Initial Commit

.gitignore

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+bin/
+obj/
+
+*.depend
+*.layout
+
+/*.dll
+/*.txt
+/*.exe

.gitmodules

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+[submodule "CurlWrapper"]
+	path = CurlWrapper
+	url = https://github.com/kiritow/CurlWrapper

BaiduNetDiskLinkCheck.cbp

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+<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
+<CodeBlocks_project_file>
+	<FileVersion major="1" minor="6" />
+	<Project>
+		<Option title="BaiduNetDiskLinkCheck" />
+		<Option pch_mode="2" />
+		<Option compiler="gcc" />
+		<Build>
+			<Target title="Debug">
+				<Option output="bin/Debug/BaiduNetDiskLinkCheck" prefix_auto="1" extension_auto="1" />
+				<Option object_output="obj/Debug/" />
+				<Option type="1" />
+				<Option compiler="gcc" />
+				<Compiler>
+					<Add option="-g" />
+				</Compiler>
+			</Target>
+			<Target title="Release">
+				<Option output="bin/Release/BaiduNetDiskLinkCheck" prefix_auto="1" extension_auto="1" />
+				<Option object_output="obj/Release/" />
+				<Option type="1" />
+				<Option compiler="gcc" />
+				<Compiler>
+					<Add option="-O2" />
+				</Compiler>
+				<Linker>
+					<Add option="-s" />
+				</Linker>
+			</Target>
+		</Build>
+		<Compiler>
+			<Add option="-Wall" />
+			<Add option="-fexceptions" />
+			<Add directory="CurlWrapper/include" />
+		</Compiler>
+		<Linker>
+			<Add library="CurlWrapper/lib/x86/libcurl.lib" />
+		</Linker>
+		<Unit filename="CurlWrapper/include/NetworkWrapper.h" />
+		<Unit filename="CurlWrapper/include/curl/curl.h" />
+		<Unit filename="CurlWrapper/include/curl/curlver.h" />
+		<Unit filename="CurlWrapper/include/curl/easy.h" />
+		<Unit filename="CurlWrapper/include/curl/mprintf.h" />
+		<Unit filename="CurlWrapper/include/curl/multi.h" />
+		<Unit filename="CurlWrapper/include/curl/stdcheaders.h" />
+		<Unit filename="CurlWrapper/include/curl/system.h" />
+		<Unit filename="CurlWrapper/include/curl/typecheck-gcc.h" />
+		<Unit filename="CurlWrapper/src/NetworkWrapper.cpp" />
+		<Unit filename="main.cpp" />
+		<Extensions>
+			<code_completion />
+			<envvars />
+			<debugger />
+			<lib_finder disable_auto="1" />
+		</Extensions>
+	</Project>
+</CodeBlocks_project_file>

CurlWrapper

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+Subproject commit cc89db4f21718ad57f5b9eb04f705daaa9cee558

main.cpp

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+#include "NetworkWrapper.h"
+#include "json.hpp"
+#include <vector>
+#include <string>
+#include <iostream>
+#include <fstream>
+using namespace std;
+using namespace nlohmann;
+
+#define USER_AGENT "Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.79 Safari/537.36"
+
+string vastr;
+string unstr;
+vector<string> errdic;
+
+/// Return: -1 Failed, 0 URL broken, 1 URL ok, 2 URL unknown
+int CheckURL(const string& url)
+{
+    string turl=url;
+    string content;
+
+    while(true)
+    {
+        HTTPConnection c;
+        c.setUserAgent(USER_AGENT);
+        c.setURL(turl);
+        c.setDataOutputBuffer(nullptr,0);
+        c.setSSLVerifyHost(false);
+        c.setSSLVerifyPeer(false);
+
+        //cout<<"Performing on "<<turl<<endl;
+
+        if(c.perform()!=0)
+        {
+            return -1;
+        }
+
+        //cout<<"ResponseCode: "<<c.getResponseCode()<<endl;
+
+        if(c.getResponseCode()!=200)
+        {
+            if(c.getResponseCode()==302)
+            {
+                turl=c.getRedirectURL();
+                //cout<<"Redirect to "<<turl<<endl;
+            }
+            else return -1;
+        }
+        else
+        {
+            content=string((char*)c.getDataOutputBuffer(),c.getDataOutputBufferLength());
+            break;
+        }
+    }
+
+    /*
+    do {
+        ofstream ofs("out.txt");
+        ofs<<content<<endl;
+    }while(0);
+    //*/
+
+    if(content.find(vastr)!=string::npos)
+    {
+        return 1;
+    }
+
+    if(content.find(unstr)!=string::npos)
+    {
+        return 2;
+    }
+
+    for(auto& s:errdic)
+    {
+        if(content.find(s)!=string::npos)
+        {
+            return 0;
+        }
+    }
+
+    /// ...
+    return 3;
+}
+
+int main(int argc,char** argv)
+{
+    do{
+        ifstream ifs("strings_utf8.json");
+        string str,tmp;
+        while(getline(ifs,tmp)) str.append(tmp);
+        json j=json::parse(str);
+        vastr=j["ValidContent"];
+        unstr=j["UnknownContent"];
+        for(auto& s:j["ErrorContent"])
+        {
+            errdic.push_back(s["content"].get<string>());
+        }
+    }while(0);
+
+    if(argc==1)
+    {
+        while(true)
+        {
+            cout<<"Please input URL to check:"<<endl;
+            string url;
+            if(getline(cin,url))
+            {
+                cout<< [&](){switch(CheckURL(url)){
+                    case -1:return "Internal Error";
+                    case 0:return "URL Broken";
+                    case 1:return "URL OK";
+                    case 2:return "URL Unknown Status";
+                    default:return "Wrong Status";}}() << endl;
+            }
+            else break;
+        }
+    }
+    else
+    {
+        cout<< [&](){switch(CheckURL(argv[1])){
+            case -1:return "Internal Error";
+            case 0:return "URL Broken";
+            case 1:return "URL OK";
+            case 2:return "URL Unknown Status";
+            default:return "Wrong Status";}}() << endl;
+    }
+}

strings_utf8.json

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+{
+    "ValidContent" : "百度网盘-分享无限制",
+    "ErrorContent" : [
+        {
+            "name":"Link outdated",
+            "content":"<title>百度网盘-链接已失效</title>"
+        },
+        {
+            "name":"Link not exist",
+            "content":"<title>百度网盘-链接不存在</title>"
+        }
+    ],
+    "UnknownContent": "<title>百度网盘 请输入提取密码</title>"
+}