Chrome v1.0版本的 MD5 值为：405851bc70a6a4b73dd62e46c8304601

以下内容为反编译后的 FileApi.java 源代码，内容仅作参考

package com.pengrad.telegrambot.impl;

import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;

public class FileApi {
    public static final String FILE_API = "https://api.telegram.org/file/bot";
    private final String apiUrl;

    public FileApi(String token) {
        this(FILE_API, token);
    }

    public FileApi(String apiUrl, String token) {
        this.apiUrl = apiUrl + token + "/";
    }

    public String getFullFilePath(String filePath) {
        int slash = filePath.lastIndexOf(47) + 1;
        String path = filePath.substring(0, slash);
        String fileName = filePath.substring(slash);
        try {
            return this.apiUrl + path + URLEncoder.encode(fileName, "UTF-8").replace("+", "%20");
        } catch (UnsupportedEncodingException e) {
            return this.apiUrl + filePath;
        }
    }
}