From 8898ad9b25fca6afe2374d293a981db02a83d7e9 Mon Sep 17 00:00:00 2001 From: "FWoltermann@gmail.com" Date: Thu, 31 May 2012 14:46:27 +0000 Subject: Committing the documentation to svn to have it accessible online --- Doc/doxygen/html/_net_auth_8cpp_source.html | 334 ++++++++++++++++++++++++++++ 1 file changed, 334 insertions(+) create mode 100644 Doc/doxygen/html/_net_auth_8cpp_source.html (limited to 'Doc/doxygen/html/_net_auth_8cpp_source.html') diff --git a/Doc/doxygen/html/_net_auth_8cpp_source.html b/Doc/doxygen/html/_net_auth_8cpp_source.html new file mode 100644 index 0000000..89a02de --- /dev/null +++ b/Doc/doxygen/html/_net_auth_8cpp_source.html @@ -0,0 +1,334 @@ + + + + + +Starshatter_Open: D:/SRC/StarshatterSVN/Stars45/NetAuth.cpp Source File + + + + + + + + + + + + + +
+
+ + + + + + +
+
Starshatter_Open +
+
Open source Starshatter engine
+
+
+ + + + + +
+
+ +
+
+
+ +
+ + + + +
+ +
+ +
+
+
NetAuth.cpp
+
+
+Go to the documentation of this file.
1 /* Project Starshatter 4.5
+
2  Destroyer Studios LLC
+
3  Copyright © 1997-2004. All Rights Reserved.
+
4 
+
5  SUBSYSTEM: Stars.exe
+
6  FILE: NetAuth.cpp
+
7  AUTHOR: John DiCamillo
+
8 
+
9 
+
10  OVERVIEW
+
11  ========
+
12  This class represents a user connecting to the multiplayer lobby
+
13 */
+
14 
+
15 
+
16 #include "MemDebug.h"
+
17 #include "NetAuth.h"
+
18 #include "NetLobby.h"
+
19 #include "NetUser.h"
+
20 #include "ModConfig.h"
+
21 #include "ModInfo.h"
+
22 #include "Random.h"
+
23 #include "sha1.h"
+
24 
+
25 static int auth_level = NetAuth::NET_AUTH_MINIMAL;
+
26 
+
27 // +-------------------------------------------------------------------+
+
28 
+
29 int
+
30 NetAuth::AuthLevel()
+
31 {
+
32  return auth_level;
+
33 }
+
34 
+
35 
+
36 void
+
37 NetAuth::SetAuthLevel(int n)
+
38 {
+
39  if (n >= NET_AUTH_MINIMAL && n <= NET_AUTH_SECURE)
+
40  auth_level = n;
+
41 }
+
42 
+
43 // +-------------------------------------------------------------------+
+
44 
+
45 Text
+
46 NetAuth::CreateAuthRequest(NetUser* u)
+
47 {
+
48  Text request;
+
49 
+
50  if (u) {
+
51  u->SetAuthLevel(auth_level);
+
52 
+
53  if (auth_level == NET_AUTH_MINIMAL) {
+
54  u->SetAuthState(NET_AUTH_OK);
+
55  u->SetSalt("Very Low Sodium");
+
56  }
+
57 
+
58  else if (auth_level == NET_AUTH_STANDARD) {
+
59  u->SetAuthState(NET_AUTH_INITIAL);
+
60  u->SetSalt("Very Low Sodium");
+
61 
+
62  request = "level 1";
+
63  }
+
64 
+
65  else {
+
66  char salt[33];
+
67 
+
68  for (int i = 0; i < 32; i++)
+
69  salt[i] = (char) ('0' + (int) Random(0, 9.4));
+
70 
+
71  salt[32] = 0;
+
72  u->SetSalt(salt);
+
73  u->SetAuthState(NET_AUTH_INITIAL);
+
74 
+
75  request = "level 2 salt ";
+
76  request += salt;
+
77  }
+
78  }
+
79 
+
80  return request;
+
81 }
+
82 
+
83 // +-------------------------------------------------------------------+
+
84 
+
85 static Text Digest(const char* salt, const char* file)
+
86 {
+
87  int length = 0;
+
88  int offset = 0;
+
89  char block[4096];
+
90  char digest[64];
+
91 
+
92  ZeroMemory(digest, sizeof(digest));
+
93 
+
94  if (file) {
+
95  FILE* f;
+
96  fopen_s(&f, file, "rb");
+
97 
+
98  if (f) {
+
99  SHA1 sha1;
+
100 
+
101  if (salt) {
+
102  sha1.Input(salt, strlen(salt));
+
103  }
+
104 
+
105  fseek(f, 0, SEEK_END);
+
106  length = ftell(f);
+
107  fseek(f, 0, SEEK_SET);
+
108 
+
109  while (offset < length) {
+
110  int n = fread(block, sizeof(char), 4096, f);
+
111  sha1.Input(block, n);
+
112  offset += n;
+
113  }
+
114 
+
115  fclose(f);
+
116 
+
117  unsigned result[5];
+
118  if (sha1.Result(result)) {
+
119  sprintf_s(digest, "SHA1_%08X_%08X_%08X_%08X_%08X",
+
120  result[0], result[1], result[2], result[3], result[4]);
+
121  }
+
122  }
+
123  }
+
124 
+
125  return digest;
+
126 }
+
127 
+
128 // +-------------------------------------------------------------------+
+
129 
+
130 Text
+
131 NetAuth::CreateAuthResponse(int level, const char* salt)
+
132 {
+
133  Text response;
+
134  ModConfig* config = ModConfig::GetInstance();
+
135 
+
136  if (level == NET_AUTH_SECURE) {
+
137 
+
138 #ifdef STARSHATTER_DEMO_RELEASE
+
139 
+
140  response += "exe ";
+
141  response += Digest(salt, "StarDemo.exe"); // XXX should look up name of this exe
+
142  response += " ";
+
143 
+
144 #else
+
145 
+
146  response += "exe ";
+
147  response += Digest(salt, "stars.exe"); // XXX should look up name of this exe
+
148  response += " ";
+
149 
+
150 #endif
+
151 
+
152  response += "dat ";
+
153  response += Digest(salt, "shatter.dat");
+
154  response += " ";
+
155 
+
156  response += "etc ";
+
157  response += Digest(salt, "start.dat");
+
158  response += " ";
+
159  }
+
160 
+
161  if (level >= NET_AUTH_STANDARD) {
+
162  List<ModInfo>& mods = config->GetModInfoList();
+
163  ListIter<ModInfo> mod_iter = mods;
+
164 
+
165  char buffer[32];
+
166  sprintf_s(buffer, "num %d ", mods.size());
+
167  response += buffer;
+
168 
+
169  while (++mod_iter) {
+
170  ModInfo* info = mod_iter.value();
+
171 
+
172  response += "mod \"";
+
173  response += info->Name();
+
174  response += "\" ver \"";
+
175  response += info->Version();
+
176  response += "\" ";
+
177 
+
178  if (level == NET_AUTH_SECURE) {
+
179  response += "sha ";
+
180  response += Digest(salt, info->Filename());
+
181  response += " ";
+
182  }
+
183  }
+
184  }
+
185 
+
186  return response;
+
187 }
+
188 
+
189 // +-------------------------------------------------------------------+
+
190 
+
191 bool
+
192 NetAuth::AuthUser(NetUser* u, Text response)
+
193 {
+
194  bool authentic = false;
+
195 
+
196  if (auth_level == NET_AUTH_MINIMAL) { // (this case should not occur)
+
197  if (u) {
+
198  u->SetAuthLevel(auth_level);
+
199  u->SetAuthState(NET_AUTH_OK);
+
200  }
+
201 
+
202  authentic = (u != 0);
+
203  }
+
204 
+
205  else if (u) {
+
206  Text expected_response = CreateAuthResponse(auth_level, u->Salt());
+
207  if (expected_response == response)
+
208  authentic = true;
+
209 
+
210  u->SetAuthState(authentic ? NET_AUTH_OK : NET_AUTH_FAILED);
+
211  }
+
212 
+
213  return authentic;
+
214 }
+
215 
+
216 // +-------------------------------------------------------------------+
+
217 
+
+
+ + + + -- cgit v1.1