Free picture bed, recommended stable

Here is the recommendation. It has been summarized Free bed point here

It's not easy to use others' worries, and it's not flexible to connect the api. It's mainly to be a station for its own needs

Provide an idea to use onedriver or google driver api to build a free drawing bed

cocook free picture bed

• It doesn't matter what language it is
• With servers, the most basic configuration is OK
• Understand oneDriver api. Now the old api authorization is not easy to use. It is recommended to use the latest one directly
• Register clintid address Registration point here
• api address, mainly authorize (use auth2 latest version) upload and download api point here.
• Because Microsoft has too many APIs, it took two days to complete the docking. It is recommended to use the latest api

Here is the specific process

1. Authorization auth2. Authorization address. What is the endpoint url in Chinese? Just look at this

    public String getAuthUrl(Map<String, String> params0){
        String url = Constants.get("login_url") +"/authorize";
            url += "?client_id=" + Constants.get("client_id");
            url += "&response_type=code";
            url += "&redirect_uri=" + Constants.get("redirect_uri");
            url += "&scope=offline_access%20Files.ReadWrite.All%20Sites.Read.All%20User.Read";

        return url;
    }

2. After obtaining the code, use the code to obtain the access_token, in which the key is required

    public String getToken(Map<String, String> params0){
        String code = params0.get("code");
        String url = Constants.get("login_url") +"/token";
        HashMap<String, String> params = new HashMap<>();
        params.put("client_id", Constants.get("client_id"));
        params.put("redirect_uri", Constants.get("redirect_uri"));
        params.put("client_secret", Constants.get("client_secret"));
        params.put("code", code);
        params.put("grant_type", "authorization_code");
        Map<String, Object> resp =  OKHttpUtil.post(url, params);;
        LogUtil.info("getToken->" + resp);
        String token = (String) resp.get("access_token");
        int expires_in = (int) resp.get("expires_in") ;
        VcodeUtil.timedCache.put("access_token", token, expires_in* 1000);
        String refresh_token = (String) resp.get("refresh_token");
        VcodeUtil.timedCache.put("refresh_token", refresh_token, expires_in* 1000 * 36);
        return token;
    }

3. Refresh access token with refresh token and set cache expiration time

    public String getTokenByCache(Map<String, String> params0){
        String token = (String) VcodeUtil.timedCache.getNotUpLastAccess("access_token");
        if (token != null) {
            return token;
        }

        String refresh_token = (String) VcodeUtil.timedCache.getNotUpLastAccess("refresh_token");
        String url = Constants.get("login_url") +"/token";

        HashMap<String, String> params = new HashMap<>();
        params.put("client_id", Constants.get("client_id"));
        params.put("scope", "offline_access Files.ReadWrite.All Sites.Read.All User.Read");
        params.put("refresh_token", refresh_token);
        params.put("redirect_uri", Constants.get("redirect_uri"));
        params.put("client_secret", Constants.get("client_secret"));
        params.put("grant_type", "refresh_token");
        Map<String, Object> resp =  OKHttpUtil.post(url, params);;
        LogUtil.info("getToken->" + resp);
        token = (String) resp.get("access_token");
        int expires_in = (int) resp.get("expires_in") ;
        VcodeUtil.timedCache.put("access_token", token, expires_in* 1000);
        refresh_token = (String) resp.get("refresh_token");
        VcodeUtil.timedCache.put("refresh_token", refresh_token, expires_in* 1000 * 36);
        return token;
    }

4. Use access_token to upload files. Use simple api. Only 4M files are supported. If it is a large file, use some tools recommended before

    public String upload(String uploadPath, String suffix, ByteArrayOutputStream out) throws Exception{
        byte[] bytes = out.toByteArray();

        long id = MD5.md5_long(bytes);
        Map<String, Object> ins = getIns(id);
        if(!ins.isEmpty()) {
            return (String) ins.get("itemid");
        }

        String date = BaseUtil.getFormatDate().replaceFirst("/", "");
        uploadPath += date;
        String filename = uploadPath + "/" + RandomStringUtils.randomAlphanumeric(6) +"." + suffix;
        //PUT /me/drive/items/{parent-id}:/{filename}:/content
        String url = "https://graph.microsoft.com/v1.0/me/drive/root:" + filename +":/content";
        HttpRequest request = new HttpRequest(url, Method.put);
        request.setContentType("image/jpeg");
        request.addHeader("Authorization", "Bearer " + getTokenByCache(null));
        request.setRequestBody(bytes);
        HttpResponse res =  OKHttpUtil.request(request);
        // The returned id is itemid, which can be used for some operations to save itemid and filePath
        String resStr=  res.getResponseString();
        Map<String, Object> resMap =  (Map<String, Object>) OKHttpUtil.deserialize(resStr);
        String itemid = (String) resMap.get("id");

        return itemid;
    }

5. Download the file using access_token, either using itemid or the file path

String url = "https://graph.microsoft.com/v1.0/me/drive/items/"+itemid+"/content"; // Download by itemid
String url = "https://graph.microsoft.com/v1.0/me/drive/root:" + filepath +":/content"; // According to the document
Look at code, It's annotated, Download address, Preview address, And share address, Concrete realization oneApi, I tested them all
302 jump after successful request, commonly httpclient I can dance by myself, Do not want to jump to find configuration to get Location Address can be viewed

        public Object downLoad(Map<String, String> params) throws Exception{
        String itemid = params.get("id");
//      String url = "https://graph.microsoft.com/v1.0/me/drive/root:" + filepath +":/content"; / / press file strength
//      String url = "https://graph.microsoft.com/v1.0/me/drive/items/01rhkemnksngbohrsdpbhji43lrlm62mv7 / Preview"; / / preview press itemid
//      String url = "https://graph.microsoft.com/v1.0/me/drive/items/01rhkemnksngbohrsdpbhji43lrlm62mv7 / createlink"; / / share by itemid
        String url = "https://graph.microsoft.com/v1.0/me/drive/items/"+itemid+"/content "; / / download by itemid
        HttpRequest request = new HttpRequest(url, Method.get);
        request.addHeader("Authorization", "Bearer " + getTokenByCache(null));
        //request.setContentType("application/json");
        //request.setRequestBody("{\"chromeless\":\"true\"}".getBytes());
        HttpResponse resp =  OKHttpUtil.request(request);
//      System.out.println(resp.getResponseString());
//      System. Out. Println (resp. Getheader ("location")); / / 302 jump to automatically retrieve the image URL
        return resp.getRespInputsStream();
    }

6. It's finished here. Since you have to download it every time, make a browser cache and add cloudflare cdn. It's OK to use