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README.md
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‎README.md

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# geditor
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A Graph Editor implementing by Spring Boot, Kotlin, Java
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## Introduction
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A Graph Editor implementing by Spring Boot, Kotlin, Java, based on [jgraphx](https://github.com/jgraph/jgraphx).
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## Quick Start
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### Environment requirements
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```
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Java 8
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Maven 3
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```
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### Configuration
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```
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server:
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port: 9999
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management:
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endpoints:
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web:
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exposure:
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include: "*"
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spring:
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groovy:
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template:
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suffix: .groovy
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cache: false
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configuration:
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auto-new-line: true
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auto-indent: true
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```
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Step 1 Clone Code
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```
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git clone https://github.com/to-be-architect/geditor
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```
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Step 2 Run Application
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```
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mvn spring-boot:run
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```
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Step 3 Visit geditor
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http://localhost:9999/
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‎graph-editor-0.0.1-SNAPSHOT.jar

-33.7 MB
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‎src/main/java/com/mxgraph/online/ExportServlet.java

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package com.mxgraph.online;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.beans.factory.annotation.Value;
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import javax.servlet.ServletException;
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*/
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@SuppressWarnings("serial")
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@WebServlet(name = "ExportServlet", urlPatterns = "/export")
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@Slf4j
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public class ExportServlet extends HttpServlet {
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private final String[] supportedServices = {"EXPORT_URL", "PLANTUML_URL", "VSD_CONVERT_URL", "EMF_CONVERT_URL"};
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if (key != null) {
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for (String val : entry.getValue()) {
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response.addHeader(entry.getKey(), val);
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}
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}
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out.flush();
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out.close();
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} catch (Exception e) {
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response.setStatus(
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HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
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e.printStackTrace();
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log.info("", e);
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response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
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}
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}
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* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
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*/
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@Override
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protected void doGet(HttpServletRequest request,
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HttpServletResponse response) throws ServletException, IOException {
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protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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doRequest("GET", request, response);
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}
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/**
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* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
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*/
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@Override
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protected void doPost(HttpServletRequest request,
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HttpServletResponse response) throws ServletException, IOException {
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protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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doRequest("POST", request, response);
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}
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‎src/main/java/com/mxgraph/online/GitHubServlet.java

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*/
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package com.mxgraph.online;
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import java.io.BufferedReader;
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import java.io.DataOutputStream;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.io.OutputStream;
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import java.io.PrintWriter;
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import java.net.HttpURLConnection;
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import java.net.URL;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.io.*;
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import java.net.HttpURLConnection;
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import java.net.URL;
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/**
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* Servlet implementation ProxyServlet
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*/
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@SuppressWarnings("serial")
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public class GitHubServlet extends HttpServlet
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{
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/**
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* Path component under war/ to locate iconfinder_key file.
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*/
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public static final String DEV_CLIENT_SECRET_FILE_PATH = "/WEB-INF/github_dev_client_secret";
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/**
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* Path component under war/ to locate iconfinder_key file.
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*/
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public static final String CLIENT_SECRET_FILE_PATH = "/WEB-INF/github_client_secret";
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/**
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*
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*/
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private static String DEV_CLIENT_SECRET = null;
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/**
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*
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*/
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private static String CLIENT_SECRET = null;
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/**
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* @see HttpServlet#HttpServlet()
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*/
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public GitHubServlet()
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{
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super();
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}
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/**
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* Loads the key.
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*/
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protected void updateKeys()
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{
62-
if (DEV_CLIENT_SECRET == null)
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{
64-
try
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{
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DEV_CLIENT_SECRET = Utils
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.readInputStream(getServletContext()
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.getResourceAsStream(DEV_CLIENT_SECRET_FILE_PATH))
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.replaceAll("\n", "");
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}
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catch (IOException e)
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{
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throw new RuntimeException("Dev client secret path invalid.");
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}
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}
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if (CLIENT_SECRET == null)
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{
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try
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{
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CLIENT_SECRET = Utils
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.readInputStream(getServletContext()
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.getResourceAsStream(CLIENT_SECRET_FILE_PATH))
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.replaceAll("\n", "");
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}
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catch (IOException e)
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{
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throw new RuntimeException("Client secret path invalid.");
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}
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}
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}
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/**
94-
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
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*/
96-
protected void doGet(HttpServletRequest request,
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HttpServletResponse response) throws ServletException, IOException
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{
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String client = request.getParameter("client_id");
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String code = request.getParameter("code");
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updateKeys();
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if (client != null && code != null)
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{
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String secret = client.equals("23bc97120b9035515661") ? DEV_CLIENT_SECRET : CLIENT_SECRET;
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String url = "https://github.com/login/oauth/access_token";
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URL obj = new URL(url);
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HttpURLConnection con = (HttpURLConnection) obj.openConnection();
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con.setRequestMethod("POST");
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con.setRequestProperty("User-Agent", "draw.io");
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String urlParameters = "client_id=" + client + "&client_secret="
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+ secret + "&code=" + code;
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// Send post request
118-
con.setDoOutput(true);
119-
DataOutputStream wr = new DataOutputStream(con.getOutputStream());
120-
wr.writeBytes(urlParameters);
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wr.flush();
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wr.close();
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124-
BufferedReader in = new BufferedReader(
125-
new InputStreamReader(con.getInputStream()));
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String inputLine;
127-
StringBuffer res = new StringBuffer();
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129-
while ((inputLine = in.readLine()) != null)
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{
131-
res.append(inputLine);
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}
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in.close();
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135-
response.setStatus(con.getResponseCode());
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137-
OutputStream out = response.getOutputStream();
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// Creates XML for stencils
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PrintWriter writer = new PrintWriter(out);
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// Writes JavaScript and adds function call with
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// stylesheet and stencils as arguments
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writer.println(res.toString());
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writer.flush();
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writer.close();
148-
}
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else
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{
151-
response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
152-
}
153-
}
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public class GitHubServlet extends HttpServlet {
20+
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/**
22+
* Path component under war/ to locate iconfinder_key file.
23+
*/
24+
public static final String DEV_CLIENT_SECRET_FILE_PATH = "/WEB-INF/github_dev_client_secret";
25+
26+
27+
/**
28+
* Path component under war/ to locate iconfinder_key file.
29+
*/
30+
public static final String CLIENT_SECRET_FILE_PATH = "/WEB-INF/github_client_secret";
31+
32+
/**
33+
*
34+
*/
35+
private static String DEV_CLIENT_SECRET = null;
36+
37+
/**
38+
*
39+
*/
40+
private static String CLIENT_SECRET = null;
41+
42+
/**
43+
* @see HttpServlet#HttpServlet()
44+
*/
45+
public GitHubServlet() {
46+
super();
47+
}
48+
49+
/**
50+
* Loads the key.
51+
*/
52+
protected void updateKeys() {
53+
if (DEV_CLIENT_SECRET == null) {
54+
try {
55+
DEV_CLIENT_SECRET = Utils
56+
.readInputStream(getServletContext()
57+
.getResourceAsStream(DEV_CLIENT_SECRET_FILE_PATH))
58+
.replaceAll("\n", "");
59+
} catch (IOException e) {
60+
throw new RuntimeException("Dev client secret path invalid.");
61+
}
62+
}
63+
64+
if (CLIENT_SECRET == null) {
65+
try {
66+
CLIENT_SECRET = Utils
67+
.readInputStream(getServletContext()
68+
.getResourceAsStream(CLIENT_SECRET_FILE_PATH))
69+
.replaceAll("\n", "");
70+
} catch (IOException e) {
71+
throw new RuntimeException("Client secret path invalid.");
72+
}
73+
}
74+
}
75+
76+
/**
77+
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
78+
*/
79+
protected void doGet(HttpServletRequest request,
80+
HttpServletResponse response) throws ServletException, IOException {
81+
String client = request.getParameter("client_id");
82+
String code = request.getParameter("code");
83+
updateKeys();
84+
85+
if (client != null && code != null) {
86+
String secret = client.equals("23bc97120b9035515661") ? DEV_CLIENT_SECRET : CLIENT_SECRET;
87+
88+
String url = "https://github.com/login/oauth/access_token";
89+
URL obj = new URL(url);
90+
HttpURLConnection con = (HttpURLConnection) obj.openConnection();
91+
92+
con.setRequestMethod("POST");
93+
con.setRequestProperty("User-Agent", "draw.io");
94+
95+
String urlParameters = "client_id=" + client + "&client_secret="
96+
+ secret + "&code=" + code;
97+
98+
// Send post request
99+
con.setDoOutput(true);
100+
DataOutputStream wr = new DataOutputStream(con.getOutputStream());
101+
wr.writeBytes(urlParameters);
102+
wr.flush();
103+
wr.close();
104+
105+
BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
106+
String inputLine;
107+
StringBuffer res = new StringBuffer();
108+
109+
while ((inputLine = in.readLine()) != null) {
110+
res.append(inputLine);
111+
}
112+
in.close();
113+
114+
response.setStatus(con.getResponseCode());
115+
116+
OutputStream out = response.getOutputStream();
117+
118+
// Creates XML for stencils
119+
PrintWriter writer = new PrintWriter(out);
120+
121+
// Writes JavaScript and adds function call with
122+
// stylesheet and stencils as arguments
123+
writer.println(res.toString());
124+
125+
writer.flush();
126+
writer.close();
127+
} else {
128+
response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
129+
}
130+
}
154131

155132
}

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