2 4540067e 2021-07-18 op * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
4 4540067e 2021-07-18 op * Permission to use, copy, modify, and distribute this software for any
5 4540067e 2021-07-18 op * purpose with or without fee is hereby granted, provided that the above
6 4540067e 2021-07-18 op * copyright notice and this permission notice appear in all copies.
8 4540067e 2021-07-18 op * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 4540067e 2021-07-18 op * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 4540067e 2021-07-18 op * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 4540067e 2021-07-18 op * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 4540067e 2021-07-18 op * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 4540067e 2021-07-18 op * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 4540067e 2021-07-18 op * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 5e11c00c 2021-03-02 op #include <sys/socket.h>
19 5e11c00c 2021-03-02 op #include <errno.h>
20 dc761924 2021-07-15 op #include <getopt.h>
21 d2544989 2021-07-08 op #include <limits.h>
22 5e11c00c 2021-03-02 op #include <signal.h>
23 5e11c00c 2021-03-02 op #include <stdio.h>
24 5e11c00c 2021-03-02 op #include <stdlib.h>
25 5e11c00c 2021-03-02 op #include <string.h>
26 5e11c00c 2021-03-02 op #include <unistd.h>
28 e659558c 2021-07-13 op #include "defaults.h"
29 395b9f4e 2021-07-12 op #include "parser.h"
30 395b9f4e 2021-07-12 op #include "telescope.h"
31 d1a0f2a3 2021-07-12 op #include "ui.h"
33 dc761924 2021-07-15 op static struct option longopts[] = {
34 1853ee50 2021-07-15 op {"colors", no_argument, NULL, 'c'},
35 dc761924 2021-07-15 op {"help", no_argument, NULL, 'h'},
36 dc761924 2021-07-15 op {"version", no_argument, NULL, 'v'},
37 dc761924 2021-07-15 op {NULL, 0, NULL, 0},
40 1853ee50 2021-07-15 op static const char *opts = "Cc:hnT:v";
42 bc10f6a5 2021-07-12 op static struct imsgev *iev_fs, *iev_net;
44 f6a429eb 2021-07-10 op struct tabshead tabshead = TAILQ_HEAD_INITIALIZER(tabshead);
45 f6a429eb 2021-07-10 op struct proxylist proxies = TAILQ_HEAD_INITIALIZER(proxies);
47 6cc5fcfe 2021-07-08 op enum telescope_process {
53 c07ac996 2021-03-12 op /* the first is also the fallback one */
54 c07ac996 2021-03-12 op static struct proto protos[] = {
55 31f1a758 2021-04-22 op { "gemini", load_gemini_url },
56 31f1a758 2021-04-22 op { "about", load_about_url },
57 4d3785b1 2021-03-09 op { NULL, NULL },
61 9a8a7402 2021-07-18 op #define CANNOT_FETCH 0
62 9a8a7402 2021-07-18 op #define TOO_MUCH_REDIRECTS 1
63 9a8a7402 2021-07-18 op #define MALFORMED_RESPONSE 2
64 9a8a7402 2021-07-18 op #define UNKNOWN_TYPE_OR_CSET 3
65 9a8a7402 2021-07-18 op #define UNKNOWN_PROTOCOL 4
67 9a8a7402 2021-07-18 op /* XXX: keep in sync with telescope.c:/^normalize_code/ */
68 9a8a7402 2021-07-18 op const char *err_pages[70] = {
69 9a8a7402 2021-07-18 op [CANNOT_FETCH] = "# Couldn't load the page\n",
70 9a8a7402 2021-07-18 op [TOO_MUCH_REDIRECTS] = "# Too much redirects\n",
71 9a8a7402 2021-07-18 op [MALFORMED_RESPONSE] = "# Got a malformed response\n",
72 9a8a7402 2021-07-18 op [UNKNOWN_TYPE_OR_CSET] = "# Unsupported type or charset\n",
73 9a8a7402 2021-07-18 op [UNKNOWN_PROTOCOL] = "# Unknown protocol\n",
75 9a8a7402 2021-07-18 op [10] = "# Input required\n",
76 9a8a7402 2021-07-18 op [11] = "# Input required\n",
77 9a8a7402 2021-07-18 op [40] = "# Temporary failure\n",
78 9a8a7402 2021-07-18 op [41] = "# Server unavailable\n",
79 9a8a7402 2021-07-18 op [42] = "# CGI error\n",
80 9a8a7402 2021-07-18 op [43] = "# Proxy error\n",
81 9a8a7402 2021-07-18 op [44] = "# Slow down\n",
82 9a8a7402 2021-07-18 op [50] = "# Permanent failure\n",
83 9a8a7402 2021-07-18 op [51] = "# Not found\n",
84 9a8a7402 2021-07-18 op [52] = "# Gone\n",
85 9a8a7402 2021-07-18 op [53] = "# Proxy request refused\n",
86 9a8a7402 2021-07-18 op [59] = "# Bad request\n",
87 9a8a7402 2021-07-18 op [60] = "# Client certificate required\n",
88 9a8a7402 2021-07-18 op [61] = "# Certificate not authorised\n",
89 9a8a7402 2021-07-18 op [62] = "# Certificate not valid\n"
92 2051e653 2021-03-13 op static void die(void) __attribute__((__noreturn__));
93 2051e653 2021-03-13 op static struct tab *tab_by_id(uint32_t);
94 2051e653 2021-03-13 op static void handle_imsg_err(struct imsg*, size_t);
95 2051e653 2021-03-13 op static void handle_imsg_check_cert(struct imsg*, size_t);
96 a2fd3805 2021-07-06 op static void handle_check_cert_user_choice(int, struct tab *);
97 a2fd3805 2021-07-06 op static void handle_maybe_save_new_cert(int, struct tab *);
98 2051e653 2021-03-13 op static void handle_imsg_got_code(struct imsg*, size_t);
99 2051e653 2021-03-13 op static void handle_imsg_got_meta(struct imsg*, size_t);
100 a2fd3805 2021-07-06 op static void handle_maybe_save_page(int, struct tab *);
101 d1353324 2021-07-13 op static void handle_save_page_path(const char *, struct tab *);
102 de2a69bb 2021-05-17 op static void handle_imsg_file_opened(struct imsg*, size_t);
103 2051e653 2021-03-13 op static void handle_imsg_buf(struct imsg*, size_t);
104 2051e653 2021-03-13 op static void handle_imsg_eof(struct imsg*, size_t);
105 740f578b 2021-03-15 op static void handle_imsg_bookmark_ok(struct imsg*, size_t);
106 3a227e9a 2021-03-18 op static void handle_imsg_save_cert_ok(struct imsg*, size_t);
107 288fd238 2021-04-25 op static void handle_imsg_update_cert_ok(struct imsg *, size_t);
108 1304bbdd 2021-03-15 op static void handle_dispatch_imsg(int, short, void*);
109 2051e653 2021-03-13 op static void load_page_from_str(struct tab*, const char*);
110 adea4eec 2021-07-16 op static int do_load_url(struct tab*, const char*);
111 2f524b17 2021-07-17 op static void parse_session_line(char *, const char **, uint32_t *);
112 87e3e801 2021-07-17 op static void load_last_session(void);
113 6cc5fcfe 2021-07-08 op static pid_t start_child(enum telescope_process, const char *, int);
114 bc10f6a5 2021-07-12 op static int ui_send_net(int, uint32_t, const void *, uint16_t);
115 bc10f6a5 2021-07-12 op static int ui_send_fs(int, uint32_t, const void *, uint16_t);
117 5e11c00c 2021-03-02 op static imsg_handlerfn *handlers[] = {
118 5e11c00c 2021-03-02 op [IMSG_ERR] = handle_imsg_err,
119 5e11c00c 2021-03-02 op [IMSG_CHECK_CERT] = handle_imsg_check_cert,
120 5e11c00c 2021-03-02 op [IMSG_GOT_CODE] = handle_imsg_got_code,
121 5e11c00c 2021-03-02 op [IMSG_GOT_META] = handle_imsg_got_meta,
122 5e11c00c 2021-03-02 op [IMSG_BUF] = handle_imsg_buf,
123 5e11c00c 2021-03-02 op [IMSG_EOF] = handle_imsg_eof,
124 740f578b 2021-03-15 op [IMSG_BOOKMARK_OK] = handle_imsg_bookmark_ok,
125 3a227e9a 2021-03-18 op [IMSG_SAVE_CERT_OK] = handle_imsg_save_cert_ok,
126 288fd238 2021-04-25 op [IMSG_UPDATE_CERT_OK] = handle_imsg_update_cert_ok,
127 de2a69bb 2021-05-17 op [IMSG_FILE_OPENED] = handle_imsg_file_opened,
130 cbcc75fb 2021-03-17 op static struct ohash certs;
132 5e11c00c 2021-03-02 op static void __attribute__((__noreturn__))
135 5e11c00c 2021-03-02 op abort(); /* TODO */
138 5e11c00c 2021-03-02 op static struct tab *
139 5e11c00c 2021-03-02 op tab_by_id(uint32_t id)
141 5e11c00c 2021-03-02 op struct tab *t;
143 5e11c00c 2021-03-02 op TAILQ_FOREACH(t, &tabshead, tabs) {
144 5e11c00c 2021-03-02 op if (t->id == id)
152 5e11c00c 2021-03-02 op handle_imsg_err(struct imsg *imsg, size_t datalen)
154 3a9b9365 2021-03-09 op struct tab *tab;
157 3a9b9365 2021-03-09 op tab = tab_by_id(imsg->hdr.peerid);
159 3a9b9365 2021-03-09 op page = imsg->data;
160 3a9b9365 2021-03-09 op page[datalen-1] = '\0';
162 3a9b9365 2021-03-09 op if (asprintf(&page, "# Error loading %s\n\n> %s\n",
163 2051e653 2021-03-13 op tab->hist_cur->h, page) == -1)
165 3a9b9365 2021-03-09 op load_page_from_str(tab, page);
170 5e11c00c 2021-03-02 op handle_imsg_check_cert(struct imsg *imsg, size_t datalen)
172 984245ce 2021-06-23 op const char *hash, *host, *port;
173 cbcc75fb 2021-03-17 op int tofu_res;
174 cbcc75fb 2021-03-17 op struct tofu_entry *e;
175 cbcc75fb 2021-03-17 op struct tab *tab;
177 cbcc75fb 2021-03-17 op hash = imsg->data;
178 cbcc75fb 2021-03-17 op if (hash[datalen-1] != '\0')
181 10346511 2021-03-17 op tab = tab_by_id(imsg->hdr.peerid);
183 984245ce 2021-06-23 op if (tab->proxy != NULL) {
184 984245ce 2021-06-23 op host = tab->proxy->host;
185 984245ce 2021-06-23 op port = tab->proxy->port;
187 984245ce 2021-06-23 op host = tab->uri.host;
188 984245ce 2021-06-23 op port = tab->uri.port;
191 984245ce 2021-06-23 op if ((e = tofu_lookup(&certs, host, port)) == NULL) {
192 cbcc75fb 2021-03-17 op /* TODO: an update in libressl/libretls changed
193 cbcc75fb 2021-03-17 op * significantly. Find a better approach at storing
194 cbcc75fb 2021-03-17 op * the certs! */
195 cbcc75fb 2021-03-17 op if (datalen > sizeof(e->hash))
198 cbcc75fb 2021-03-17 op tofu_res = 1; /* trust on first use */
199 cbcc75fb 2021-03-17 op if ((e = calloc(1, sizeof(*e))) == NULL)
201 984245ce 2021-06-23 op strlcpy(e->domain, host, sizeof(e->domain));
202 984245ce 2021-06-23 op if (*port != '\0' && strcmp(port, "1965")) {
203 eb4388ee 2021-04-25 op strlcat(e->domain, ":", sizeof(e->domain));
204 984245ce 2021-06-23 op strlcat(e->domain, port, sizeof(e->domain));
206 cbcc75fb 2021-03-17 op strlcpy(e->hash, hash, sizeof(e->hash));
207 3768e50f 2021-04-25 op tofu_add(&certs, e);
208 bc10f6a5 2021-07-12 op ui_send_fs(IMSG_SAVE_CERT, tab->id, e, sizeof(*e));
210 cbcc75fb 2021-03-17 op tofu_res = !strcmp(hash, e->hash);
212 5d1bac73 2021-03-25 op if (tofu_res) {
213 a2fd3805 2021-07-06 op if (e->verified == -1)
214 a2fd3805 2021-07-06 op tab->trust = TS_TEMP_TRUSTED;
215 a2fd3805 2021-07-06 op else if (e->verified == 1)
216 a2fd3805 2021-07-06 op tab->trust = TS_VERIFIED;
218 a2fd3805 2021-07-06 op tab->trust = TS_TRUSTED;
220 bc10f6a5 2021-07-12 op ui_send_net(IMSG_CERT_STATUS, imsg->hdr.peerid,
221 5d1bac73 2021-03-25 op &tofu_res, sizeof(tofu_res));
223 cbcc75fb 2021-03-17 op tab->trust = TS_UNTRUSTED;
224 cbcc75fb 2021-03-17 op load_page_from_str(tab, "# Certificate mismatch\n");
225 288fd238 2021-04-25 op if ((tab->cert = strdup(hash)) == NULL)
227 5d1bac73 2021-03-25 op ui_yornp("Certificate mismatch. Proceed?",
228 a2fd3805 2021-07-06 op handle_check_cert_user_choice, tab);
233 a2fd3805 2021-07-06 op handle_check_cert_user_choice(int accept, struct tab *tab)
235 bc10f6a5 2021-07-12 op ui_send_net(IMSG_CERT_STATUS, tab->id, &accept,
236 bc10f6a5 2021-07-12 op sizeof(accept));
238 a2fd3805 2021-07-06 op if (accept) {
240 a2fd3805 2021-07-06 op * trust the certificate for this session only. If
241 a2fd3805 2021-07-06 op * the page results in a redirect while we're asking
242 a2fd3805 2021-07-06 op * the user to save, we'll end up with an invalid
243 a2fd3805 2021-07-06 op * tabid (one request == one tab id) and crash. It
244 a2fd3805 2021-07-06 op * also makes sense to save it for the current session
245 a2fd3805 2021-07-06 op * if the user accepted it.
247 a2fd3805 2021-07-06 op tofu_temp_trust(&certs, tab->uri.host, tab->uri.port, tab->cert);
249 288fd238 2021-04-25 op ui_yornp("Save the new certificate?",
250 a2fd3805 2021-07-06 op handle_maybe_save_new_cert, tab);
252 288fd238 2021-04-25 op free(tab->cert);
253 288fd238 2021-04-25 op tab->cert = NULL;
258 a2fd3805 2021-07-06 op handle_maybe_save_new_cert(int accept, struct tab *tab)
260 288fd238 2021-04-25 op struct tofu_entry *e;
261 984245ce 2021-06-23 op const char *host, *port;
263 984245ce 2021-06-23 op if (tab->proxy != NULL) {
264 984245ce 2021-06-23 op host = tab->proxy->host;
265 984245ce 2021-06-23 op port = tab->proxy->port;
267 984245ce 2021-06-23 op host = tab->uri.host;
268 984245ce 2021-06-23 op port = tab->uri.port;
274 fe2262ad 2021-05-12 op if ((e = calloc(1, sizeof(*e))) == NULL)
277 984245ce 2021-06-23 op strlcpy(e->domain, host, sizeof(e->domain));
278 984245ce 2021-06-23 op if (*port != '\0' && strcmp(port, "1965")) {
279 288fd238 2021-04-25 op strlcat(e->domain, ":", sizeof(e->domain));
280 984245ce 2021-06-23 op strlcat(e->domain, port, sizeof(e->domain));
282 288fd238 2021-04-25 op strlcpy(e->hash, tab->cert, sizeof(e->hash));
283 bc10f6a5 2021-07-12 op ui_send_fs(IMSG_UPDATE_CERT, 0, e, sizeof(*e));
285 288fd238 2021-04-25 op tofu_update(&certs, e);
287 288fd238 2021-04-25 op tab->trust = TS_TRUSTED;
290 288fd238 2021-04-25 op free(tab->cert);
291 288fd238 2021-04-25 op tab->cert = NULL;
294 5cd2ebb1 2021-03-11 op static inline int
295 5cd2ebb1 2021-03-11 op normalize_code(int n)
297 5cd2ebb1 2021-03-11 op if (n < 20) {
298 5cd2ebb1 2021-03-11 op if (n == 10 || n == 11)
301 5cd2ebb1 2021-03-11 op } else if (n < 30) {
303 5cd2ebb1 2021-03-11 op } else if (n < 40) {
304 5cd2ebb1 2021-03-11 op if (n == 30 || n == 31)
307 5cd2ebb1 2021-03-11 op } else if (n < 50) {
311 5cd2ebb1 2021-03-11 op } else if (n < 60) {
312 5cd2ebb1 2021-03-11 op if (n <= 53 || n == 59)
315 5cd2ebb1 2021-03-11 op } else if (n < 70) {
320 5cd2ebb1 2021-03-11 op return MALFORMED_RESPONSE;
324 5e11c00c 2021-03-02 op handle_imsg_got_code(struct imsg *imsg, size_t datalen)
326 0972d8b2 2021-03-02 op struct tab *tab;
328 0972d8b2 2021-03-02 op tab = tab_by_id(imsg->hdr.peerid);
330 0972d8b2 2021-03-02 op if (sizeof(tab->code) != datalen)
333 5cd2ebb1 2021-03-11 op memcpy(&tab->code, imsg->data, sizeof(tab->code));
334 5cd2ebb1 2021-03-11 op tab->code = normalize_code(tab->code);
335 5cd2ebb1 2021-03-11 op if (tab->code != 30 && tab->code != 31)
336 0972d8b2 2021-03-02 op tab->redirect_count = 0;
340 5e11c00c 2021-03-02 op handle_imsg_got_meta(struct imsg *imsg, size_t datalen)
342 0972d8b2 2021-03-02 op struct tab *tab;
344 0972d8b2 2021-03-02 op tab = tab_by_id(imsg->hdr.peerid);
346 0972d8b2 2021-03-02 op if (sizeof(tab->meta) <= datalen)
349 0972d8b2 2021-03-02 op memcpy(tab->meta, imsg->data, datalen);
351 5cd2ebb1 2021-03-11 op if (tab->code < 10) { /* internal errors */
352 5cd2ebb1 2021-03-11 op load_page_from_str(tab, err_pages[tab->code]);
353 5cd2ebb1 2021-03-11 op } else if (tab->code < 20) { /* 1x */
354 5cd2ebb1 2021-03-11 op load_page_from_str(tab, err_pages[tab->code]);
355 5cd2ebb1 2021-03-11 op ui_require_input(tab, tab->code == 11);
356 5cd2ebb1 2021-03-11 op } else if (tab->code == 20) {
357 c07ac996 2021-03-12 op if (setup_parser_for(tab)) {
358 bc10f6a5 2021-07-12 op ui_send_net(IMSG_PROCEED, tab->id, NULL, 0);
360 c07ac996 2021-03-12 op load_page_from_str(tab, err_pages[UNKNOWN_TYPE_OR_CSET]);
361 de2a69bb 2021-05-17 op ui_yornp("Can't display page, wanna save?",
362 a2fd3805 2021-07-06 op handle_maybe_save_page, tab);
364 5cd2ebb1 2021-03-11 op } else if (tab->code < 40) { /* 3x */
365 3a9b9365 2021-03-09 op tab->redirect_count++;
367 3a9b9365 2021-03-09 op /* TODO: make customizable? */
368 3a9b9365 2021-03-09 op if (tab->redirect_count > 5) {
369 3a9b9365 2021-03-09 op load_page_from_str(tab,
370 3a9b9365 2021-03-09 op err_pages[TOO_MUCH_REDIRECTS]);
372 2051e653 2021-03-13 op do_load_url(tab, tab->meta);
373 5cd2ebb1 2021-03-11 op } else { /* 4x, 5x & 6x */
374 5cd2ebb1 2021-03-11 op load_page_from_str(tab, err_pages[tab->code]);
379 a2fd3805 2021-07-06 op handle_maybe_save_page(int dosave, struct tab *tab)
382 d1353324 2021-07-13 op ui_read("Save to path", handle_save_page_path, tab);
384 a2fd3805 2021-07-06 op stop_tab(tab);
388 d1353324 2021-07-13 op handle_save_page_path(const char *path, struct tab *tab)
390 de2a69bb 2021-05-17 op if (path == NULL) {
391 d1353324 2021-07-13 op stop_tab(tab);
395 de2a69bb 2021-05-17 op tab->path = strdup(path);
397 d1353324 2021-07-13 op ui_send_fs(IMSG_FILE_OPEN, tab->id, path, strlen(path)+1);
401 de2a69bb 2021-05-17 op handle_imsg_file_opened(struct imsg *imsg, size_t datalen)
403 de2a69bb 2021-05-17 op struct tab *tab;
405 de2a69bb 2021-05-17 op const char *e;
408 de2a69bb 2021-05-17 op tab = tab_by_id(imsg->hdr.peerid);
410 de2a69bb 2021-05-17 op if (imsg->fd == -1) {
411 de2a69bb 2021-05-17 op stop_tab(tab);
413 de2a69bb 2021-05-17 op e = imsg->data;
414 de2a69bb 2021-05-17 op if (e[datalen-1] != '\0')
416 de2a69bb 2021-05-17 op l = asprintf(&page, "# Can't open file\n\n> %s: %s\n",
417 de2a69bb 2021-05-17 op tab->path, e);
420 de2a69bb 2021-05-17 op load_page_from_str(tab, page);
423 de2a69bb 2021-05-17 op tab->fd = imsg->fd;
424 bc10f6a5 2021-07-12 op ui_send_net(IMSG_PROCEED, tab->id, NULL, 0);
429 5e11c00c 2021-03-02 op handle_imsg_buf(struct imsg *imsg, size_t datalen)
431 0972d8b2 2021-03-02 op struct tab *tab;
433 0e1eff5b 2021-06-23 op char *page, buf[FMT_SCALED_STRSIZE] = {0};
435 0972d8b2 2021-03-02 op tab = tab_by_id(imsg->hdr.peerid);
437 de2a69bb 2021-05-17 op tab->bytes += datalen;
438 de2a69bb 2021-05-17 op if (tab->fd == -1) {
439 46f6e974 2021-05-17 op if (!tab->buffer.page.parse(&tab->buffer.page,
440 de2a69bb 2021-05-17 op imsg->data, datalen))
443 de2a69bb 2021-05-17 op write(tab->fd, imsg->data, datalen);
444 0e1eff5b 2021-06-23 op fmt_scaled(tab->bytes, buf);
445 0e1eff5b 2021-06-23 op l = asprintf(&page, "Saving to \"%s\"... (%s)\n",
450 de2a69bb 2021-05-17 op load_page_from_str(tab, page);
454 0972d8b2 2021-03-02 op ui_on_tab_refresh(tab);
458 5e11c00c 2021-03-02 op handle_imsg_eof(struct imsg *imsg, size_t datalen)
460 2ba66cea 2021-03-22 op struct tab *tab;
462 0e1eff5b 2021-06-23 op char *page, buf[FMT_SCALED_STRSIZE] = {0};
464 2ba66cea 2021-03-22 op tab = tab_by_id(imsg->hdr.peerid);
466 de2a69bb 2021-05-17 op if (tab->fd == -1) {
467 46f6e974 2021-05-17 op if (!tab->buffer.page.free(&tab->buffer.page))
470 0e1eff5b 2021-06-23 op fmt_scaled(tab->bytes, buf);
471 0e1eff5b 2021-06-23 op l = asprintf(&page, "Saved to \"%s\" (%s)\n",
476 de2a69bb 2021-05-17 op load_page_from_str(tab, page);
479 de2a69bb 2021-05-17 op close(tab->fd);
480 de2a69bb 2021-05-17 op tab->fd = -1;
481 de2a69bb 2021-05-17 op free(tab->path);
482 de2a69bb 2021-05-17 op tab->path = NULL;
485 2ba66cea 2021-03-22 op ui_on_tab_refresh(tab);
486 2ba66cea 2021-03-22 op ui_on_tab_loaded(tab);
490 740f578b 2021-03-15 op handle_imsg_bookmark_ok(struct imsg *imsg, size_t datalen)
494 740f578b 2021-03-15 op if (datalen != sizeof(res))
497 740f578b 2021-03-15 op memcpy(&res, imsg->data, sizeof(res));
498 740f578b 2021-03-15 op if (res == 0)
499 7f963c41 2021-06-20 op message("Added to bookmarks!");
501 7f963c41 2021-06-20 op message("Failed to add to bookmarks: %s",
502 740f578b 2021-03-15 op strerror(res));
506 3a227e9a 2021-03-18 op handle_imsg_save_cert_ok(struct imsg *imsg, size_t datalen)
510 3a227e9a 2021-03-18 op if (datalen != sizeof(res))
512 3a227e9a 2021-03-18 op memcpy(&res, imsg->data, datalen);
513 3a227e9a 2021-03-18 op if (res != 0)
514 7f963c41 2021-06-20 op message("Failed to save the cert for: %s",
515 3a227e9a 2021-03-18 op strerror(res));
519 288fd238 2021-04-25 op handle_imsg_update_cert_ok(struct imsg *imsg, size_t datalen)
523 288fd238 2021-04-25 op if (datalen != sizeof(res))
525 288fd238 2021-04-25 op memcpy(&res, imsg->data, datalen);
527 7f963c41 2021-06-20 op message("Failed to update the certificate");
531 1304bbdd 2021-03-15 op handle_dispatch_imsg(int fd, short ev, void *d)
533 bc10f6a5 2021-07-12 op struct imsgev *iev = d;
534 bc10f6a5 2021-07-12 op dispatch_imsg(iev, ev, handlers, sizeof(handlers));
538 0972d8b2 2021-03-02 op load_page_from_str(struct tab *tab, const char *page)
540 00ccb53d 2021-07-01 op erase_buffer(&tab->buffer);
541 46f6e974 2021-05-17 op gemtext_initparser(&tab->buffer.page);
542 46f6e974 2021-05-17 op if (!tab->buffer.page.parse(&tab->buffer.page, page, strlen(page)))
544 46f6e974 2021-05-17 op if (!tab->buffer.page.free(&tab->buffer.page))
546 0972d8b2 2021-03-02 op ui_on_tab_refresh(tab);
547 8af5e5ed 2021-03-08 op ui_on_tab_loaded(tab);
551 4d3785b1 2021-03-09 op load_about_url(struct tab *tab, const char *url)
553 10346511 2021-03-17 op tab->trust = TS_VERIFIED;
555 46f6e974 2021-05-17 op gemtext_initparser(&tab->buffer.page);
557 bc10f6a5 2021-07-12 op ui_send_fs(IMSG_GET, tab->id,
558 31f1a758 2021-04-22 op tab->hist_cur->h, strlen(tab->hist_cur->h)+1);
562 4d3785b1 2021-03-09 op load_gemini_url(struct tab *tab, const char *url)
564 984245ce 2021-06-23 op struct get_req req;
566 2eef3403 2021-04-22 op stop_tab(tab);
567 2eef3403 2021-04-22 op tab->id = tab_new_id();
569 984245ce 2021-06-23 op memset(&req, 0, sizeof(req));
570 984245ce 2021-06-23 op strlcpy(req.host, tab->uri.host, sizeof(req.host));
571 984245ce 2021-06-23 op strlcpy(req.port, tab->uri.port, sizeof(req.host));
573 984245ce 2021-06-23 op strlcpy(req.req, tab->hist_cur->h, sizeof(req.req));
574 984245ce 2021-06-23 op strlcat(req.req, "\r\n", sizeof(req.req));
576 984245ce 2021-06-23 op req.proto = PROTO_GEMINI;
578 bc10f6a5 2021-07-12 op ui_send_net(IMSG_GET_RAW, tab->id,
579 984245ce 2021-06-23 op &req, sizeof(req));
583 984245ce 2021-06-23 op load_via_proxy(struct tab *tab, const char *url, struct proxy *p)
585 984245ce 2021-06-23 op struct get_req req;
587 984245ce 2021-06-23 op stop_tab(tab);
588 984245ce 2021-06-23 op tab->id = tab_new_id();
589 984245ce 2021-06-23 op tab->proxy = p;
591 984245ce 2021-06-23 op memset(&req, 0, sizeof(req));
592 984245ce 2021-06-23 op strlcpy(req.host, p->host, sizeof(req.host));
593 984245ce 2021-06-23 op strlcpy(req.port, p->port, sizeof(req.host));
595 984245ce 2021-06-23 op strlcpy(req.req, tab->hist_cur->h, sizeof(req.req));
596 984245ce 2021-06-23 op strlcat(req.req, "\r\n", sizeof(req.req));
598 984245ce 2021-06-23 op req.proto = p->proto;
600 bc10f6a5 2021-07-12 op ui_send_net(IMSG_GET_RAW, tab->id,
601 984245ce 2021-06-23 op &req, sizeof(req));
605 adea4eec 2021-07-16 op * Effectively load the given url in the given tab. Return 1 when
606 adea4eec 2021-07-16 op * loading the page asynchronously, and thus when an erase_buffer can
607 adea4eec 2021-07-16 op * be done right after this function return, or 0 when loading the
608 adea4eec 2021-07-16 op * page synchronously. In this last case, erase_buffer *MUST* be
609 adea4eec 2021-07-16 op * called by the handling function (such as load_page_from_str).
612 2051e653 2021-03-13 op do_load_url(struct tab *tab, const char *url)
614 31f1a758 2021-04-22 op struct phos_uri uri;
615 31f1a758 2021-04-22 op struct proto *p;
616 984245ce 2021-06-23 op struct proxy *proxy;
619 7943bb81 2021-07-10 op tab->proxy = NULL;
621 de2a69bb 2021-05-17 op if (tab->fd != -1) {
622 de2a69bb 2021-05-17 op close(tab->fd);
623 de2a69bb 2021-05-17 op tab->fd = -1;
624 de2a69bb 2021-05-17 op free(tab->path);
625 de2a69bb 2021-05-17 op tab->path = NULL;
628 10346511 2021-03-17 op tab->trust = TS_UNKNOWN;
630 31f1a758 2021-04-22 op memcpy(&uri, &tab->uri, sizeof(tab->uri));
631 31f1a758 2021-04-22 op if (!phos_resolve_uri_from_str(&uri, url, &tab->uri)) {
632 31f1a758 2021-04-22 op if (asprintf(&t, "#error loading %s\n>%s\n",
633 31f1a758 2021-04-22 op url, "Can't parse the URI") == -1)
635 31f1a758 2021-04-22 op strlcpy(tab->hist_cur->h, url, sizeof(tab->hist_cur->h));
636 31f1a758 2021-04-22 op load_page_from_str(tab, t);
641 31f1a758 2021-04-22 op phos_serialize_uri(&tab->uri, tab->hist_cur->h,
642 31f1a758 2021-04-22 op sizeof(tab->hist_cur->h));
644 4d3785b1 2021-03-09 op for (p = protos; p->schema != NULL; ++p) {
645 ed383cf4 2021-04-22 op if (!strcmp(tab->uri.scheme, p->schema)) {
646 4d3785b1 2021-03-09 op p->loadfn(tab, url);
651 984245ce 2021-06-23 op TAILQ_FOREACH(proxy, &proxies, proxies) {
652 984245ce 2021-06-23 op if (!strcmp(tab->uri.scheme, proxy->match_proto)) {
653 984245ce 2021-06-23 op load_via_proxy(tab, url, proxy);
658 adea4eec 2021-07-16 op load_page_from_str(tab, err_pages[UNKNOWN_PROTOCOL]);
663 2ddbda6b 2021-07-17 op * Load url in tab. If tab is marked as lazy, only prepare the url
664 2ddbda6b 2021-07-17 op * but don't load it. If tab is lazy and a url was already prepared,
665 2ddbda6b 2021-07-17 op * do load it!
668 2051e653 2021-03-13 op load_url(struct tab *tab, const char *url)
672 2ddbda6b 2021-07-17 op lazy = tab->flags & TAB_LAZY;
674 2ddbda6b 2021-07-17 op if (lazy && tab->hist_cur != NULL) {
676 2ddbda6b 2021-07-17 op tab->flags &= ~TAB_LAZY;
679 2ddbda6b 2021-07-17 op if (!lazy || tab->hist_cur == NULL) {
680 2ddbda6b 2021-07-17 op if (tab->hist_cur != NULL)
681 2ddbda6b 2021-07-17 op hist_clear_forward(&tab->hist,
682 2ddbda6b 2021-07-17 op TAILQ_NEXT(tab->hist_cur, entries));
684 2ddbda6b 2021-07-17 op if ((tab->hist_cur = calloc(1, sizeof(*tab->hist_cur))) == NULL) {
685 2ddbda6b 2021-07-17 op event_loopbreak();
689 2ddbda6b 2021-07-17 op strlcpy(tab->buffer.page.title, url,
690 2ddbda6b 2021-07-17 op sizeof(tab->buffer.page.title));
691 2ddbda6b 2021-07-17 op hist_push(&tab->hist, tab->hist_cur);
694 2ddbda6b 2021-07-17 op strlcpy(tab->hist_cur->h, url,
695 2ddbda6b 2021-07-17 op sizeof(tab->hist_cur->h));
698 2ddbda6b 2021-07-17 op if (!lazy && do_load_url(tab, url))
699 adea4eec 2021-07-16 op erase_buffer(&tab->buffer);
703 2051e653 2021-03-13 op load_previous_page(struct tab *tab)
705 2051e653 2021-03-13 op struct hist *h;
707 2051e653 2021-03-13 op if ((h = TAILQ_PREV(tab->hist_cur, mhisthead, entries)) == NULL)
709 2051e653 2021-03-13 op tab->hist_cur = h;
710 2051e653 2021-03-13 op do_load_url(tab, h->h);
715 2051e653 2021-03-13 op load_next_page(struct tab *tab)
717 2051e653 2021-03-13 op struct hist *h;
719 2051e653 2021-03-13 op if ((h = TAILQ_NEXT(tab->hist_cur, entries)) == NULL)
721 2051e653 2021-03-13 op tab->hist_cur = h;
722 2051e653 2021-03-13 op do_load_url(tab, h->h);
727 9ad4627d 2021-03-10 op stop_tab(struct tab *tab)
729 bc10f6a5 2021-07-12 op ui_send_net(IMSG_STOP, tab->id, NULL, 0);
731 de2a69bb 2021-05-17 op if (tab->fd != -1) {
732 de2a69bb 2021-05-17 op close(tab->fd);
733 de2a69bb 2021-05-17 op tab->fd = -1;
734 de2a69bb 2021-05-17 op free(tab->path);
735 de2a69bb 2021-05-17 op tab->path = NULL;
736 de2a69bb 2021-05-17 op load_page_from_str(tab, "Stopped.\n");
741 740f578b 2021-03-15 op add_to_bookmarks(const char *str)
743 bc10f6a5 2021-07-12 op ui_send_fs(IMSG_BOOKMARK_PAGE, 0,
744 bc10f6a5 2021-07-12 op str, strlen(str)+1);
748 c7107cec 2021-04-01 op save_session(void)
750 87e3e801 2021-07-17 op struct tab *tab;
754 bc10f6a5 2021-07-12 op ui_send_fs(IMSG_SESSION_START, 0, NULL, 0);
756 c7107cec 2021-04-01 op TAILQ_FOREACH(tab, &tabshead, tabs) {
757 87e3e801 2021-07-17 op flags = tab->flags;
758 87e3e801 2021-07-17 op if (tab == current_tab)
759 87e3e801 2021-07-17 op flags |= TAB_CURRENT;
761 2f524b17 2021-07-17 op t = tab->hist_cur->h;
762 2f524b17 2021-07-17 op ui_send_fs(IMSG_SESSION_TAB, flags, t, strlen(t)+1);
764 2f524b17 2021-07-17 op t = tab->buffer.page.title;
765 2f524b17 2021-07-17 op ui_send_fs(IMSG_SESSION_TAB_TITLE, 0, t, strlen(t)+1);
768 bc10f6a5 2021-07-12 op ui_send_fs(IMSG_SESSION_END, 0, NULL, 0);
772 87e3e801 2021-07-17 op * Parse a line of the session file. The format is:
774 2f524b17 2021-07-17 op * URL [flags,...] [title]\n
777 2f524b17 2021-07-17 op parse_session_line(char *line, const char **title, uint32_t *flags)
779 2f524b17 2021-07-17 op char *s, *t, *ap;
783 87e3e801 2021-07-17 op if ((s = strchr(line, ' ')) == NULL)
788 2f524b17 2021-07-17 op if ((t = strchr(s, ' ')) != NULL) {
793 87e3e801 2021-07-17 op while ((ap = strsep(&s, ",")) != NULL) {
794 87e3e801 2021-07-17 op if (*ap == '\0')
796 87e3e801 2021-07-17 op else if (!strcmp(ap, "current"))
797 87e3e801 2021-07-17 op *flags |= TAB_CURRENT;
799 87e3e801 2021-07-17 op message("unknown tab flag: %s", ap);
804 87e3e801 2021-07-17 op load_last_session(void)
806 2f524b17 2021-07-17 op const char *title;
807 87e3e801 2021-07-17 op char *nl, *line = NULL;
808 87e3e801 2021-07-17 op uint32_t flags;
809 87e3e801 2021-07-17 op size_t linesize = 0;
810 87e3e801 2021-07-17 op ssize_t linelen;
811 87e3e801 2021-07-17 op FILE *session;
812 259cf35a 2021-07-18 op struct tab *tab, *curr = NULL;
814 87e3e801 2021-07-17 op if ((session = fopen(session_file, "r")) == NULL) {
815 87e3e801 2021-07-17 op /* first time? */
816 9a8a7402 2021-07-18 op new_tab("about:new");
817 9a8a7402 2021-07-18 op switch_to_tab(new_tab("about:help"));
821 87e3e801 2021-07-17 op while ((linelen = getline(&line, &linesize, session)) != -1) {
822 87e3e801 2021-07-17 op if ((nl = strchr(line, '\n')) != NULL)
824 2f524b17 2021-07-17 op parse_session_line(line, &title, &flags);
825 87e3e801 2021-07-17 op if ((tab = new_tab(line)) == NULL)
826 2f524b17 2021-07-17 op err(1, "new_tab");
827 2f524b17 2021-07-17 op strlcpy(tab->buffer.page.title, title,
828 2f524b17 2021-07-17 op sizeof(tab->buffer.page.title));
829 87e3e801 2021-07-17 op if (flags & TAB_CURRENT)
833 87e3e801 2021-07-17 op if (ferror(session))
834 87e3e801 2021-07-17 op message("error reading %s: %s",
835 87e3e801 2021-07-17 op session_file, strerror(errno));
836 87e3e801 2021-07-17 op fclose(session);
839 87e3e801 2021-07-17 op if (curr != NULL)
840 87e3e801 2021-07-17 op switch_to_tab(curr);
846 6cc5fcfe 2021-07-08 op start_child(enum telescope_process p, const char *argv0, int fd)
848 6cc5fcfe 2021-07-08 op const char *argv[4];
849 6cc5fcfe 2021-07-08 op int argc = 0;
852 6cc5fcfe 2021-07-08 op switch (pid = fork()) {
862 6cc5fcfe 2021-07-08 op if (dup2(fd, 3) == -1)
863 6cc5fcfe 2021-07-08 op err(1, "cannot setup imsg fd");
865 6cc5fcfe 2021-07-08 op argv[argc++] = argv0;
867 6cc5fcfe 2021-07-08 op case PROC_UI:
868 6cc5fcfe 2021-07-08 op errx(1, "Can't start ui process");
869 6cc5fcfe 2021-07-08 op case PROC_FS:
870 6cc5fcfe 2021-07-08 op argv[argc++] = "-Tf";
872 6cc5fcfe 2021-07-08 op case PROC_NET:
873 6cc5fcfe 2021-07-08 op argv[argc++] = "-Tn";
877 6cc5fcfe 2021-07-08 op argv[argc++] = NULL;
878 6cc5fcfe 2021-07-08 op execvp(argv0, (char *const *)argv);
879 6cc5fcfe 2021-07-08 op err(1, "execvp(%s)", argv0);
883 bc10f6a5 2021-07-12 op ui_send_net(int type, uint32_t peerid, const void *data,
884 bc10f6a5 2021-07-12 op uint16_t datalen)
886 bc10f6a5 2021-07-12 op return imsg_compose_event(iev_net, type, peerid, 0, -1, data,
891 bc10f6a5 2021-07-12 op ui_send_fs(int type, uint32_t peerid, const void *data, uint16_t datalen)
893 bc10f6a5 2021-07-12 op return imsg_compose_event(iev_fs, type, peerid, 0, -1, data,
897 6cc5fcfe 2021-07-08 op static void __attribute__((noreturn))
900 dc761924 2021-07-15 op fprintf(stderr, "USAGE: %s [-hnv] [-c config] [url]\n",
901 dc761924 2021-07-15 op getprogname());
902 d2544989 2021-07-08 op fprintf(stderr, "version: " PACKAGE " " VERSION "\n");
907 6cd6a9e1 2021-03-20 op main(int argc, char * const *argv)
909 bc10f6a5 2021-07-12 op struct imsgev net_ibuf, fs_ibuf;
910 bc10f6a5 2021-07-12 op int pipe2net[2], pipe2fs[2];
911 d2544989 2021-07-08 op int ch, configtest = 0, fail = 0;
912 d2544989 2021-07-08 op int has_url = 0;
913 6cc5fcfe 2021-07-08 op int proc = -1;
914 d0fd368a 2021-07-15 op int sessionfd;
915 d2544989 2021-07-08 op char path[PATH_MAX];
916 6cc5fcfe 2021-07-08 op const char *url = NEW_TAB_URL;
917 6cc5fcfe 2021-07-08 op const char *argv0;
919 6cc5fcfe 2021-07-08 op argv0 = argv[0];
921 5e11c00c 2021-03-02 op signal(SIGCHLD, SIG_IGN);
922 a0e91173 2021-06-13 op signal(SIGPIPE, SIG_IGN);
924 d2544989 2021-07-08 op if (getenv("NO_COLOR") != NULL)
925 d2544989 2021-07-08 op enable_colors = 0;
927 d2544989 2021-07-08 op strlcpy(path, getenv("HOME"), sizeof(path));
928 d2544989 2021-07-08 op strlcat(path, "/.telescope/config", sizeof(path));
930 dc761924 2021-07-15 op while ((ch = getopt_long(argc, argv, opts, longopts, NULL)) != -1) {
931 d2544989 2021-07-08 op switch (ch) {
933 1853ee50 2021-07-15 op exit(ui_print_colors());
936 d2544989 2021-07-08 op strlcpy(path, optarg, sizeof(path));
939 d2544989 2021-07-08 op configtest = 1;
944 6cc5fcfe 2021-07-08 op switch (*optarg) {
946 6cc5fcfe 2021-07-08 op proc = PROC_FS;
949 6cc5fcfe 2021-07-08 op proc = PROC_NET;
952 6cc5fcfe 2021-07-08 op errx(1, "invalid process spec %c",
957 dc761924 2021-07-15 op printf("%s %s\n", PACKAGE_NAME, PACKAGE_VERSION);
965 d2544989 2021-07-08 op argc -= optind;
966 d2544989 2021-07-08 op argv += optind;
968 6cc5fcfe 2021-07-08 op if (proc != -1) {
969 6cc5fcfe 2021-07-08 op if (argc > 0)
971 6cc5fcfe 2021-07-08 op else if (proc == PROC_FS)
972 6cc5fcfe 2021-07-08 op return fs_main();
973 6cc5fcfe 2021-07-08 op else if (proc == PROC_NET)
974 6cc5fcfe 2021-07-08 op return client_main();
979 d2544989 2021-07-08 op if (argc != 0) {
981 d2544989 2021-07-08 op url = argv[0];
984 d5bdf203 2021-07-08 op /* setup keys before reading the config */
985 d5bdf203 2021-07-08 op TAILQ_INIT(&global_map.m);
986 d5bdf203 2021-07-08 op global_map.unhandled_input = global_key_unbound;
987 d5bdf203 2021-07-08 op TAILQ_INIT(&minibuffer_map.m);
989 d2544989 2021-07-08 op config_init();
990 d2544989 2021-07-08 op parseconfig(path, fail);
991 d2544989 2021-07-08 op if (configtest){
992 d2544989 2021-07-08 op puts("config OK");
997 d0fd368a 2021-07-15 op if ((sessionfd = lock_session()) == -1)
998 d0fd368a 2021-07-15 op errx(1, "can't lock session, is another instance of "
999 d0fd368a 2021-07-15 op "telescope already running?");
1001 6cc5fcfe 2021-07-08 op /* Start children. */
1002 bc10f6a5 2021-07-12 op if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe2fs) == -1)
1003 5e11c00c 2021-03-02 op err(1, "socketpair");
1004 bc10f6a5 2021-07-12 op start_child(PROC_FS, argv0, pipe2fs[1]);
1005 bc10f6a5 2021-07-12 op imsg_init(&fs_ibuf.ibuf, pipe2fs[0]);
1006 bc10f6a5 2021-07-12 op iev_fs = &fs_ibuf;
1007 bc10f6a5 2021-07-12 op iev_fs->handler = handle_dispatch_imsg;
1009 bc10f6a5 2021-07-12 op if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe2net) == -1)
1010 35e1f40a 2021-03-14 op err(1, "socketpair");
1011 bc10f6a5 2021-07-12 op start_child(PROC_NET, argv0, pipe2net[1]);
1012 bc10f6a5 2021-07-12 op imsg_init(&net_ibuf.ibuf, pipe2net[0]);
1013 bc10f6a5 2021-07-12 op iev_net = &net_ibuf;
1014 bc10f6a5 2021-07-12 op iev_net->handler = handle_dispatch_imsg;
1016 37d429b0 2021-04-01 op setproctitle("ui");
1018 6cc5fcfe 2021-07-08 op /* initialize tofu & load certificates */
1019 3768e50f 2021-04-25 op tofu_init(&certs, 5, offsetof(struct tofu_entry, domain));
1020 3a227e9a 2021-03-18 op load_certs(&certs);
1022 5e11c00c 2021-03-02 op event_init();
1024 bc10f6a5 2021-07-12 op /* Setup event handlers for pipes to fs/net */
1025 bc10f6a5 2021-07-12 op iev_fs->events = EV_READ;
1026 bc10f6a5 2021-07-12 op event_set(&iev_fs->ev, iev_fs->ibuf.fd, iev_fs->events,
1027 bc10f6a5 2021-07-12 op iev_fs->handler, iev_fs);
1028 bc10f6a5 2021-07-12 op event_add(&iev_fs->ev, NULL);
1030 bc10f6a5 2021-07-12 op iev_net->events = EV_READ;
1031 bc10f6a5 2021-07-12 op event_set(&iev_net->ev, iev_net->ibuf.fd, iev_net->events,
1032 bc10f6a5 2021-07-12 op iev_net->handler, iev_net);
1033 bc10f6a5 2021-07-12 op event_add(&iev_net->ev, NULL);
1035 d2544989 2021-07-08 op if (ui_init()) {
1036 87e3e801 2021-07-17 op load_last_session();
1037 d2544989 2021-07-08 op if (has_url || TAILQ_EMPTY(&tabshead))
1038 d2544989 2021-07-08 op new_tab(url);
1040 941b3761 2021-03-18 op sandbox_ui_process();
1041 2ddbda6b 2021-07-17 op ui_main_loop();
1045 bc10f6a5 2021-07-12 op ui_send_fs(IMSG_QUIT, 0, NULL, 0);
1046 bc10f6a5 2021-07-12 op ui_send_net(IMSG_QUIT, 0, NULL, 0);
1047 3e5fd7be 2021-07-13 op imsg_flush(&iev_fs->ibuf);
1048 a9925134 2021-07-15 op imsg_flush(&iev_net->ibuf);
1050 d0fd368a 2021-07-15 op close(sessionfd);
