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
|
/**
* part of Hydrilla
* Program entry point.
*
* Copyright (C) 2021 Wojtek Kosior
* Redistribution terms are gathered in the `copyright' file.
*/
#define _POSIX_C_SOURCE 200809L /* S_IFMT, S_IFDIR */
#include <dirent.h>
#include <errno.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include <stdlib.h>
#include <cjson/cJSON.h>
#include "string_buf.h"
#include "hashtable.h"
#include "scriptbase.h"
#define PRESERVE_ERRNO(call) \
do { \
int VERY_UNLIKELY_TO_COLLIDE_NAME_$$$$$$$$##__LINE__ = errno; \
call; \
errno = VERY_UNLIKELY_TO_COLLIDE_NAME_$$$$$$$$##__LINE__; \
} while (0)
static const char default_search_path[] = CONTENTDIR;
static int process_scriptbase_subdir(struct scriptbase *base,
struct dirent *subdir,
struct stringbuf *path_buf,
struct stringbuf *json_buf)
{
struct stat statbuf;
cJSON *index_json;
int retval = -1;
size_t initial_len = path_buf->buf_filled, len_dirname;
if (sb_string(path_buf, subdir->d_name))
return -1;
len_dirname = path_buf->buf_filled;
if (stat(path_buf->buf, &statbuf))
return -1;
if ((statbuf.st_mode & S_IFMT) != S_IFDIR)
return 0;
if (sb_string(path_buf, "/index.json"))
return -1;
printf("Reading %s\n", path_buf->buf);
stringbuf_truncate(json_buf, 0);
if (sb_filepath(json_buf, path_buf->buf))
return -1;
index_json = cJSON_Parse(json_buf->buf);
if (!index_json) {
fprintf(stderr, "Failed to parse json.\n");
return -1;
}
stringbuf_truncate(path_buf, len_dirname);
retval = catalogue_component(path_buf->buf + initial_len,
index_json, base);
PRESERVE_ERRNO(cJSON_Delete(index_json));
return retval;
}
static int prepare_scriptbase_from_dir(const char *dir_path,
struct scriptbase *base)
{
DIR *maindir = NULL;
struct dirent *subdir;
struct stringbuf path_buf;
struct stringbuf json_buf;
size_t base_path_len;
int retval = -1;
printf("Searching %s\n", dir_path);
stringbuf_init(&path_buf);
stringbuf_init(&json_buf);
if (scriptbase_init(base, "https://hydrilla.koszko.org/resources"))
goto end;
maindir = opendir(dir_path);
if (!maindir)
goto end;
if (sb_sprintf(&path_buf, "%s/", dir_path))
goto end;
base_path_len = path_buf.buf_filled;
while (true) {
errno = 0;
subdir = readdir(maindir);
if (!subdir) {
if (!errno)
retval = 0;
break;
}
if (!strcmp(subdir->d_name, "..") ||
!strcmp(subdir->d_name, "."))
continue;
stringbuf_truncate(&path_buf, base_path_len);
errno = 0;
if (process_scriptbase_subdir(base, subdir,
&path_buf, &json_buf)) {
fprintf(stderr, "Error processing subdirectory %s%s",
subdir->d_name, errno ? ": " : ".\n");
if (errno)
perror(NULL);
}
}
end:
if (errno)
perror(NULL);
stringbuf_destroy(&path_buf);
stringbuf_destroy(&json_buf);
if (maindir)
closedir(maindir);
if (retval)
scriptbase_destroy(base);
printf("Search in %s %s.\n", dir_path, retval ? "failed" : "finished");
return retval;
}
static void print_component_name(const void *key, void *val, void *arg)
{
char type = (char) (size_t) arg;
bool unfilled;
unfilled =
(type == 's' && !((struct script*) val)->filled) ||
(type == 'b' && !((struct bag*) val)->filled);
printf("%s%s\n", (const char*) key,
unfilled ? " (referenced only)" : "");
}
int serve_scriptbase(struct scriptbase *base, bool);
int main(int argc, char *argv[])
{
struct scriptbase base;
const char *search_path = default_search_path;
if (argc > 1)
search_path = argv[1];
if (prepare_scriptbase_from_dir(search_path, &base))
return -1;
puts("## LOADED SCRIPTS:");
ht_map(&base.scripts, (void*) 's', print_component_name);
puts("## LOADED BAGS:");
ht_map(&base.bags, (void*) 'b', print_component_name);
puts("## LOADED PAGES:");
ht_map(&base.pages, (void*) 'p', print_component_name);
if (serve_scriptbase(&base, !!getenv("HYDRILLA_WAIT_SIGTERM")))
fprintf(stderr, "Error serving scriptbase.\n");
scriptbase_destroy(&base);
return 0;
}
|
