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
|
/*
* Copyright 2023, Vincent Douillet <vincent@vdouillet.fr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "browse.h"
#include "cgi.h"
#include "config.h"
#include "download.h"
#include "http.h"
#include "upload.h"
enum page {
PAGE_BROWSE,
PAGE_DOWNLOAD,
PAGE_UPLOAD,
PAGE__MAX
};
static const char *const pages[PAGE__MAX] = {
BROWSE_URL,
DOWNLOAD_URL,
UPLOAD_URL
};
int
main(void)
{
char *data_dir;
enum kcgi_err parse_err;
struct kreq r;
struct http_ret ret;
if (kutil_openlog(LOG_FILE) == 0)
http_exit(NULL, KHTTP_500, "Unable to open %s", LOG_FILE);
parse_err = khttp_parse(&r, NULL, 0, pages, PAGE__MAX, PAGE_BROWSE);
if (parse_err != KCGI_OK)
http_exit(NULL, KHTTP_500, "Unable to parse request: %s",
kcgi_strerror(parse_err));
data_dir = config_data_dir();
if (data_dir == NULL)
http_exit(NULL, KHTTP_500, "Data dir not configured");
/* A bit of security cannot hurt */
if (-1 == unveil(data_dir, "rwc")
|| -1 == unveil(TEMPLATE_DIR, "r")
|| -1 == unveil(NULL, NULL))
http_exit(&r, KHTTP_500, "Unveil failed: %s", strerror(errno));
if (-1 == pledge("stdio rpath wpath cpath", NULL))
http_exit(&r, KHTTP_500, "Pledge failed: %s", strerror(errno));
/*
* Make sure basic request parameters are as expected : GET or POST,
* valid page and HTML document
*/
if (r.method != KMETHOD_GET && r.method != KMETHOD_POST)
http_exit(&r, KHTTP_405, NULL);
if (r.page == PAGE__MAX)
http_exit(&r, KHTTP_404, NULL);
switch (r.page) {
case PAGE_BROWSE:
if (r.mime != KMIME_TEXT_HTML)
http_exit(&r, KHTTP_406, NULL); /* Not Acceptable */
ret = browse(&r);
break;
case PAGE_DOWNLOAD:
ret = download(&r);
break;
case PAGE_UPLOAD:
ret = upload(&r);
break;
default:
http_exit(&r, KHTTP_404, NULL);
}
khttp_free(&r);
if (ret.code >= KHTTP_400)
http_exit(&r, ret.code, ret.message);
return EXIT_SUCCESS;
}
|
