2 d5af38cc 2022-01-10 op * Copyright (c) 2022 Omar Polo <op@omarpolo.com>
4 d5af38cc 2022-01-10 op * Permission to use, copy, modify, and distribute this software for any
5 d5af38cc 2022-01-10 op * purpose with or without fee is hereby granted, provided that the above
6 d5af38cc 2022-01-10 op * copyright notice and this permission notice appear in all copies.
8 d5af38cc 2022-01-10 op * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 d5af38cc 2022-01-10 op * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 d5af38cc 2022-01-10 op * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 d5af38cc 2022-01-10 op * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 d5af38cc 2022-01-10 op * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 d5af38cc 2022-01-10 op * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 d5af38cc 2022-01-10 op * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 d5af38cc 2022-01-10 op #include "compat.h"
19 d5af38cc 2022-01-10 op #include <stdlib.h>
20 d5af38cc 2022-01-10 op #include <stdint.h>
21 d5af38cc 2022-01-10 op #include <string.h>
23 d5af38cc 2022-01-10 op #include "telescope.h"
24 d5af38cc 2022-01-10 op #include "mcache.h"
26 d5af38cc 2022-01-10 op const char *gemtext_prefixes[] = {
27 d5af38cc 2022-01-10 op [LINE_TEXT] = "",
28 d5af38cc 2022-01-10 op [LINE_TITLE_1] = "# ",
29 d5af38cc 2022-01-10 op [LINE_TITLE_2] = "## ",
30 d5af38cc 2022-01-10 op [LINE_TITLE_3] = "### ",
31 d5af38cc 2022-01-10 op [LINE_ITEM] = "* ",
32 d5af38cc 2022-01-10 op [LINE_QUOTE] = "> ",
33 d5af38cc 2022-01-10 op [LINE_PRE_START] = "``` ",
34 d5af38cc 2022-01-10 op [LINE_PRE_CONTENT] = "",
35 d5af38cc 2022-01-10 op [LINE_PRE_END] = "```",
38 d5af38cc 2022-01-10 op struct mcache {
39 d5af38cc 2022-01-10 op struct ohash h;
43 d5af38cc 2022-01-10 op struct mcache_entry {
45 d5af38cc 2022-01-10 op struct evbuffer *evb;
49 d5af38cc 2022-01-10 op static void *hash_alloc(size_t, void *);
50 d5af38cc 2022-01-10 op static void *hash_calloc(size_t, size_t, void *);
51 d5af38cc 2022-01-10 op static void hash_free(void *, void *);
54 d5af38cc 2022-01-10 op hash_alloc(size_t len, void *d)
56 d5af38cc 2022-01-10 op if ((d = malloc(len)) == NULL)
62 d5af38cc 2022-01-10 op hash_calloc(size_t nmemb, size_t size, void *d)
64 d5af38cc 2022-01-10 op if ((d = calloc(nmemb, size)) == NULL)
70 d5af38cc 2022-01-10 op hash_free(void *ptr, void *d)
76 d5af38cc 2022-01-10 op mcache_init(void)
78 d5af38cc 2022-01-10 op struct ohash_info info = {
79 d5af38cc 2022-01-10 op .key_offset = offsetof(struct mcache_entry, url),
80 d5af38cc 2022-01-10 op .calloc = hash_calloc,
81 d5af38cc 2022-01-10 op .free = hash_free,
82 d5af38cc 2022-01-10 op .alloc = hash_alloc,
85 d5af38cc 2022-01-10 op ohash_init(&mcache.h, 5, &info);
89 d5af38cc 2022-01-10 op mcache_buffer(const char *url, struct buffer *buf, int trust)
91 d5af38cc 2022-01-10 op struct mcache_entry *e;
92 d5af38cc 2022-01-10 op struct line *line;
93 d5af38cc 2022-01-10 op unsigned int slot;
94 d5af38cc 2022-01-10 op size_t l, len;
96 d5af38cc 2022-01-10 op l = strlen(url);
97 d5af38cc 2022-01-10 op len = sizeof(*e) + l + 1;
99 d5af38cc 2022-01-10 op if ((e = calloc(1, len)) == NULL)
101 d5af38cc 2022-01-10 op e->trust = trust;
102 d5af38cc 2022-01-10 op memcpy(e->url, url, l);
104 d5af38cc 2022-01-10 op if ((e->evb = evbuffer_new()) == NULL)
107 d5af38cc 2022-01-10 op TAILQ_FOREACH(line, &buf->page.head, lines) {
108 d5af38cc 2022-01-10 op const char *text, *alt;
111 d5af38cc 2022-01-10 op if ((text = line->line) == NULL)
114 d5af38cc 2022-01-10 op if ((alt = line->alt) == NULL)
117 d5af38cc 2022-01-10 op switch (line->type) {
118 d5af38cc 2022-01-10 op case LINE_TEXT:
119 d5af38cc 2022-01-10 op case LINE_TITLE_1:
120 d5af38cc 2022-01-10 op case LINE_TITLE_2:
121 d5af38cc 2022-01-10 op case LINE_TITLE_3:
122 d5af38cc 2022-01-10 op case LINE_ITEM:
123 d5af38cc 2022-01-10 op case LINE_QUOTE:
124 d5af38cc 2022-01-10 op case LINE_PRE_START:
125 d5af38cc 2022-01-10 op case LINE_PRE_CONTENT:
126 d5af38cc 2022-01-10 op case LINE_PRE_END:
127 d5af38cc 2022-01-10 op r = evbuffer_add_printf(e->evb, "%s%s\n",
128 d5af38cc 2022-01-10 op gemtext_prefixes[line->type], text);
131 d5af38cc 2022-01-10 op case LINE_LINK:
132 d5af38cc 2022-01-10 op r = evbuffer_add_printf(e->evb, "=> %s %s\n",
136 d5af38cc 2022-01-10 op case LINE_PATCH:
137 d5af38cc 2022-01-10 op case LINE_PATCH_HDR:
138 d5af38cc 2022-01-10 op case LINE_PATCH_HUNK_HDR:
139 d5af38cc 2022-01-10 op case LINE_PATCH_ADD:
140 d5af38cc 2022-01-10 op case LINE_PATCH_DEL:
145 d5af38cc 2022-01-10 op case LINE_COMPL:
146 d5af38cc 2022-01-10 op case LINE_COMPL_CURRENT:
147 d5af38cc 2022-01-10 op case LINE_HELP:
148 d5af38cc 2022-01-10 op case LINE_DOWNLOAD:
149 d5af38cc 2022-01-10 op case LINE_DOWNLOAD_DONE:
150 d5af38cc 2022-01-10 op case LINE_DOWNLOAD_INFO:
151 d5af38cc 2022-01-10 op case LINE_FRINGE:
152 d5af38cc 2022-01-10 op /* not reached */
160 d5af38cc 2022-01-10 op slot = ohash_qlookup(&mcache.h, url);
161 d5af38cc 2022-01-10 op ohash_insert(&mcache.h, slot, e);
165 d5af38cc 2022-01-10 op if (e->evb != NULL)
166 d5af38cc 2022-01-10 op evbuffer_free(e->evb);
172 d5af38cc 2022-01-10 op mcache_lookup(const char *url, struct evbuffer **ret, int *trust)
174 d5af38cc 2022-01-10 op struct mcache_entry *e;
175 d5af38cc 2022-01-10 op unsigned int slot;
177 d5af38cc 2022-01-10 op slot = ohash_qlookup(&mcache.h, url);
178 d5af38cc 2022-01-10 op if ((e = ohash_find(&mcache.h, slot)) == NULL)
181 d5af38cc 2022-01-10 op *ret = e->evb;
182 d5af38cc 2022-01-10 op *trust = e->trust;