com.google.gitiles.doc.MarkdownConfig.java Source code

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Here is the source code for com.google.gitiles.doc.MarkdownConfig.java

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// Copyright (C) 2016 The Android Open Source Project
//
// 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.google.gitiles.doc;

import com.google.common.base.Strings;
import com.google.common.collect.ImmutableList;
import org.eclipse.jgit.lib.Config;
import org.eclipse.jgit.lib.Config.SectionParser;
import org.eclipse.jgit.util.StringUtils;

public class MarkdownConfig {
    public static final int IMAGE_LIMIT = 256 << 10;

    public static MarkdownConfig get(Config cfg) {
        return cfg.get(CONFIG_PARSER);
    }

    private static SectionParser<MarkdownConfig> CONFIG_PARSER = new SectionParser<MarkdownConfig>() {
        @Override
        public MarkdownConfig parse(Config cfg) {
            return new MarkdownConfig(cfg);
        }
    };

    public final boolean render;
    public final int inputLimit;

    final int imageLimit;
    final String analyticsId;

    private final boolean allowAnyIFrame;
    private final ImmutableList<String> allowIFrame;

    MarkdownConfig(Config cfg) {
        render = cfg.getBoolean("markdown", "render", true);
        inputLimit = cfg.getInt("markdown", "inputLimit", 5 << 20);
        imageLimit = cfg.getInt("markdown", "imageLimit", IMAGE_LIMIT);
        analyticsId = Strings.emptyToNull(cfg.getString("google", null, "analyticsId"));

        String[] f = cfg.getStringList("markdown", null, "allowiframe");
        allowAnyIFrame = f.length == 1 && StringUtils.toBooleanOrNull(f[0]) == Boolean.TRUE;
        if (allowAnyIFrame) {
            allowIFrame = ImmutableList.of();
        } else {
            allowIFrame = ImmutableList.copyOf(f);
        }
    }

    boolean isIFrameAllowed(String src) {
        if (allowAnyIFrame) {
            return true;
        }
        for (String url : allowIFrame) {
            if (url.equals(src) || (url.endsWith("/") && src.startsWith(url))) {
                return true;
            }
        }
        return false;
    }
}