2 35e1f40a 2021-03-14 op * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
4 35e1f40a 2021-03-14 op * Permission to use, copy, modify, and distribute this software for any
5 35e1f40a 2021-03-14 op * purpose with or without fee is hereby granted, provided that the above
6 35e1f40a 2021-03-14 op * copyright notice and this permission notice appear in all copies.
8 35e1f40a 2021-03-14 op * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 35e1f40a 2021-03-14 op * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 35e1f40a 2021-03-14 op * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 35e1f40a 2021-03-14 op * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 35e1f40a 2021-03-14 op * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 35e1f40a 2021-03-14 op * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 35e1f40a 2021-03-14 op * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 740f578b 2021-03-15 op * Handles the data in ~/.telescope
20 3a227e9a 2021-03-18 op * TODO: add some form of locking on the files
23 786e6deb 2021-07-21 op #include "compat.h"
25 6cd6a9e1 2021-03-20 op #include <sys/stat.h>
26 65124267 2021-08-13 op #include <sys/types.h>
28 65124267 2021-08-13 op #include <dirent.h>
29 35e1f40a 2021-03-14 op #include <errno.h>
30 de2a69bb 2021-05-17 op #include <fcntl.h>
31 35e1f40a 2021-03-14 op #include <limits.h>
32 35e1f40a 2021-03-14 op #include <stdio.h>
33 35e1f40a 2021-03-14 op #include <stdlib.h>
34 35e1f40a 2021-03-14 op #include <string.h>
35 35e1f40a 2021-03-14 op #include <unistd.h>
37 4913b479 2021-07-12 op #include "telescope.h"
38 5a824be4 2021-07-13 op #include "pages.h"
40 35e1f40a 2021-03-14 op static void die(void) __attribute__((__noreturn__));
41 fb4dc49f 2021-08-13 op static void send_file(uint32_t, FILE *);
42 35e1f40a 2021-03-14 op static void handle_get(struct imsg*, size_t);
43 5cbe1763 2021-08-13 op static int select_non_dot(const struct dirent *);
44 5cbe1763 2021-08-13 op static int select_non_dotdot(const struct dirent *);
45 fb4dc49f 2021-08-13 op static void handle_get_file(struct imsg*, size_t);
46 35e1f40a 2021-03-14 op static void handle_quit(struct imsg*, size_t);
47 740f578b 2021-03-15 op static void handle_bookmark_page(struct imsg*, size_t);
48 3a227e9a 2021-03-18 op static void handle_save_cert(struct imsg*, size_t);
49 288fd238 2021-04-25 op static void handle_update_cert(struct imsg*, size_t);
50 de2a69bb 2021-05-17 op static void handle_file_open(struct imsg*, size_t);
51 c7107cec 2021-04-01 op static void handle_session_start(struct imsg*, size_t);
52 c7107cec 2021-04-01 op static void handle_session_tab(struct imsg*, size_t);
53 2f524b17 2021-07-17 op static void handle_session_tab_title(struct imsg*, size_t);
54 c7107cec 2021-04-01 op static void handle_session_end(struct imsg*, size_t);
55 1304bbdd 2021-03-15 op static void handle_dispatch_imsg(int, short, void*);
56 bc10f6a5 2021-07-12 op static int fs_send_ui(int, uint32_t, int, const void *, uint16_t);
58 bc10f6a5 2021-07-12 op static struct imsgev *iev_ui;
59 c7107cec 2021-04-01 op static FILE *session;
61 56e7efb4 2021-07-21 op static char base_path[PATH_MAX];
62 d0fd368a 2021-07-15 op static char lockfile_path[PATH_MAX];
63 740f578b 2021-03-15 op static char bookmark_file[PATH_MAX];
64 288fd238 2021-04-25 op static char known_hosts_file[PATH_MAX], known_hosts_tmp[PATH_MAX];
65 ea080950 2021-07-20 op static char crashed_file[PATH_MAX];
67 87e3e801 2021-07-17 op char session_file[PATH_MAX];
69 35e1f40a 2021-03-14 op static imsg_handlerfn *handlers[] = {
70 35e1f40a 2021-03-14 op [IMSG_GET] = handle_get,
71 fb4dc49f 2021-08-13 op [IMSG_GET_FILE] = handle_get_file,
72 35e1f40a 2021-03-14 op [IMSG_QUIT] = handle_quit,
73 740f578b 2021-03-15 op [IMSG_BOOKMARK_PAGE] = handle_bookmark_page,
74 3a227e9a 2021-03-18 op [IMSG_SAVE_CERT] = handle_save_cert,
75 288fd238 2021-04-25 op [IMSG_UPDATE_CERT] = handle_update_cert,
76 de2a69bb 2021-05-17 op [IMSG_FILE_OPEN] = handle_file_open,
77 c7107cec 2021-04-01 op [IMSG_SESSION_START] = handle_session_start,
78 c7107cec 2021-04-01 op [IMSG_SESSION_TAB] = handle_session_tab,
79 2f524b17 2021-07-17 op [IMSG_SESSION_TAB_TITLE] = handle_session_tab_title,
80 c7107cec 2021-04-01 op [IMSG_SESSION_END] = handle_session_end,
83 35e1f40a 2021-03-14 op static void __attribute__((__noreturn__))
86 35e1f40a 2021-03-14 op abort(); /* TODO */
90 fb4dc49f 2021-08-13 op send_file(uint32_t peerid, FILE *f)
93 fb4dc49f 2021-08-13 op char buf[BUFSIZ];
96 fb4dc49f 2021-08-13 op r = fread(buf, 1, sizeof(buf), f);
98 fb4dc49f 2021-08-13 op fs_send_ui(IMSG_BUF, peerid, -1, buf, r);
99 fb4dc49f 2021-08-13 op if (r != sizeof(buf))
102 fb4dc49f 2021-08-13 op fs_send_ui(IMSG_EOF, peerid, -1, NULL, 0);
107 35e1f40a 2021-03-14 op handle_get(struct imsg *imsg, size_t datalen)
109 56e7efb4 2021-07-21 op const char *bpath = "bookmarks.gmi";
110 fb4dc49f 2021-08-13 op char path[PATH_MAX];
112 a2728733 2021-07-18 op const char *data, *p;
114 a2728733 2021-07-18 op struct page {
115 a2728733 2021-07-18 op const char *name;
116 56e7efb4 2021-07-21 op const char *path;
117 a2728733 2021-07-18 op const uint8_t *data;
119 a2728733 2021-07-18 op } pages[] = {
120 56e7efb4 2021-07-21 op {"about", NULL, about_about, about_about_len},
121 56e7efb4 2021-07-21 op {"blank", NULL, about_blank, about_blank_len},
122 56e7efb4 2021-07-21 op {"bookmarks", bpath, bookmarks, bookmarks_len},
123 56e7efb4 2021-07-21 op {"crash", NULL, about_crash, about_crash_len},
124 56e7efb4 2021-07-21 op {"help", NULL, about_help, about_help_len},
125 56e7efb4 2021-07-21 op {"license", NULL, about_license, about_license_len},
126 56e7efb4 2021-07-21 op {"new", NULL, about_new, about_new_len},
127 56e7efb4 2021-07-21 op }, *page = NULL;
129 35e1f40a 2021-03-14 op data = imsg->data;
130 56e7efb4 2021-07-21 op if (data[datalen-1] != '\0') /* make sure it's NUL-terminated */
132 56e7efb4 2021-07-21 op if ((data = strchr(data, ':')) == NULL)
133 56e7efb4 2021-07-21 op goto notfound;
136 56e7efb4 2021-07-21 op for (i = 0; i < sizeof(pages)/sizeof(pages[0]); ++i)
137 56e7efb4 2021-07-21 op if (!strcmp(data, pages[i].name)) {
138 56e7efb4 2021-07-21 op page = &pages[i];
142 56e7efb4 2021-07-21 op if (page == NULL)
143 56e7efb4 2021-07-21 op goto notfound;
145 56e7efb4 2021-07-21 op strlcpy(path, base_path, sizeof(path));
146 56e7efb4 2021-07-21 op strlcat(path, "/", sizeof(path));
147 56e7efb4 2021-07-21 op if (page->path != NULL)
148 56e7efb4 2021-07-21 op strlcat(path, page->path, sizeof(path));
150 56e7efb4 2021-07-21 op strlcat(path, "pages/about_", sizeof(path));
151 56e7efb4 2021-07-21 op strlcat(path, page->name, sizeof(path));
152 56e7efb4 2021-07-21 op strlcat(path, ".gmi", sizeof(path));
155 56e7efb4 2021-07-21 op if ((f = fopen(path, "r")) == NULL) {
156 56e7efb4 2021-07-21 op fs_send_ui(IMSG_BUF, imsg->hdr.peerid, -1,
157 56e7efb4 2021-07-21 op page->data, page->len);
158 56e7efb4 2021-07-21 op fs_send_ui(IMSG_EOF, imsg->hdr.peerid, -1,
163 fb4dc49f 2021-08-13 op send_file(imsg->hdr.peerid, f);
167 a2728733 2021-07-18 op p = "# not found!\n";
168 a2728733 2021-07-18 op fs_send_ui(IMSG_BUF, imsg->hdr.peerid, -1, p, strlen(p));
169 a2728733 2021-07-18 op fs_send_ui(IMSG_EOF, imsg->hdr.peerid, -1, NULL, 0);
172 fb4dc49f 2021-08-13 op static inline void
173 fb4dc49f 2021-08-13 op send_hdr(uint32_t peerid, int code, const char *meta)
175 fb4dc49f 2021-08-13 op fs_send_ui(IMSG_GOT_CODE, peerid, -1, &code, sizeof(code));
176 fb4dc49f 2021-08-13 op fs_send_ui(IMSG_GOT_META, peerid, -1, meta, strlen(meta)+1);
179 24a68158 2021-08-13 op static inline void
180 24a68158 2021-08-13 op send_errno(uint32_t peerid, int code, const char *str, int no)
184 24a68158 2021-08-13 op if (asprintf(&s, "%s: %s", str, strerror(no)) == -1)
187 24a68158 2021-08-13 op send_hdr(peerid, code, s == NULL ? str : s);
191 65124267 2021-08-13 op static inline const char *
192 65124267 2021-08-13 op file_type(const char *path)
194 fb4dc49f 2021-08-13 op struct mapping {
195 fb4dc49f 2021-08-13 op const char *ext;
196 fb4dc49f 2021-08-13 op const char *mime;
198 fb4dc49f 2021-08-13 op {"diff", "text/x-patch"},
199 fb4dc49f 2021-08-13 op {"gemini", "text/gemini"},
200 fb4dc49f 2021-08-13 op {"gmi", "text/gemini"},
201 fb4dc49f 2021-08-13 op {"markdown", "text/plain"},
202 fb4dc49f 2021-08-13 op {"md", "text/plain"},
203 fb4dc49f 2021-08-13 op {"patch", "text/x-patch"},
204 fb4dc49f 2021-08-13 op {"txt", "text/plain"},
205 fb4dc49f 2021-08-13 op {NULL, NULL},
209 65124267 2021-08-13 op if ((dot = strrchr(path, '.')) == NULL)
214 65124267 2021-08-13 op for (m = ms; m->ext != NULL; ++m)
215 65124267 2021-08-13 op if (!strcmp(m->ext, dot))
216 65124267 2021-08-13 op return m->mime;
222 5cbe1763 2021-08-13 op select_non_dot(const struct dirent *d)
224 5cbe1763 2021-08-13 op return strcmp(d->d_name, ".");
228 5cbe1763 2021-08-13 op select_non_dotdot(const struct dirent *d)
230 5cbe1763 2021-08-13 op return strcmp(d->d_name, ".") && strcmp(d->d_name, "..");
233 65124267 2021-08-13 op static inline void
234 65124267 2021-08-13 op send_dir(uint32_t peerid, const char *path)
236 65124267 2021-08-13 op struct dirent **names;
237 65124267 2021-08-13 op struct evbuffer *ev;
239 5cbe1763 2021-08-13 op int (*selector)(const struct dirent *) = select_non_dot;
240 24a68158 2021-08-13 op int i, len, no;
242 5d43215b 2021-08-13 op if (!has_suffix(path, "/")) {
243 5d43215b 2021-08-13 op if (asprintf(&s, "%s/", path) == -1)
245 5d43215b 2021-08-13 op send_hdr(peerid, 30, s);
250 5cbe1763 2021-08-13 op if (!strcmp(path, "/"))
251 5cbe1763 2021-08-13 op selector = select_non_dotdot;
253 65124267 2021-08-13 op if ((ev = evbuffer_new()) == NULL ||
254 5cbe1763 2021-08-13 op (len = scandir(path, &names, selector, alphasort)) == -1) {
256 65124267 2021-08-13 op evbuffer_free(ev);
257 24a68158 2021-08-13 op send_errno(peerid, 40, "failure reading the directory", no);
261 65124267 2021-08-13 op evbuffer_add_printf(ev, "# Index of %s\n\n", path);
262 65124267 2021-08-13 op for (i = 0; i < len; ++i) {
263 65124267 2021-08-13 op evbuffer_add_printf(ev, "=> %s", names[i]->d_name);
264 65124267 2021-08-13 op if (names[i]->d_type == DT_DIR)
265 65124267 2021-08-13 op evbuffer_add(ev, "/", 1);
266 65124267 2021-08-13 op evbuffer_add(ev, "\n", 1);
269 65124267 2021-08-13 op send_hdr(peerid, 20, "text/gemini");
270 65124267 2021-08-13 op fs_send_ui(IMSG_BUF, peerid, -1,
271 65124267 2021-08-13 op EVBUFFER_DATA(ev), EVBUFFER_LENGTH(ev));
272 65124267 2021-08-13 op fs_send_ui(IMSG_EOF, peerid, -1, NULL, 0);
274 65124267 2021-08-13 op evbuffer_free(ev);
279 65124267 2021-08-13 op handle_get_file(struct imsg *imsg, size_t datalen)
281 65124267 2021-08-13 op struct stat sb;
284 fb4dc49f 2021-08-13 op const char *meta = NULL;
286 fb4dc49f 2021-08-13 op data = imsg->data;
287 fb4dc49f 2021-08-13 op data[datalen-1] = '\0';
289 65124267 2021-08-13 op if ((f = fopen(data, "r")) == NULL) {
290 24a68158 2021-08-13 op send_errno(imsg->hdr.peerid, 51, "can't open", errno);
294 65124267 2021-08-13 op if (fstat(fileno(f), &sb) == -1) {
295 24a68158 2021-08-13 op send_errno(imsg->hdr.peerid, 40, "fstat", errno);
299 65124267 2021-08-13 op if (S_ISDIR(sb.st_mode)) {
301 65124267 2021-08-13 op send_dir(imsg->hdr.peerid, data);
305 65124267 2021-08-13 op if ((meta = file_type(data)) == NULL) {
307 65124267 2021-08-13 op send_hdr(imsg->hdr.peerid, 51,
308 65124267 2021-08-13 op "don't know how to visualize this file");
312 fb4dc49f 2021-08-13 op send_hdr(imsg->hdr.peerid, 20, meta);
313 fb4dc49f 2021-08-13 op send_file(imsg->hdr.peerid, f);
317 35e1f40a 2021-03-14 op handle_quit(struct imsg *imsg, size_t datalen)
319 be97d6e6 2021-08-15 op unlink(crashed_file);
321 35e1f40a 2021-03-14 op event_loopbreak();
325 740f578b 2021-03-15 op handle_bookmark_page(struct imsg *imsg, size_t datalen)
331 740f578b 2021-03-15 op data = imsg->data;
332 740f578b 2021-03-15 op if (data[datalen-1] != '\0')
335 740f578b 2021-03-15 op if ((f = fopen(bookmark_file, "a")) == NULL) {
339 740f578b 2021-03-15 op fprintf(f, "=> %s\n", data);
344 bc10f6a5 2021-07-12 op fs_send_ui(IMSG_BOOKMARK_OK, 0, -1, &res, sizeof(res));
348 3a227e9a 2021-03-18 op handle_save_cert(struct imsg *imsg, size_t datalen)
350 3a227e9a 2021-03-18 op struct tofu_entry e;
354 3a227e9a 2021-03-18 op /* TODO: traverse the file to avoid duplications? */
356 3a227e9a 2021-03-18 op if (datalen != sizeof(e))
358 3a227e9a 2021-03-18 op memcpy(&e, imsg->data, datalen);
360 3a227e9a 2021-03-18 op if ((f = fopen(known_hosts_file, "a")) == NULL) {
364 3a227e9a 2021-03-18 op fprintf(f, "%s %s %d\n", e.domain, e.hash, e.verified);
369 bc10f6a5 2021-07-12 op fs_send_ui(IMSG_SAVE_CERT_OK, imsg->hdr.peerid, -1,
370 288fd238 2021-04-25 op &res, sizeof(res));
374 288fd238 2021-04-25 op handle_update_cert(struct imsg *imsg, size_t datalen)
376 288fd238 2021-04-25 op FILE *tmp, *f;
377 288fd238 2021-04-25 op struct tofu_entry entry;
378 288fd238 2021-04-25 op char sfn[PATH_MAX], *line = NULL, *t;
379 288fd238 2021-04-25 op size_t l, linesize = 0;
380 288fd238 2021-04-25 op ssize_t linelen;
381 288fd238 2021-04-25 op int fd, e, res = 0;
383 288fd238 2021-04-25 op if (datalen != sizeof(entry))
385 288fd238 2021-04-25 op memcpy(&entry, imsg->data, datalen);
387 288fd238 2021-04-25 op strlcpy(sfn, known_hosts_tmp, sizeof(sfn));
388 288fd238 2021-04-25 op if ((fd = mkstemp(sfn)) == -1 ||
389 288fd238 2021-04-25 op (tmp = fdopen(fd, "w")) == NULL) {
390 288fd238 2021-04-25 op if (fd != -1) {
398 288fd238 2021-04-25 op if ((f = fopen(known_hosts_file, "r")) == NULL) {
405 288fd238 2021-04-25 op l = strlen(entry.domain);
406 288fd238 2021-04-25 op while ((linelen = getline(&line, &linesize, f)) != -1) {
407 288fd238 2021-04-25 op if ((t = strstr(line, entry.domain)) != NULL &&
408 288fd238 2021-04-25 op (line[l] == ' ' || line[l] == '\t'))
410 288fd238 2021-04-25 op /* line has a trailing \n */
411 288fd238 2021-04-25 op fprintf(tmp, "%s", line);
413 288fd238 2021-04-25 op fprintf(tmp, "%s %s %d\n", entry.domain, entry.hash, entry.verified);
416 288fd238 2021-04-25 op e = ferror(tmp);
427 288fd238 2021-04-25 op res = rename(sfn, known_hosts_file) != -1;
430 bc10f6a5 2021-07-12 op fs_send_ui(IMSG_UPDATE_CERT_OK, imsg->hdr.peerid, -1,
431 3a227e9a 2021-03-18 op &res, sizeof(res));
435 de2a69bb 2021-05-17 op handle_file_open(struct imsg *imsg, size_t datalen)
437 de2a69bb 2021-05-17 op char *path, *e;
440 de2a69bb 2021-05-17 op path = imsg->data;
441 de2a69bb 2021-05-17 op if (path[datalen-1] != '\0')
444 de2a69bb 2021-05-17 op if ((fd = open(path, O_WRONLY | O_TRUNC | O_CREAT, 0644)) == -1) {
445 de2a69bb 2021-05-17 op e = strerror(errno);
446 bc10f6a5 2021-07-12 op fs_send_ui(IMSG_FILE_OPENED, imsg->hdr.peerid, -1,
447 de2a69bb 2021-05-17 op e, strlen(e)+1);
449 bc10f6a5 2021-07-12 op fs_send_ui(IMSG_FILE_OPENED, imsg->hdr.peerid, fd,
454 c7107cec 2021-04-01 op handle_session_start(struct imsg *imsg, size_t datalen)
456 c7107cec 2021-04-01 op if (datalen != 0)
459 c7107cec 2021-04-01 op if ((session = fopen(session_file, "w")) == NULL)
464 c7107cec 2021-04-01 op handle_session_tab(struct imsg *imsg, size_t datalen)
467 87e3e801 2021-07-17 op uint32_t flags;
469 c7107cec 2021-04-01 op if (session == NULL)
472 87e3e801 2021-07-17 op flags = imsg->hdr.peerid;
473 58df4f47 2021-07-17 op url = imsg->data;
474 58df4f47 2021-07-17 op if (datalen == 0 || url[datalen-1] != '\0')
476 58df4f47 2021-07-17 op fprintf(session, "%s", url);
478 87e3e801 2021-07-17 op if (flags & TAB_CURRENT)
479 2f524b17 2021-07-17 op fprintf(session, " current ");
481 2f524b17 2021-07-17 op fprintf(session, " - ");
485 2f524b17 2021-07-17 op handle_session_tab_title(struct imsg *imsg, size_t datalen)
487 2f524b17 2021-07-17 op const char *title;
489 2f524b17 2021-07-17 op title = imsg->data;
490 2f524b17 2021-07-17 op if (title == NULL) {
495 2f524b17 2021-07-17 op if (title[datalen-1] != '\0')
498 2f524b17 2021-07-17 op fprintf(session, "%s\n", title);
502 c7107cec 2021-04-01 op handle_session_end(struct imsg *imsg, size_t datalen)
504 c7107cec 2021-04-01 op if (session == NULL)
506 c7107cec 2021-04-01 op fclose(session);
507 c7107cec 2021-04-01 op session = NULL;
511 1304bbdd 2021-03-15 op handle_dispatch_imsg(int fd, short ev, void *d)
513 bc10f6a5 2021-07-12 op struct imsgev *iev = d;
516 ea080950 2021-07-20 op if (dispatch_imsg(iev, ev, handlers, sizeof(handlers)) == -1) {
518 ea080950 2021-07-20 op * This should leave a ~/.telescope/crashed file to
519 ea080950 2021-07-20 op * trigger about:crash on next run. Unfortunately, if
520 ea080950 2021-07-20 op * the main process dies the fs sticks around and
521 ea080950 2021-07-20 op * doesn't notice that the fd was closed. Why EV_READ
522 ea080950 2021-07-20 op * is not triggered when a fd is closed on the other end?
525 ea080950 2021-07-20 op if ((fd = open(crashed_file, O_CREAT|O_TRUNC|O_WRONLY, 0600))
527 ea080950 2021-07-20 op err(1, "open");
529 ea080950 2021-07-20 op errx(1, "connection closed: %s", strerror(e));
534 bc10f6a5 2021-07-12 op fs_send_ui(int type, uint32_t peerid, int fd, const void *data,
535 bc10f6a5 2021-07-12 op uint16_t datalen)
537 bc10f6a5 2021-07-12 op return imsg_compose_event(iev_ui, type, peerid, 0, fd,
538 bc10f6a5 2021-07-12 op data, datalen);
542 3a227e9a 2021-03-18 op fs_init(void)
544 56e7efb4 2021-07-21 op strlcpy(base_path, getenv("HOME"), sizeof(base_path));
545 56e7efb4 2021-07-21 op strlcat(base_path, "/.telescope", sizeof(base_path));
546 56e7efb4 2021-07-21 op mkdir(base_path, 0700);
548 56e7efb4 2021-07-21 op strlcpy(lockfile_path, base_path, sizeof(lockfile_path));
549 56e7efb4 2021-07-21 op strlcat(lockfile_path, "/lock", sizeof(lockfile_path));
551 56e7efb4 2021-07-21 op strlcpy(bookmark_file, base_path, sizeof(bookmark_file));
552 56e7efb4 2021-07-21 op strlcat(bookmark_file, "/bookmarks.gmi", sizeof(bookmark_file));
554 56e7efb4 2021-07-21 op strlcpy(known_hosts_file, base_path, sizeof(known_hosts_file));
555 56e7efb4 2021-07-21 op strlcat(known_hosts_file, "/known_hosts", sizeof(known_hosts_file));
557 56e7efb4 2021-07-21 op strlcpy(known_hosts_tmp, base_path, sizeof(known_hosts_tmp));
558 56e7efb4 2021-07-21 op strlcat(known_hosts_tmp, "/known_hosts.tmp.XXXXXXXXXX",
559 288fd238 2021-04-25 op sizeof(known_hosts_file));
561 56e7efb4 2021-07-21 op strlcpy(session_file, base_path, sizeof(session_file));
562 56e7efb4 2021-07-21 op strlcat(session_file, "/session", sizeof(session_file));
564 56e7efb4 2021-07-21 op strlcpy(crashed_file, base_path, sizeof(crashed_file));
565 56e7efb4 2021-07-21 op strlcat(crashed_file, "/crashed", sizeof(crashed_file));
571 6cc5fcfe 2021-07-08 op fs_main(void)
573 6cc5fcfe 2021-07-08 op setproctitle("fs");
577 35e1f40a 2021-03-14 op event_init();
579 bc10f6a5 2021-07-12 op /* Setup pipe and event handler to the main process */
580 bc10f6a5 2021-07-12 op if ((iev_ui = malloc(sizeof(*iev_ui))) == NULL)
582 bc10f6a5 2021-07-12 op imsg_init(&iev_ui->ibuf, 3);
583 bc10f6a5 2021-07-12 op iev_ui->handler = handle_dispatch_imsg;
584 bc10f6a5 2021-07-12 op iev_ui->events = EV_READ;
585 bc10f6a5 2021-07-12 op event_set(&iev_ui->ev, iev_ui->ibuf.fd, iev_ui->events,
586 bc10f6a5 2021-07-12 op iev_ui->handler, iev_ui);
587 bc10f6a5 2021-07-12 op event_add(&iev_ui->ev, NULL);
589 35e1f40a 2021-03-14 op sandbox_fs_process();
591 35e1f40a 2021-03-14 op event_dispatch();
598 be97d6e6 2021-08-15 op * Check if the last time telescope crashed. The check is done by
599 be97d6e6 2021-08-15 op * looking at `crashed_file': if it exists then last time we crashed.
600 be97d6e6 2021-08-15 op * Then, while here, touch the file too. During IMSG_QUIT we'll
604 b6171794 2021-07-20 op last_time_crashed(void)
606 be97d6e6 2021-08-15 op int fd, crashed = 1;
608 be97d6e6 2021-08-15 op if (unlink(crashed_file) == -1 && errno == ENOENT)
611 be97d6e6 2021-08-15 op if ((fd = open(crashed_file, O_CREAT|O_WRONLY, 0600)) == -1)
612 be97d6e6 2021-08-15 op return crashed;
615 be97d6e6 2021-08-15 op return crashed;
619 d0fd368a 2021-07-15 op lock_session(void)
621 d0fd368a 2021-07-15 op struct flock lock;
624 d0fd368a 2021-07-15 op if ((fd = open(lockfile_path, O_WRONLY|O_CREAT, 0600)) == -1)
627 d0fd368a 2021-07-15 op lock.l_start = 0;
628 d0fd368a 2021-07-15 op lock.l_len = 0;
629 d0fd368a 2021-07-15 op lock.l_type = F_WRLCK;
630 d0fd368a 2021-07-15 op lock.l_whence = SEEK_SET;
632 d0fd368a 2021-07-15 op if (fcntl(fd, F_SETLK, &lock) == -1) {
641 c6d03cf5 2021-04-25 op parse_khost_line(char *line, char *tmp[3])
645 c6d03cf5 2021-04-25 op for (ap = tmp; ap < &tmp[3] &&
646 c6d03cf5 2021-04-25 op (*ap = strsep(&line, " \t\n")) != NULL;) {
647 c6d03cf5 2021-04-25 op if (**ap != '\0')
651 c6d03cf5 2021-04-25 op return ap == &tmp[3] && *line == '\0';
655 3a227e9a 2021-03-18 op load_certs(struct ohash *h)
657 c6d03cf5 2021-04-25 op char *tmp[3], *line = NULL;
658 6cd6a9e1 2021-03-20 op const char *errstr;
659 ec1fa0b0 2021-04-25 op size_t lineno = 0, linesize = 0;
660 3a227e9a 2021-03-18 op ssize_t linelen;
662 3a227e9a 2021-03-18 op struct tofu_entry *e;
664 3a227e9a 2021-03-18 op if ((f = fopen(known_hosts_file, "r")) == NULL)
667 3a227e9a 2021-03-18 op while ((linelen = getline(&line, &linesize, f)) != -1) {
668 3a227e9a 2021-03-18 op if ((e = calloc(1, sizeof(*e))) == NULL)
673 c6d03cf5 2021-04-25 op if (parse_khost_line(line, tmp)) {
674 c6d03cf5 2021-04-25 op strlcpy(e->domain, tmp[0], sizeof(e->domain));
675 c6d03cf5 2021-04-25 op strlcpy(e->hash, tmp[1], sizeof(e->hash));
677 c6d03cf5 2021-04-25 op e->verified = strtonum(tmp[2], 0, 1, &errstr);
678 c6d03cf5 2021-04-25 op if (errstr != NULL)
679 c6d03cf5 2021-04-25 op errx(1, "%s:%zu verification for %s is %s: %s",
680 c6d03cf5 2021-04-25 op known_hosts_file, lineno,
681 c6d03cf5 2021-04-25 op e->domain, errstr, tmp[2]);
682 c6d03cf5 2021-04-25 op tofu_add(h, e);
684 ec1fa0b0 2021-04-25 op warnx("%s:%zu invalid entry",
685 ec1fa0b0 2021-04-25 op known_hosts_file, lineno);
691 3a227e9a 2021-03-18 op return ferror(f);
