1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
/*
* Juick
* Copyright (C) 2008-2013, Ugnich Anton
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.juick.www;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.juick.server.UserQueries;
import com.juick.www.vk.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.dao.EmptyResultDataAccessException;
import org.springframework.jdbc.core.JdbcTemplate;
import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.net.URLEncoder;
import java.util.UUID;
/**
*
* @author Ugnich Anton
*/
public class VKontakteLogin {
private static final Logger logger = LoggerFactory.getLogger(VKontakteLogin.class);
private static final String VK_APPID = "3544101";
private static final String VK_SECRET = "z2afNI8jA5lIpZ2jsTm1";
private static final String VK_REDIRECT = "http://juick.com/_vklogin";
public VKontakteLogin() {
mapper = new ObjectMapper();
mapper.setSerializationInclusion(JsonInclude.Include.NON_EMPTY);
mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
mapper.setSerializationInclusion(JsonInclude.Include.NON_DEFAULT);
}
private final ObjectMapper mapper;
protected void doGet(JdbcTemplate sql, HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String code = request.getParameter("code");
if (code == null || code.equals("")) {
response.setStatus(HttpServletResponse.SC_MOVED_TEMPORARILY);
response.setHeader("Location", "https://oauth.vk.com/authorize?client_id=" + VK_APPID + "&redirect_uri=" + URLEncoder.encode(VK_REDIRECT, "utf-8") + "&scope=friends,wall,offline&response_type=code");
return;
}
String tokenjson = Utils.fetchURL("https://oauth.vk.com/access_token?client_id=" + VK_APPID + "&redirect_uri=" + URLEncoder.encode(VK_REDIRECT, "utf-8") + "&client_secret=" + VK_SECRET + "&code=" + URLEncoder.encode(code, "utf-8"));
if (tokenjson == null || tokenjson.isEmpty()) {
logger.error("VK TOKEN EMPTY");
response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
return;
}
String token = null;
long vkID = 0;
Token json = mapper.readValue(tokenjson, Token.class);
token = json.getAccessToken();
vkID = json.getUserId();
if (token == null || vkID == 0) {
logger.error("VK TOKEN EMPTY: " + tokenjson);
response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
return;
}
String graph = Utils.fetchURL("https://api.vk.com/method/users.get?uids=" + vkID + "&fields=screen_name&access_token=" + token);
if (graph == null || graph.isEmpty()) {
logger.error("VK GRAPH ERROR");
response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
return;
}
try {
com.juick.www.vk.User jsonUser = mapper.readValue(graph, UsersResponse.class).getUsers().get(0);
String vkName = jsonUser.getFirstName() + " " + jsonUser.getLastName();
String vkLink = jsonUser.getScreenName();
if (vkName == null || vkLink == null || vkName.isEmpty() || vkName.length() == 1 || vkLink.isEmpty()) {
throw new Exception();
}
int uid = getUIDbyVKID(sql, vkID);
if (uid > 0) {
Cookie c = new Cookie("hash", UserQueries.getHashByUID(sql, uid));
c.setMaxAge(50 * 24 * 60 * 60);
response.addCookie(c);
response.setStatus(HttpServletResponse.SC_MOVED_TEMPORARILY);
response.setHeader("Location", "/");
} else {
String loginhash = UUID.randomUUID().toString();
if (!insertDB(sql, vkID, loginhash, token, vkName, vkLink)) {
throw new Exception();
}
response.setStatus(HttpServletResponse.SC_MOVED_TEMPORARILY);
response.setHeader("Location", "/signup?type=vk&hash=" + loginhash);
}
} catch (Exception e) {
logger.error("JSON ERROR", e);
response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
}
}
private int getUIDbyVKID(JdbcTemplate sql, long vkID) {
try {
return sql.queryForObject("SELECT user_id FROM vk WHERE vk_id=? AND user_id IS NOT NULL", Integer.class, vkID);
} catch (EmptyResultDataAccessException e) {
return 0;
}
}
private boolean insertDB(JdbcTemplate sql, long vkID, String loginhash, String token, String vkName, String vkLink) {
return sql.update("INSERT INTO vk(vk_id,loginhash,access_token,vk_name,vk_link) VALUES (?,?,?,?,?)",
vkID, loginhash, token, vkName, vkLink) > 0;
}
}
|
