);
        }
 
        boolean allowForking = app().settings().getBoolean(Keys.web.allowForking, true);
        if (!allowForking || user == null || !user.isAuthenticated) {
            // must be logged-in to fork, hide all fork controls
            fragment.add(new Label("forksProhibitedIndicator").setVisible(false));
        } else {
            String fork = app().repositories().getFork(user.username, repository.name);
            boolean hasFork = fork != null;
            boolean canFork = user.canFork(repository);
 
            if (hasFork || !canFork) {
                if (user.canFork() && !repository.allowForks) {
                    // show forks prohibited indicator
                    Fragment wc = new Fragment("forksProhibitedIndicator", "forksProhibitedFragment", this);
                    Label lbl = new Label("forksProhibited", getString("gb.forksProhibited"));
                    WicketUtils.setHtmlTooltip(lbl,  getString("gb.forksProhibitedWarning"));
                    wc.add(lbl);
                    fragment.add(wc);
                } else {
                    // can not fork, no need for forks prohibited indicator
                    fragment.add(new Label("forksProhibitedIndicator").setVisible(false));
                }
            } else if (canFork) {
                // can fork and we do not have one
                fragment.add(new Label("forksProhibitedIndicator").setVisible(false));
            }
        }
        return fragment;
    }
}