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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
/* update.c
Copyright (c) 2003-2014 HandBrake Team
This file is part of the HandBrake source code
Homepage: <http://handbrake.fr/>.
It may be used under the terms of the GNU General Public License v2.
For full terms see the file COPYING file or visit http://www.gnu.org/licenses/gpl-2.0.html
*/
#include "hb.h"
static void UpdateFunc( void * );
typedef struct
{
int * build;
char * version;
} hb_update_t;
hb_thread_t * hb_update_init( int * build, char * version )
{
hb_update_t * data = calloc( sizeof( hb_update_t ), 1 );
data->build = build;
data->version = version;
return hb_thread_init( "update", UpdateFunc, data,
HB_NORMAL_PRIORITY );
}
static void UpdateFunc( void * _data )
{
hb_update_t * data = (hb_update_t *) _data;
char* const url = HB_PROJECT_URL_APPCAST;
char* const urlz = url + strlen( HB_PROJECT_URL_APPCAST ); /* marks null-term */
char url_host[64];
char url_path[128];
char query[256];
hb_net_t * net;
int ret;
char buf[4096];
char * cur, * end;
int size;
int i_vers;
char s_vers[32]; /* must be no larger than hb_handle_s.version */
int i;
/* Setup hb_query and hb_query_two with the correct appcast file */
hb_log( "Using %s", url );
/* extract host part */
cur = strstr( HB_PROJECT_URL_APPCAST, "//" );
if( !cur || cur+2 > urlz )
goto error;
cur += 2;
end = strstr( cur, "/" );
if( !end || end > urlz )
goto error;
memset( url_host, 0, sizeof(url_host) );
strncpy( url_host, cur, (end-cur) );
/* extract path part */
memset( url_path, 0, sizeof(url_path) );
strncpy( url_path, end, (urlz-end) );
if( !strlen( url_path ))
goto error;
memset( query, 0, sizeof(query) );
snprintf( query, sizeof(query), "GET %s HTTP/1.0\r\nHost: %s\r\n\r\n", url_path, url_host );
/* Grab the data from the web server */
if( !( net = hb_net_open( url_host, 80 ) ) )
{
goto error;
}
if( hb_net_send( net, query ) < 0 )
{
hb_log("Error: Unable to connect to server");
hb_net_close( &net );
goto error;
}
size = 0;
memset( buf, 0, 4096 );
for( ;; )
{
ret = hb_net_recv( net, &buf[size], sizeof( buf ) - size );
if( ret < 1 )
{
hb_net_close( &net );
break;
}
size += ret;
}
cur = buf;
end = &buf[sizeof( buf )];
/* Make sure we got it */
cur += 9;
if( size < 15 || strncmp( cur, "200 OK", 6 ) )
{
hb_log("Error: We did not get a 200 OK from the server. \n");
goto error;
}
cur += 6;
/* Find the end of the headers and the beginning of the content */
for( ; &cur[3] < end; cur++ )
{
if( cur[0] == '\r' && cur[1] == '\n' &&
cur[2] == '\r' && cur[3] == '\n' )
{
cur += 4;
break;
}
}
if( cur >= end )
{
hb_log("Error: Found the end of the buffer before the end of the HTTP header information! \n");
goto error;
}
/*
* Find the <cli> tag
* Scan though each character of the buffer until we find that the first 4 characters of "cur" are "<cli"
*/
for(i=0 ; &cur[3] < end; i++, cur++ )
{
if( cur[0] == 'c' && cur[1] == 'l' && cur[2] == 'i' && cur[3] == '>' )
{
cur += 1;
break;
}
/* If the CLI tag has not been found in the first 768 characters, or the end is reached, something bad happened.*/
if (( i > 768) || ( cur >= end ))
{
hb_log("Error: Did not find the <cli> tag in the expected maximum amount of characters into the file. \n");
goto error;
}
}
if( cur >= end )
{
goto error;
}
/*
* Ok, The above code didn't position cur, it only found <cli so we need to shift cur along 3 places.
* After which, the next 10 characters are the build number
*/
cur += 3;
if( cur >= end )
{
hb_log("Error: Unexpected end of buffer! Could not find the build information. \n");
goto error;
}
/* Stable HB_PROJECT_BUILD */
i_vers = strtol( cur, &cur, 10 );
if( cur >= end )
{
hb_log("Error: Unexpected end of buffer! \n");
goto error;
}
/*
* The Version number is 2 places after the build, so shift cur, 2 places.
* Get all the characters in cur until the point where " is found.
*/
cur += 2;
if( cur >= end )
{
hb_log("Error: Unexpected end of buffer! Could not get version number. \n");
goto error;
}
memset( s_vers, 0, sizeof( s_vers ) );
for( i = 0; i < sizeof( s_vers ) - 1 && cur < end && *cur != '"'; i++, cur++ )
{
s_vers[i] = *cur;
/* If the CLI tag has not been found in the first 768 characters, or the end is reached, something bad happened.*/
if (( cur >= end ))
{
hb_log("Error: Version number too long, or end of buffer reached. \n");
goto error;
}
}
if( cur >= end )
{
goto error;
}
/* Print the version information */
hb_log( "latest: %s, build %d", s_vers, i_vers );
/* Return the build information */
if( i_vers > HB_PROJECT_BUILD )
{
memcpy( data->version, s_vers, sizeof(s_vers) );
*(data->build) = i_vers;
}
error:
free( data );
return;
}
|
