1 5e11c00c 2021-03-02 op #include "telescope.h"
3 5e11c00c 2021-03-02 op #include <sys/socket.h>
5 5e11c00c 2021-03-02 op #include <err.h>
6 5e11c00c 2021-03-02 op #include <errno.h>
7 5e11c00c 2021-03-02 op #include <signal.h>
8 5e11c00c 2021-03-02 op #include <stdio.h>
9 5e11c00c 2021-03-02 op #include <stdlib.h>
10 5e11c00c 2021-03-02 op #include <string.h>
11 5e11c00c 2021-03-02 op #include <unistd.h>
13 35e1f40a 2021-03-14 op struct event netev, fsev;
14 5e11c00c 2021-03-02 op struct tabshead tabshead;
16 c07ac996 2021-03-12 op /* the first is also the fallback one */
17 c07ac996 2021-03-12 op static struct proto protos[] = {
18 4d3785b1 2021-03-09 op { "gemini:", load_gemini_url },
19 4d3785b1 2021-03-09 op { "about:", load_about_url },
20 4d3785b1 2021-03-09 op { NULL, NULL },
23 35e1f40a 2021-03-14 op static struct imsgbuf *netibuf, *fsibuf;
25 2051e653 2021-03-13 op static void die(void) __attribute__((__noreturn__));
26 2051e653 2021-03-13 op static struct tab *tab_by_id(uint32_t);
27 2051e653 2021-03-13 op static void handle_imsg_err(struct imsg*, size_t);
28 2051e653 2021-03-13 op static void handle_imsg_check_cert(struct imsg*, size_t);
29 2051e653 2021-03-13 op static void handle_imsg_got_code(struct imsg*, size_t);
30 2051e653 2021-03-13 op static void handle_imsg_got_meta(struct imsg*, size_t);
31 2051e653 2021-03-13 op static void handle_imsg_buf(struct imsg*, size_t);
32 2051e653 2021-03-13 op static void handle_imsg_eof(struct imsg*, size_t);
33 740f578b 2021-03-15 op static void handle_imsg_bookmark_ok(struct imsg*, size_t);
34 1304bbdd 2021-03-15 op static void handle_dispatch_imsg(int, short, void*);
35 2051e653 2021-03-13 op static void load_page_from_str(struct tab*, const char*);
36 2051e653 2021-03-13 op static void do_load_url(struct tab*, const char*);
38 5e11c00c 2021-03-02 op static imsg_handlerfn *handlers[] = {
39 5e11c00c 2021-03-02 op [IMSG_ERR] = handle_imsg_err,
40 5e11c00c 2021-03-02 op [IMSG_CHECK_CERT] = handle_imsg_check_cert,
41 5e11c00c 2021-03-02 op [IMSG_GOT_CODE] = handle_imsg_got_code,
42 5e11c00c 2021-03-02 op [IMSG_GOT_META] = handle_imsg_got_meta,
43 5e11c00c 2021-03-02 op [IMSG_BUF] = handle_imsg_buf,
44 5e11c00c 2021-03-02 op [IMSG_EOF] = handle_imsg_eof,
45 740f578b 2021-03-15 op [IMSG_BOOKMARK_OK] = handle_imsg_bookmark_ok,
48 5e11c00c 2021-03-02 op static void __attribute__((__noreturn__))
51 5e11c00c 2021-03-02 op abort(); /* TODO */
54 5e11c00c 2021-03-02 op static struct tab *
55 5e11c00c 2021-03-02 op tab_by_id(uint32_t id)
57 5e11c00c 2021-03-02 op struct tab *t;
59 5e11c00c 2021-03-02 op TAILQ_FOREACH(t, &tabshead, tabs) {
60 5e11c00c 2021-03-02 op if (t->id == id)
68 5e11c00c 2021-03-02 op handle_imsg_err(struct imsg *imsg, size_t datalen)
70 3a9b9365 2021-03-09 op struct tab *tab;
73 3a9b9365 2021-03-09 op tab = tab_by_id(imsg->hdr.peerid);
75 3a9b9365 2021-03-09 op page = imsg->data;
76 3a9b9365 2021-03-09 op page[datalen-1] = '\0';
78 3a9b9365 2021-03-09 op if (asprintf(&page, "# Error loading %s\n\n> %s\n",
79 2051e653 2021-03-13 op tab->hist_cur->h, page) == -1)
81 3a9b9365 2021-03-09 op load_page_from_str(tab, page);
86 5e11c00c 2021-03-02 op handle_imsg_check_cert(struct imsg *imsg, size_t datalen)
88 5e11c00c 2021-03-02 op int tofu_res = 1;
90 1b8a4bbf 2021-03-12 op imsg_compose(netibuf, IMSG_CERT_STATUS, imsg->hdr.peerid, 0, -1, &tofu_res, sizeof(tofu_res));
91 1b8a4bbf 2021-03-12 op imsg_flush(netibuf);
94 5cd2ebb1 2021-03-11 op static inline int
95 5cd2ebb1 2021-03-11 op normalize_code(int n)
98 5cd2ebb1 2021-03-11 op if (n == 10 || n == 11)
101 5cd2ebb1 2021-03-11 op } else if (n < 30) {
103 5cd2ebb1 2021-03-11 op } else if (n < 40) {
104 5cd2ebb1 2021-03-11 op if (n == 30 || n == 31)
107 5cd2ebb1 2021-03-11 op } else if (n < 50) {
111 5cd2ebb1 2021-03-11 op } else if (n < 60) {
112 5cd2ebb1 2021-03-11 op if (n <= 53 || n == 59)
115 5cd2ebb1 2021-03-11 op } else if (n < 70) {
120 5cd2ebb1 2021-03-11 op return MALFORMED_RESPONSE;
124 5e11c00c 2021-03-02 op handle_imsg_got_code(struct imsg *imsg, size_t datalen)
126 0972d8b2 2021-03-02 op struct tab *tab;
128 0972d8b2 2021-03-02 op tab = tab_by_id(imsg->hdr.peerid);
130 0972d8b2 2021-03-02 op if (sizeof(tab->code) != datalen)
133 5cd2ebb1 2021-03-11 op memcpy(&tab->code, imsg->data, sizeof(tab->code));
134 5cd2ebb1 2021-03-11 op tab->code = normalize_code(tab->code);
135 5cd2ebb1 2021-03-11 op if (tab->code != 30 && tab->code != 31)
136 0972d8b2 2021-03-02 op tab->redirect_count = 0;
140 5e11c00c 2021-03-02 op handle_imsg_got_meta(struct imsg *imsg, size_t datalen)
142 0972d8b2 2021-03-02 op struct tab *tab;
144 0972d8b2 2021-03-02 op tab = tab_by_id(imsg->hdr.peerid);
146 0972d8b2 2021-03-02 op if (sizeof(tab->meta) <= datalen)
149 0972d8b2 2021-03-02 op memcpy(tab->meta, imsg->data, datalen);
151 5cd2ebb1 2021-03-11 op if (tab->code < 10) { /* internal errors */
152 5cd2ebb1 2021-03-11 op load_page_from_str(tab, err_pages[tab->code]);
153 5cd2ebb1 2021-03-11 op } else if (tab->code < 20) { /* 1x */
154 5cd2ebb1 2021-03-11 op load_page_from_str(tab, err_pages[tab->code]);
155 5cd2ebb1 2021-03-11 op ui_require_input(tab, tab->code == 11);
156 5cd2ebb1 2021-03-11 op } else if (tab->code == 20) {
157 c07ac996 2021-03-12 op if (setup_parser_for(tab)) {
158 1b8a4bbf 2021-03-12 op imsg_compose(netibuf, IMSG_PROCEED, tab->id, 0, -1, NULL, 0);
159 1b8a4bbf 2021-03-12 op imsg_flush(netibuf);
161 c07ac996 2021-03-12 op load_page_from_str(tab, err_pages[UNKNOWN_TYPE_OR_CSET]);
163 5cd2ebb1 2021-03-11 op } else if (tab->code < 40) { /* 3x */
164 3a9b9365 2021-03-09 op tab->redirect_count++;
166 3a9b9365 2021-03-09 op /* TODO: make customizable? */
167 3a9b9365 2021-03-09 op if (tab->redirect_count > 5) {
168 3a9b9365 2021-03-09 op load_page_from_str(tab,
169 3a9b9365 2021-03-09 op err_pages[TOO_MUCH_REDIRECTS]);
171 2051e653 2021-03-13 op do_load_url(tab, tab->meta);
172 5cd2ebb1 2021-03-11 op } else { /* 4x, 5x & 6x */
173 5cd2ebb1 2021-03-11 op load_page_from_str(tab, err_pages[tab->code]);
178 5e11c00c 2021-03-02 op handle_imsg_buf(struct imsg *imsg, size_t datalen)
180 0972d8b2 2021-03-02 op struct tab *tab;
182 0972d8b2 2021-03-02 op tab = tab_by_id(imsg->hdr.peerid);
184 0972d8b2 2021-03-02 op if (!tab->page.parse(&tab->page, imsg->data, datalen))
187 0972d8b2 2021-03-02 op ui_on_tab_refresh(tab);
191 5e11c00c 2021-03-02 op handle_imsg_eof(struct imsg *imsg, size_t datalen)
193 a5c3e03d 2021-03-02 op struct tab *t;
195 a5c3e03d 2021-03-02 op t = tab_by_id(imsg->hdr.peerid);
196 a5c3e03d 2021-03-02 op if (!t->page.free(&t->page))
199 a5c3e03d 2021-03-02 op ui_on_tab_refresh(t);
200 8af5e5ed 2021-03-08 op ui_on_tab_loaded(t);
204 740f578b 2021-03-15 op handle_imsg_bookmark_ok(struct imsg *imsg, size_t datalen)
208 740f578b 2021-03-15 op if (datalen != sizeof(res))
211 740f578b 2021-03-15 op memcpy(&res, imsg->data, sizeof(res));
212 740f578b 2021-03-15 op if (res == 0)
213 740f578b 2021-03-15 op ui_notify("Added to bookmarks!");
215 740f578b 2021-03-15 op ui_notify("Failed to add to bookmarks: %s",
216 740f578b 2021-03-15 op strerror(res));
220 1304bbdd 2021-03-15 op handle_dispatch_imsg(int fd, short ev, void *d)
222 35e1f40a 2021-03-14 op struct imsgbuf *ibuf = d;
223 1304bbdd 2021-03-15 op dispatch_imsg(ibuf, handlers, sizeof(handlers));
227 0972d8b2 2021-03-02 op load_page_from_str(struct tab *tab, const char *page)
229 0972d8b2 2021-03-02 op gemtext_initparser(&tab->page);
230 3a9b9365 2021-03-09 op if (!tab->page.parse(&tab->page, page, strlen(page)))
232 0972d8b2 2021-03-02 op if (!tab->page.free(&tab->page))
234 0972d8b2 2021-03-02 op ui_on_tab_refresh(tab);
235 8af5e5ed 2021-03-08 op ui_on_tab_loaded(tab);
239 4d3785b1 2021-03-09 op load_about_url(struct tab *tab, const char *url)
245 4d3785b1 2021-03-09 op memset(&tab->url, 0, sizeof(tab->url));
247 4d3785b1 2021-03-09 op m = strchr(url, ':');
248 4d3785b1 2021-03-09 op strlcpy(tab->url.scheme, "about", sizeof(tab->url.scheme));
249 4d3785b1 2021-03-09 op strlcpy(tab->url.path, m+1, sizeof(tab->url.path));
251 2051e653 2021-03-13 op len = sizeof(tab->hist_cur->h)-1;
252 2051e653 2021-03-13 op strlcpy(tab->hist_cur->h, url, len);
254 35e1f40a 2021-03-14 op gemtext_initparser(&tab->page);
256 35e1f40a 2021-03-14 op imsg_compose(fsibuf, IMSG_GET, tab->id, 0, -1,
257 35e1f40a 2021-03-14 op tab->hist_cur->h, len+1);
258 35e1f40a 2021-03-14 op imsg_flush(fsibuf);
262 4d3785b1 2021-03-09 op load_gemini_url(struct tab *tab, const char *url)
264 4d3785b1 2021-03-09 op const char *err;
268 754622a2 2021-03-15 op len = sizeof(tab->hist_cur->h)-1;
270 4d3785b1 2021-03-09 op if (has_prefix(url, "gemini:")) {
271 4d3785b1 2021-03-09 op if (!url_parse(url, &tab->url, &err))
274 4d3785b1 2021-03-09 op if (!url_resolve_from(&tab->url, url, &err))
278 2051e653 2021-03-13 op url_unparse(&tab->url, tab->hist_cur->h, len);
279 1b8a4bbf 2021-03-12 op imsg_compose(netibuf, IMSG_GET, tab->id, 0, -1,
280 2051e653 2021-03-13 op tab->hist_cur->h, len+1);
281 1b8a4bbf 2021-03-12 op imsg_flush(netibuf);
285 4d3785b1 2021-03-09 op if (asprintf(&p, "#error loading %s\n>%s\n",
286 4d3785b1 2021-03-09 op url, err) == -1)
288 2051e653 2021-03-13 op strlcpy(tab->hist_cur->h, url, len);
289 4d3785b1 2021-03-09 op load_page_from_str(tab, p);
294 2051e653 2021-03-13 op do_load_url(struct tab *tab, const char *url)
296 4d3785b1 2021-03-09 op struct proto *p;
298 4d3785b1 2021-03-09 op for (p = protos; p->schema != NULL; ++p) {
299 4d3785b1 2021-03-09 op if (has_prefix(url, p->schema)) {
300 4d3785b1 2021-03-09 op p->loadfn(tab, url);
305 4d3785b1 2021-03-09 op protos[0].loadfn(tab, url);
309 2051e653 2021-03-13 op load_url(struct tab *tab, const char *url)
311 2051e653 2021-03-13 op if (tab->hist_cur != NULL)
312 2051e653 2021-03-13 op hist_clear_forward(&tab->hist, TAILQ_NEXT(tab->hist_cur, entries));
314 2051e653 2021-03-13 op if ((tab->hist_cur = calloc(1, sizeof(*tab->hist_cur))) == NULL) {
315 2051e653 2021-03-13 op event_loopbreak();
318 2051e653 2021-03-13 op hist_push(&tab->hist, tab->hist_cur);
319 2051e653 2021-03-13 op do_load_url(tab, url);
323 2051e653 2021-03-13 op load_previous_page(struct tab *tab)
325 2051e653 2021-03-13 op struct hist *h;
327 2051e653 2021-03-13 op if ((h = TAILQ_PREV(tab->hist_cur, mhisthead, entries)) == NULL)
329 2051e653 2021-03-13 op tab->hist_cur = h;
330 2051e653 2021-03-13 op do_load_url(tab, h->h);
335 2051e653 2021-03-13 op load_next_page(struct tab *tab)
337 2051e653 2021-03-13 op struct hist *h;
339 2051e653 2021-03-13 op if ((h = TAILQ_NEXT(tab->hist_cur, entries)) == NULL)
341 2051e653 2021-03-13 op tab->hist_cur = h;
342 2051e653 2021-03-13 op do_load_url(tab, h->h);
347 9ad4627d 2021-03-10 op stop_tab(struct tab *tab)
349 1b8a4bbf 2021-03-12 op imsg_compose(netibuf, IMSG_STOP, tab->id, 0, -1, NULL, 0);
350 1b8a4bbf 2021-03-12 op imsg_flush(netibuf);
354 740f578b 2021-03-15 op add_to_bookmarks(const char *str)
356 740f578b 2021-03-15 op imsg_compose(fsibuf, IMSG_BOOKMARK_PAGE, 0, 0, -1, str, strlen(str)+1);
357 740f578b 2021-03-15 op imsg_flush(fsibuf);
363 35e1f40a 2021-03-14 op struct imsgbuf network_ibuf, fs_ibuf;
364 35e1f40a 2021-03-14 op int net_fds[2], fs_fds[2];
367 35e1f40a 2021-03-14 op pid = getpid();
369 5e11c00c 2021-03-02 op signal(SIGCHLD, SIG_IGN);
371 35e1f40a 2021-03-14 op if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, fs_fds) == -1)
372 5e11c00c 2021-03-02 op err(1, "socketpair");
374 5e11c00c 2021-03-02 op switch (fork()) {
376 5e11c00c 2021-03-02 op err(1, "fork");
379 35e1f40a 2021-03-14 op setproctitle("(%d) fs", pid);
380 35e1f40a 2021-03-14 op close(fs_fds[0]);
381 35e1f40a 2021-03-14 op imsg_init(&fs_ibuf, fs_fds[1]);
382 35e1f40a 2021-03-14 op exit(fs_main(&fs_ibuf));
384 35e1f40a 2021-03-14 op close(fs_fds[1]);
385 35e1f40a 2021-03-14 op imsg_init(&fs_ibuf, fs_fds[0]);
386 35e1f40a 2021-03-14 op fsibuf = &fs_ibuf;
389 35e1f40a 2021-03-14 op if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, net_fds) == -1)
390 35e1f40a 2021-03-14 op err(1, "socketpair");
392 35e1f40a 2021-03-14 op switch (fork()) {
394 35e1f40a 2021-03-14 op err(1, "fork");
397 35e1f40a 2021-03-14 op setproctitle("(%d) client", pid);
398 35e1f40a 2021-03-14 op close(net_fds[0]);
399 35e1f40a 2021-03-14 op close(fs_fds[0]);
400 35e1f40a 2021-03-14 op imsg_init(&network_ibuf, net_fds[1]);
401 35e1f40a 2021-03-14 op exit(client_main(&network_ibuf));
403 35e1f40a 2021-03-14 op close(net_fds[1]);
404 35e1f40a 2021-03-14 op imsg_init(&network_ibuf, net_fds[0]);
405 35e1f40a 2021-03-14 op netibuf = &network_ibuf;
408 35e1f40a 2021-03-14 op setproctitle("(%d) ui", pid);
410 5e11c00c 2021-03-02 op TAILQ_INIT(&tabshead);
412 5e11c00c 2021-03-02 op event_init();
414 1304bbdd 2021-03-15 op event_set(&netev, netibuf->fd, EV_READ | EV_PERSIST, handle_dispatch_imsg, netibuf);
415 35e1f40a 2021-03-14 op event_add(&netev, NULL);
417 1304bbdd 2021-03-15 op event_set(&fsev, fsibuf->fd, EV_READ | EV_PERSIST, handle_dispatch_imsg, fsibuf);
418 35e1f40a 2021-03-14 op event_add(&fsev, NULL);
422 b1d4d01b 2021-03-14 op sandbox_ui_process();
424 5e11c00c 2021-03-02 op event_dispatch();
426 1b8a4bbf 2021-03-12 op imsg_compose(netibuf, IMSG_QUIT, 0, 0, -1, NULL, 0);
427 1b8a4bbf 2021-03-12 op imsg_flush(netibuf);
429 35e1f40a 2021-03-14 op imsg_compose(fsibuf, IMSG_QUIT, 0, 0, -1, NULL, 0);
430 35e1f40a 2021-03-14 op imsg_flush(fsibuf);