1 5e11c00c 2021-03-02 op #include <sys/socket.h>
3 5e11c00c 2021-03-02 op #include <errno.h>
4 dc761924 2021-07-15 op #include <getopt.h>
5 d2544989 2021-07-08 op #include <limits.h>
6 5e11c00c 2021-03-02 op #include <signal.h>
7 5e11c00c 2021-03-02 op #include <stdio.h>
8 5e11c00c 2021-03-02 op #include <stdlib.h>
9 5e11c00c 2021-03-02 op #include <string.h>
10 5e11c00c 2021-03-02 op #include <unistd.h>
12 e659558c 2021-07-13 op #include "defaults.h"
13 395b9f4e 2021-07-12 op #include "parser.h"
14 395b9f4e 2021-07-12 op #include "telescope.h"
15 d1a0f2a3 2021-07-12 op #include "ui.h"
17 dc761924 2021-07-15 op static struct option longopts[] = {
18 1853ee50 2021-07-15 op {"colors", no_argument, NULL, 'c'},
19 dc761924 2021-07-15 op {"help", no_argument, NULL, 'h'},
20 dc761924 2021-07-15 op {"version", no_argument, NULL, 'v'},
21 dc761924 2021-07-15 op {NULL, 0, NULL, 0},
24 1853ee50 2021-07-15 op static const char *opts = "Cc:hnT:v";
26 bc10f6a5 2021-07-12 op static struct imsgev *iev_fs, *iev_net;
28 f6a429eb 2021-07-10 op struct tabshead tabshead = TAILQ_HEAD_INITIALIZER(tabshead);
29 f6a429eb 2021-07-10 op struct proxylist proxies = TAILQ_HEAD_INITIALIZER(proxies);
31 6cc5fcfe 2021-07-08 op enum telescope_process {
37 c07ac996 2021-03-12 op /* the first is also the fallback one */
38 c07ac996 2021-03-12 op static struct proto protos[] = {
39 31f1a758 2021-04-22 op { "gemini", load_gemini_url },
40 31f1a758 2021-04-22 op { "about", load_about_url },
41 4d3785b1 2021-03-09 op { NULL, NULL },
45 9a8a7402 2021-07-18 op #define CANNOT_FETCH 0
46 9a8a7402 2021-07-18 op #define TOO_MUCH_REDIRECTS 1
47 9a8a7402 2021-07-18 op #define MALFORMED_RESPONSE 2
48 9a8a7402 2021-07-18 op #define UNKNOWN_TYPE_OR_CSET 3
49 9a8a7402 2021-07-18 op #define UNKNOWN_PROTOCOL 4
51 9a8a7402 2021-07-18 op /* XXX: keep in sync with telescope.c:/^normalize_code/ */
52 9a8a7402 2021-07-18 op const char *err_pages[70] = {
53 9a8a7402 2021-07-18 op [CANNOT_FETCH] = "# Couldn't load the page\n",
54 9a8a7402 2021-07-18 op [TOO_MUCH_REDIRECTS] = "# Too much redirects\n",
55 9a8a7402 2021-07-18 op [MALFORMED_RESPONSE] = "# Got a malformed response\n",
56 9a8a7402 2021-07-18 op [UNKNOWN_TYPE_OR_CSET] = "# Unsupported type or charset\n",
57 9a8a7402 2021-07-18 op [UNKNOWN_PROTOCOL] = "# Unknown protocol\n",
59 9a8a7402 2021-07-18 op [10] = "# Input required\n",
60 9a8a7402 2021-07-18 op [11] = "# Input required\n",
61 9a8a7402 2021-07-18 op [40] = "# Temporary failure\n",
62 9a8a7402 2021-07-18 op [41] = "# Server unavailable\n",
63 9a8a7402 2021-07-18 op [42] = "# CGI error\n",
64 9a8a7402 2021-07-18 op [43] = "# Proxy error\n",
65 9a8a7402 2021-07-18 op [44] = "# Slow down\n",
66 9a8a7402 2021-07-18 op [50] = "# Permanent failure\n",
67 9a8a7402 2021-07-18 op [51] = "# Not found\n",
68 9a8a7402 2021-07-18 op [52] = "# Gone\n",
69 9a8a7402 2021-07-18 op [53] = "# Proxy request refused\n",
70 9a8a7402 2021-07-18 op [59] = "# Bad request\n",
71 9a8a7402 2021-07-18 op [60] = "# Client certificate required\n",
72 9a8a7402 2021-07-18 op [61] = "# Certificate not authorised\n",
73 9a8a7402 2021-07-18 op [62] = "# Certificate not valid\n"
76 2051e653 2021-03-13 op static void die(void) __attribute__((__noreturn__));
77 2051e653 2021-03-13 op static struct tab *tab_by_id(uint32_t);
78 2051e653 2021-03-13 op static void handle_imsg_err(struct imsg*, size_t);
79 2051e653 2021-03-13 op static void handle_imsg_check_cert(struct imsg*, size_t);
80 a2fd3805 2021-07-06 op static void handle_check_cert_user_choice(int, struct tab *);
81 a2fd3805 2021-07-06 op static void handle_maybe_save_new_cert(int, struct tab *);
82 2051e653 2021-03-13 op static void handle_imsg_got_code(struct imsg*, size_t);
83 2051e653 2021-03-13 op static void handle_imsg_got_meta(struct imsg*, size_t);
84 a2fd3805 2021-07-06 op static void handle_maybe_save_page(int, struct tab *);
85 d1353324 2021-07-13 op static void handle_save_page_path(const char *, struct tab *);
86 de2a69bb 2021-05-17 op static void handle_imsg_file_opened(struct imsg*, size_t);
87 2051e653 2021-03-13 op static void handle_imsg_buf(struct imsg*, size_t);
88 2051e653 2021-03-13 op static void handle_imsg_eof(struct imsg*, size_t);
89 740f578b 2021-03-15 op static void handle_imsg_bookmark_ok(struct imsg*, size_t);
90 3a227e9a 2021-03-18 op static void handle_imsg_save_cert_ok(struct imsg*, size_t);
91 288fd238 2021-04-25 op static void handle_imsg_update_cert_ok(struct imsg *, size_t);
92 1304bbdd 2021-03-15 op static void handle_dispatch_imsg(int, short, void*);
93 2051e653 2021-03-13 op static void load_page_from_str(struct tab*, const char*);
94 adea4eec 2021-07-16 op static int do_load_url(struct tab*, const char*);
95 2f524b17 2021-07-17 op static void parse_session_line(char *, const char **, uint32_t *);
96 87e3e801 2021-07-17 op static void load_last_session(void);
97 6cc5fcfe 2021-07-08 op static pid_t start_child(enum telescope_process, const char *, int);
98 bc10f6a5 2021-07-12 op static int ui_send_net(int, uint32_t, const void *, uint16_t);
99 bc10f6a5 2021-07-12 op static int ui_send_fs(int, uint32_t, const void *, uint16_t);
101 5e11c00c 2021-03-02 op static imsg_handlerfn *handlers[] = {
102 5e11c00c 2021-03-02 op [IMSG_ERR] = handle_imsg_err,
103 5e11c00c 2021-03-02 op [IMSG_CHECK_CERT] = handle_imsg_check_cert,
104 5e11c00c 2021-03-02 op [IMSG_GOT_CODE] = handle_imsg_got_code,
105 5e11c00c 2021-03-02 op [IMSG_GOT_META] = handle_imsg_got_meta,
106 5e11c00c 2021-03-02 op [IMSG_BUF] = handle_imsg_buf,
107 5e11c00c 2021-03-02 op [IMSG_EOF] = handle_imsg_eof,
108 740f578b 2021-03-15 op [IMSG_BOOKMARK_OK] = handle_imsg_bookmark_ok,
109 3a227e9a 2021-03-18 op [IMSG_SAVE_CERT_OK] = handle_imsg_save_cert_ok,
110 288fd238 2021-04-25 op [IMSG_UPDATE_CERT_OK] = handle_imsg_update_cert_ok,
111 de2a69bb 2021-05-17 op [IMSG_FILE_OPENED] = handle_imsg_file_opened,
114 cbcc75fb 2021-03-17 op static struct ohash certs;
116 5e11c00c 2021-03-02 op static void __attribute__((__noreturn__))
119 5e11c00c 2021-03-02 op abort(); /* TODO */
122 5e11c00c 2021-03-02 op static struct tab *
123 5e11c00c 2021-03-02 op tab_by_id(uint32_t id)
125 5e11c00c 2021-03-02 op struct tab *t;
127 5e11c00c 2021-03-02 op TAILQ_FOREACH(t, &tabshead, tabs) {
128 5e11c00c 2021-03-02 op if (t->id == id)
136 5e11c00c 2021-03-02 op handle_imsg_err(struct imsg *imsg, size_t datalen)
138 3a9b9365 2021-03-09 op struct tab *tab;
141 3a9b9365 2021-03-09 op tab = tab_by_id(imsg->hdr.peerid);
143 3a9b9365 2021-03-09 op page = imsg->data;
144 3a9b9365 2021-03-09 op page[datalen-1] = '\0';
146 3a9b9365 2021-03-09 op if (asprintf(&page, "# Error loading %s\n\n> %s\n",
147 2051e653 2021-03-13 op tab->hist_cur->h, page) == -1)
149 3a9b9365 2021-03-09 op load_page_from_str(tab, page);
154 5e11c00c 2021-03-02 op handle_imsg_check_cert(struct imsg *imsg, size_t datalen)
156 984245ce 2021-06-23 op const char *hash, *host, *port;
157 cbcc75fb 2021-03-17 op int tofu_res;
158 cbcc75fb 2021-03-17 op struct tofu_entry *e;
159 cbcc75fb 2021-03-17 op struct tab *tab;
161 cbcc75fb 2021-03-17 op hash = imsg->data;
162 cbcc75fb 2021-03-17 op if (hash[datalen-1] != '\0')
165 10346511 2021-03-17 op tab = tab_by_id(imsg->hdr.peerid);
167 984245ce 2021-06-23 op if (tab->proxy != NULL) {
168 984245ce 2021-06-23 op host = tab->proxy->host;
169 984245ce 2021-06-23 op port = tab->proxy->port;
171 984245ce 2021-06-23 op host = tab->uri.host;
172 984245ce 2021-06-23 op port = tab->uri.port;
175 984245ce 2021-06-23 op if ((e = tofu_lookup(&certs, host, port)) == NULL) {
176 cbcc75fb 2021-03-17 op /* TODO: an update in libressl/libretls changed
177 cbcc75fb 2021-03-17 op * significantly. Find a better approach at storing
178 cbcc75fb 2021-03-17 op * the certs! */
179 cbcc75fb 2021-03-17 op if (datalen > sizeof(e->hash))
182 cbcc75fb 2021-03-17 op tofu_res = 1; /* trust on first use */
183 cbcc75fb 2021-03-17 op if ((e = calloc(1, sizeof(*e))) == NULL)
185 984245ce 2021-06-23 op strlcpy(e->domain, host, sizeof(e->domain));
186 984245ce 2021-06-23 op if (*port != '\0' && strcmp(port, "1965")) {
187 eb4388ee 2021-04-25 op strlcat(e->domain, ":", sizeof(e->domain));
188 984245ce 2021-06-23 op strlcat(e->domain, port, sizeof(e->domain));
190 cbcc75fb 2021-03-17 op strlcpy(e->hash, hash, sizeof(e->hash));
191 3768e50f 2021-04-25 op tofu_add(&certs, e);
192 bc10f6a5 2021-07-12 op ui_send_fs(IMSG_SAVE_CERT, tab->id, e, sizeof(*e));
194 cbcc75fb 2021-03-17 op tofu_res = !strcmp(hash, e->hash);
196 5d1bac73 2021-03-25 op if (tofu_res) {
197 a2fd3805 2021-07-06 op if (e->verified == -1)
198 a2fd3805 2021-07-06 op tab->trust = TS_TEMP_TRUSTED;
199 a2fd3805 2021-07-06 op else if (e->verified == 1)
200 a2fd3805 2021-07-06 op tab->trust = TS_VERIFIED;
202 a2fd3805 2021-07-06 op tab->trust = TS_TRUSTED;
204 bc10f6a5 2021-07-12 op ui_send_net(IMSG_CERT_STATUS, imsg->hdr.peerid,
205 5d1bac73 2021-03-25 op &tofu_res, sizeof(tofu_res));
207 cbcc75fb 2021-03-17 op tab->trust = TS_UNTRUSTED;
208 cbcc75fb 2021-03-17 op load_page_from_str(tab, "# Certificate mismatch\n");
209 288fd238 2021-04-25 op if ((tab->cert = strdup(hash)) == NULL)
211 5d1bac73 2021-03-25 op ui_yornp("Certificate mismatch. Proceed?",
212 a2fd3805 2021-07-06 op handle_check_cert_user_choice, tab);
217 a2fd3805 2021-07-06 op handle_check_cert_user_choice(int accept, struct tab *tab)
219 bc10f6a5 2021-07-12 op ui_send_net(IMSG_CERT_STATUS, tab->id, &accept,
220 bc10f6a5 2021-07-12 op sizeof(accept));
222 a2fd3805 2021-07-06 op if (accept) {
224 a2fd3805 2021-07-06 op * trust the certificate for this session only. If
225 a2fd3805 2021-07-06 op * the page results in a redirect while we're asking
226 a2fd3805 2021-07-06 op * the user to save, we'll end up with an invalid
227 a2fd3805 2021-07-06 op * tabid (one request == one tab id) and crash. It
228 a2fd3805 2021-07-06 op * also makes sense to save it for the current session
229 a2fd3805 2021-07-06 op * if the user accepted it.
231 a2fd3805 2021-07-06 op tofu_temp_trust(&certs, tab->uri.host, tab->uri.port, tab->cert);
233 288fd238 2021-04-25 op ui_yornp("Save the new certificate?",
234 a2fd3805 2021-07-06 op handle_maybe_save_new_cert, tab);
236 288fd238 2021-04-25 op free(tab->cert);
237 288fd238 2021-04-25 op tab->cert = NULL;
242 a2fd3805 2021-07-06 op handle_maybe_save_new_cert(int accept, struct tab *tab)
244 288fd238 2021-04-25 op struct tofu_entry *e;
245 984245ce 2021-06-23 op const char *host, *port;
247 984245ce 2021-06-23 op if (tab->proxy != NULL) {
248 984245ce 2021-06-23 op host = tab->proxy->host;
249 984245ce 2021-06-23 op port = tab->proxy->port;
251 984245ce 2021-06-23 op host = tab->uri.host;
252 984245ce 2021-06-23 op port = tab->uri.port;
258 fe2262ad 2021-05-12 op if ((e = calloc(1, sizeof(*e))) == NULL)
261 984245ce 2021-06-23 op strlcpy(e->domain, host, sizeof(e->domain));
262 984245ce 2021-06-23 op if (*port != '\0' && strcmp(port, "1965")) {
263 288fd238 2021-04-25 op strlcat(e->domain, ":", sizeof(e->domain));
264 984245ce 2021-06-23 op strlcat(e->domain, port, sizeof(e->domain));
266 288fd238 2021-04-25 op strlcpy(e->hash, tab->cert, sizeof(e->hash));
267 bc10f6a5 2021-07-12 op ui_send_fs(IMSG_UPDATE_CERT, 0, e, sizeof(*e));
269 288fd238 2021-04-25 op tofu_update(&certs, e);
271 288fd238 2021-04-25 op tab->trust = TS_TRUSTED;
274 288fd238 2021-04-25 op free(tab->cert);
275 288fd238 2021-04-25 op tab->cert = NULL;
278 5cd2ebb1 2021-03-11 op static inline int
279 5cd2ebb1 2021-03-11 op normalize_code(int n)
281 5cd2ebb1 2021-03-11 op if (n < 20) {
282 5cd2ebb1 2021-03-11 op if (n == 10 || n == 11)
285 5cd2ebb1 2021-03-11 op } else if (n < 30) {
287 5cd2ebb1 2021-03-11 op } else if (n < 40) {
288 5cd2ebb1 2021-03-11 op if (n == 30 || n == 31)
291 5cd2ebb1 2021-03-11 op } else if (n < 50) {
295 5cd2ebb1 2021-03-11 op } else if (n < 60) {
296 5cd2ebb1 2021-03-11 op if (n <= 53 || n == 59)
299 5cd2ebb1 2021-03-11 op } else if (n < 70) {
304 5cd2ebb1 2021-03-11 op return MALFORMED_RESPONSE;
308 5e11c00c 2021-03-02 op handle_imsg_got_code(struct imsg *imsg, size_t datalen)
310 0972d8b2 2021-03-02 op struct tab *tab;
312 0972d8b2 2021-03-02 op tab = tab_by_id(imsg->hdr.peerid);
314 0972d8b2 2021-03-02 op if (sizeof(tab->code) != datalen)
317 5cd2ebb1 2021-03-11 op memcpy(&tab->code, imsg->data, sizeof(tab->code));
318 5cd2ebb1 2021-03-11 op tab->code = normalize_code(tab->code);
319 5cd2ebb1 2021-03-11 op if (tab->code != 30 && tab->code != 31)
320 0972d8b2 2021-03-02 op tab->redirect_count = 0;
324 5e11c00c 2021-03-02 op handle_imsg_got_meta(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->meta) <= datalen)
333 0972d8b2 2021-03-02 op memcpy(tab->meta, imsg->data, datalen);
335 5cd2ebb1 2021-03-11 op if (tab->code < 10) { /* internal errors */
336 5cd2ebb1 2021-03-11 op load_page_from_str(tab, err_pages[tab->code]);
337 5cd2ebb1 2021-03-11 op } else if (tab->code < 20) { /* 1x */
338 5cd2ebb1 2021-03-11 op load_page_from_str(tab, err_pages[tab->code]);
339 5cd2ebb1 2021-03-11 op ui_require_input(tab, tab->code == 11);
340 5cd2ebb1 2021-03-11 op } else if (tab->code == 20) {
341 c07ac996 2021-03-12 op if (setup_parser_for(tab)) {
342 bc10f6a5 2021-07-12 op ui_send_net(IMSG_PROCEED, tab->id, NULL, 0);
344 c07ac996 2021-03-12 op load_page_from_str(tab, err_pages[UNKNOWN_TYPE_OR_CSET]);
345 de2a69bb 2021-05-17 op ui_yornp("Can't display page, wanna save?",
346 a2fd3805 2021-07-06 op handle_maybe_save_page, tab);
348 5cd2ebb1 2021-03-11 op } else if (tab->code < 40) { /* 3x */
349 3a9b9365 2021-03-09 op tab->redirect_count++;
351 3a9b9365 2021-03-09 op /* TODO: make customizable? */
352 3a9b9365 2021-03-09 op if (tab->redirect_count > 5) {
353 3a9b9365 2021-03-09 op load_page_from_str(tab,
354 3a9b9365 2021-03-09 op err_pages[TOO_MUCH_REDIRECTS]);
356 2051e653 2021-03-13 op do_load_url(tab, tab->meta);
357 5cd2ebb1 2021-03-11 op } else { /* 4x, 5x & 6x */
358 5cd2ebb1 2021-03-11 op load_page_from_str(tab, err_pages[tab->code]);
363 a2fd3805 2021-07-06 op handle_maybe_save_page(int dosave, struct tab *tab)
366 d1353324 2021-07-13 op ui_read("Save to path", handle_save_page_path, tab);
368 a2fd3805 2021-07-06 op stop_tab(tab);
372 d1353324 2021-07-13 op handle_save_page_path(const char *path, struct tab *tab)
374 de2a69bb 2021-05-17 op if (path == NULL) {
375 d1353324 2021-07-13 op stop_tab(tab);
379 de2a69bb 2021-05-17 op tab->path = strdup(path);
381 d1353324 2021-07-13 op ui_send_fs(IMSG_FILE_OPEN, tab->id, path, strlen(path)+1);
385 de2a69bb 2021-05-17 op handle_imsg_file_opened(struct imsg *imsg, size_t datalen)
387 de2a69bb 2021-05-17 op struct tab *tab;
389 de2a69bb 2021-05-17 op const char *e;
392 de2a69bb 2021-05-17 op tab = tab_by_id(imsg->hdr.peerid);
394 de2a69bb 2021-05-17 op if (imsg->fd == -1) {
395 de2a69bb 2021-05-17 op stop_tab(tab);
397 de2a69bb 2021-05-17 op e = imsg->data;
398 de2a69bb 2021-05-17 op if (e[datalen-1] != '\0')
400 de2a69bb 2021-05-17 op l = asprintf(&page, "# Can't open file\n\n> %s: %s\n",
401 de2a69bb 2021-05-17 op tab->path, e);
404 de2a69bb 2021-05-17 op load_page_from_str(tab, page);
407 de2a69bb 2021-05-17 op tab->fd = imsg->fd;
408 bc10f6a5 2021-07-12 op ui_send_net(IMSG_PROCEED, tab->id, NULL, 0);
413 5e11c00c 2021-03-02 op handle_imsg_buf(struct imsg *imsg, size_t datalen)
415 0972d8b2 2021-03-02 op struct tab *tab;
417 0e1eff5b 2021-06-23 op char *page, buf[FMT_SCALED_STRSIZE] = {0};
419 0972d8b2 2021-03-02 op tab = tab_by_id(imsg->hdr.peerid);
421 de2a69bb 2021-05-17 op tab->bytes += datalen;
422 de2a69bb 2021-05-17 op if (tab->fd == -1) {
423 46f6e974 2021-05-17 op if (!tab->buffer.page.parse(&tab->buffer.page,
424 de2a69bb 2021-05-17 op imsg->data, datalen))
427 de2a69bb 2021-05-17 op write(tab->fd, imsg->data, datalen);
428 0e1eff5b 2021-06-23 op fmt_scaled(tab->bytes, buf);
429 0e1eff5b 2021-06-23 op l = asprintf(&page, "Saving to \"%s\"... (%s)\n",
434 de2a69bb 2021-05-17 op load_page_from_str(tab, page);
438 0972d8b2 2021-03-02 op ui_on_tab_refresh(tab);
442 5e11c00c 2021-03-02 op handle_imsg_eof(struct imsg *imsg, size_t datalen)
444 2ba66cea 2021-03-22 op struct tab *tab;
446 0e1eff5b 2021-06-23 op char *page, buf[FMT_SCALED_STRSIZE] = {0};
448 2ba66cea 2021-03-22 op tab = tab_by_id(imsg->hdr.peerid);
450 de2a69bb 2021-05-17 op if (tab->fd == -1) {
451 46f6e974 2021-05-17 op if (!tab->buffer.page.free(&tab->buffer.page))
454 0e1eff5b 2021-06-23 op fmt_scaled(tab->bytes, buf);
455 0e1eff5b 2021-06-23 op l = asprintf(&page, "Saved to \"%s\" (%s)\n",
460 de2a69bb 2021-05-17 op load_page_from_str(tab, page);
463 de2a69bb 2021-05-17 op close(tab->fd);
464 de2a69bb 2021-05-17 op tab->fd = -1;
465 de2a69bb 2021-05-17 op free(tab->path);
466 de2a69bb 2021-05-17 op tab->path = NULL;
469 2ba66cea 2021-03-22 op ui_on_tab_refresh(tab);
470 2ba66cea 2021-03-22 op ui_on_tab_loaded(tab);
474 740f578b 2021-03-15 op handle_imsg_bookmark_ok(struct imsg *imsg, size_t datalen)
478 740f578b 2021-03-15 op if (datalen != sizeof(res))
481 740f578b 2021-03-15 op memcpy(&res, imsg->data, sizeof(res));
482 740f578b 2021-03-15 op if (res == 0)
483 7f963c41 2021-06-20 op message("Added to bookmarks!");
485 7f963c41 2021-06-20 op message("Failed to add to bookmarks: %s",
486 740f578b 2021-03-15 op strerror(res));
490 3a227e9a 2021-03-18 op handle_imsg_save_cert_ok(struct imsg *imsg, size_t datalen)
494 3a227e9a 2021-03-18 op if (datalen != sizeof(res))
496 3a227e9a 2021-03-18 op memcpy(&res, imsg->data, datalen);
497 3a227e9a 2021-03-18 op if (res != 0)
498 7f963c41 2021-06-20 op message("Failed to save the cert for: %s",
499 3a227e9a 2021-03-18 op strerror(res));
503 288fd238 2021-04-25 op handle_imsg_update_cert_ok(struct imsg *imsg, size_t datalen)
507 288fd238 2021-04-25 op if (datalen != sizeof(res))
509 288fd238 2021-04-25 op memcpy(&res, imsg->data, datalen);
511 7f963c41 2021-06-20 op message("Failed to update the certificate");
515 1304bbdd 2021-03-15 op handle_dispatch_imsg(int fd, short ev, void *d)
517 bc10f6a5 2021-07-12 op struct imsgev *iev = d;
518 bc10f6a5 2021-07-12 op dispatch_imsg(iev, ev, handlers, sizeof(handlers));
522 0972d8b2 2021-03-02 op load_page_from_str(struct tab *tab, const char *page)
524 00ccb53d 2021-07-01 op erase_buffer(&tab->buffer);
525 46f6e974 2021-05-17 op gemtext_initparser(&tab->buffer.page);
526 46f6e974 2021-05-17 op if (!tab->buffer.page.parse(&tab->buffer.page, page, strlen(page)))
528 46f6e974 2021-05-17 op if (!tab->buffer.page.free(&tab->buffer.page))
530 0972d8b2 2021-03-02 op ui_on_tab_refresh(tab);
531 8af5e5ed 2021-03-08 op ui_on_tab_loaded(tab);
535 4d3785b1 2021-03-09 op load_about_url(struct tab *tab, const char *url)
537 10346511 2021-03-17 op tab->trust = TS_VERIFIED;
539 46f6e974 2021-05-17 op gemtext_initparser(&tab->buffer.page);
541 bc10f6a5 2021-07-12 op ui_send_fs(IMSG_GET, tab->id,
542 31f1a758 2021-04-22 op tab->hist_cur->h, strlen(tab->hist_cur->h)+1);
546 4d3785b1 2021-03-09 op load_gemini_url(struct tab *tab, const char *url)
548 984245ce 2021-06-23 op struct get_req req;
550 2eef3403 2021-04-22 op stop_tab(tab);
551 2eef3403 2021-04-22 op tab->id = tab_new_id();
553 984245ce 2021-06-23 op memset(&req, 0, sizeof(req));
554 984245ce 2021-06-23 op strlcpy(req.host, tab->uri.host, sizeof(req.host));
555 984245ce 2021-06-23 op strlcpy(req.port, tab->uri.port, sizeof(req.host));
557 984245ce 2021-06-23 op strlcpy(req.req, tab->hist_cur->h, sizeof(req.req));
558 984245ce 2021-06-23 op strlcat(req.req, "\r\n", sizeof(req.req));
560 984245ce 2021-06-23 op req.proto = PROTO_GEMINI;
562 bc10f6a5 2021-07-12 op ui_send_net(IMSG_GET_RAW, tab->id,
563 984245ce 2021-06-23 op &req, sizeof(req));
567 984245ce 2021-06-23 op load_via_proxy(struct tab *tab, const char *url, struct proxy *p)
569 984245ce 2021-06-23 op struct get_req req;
571 984245ce 2021-06-23 op stop_tab(tab);
572 984245ce 2021-06-23 op tab->id = tab_new_id();
573 984245ce 2021-06-23 op tab->proxy = p;
575 984245ce 2021-06-23 op memset(&req, 0, sizeof(req));
576 984245ce 2021-06-23 op strlcpy(req.host, p->host, sizeof(req.host));
577 984245ce 2021-06-23 op strlcpy(req.port, p->port, sizeof(req.host));
579 984245ce 2021-06-23 op strlcpy(req.req, tab->hist_cur->h, sizeof(req.req));
580 984245ce 2021-06-23 op strlcat(req.req, "\r\n", sizeof(req.req));
582 984245ce 2021-06-23 op req.proto = p->proto;
584 bc10f6a5 2021-07-12 op ui_send_net(IMSG_GET_RAW, tab->id,
585 984245ce 2021-06-23 op &req, sizeof(req));
589 adea4eec 2021-07-16 op * Effectively load the given url in the given tab. Return 1 when
590 adea4eec 2021-07-16 op * loading the page asynchronously, and thus when an erase_buffer can
591 adea4eec 2021-07-16 op * be done right after this function return, or 0 when loading the
592 adea4eec 2021-07-16 op * page synchronously. In this last case, erase_buffer *MUST* be
593 adea4eec 2021-07-16 op * called by the handling function (such as load_page_from_str).
596 2051e653 2021-03-13 op do_load_url(struct tab *tab, const char *url)
598 31f1a758 2021-04-22 op struct phos_uri uri;
599 31f1a758 2021-04-22 op struct proto *p;
600 984245ce 2021-06-23 op struct proxy *proxy;
603 7943bb81 2021-07-10 op tab->proxy = NULL;
605 de2a69bb 2021-05-17 op if (tab->fd != -1) {
606 de2a69bb 2021-05-17 op close(tab->fd);
607 de2a69bb 2021-05-17 op tab->fd = -1;
608 de2a69bb 2021-05-17 op free(tab->path);
609 de2a69bb 2021-05-17 op tab->path = NULL;
612 10346511 2021-03-17 op tab->trust = TS_UNKNOWN;
614 31f1a758 2021-04-22 op memcpy(&uri, &tab->uri, sizeof(tab->uri));
615 31f1a758 2021-04-22 op if (!phos_resolve_uri_from_str(&uri, url, &tab->uri)) {
616 31f1a758 2021-04-22 op if (asprintf(&t, "#error loading %s\n>%s\n",
617 31f1a758 2021-04-22 op url, "Can't parse the URI") == -1)
619 31f1a758 2021-04-22 op strlcpy(tab->hist_cur->h, url, sizeof(tab->hist_cur->h));
620 31f1a758 2021-04-22 op load_page_from_str(tab, t);
625 31f1a758 2021-04-22 op phos_serialize_uri(&tab->uri, tab->hist_cur->h,
626 31f1a758 2021-04-22 op sizeof(tab->hist_cur->h));
628 4d3785b1 2021-03-09 op for (p = protos; p->schema != NULL; ++p) {
629 ed383cf4 2021-04-22 op if (!strcmp(tab->uri.scheme, p->schema)) {
630 4d3785b1 2021-03-09 op p->loadfn(tab, url);
635 984245ce 2021-06-23 op TAILQ_FOREACH(proxy, &proxies, proxies) {
636 984245ce 2021-06-23 op if (!strcmp(tab->uri.scheme, proxy->match_proto)) {
637 984245ce 2021-06-23 op load_via_proxy(tab, url, proxy);
642 adea4eec 2021-07-16 op load_page_from_str(tab, err_pages[UNKNOWN_PROTOCOL]);
647 2ddbda6b 2021-07-17 op * Load url in tab. If tab is marked as lazy, only prepare the url
648 2ddbda6b 2021-07-17 op * but don't load it. If tab is lazy and a url was already prepared,
649 2ddbda6b 2021-07-17 op * do load it!
652 2051e653 2021-03-13 op load_url(struct tab *tab, const char *url)
656 2ddbda6b 2021-07-17 op lazy = tab->flags & TAB_LAZY;
658 2ddbda6b 2021-07-17 op if (lazy && tab->hist_cur != NULL) {
660 2ddbda6b 2021-07-17 op tab->flags &= ~TAB_LAZY;
663 2ddbda6b 2021-07-17 op if (!lazy || tab->hist_cur == NULL) {
664 2ddbda6b 2021-07-17 op if (tab->hist_cur != NULL)
665 2ddbda6b 2021-07-17 op hist_clear_forward(&tab->hist,
666 2ddbda6b 2021-07-17 op TAILQ_NEXT(tab->hist_cur, entries));
668 2ddbda6b 2021-07-17 op if ((tab->hist_cur = calloc(1, sizeof(*tab->hist_cur))) == NULL) {
669 2ddbda6b 2021-07-17 op event_loopbreak();
673 2ddbda6b 2021-07-17 op strlcpy(tab->buffer.page.title, url,
674 2ddbda6b 2021-07-17 op sizeof(tab->buffer.page.title));
675 2ddbda6b 2021-07-17 op hist_push(&tab->hist, tab->hist_cur);
678 2ddbda6b 2021-07-17 op strlcpy(tab->hist_cur->h, url,
679 2ddbda6b 2021-07-17 op sizeof(tab->hist_cur->h));
682 2ddbda6b 2021-07-17 op if (!lazy && do_load_url(tab, url))
683 adea4eec 2021-07-16 op erase_buffer(&tab->buffer);
687 2051e653 2021-03-13 op load_previous_page(struct tab *tab)
689 2051e653 2021-03-13 op struct hist *h;
691 2051e653 2021-03-13 op if ((h = TAILQ_PREV(tab->hist_cur, mhisthead, entries)) == NULL)
693 2051e653 2021-03-13 op tab->hist_cur = h;
694 2051e653 2021-03-13 op do_load_url(tab, h->h);
699 2051e653 2021-03-13 op load_next_page(struct tab *tab)
701 2051e653 2021-03-13 op struct hist *h;
703 2051e653 2021-03-13 op if ((h = TAILQ_NEXT(tab->hist_cur, entries)) == NULL)
705 2051e653 2021-03-13 op tab->hist_cur = h;
706 2051e653 2021-03-13 op do_load_url(tab, h->h);
711 9ad4627d 2021-03-10 op stop_tab(struct tab *tab)
713 bc10f6a5 2021-07-12 op ui_send_net(IMSG_STOP, tab->id, NULL, 0);
715 de2a69bb 2021-05-17 op if (tab->fd != -1) {
716 de2a69bb 2021-05-17 op close(tab->fd);
717 de2a69bb 2021-05-17 op tab->fd = -1;
718 de2a69bb 2021-05-17 op free(tab->path);
719 de2a69bb 2021-05-17 op tab->path = NULL;
720 de2a69bb 2021-05-17 op load_page_from_str(tab, "Stopped.\n");
725 740f578b 2021-03-15 op add_to_bookmarks(const char *str)
727 bc10f6a5 2021-07-12 op ui_send_fs(IMSG_BOOKMARK_PAGE, 0,
728 bc10f6a5 2021-07-12 op str, strlen(str)+1);
732 c7107cec 2021-04-01 op save_session(void)
734 87e3e801 2021-07-17 op struct tab *tab;
738 bc10f6a5 2021-07-12 op ui_send_fs(IMSG_SESSION_START, 0, NULL, 0);
740 c7107cec 2021-04-01 op TAILQ_FOREACH(tab, &tabshead, tabs) {
741 87e3e801 2021-07-17 op flags = tab->flags;
742 87e3e801 2021-07-17 op if (tab == current_tab)
743 87e3e801 2021-07-17 op flags |= TAB_CURRENT;
745 2f524b17 2021-07-17 op t = tab->hist_cur->h;
746 2f524b17 2021-07-17 op ui_send_fs(IMSG_SESSION_TAB, flags, t, strlen(t)+1);
748 2f524b17 2021-07-17 op t = tab->buffer.page.title;
749 2f524b17 2021-07-17 op ui_send_fs(IMSG_SESSION_TAB_TITLE, 0, t, strlen(t)+1);
752 bc10f6a5 2021-07-12 op ui_send_fs(IMSG_SESSION_END, 0, NULL, 0);
756 87e3e801 2021-07-17 op * Parse a line of the session file. The format is:
758 2f524b17 2021-07-17 op * URL [flags,...] [title]\n
761 2f524b17 2021-07-17 op parse_session_line(char *line, const char **title, uint32_t *flags)
763 2f524b17 2021-07-17 op char *s, *t, *ap;
767 87e3e801 2021-07-17 op if ((s = strchr(line, ' ')) == NULL)
772 2f524b17 2021-07-17 op if ((t = strchr(s, ' ')) != NULL) {
777 87e3e801 2021-07-17 op while ((ap = strsep(&s, ",")) != NULL) {
778 87e3e801 2021-07-17 op if (*ap == '\0')
780 87e3e801 2021-07-17 op else if (!strcmp(ap, "current"))
781 87e3e801 2021-07-17 op *flags |= TAB_CURRENT;
783 87e3e801 2021-07-17 op message("unknown tab flag: %s", ap);
788 87e3e801 2021-07-17 op load_last_session(void)
790 2f524b17 2021-07-17 op const char *title;
791 87e3e801 2021-07-17 op char *nl, *line = NULL;
792 87e3e801 2021-07-17 op uint32_t flags;
793 87e3e801 2021-07-17 op size_t linesize = 0;
794 87e3e801 2021-07-17 op ssize_t linelen;
795 87e3e801 2021-07-17 op FILE *session;
796 259cf35a 2021-07-18 op struct tab *tab, *curr = NULL;
798 87e3e801 2021-07-17 op if ((session = fopen(session_file, "r")) == NULL) {
799 87e3e801 2021-07-17 op /* first time? */
800 9a8a7402 2021-07-18 op new_tab("about:new");
801 9a8a7402 2021-07-18 op switch_to_tab(new_tab("about:help"));
805 87e3e801 2021-07-17 op while ((linelen = getline(&line, &linesize, session)) != -1) {
806 87e3e801 2021-07-17 op if ((nl = strchr(line, '\n')) != NULL)
808 2f524b17 2021-07-17 op parse_session_line(line, &title, &flags);
809 87e3e801 2021-07-17 op if ((tab = new_tab(line)) == NULL)
810 2f524b17 2021-07-17 op err(1, "new_tab");
811 2f524b17 2021-07-17 op strlcpy(tab->buffer.page.title, title,
812 2f524b17 2021-07-17 op sizeof(tab->buffer.page.title));
813 87e3e801 2021-07-17 op if (flags & TAB_CURRENT)
817 87e3e801 2021-07-17 op if (ferror(session))
818 87e3e801 2021-07-17 op message("error reading %s: %s",
819 87e3e801 2021-07-17 op session_file, strerror(errno));
820 87e3e801 2021-07-17 op fclose(session);
823 87e3e801 2021-07-17 op if (curr != NULL)
824 87e3e801 2021-07-17 op switch_to_tab(curr);
830 6cc5fcfe 2021-07-08 op start_child(enum telescope_process p, const char *argv0, int fd)
832 6cc5fcfe 2021-07-08 op const char *argv[4];
833 6cc5fcfe 2021-07-08 op int argc = 0;
836 6cc5fcfe 2021-07-08 op switch (pid = fork()) {
846 6cc5fcfe 2021-07-08 op if (dup2(fd, 3) == -1)
847 6cc5fcfe 2021-07-08 op err(1, "cannot setup imsg fd");
849 6cc5fcfe 2021-07-08 op argv[argc++] = argv0;
851 6cc5fcfe 2021-07-08 op case PROC_UI:
852 6cc5fcfe 2021-07-08 op errx(1, "Can't start ui process");
853 6cc5fcfe 2021-07-08 op case PROC_FS:
854 6cc5fcfe 2021-07-08 op argv[argc++] = "-Tf";
856 6cc5fcfe 2021-07-08 op case PROC_NET:
857 6cc5fcfe 2021-07-08 op argv[argc++] = "-Tn";
861 6cc5fcfe 2021-07-08 op argv[argc++] = NULL;
862 6cc5fcfe 2021-07-08 op execvp(argv0, (char *const *)argv);
863 6cc5fcfe 2021-07-08 op err(1, "execvp(%s)", argv0);
867 bc10f6a5 2021-07-12 op ui_send_net(int type, uint32_t peerid, const void *data,
868 bc10f6a5 2021-07-12 op uint16_t datalen)
870 bc10f6a5 2021-07-12 op return imsg_compose_event(iev_net, type, peerid, 0, -1, data,
875 bc10f6a5 2021-07-12 op ui_send_fs(int type, uint32_t peerid, const void *data, uint16_t datalen)
877 bc10f6a5 2021-07-12 op return imsg_compose_event(iev_fs, type, peerid, 0, -1, data,
881 6cc5fcfe 2021-07-08 op static void __attribute__((noreturn))
884 dc761924 2021-07-15 op fprintf(stderr, "USAGE: %s [-hnv] [-c config] [url]\n",
885 dc761924 2021-07-15 op getprogname());
886 d2544989 2021-07-08 op fprintf(stderr, "version: " PACKAGE " " VERSION "\n");
891 6cd6a9e1 2021-03-20 op main(int argc, char * const *argv)
893 bc10f6a5 2021-07-12 op struct imsgev net_ibuf, fs_ibuf;
894 bc10f6a5 2021-07-12 op int pipe2net[2], pipe2fs[2];
895 d2544989 2021-07-08 op int ch, configtest = 0, fail = 0;
896 d2544989 2021-07-08 op int has_url = 0;
897 6cc5fcfe 2021-07-08 op int proc = -1;
898 d0fd368a 2021-07-15 op int sessionfd;
899 d2544989 2021-07-08 op char path[PATH_MAX];
900 6cc5fcfe 2021-07-08 op const char *url = NEW_TAB_URL;
901 6cc5fcfe 2021-07-08 op const char *argv0;
903 6cc5fcfe 2021-07-08 op argv0 = argv[0];
905 5e11c00c 2021-03-02 op signal(SIGCHLD, SIG_IGN);
906 a0e91173 2021-06-13 op signal(SIGPIPE, SIG_IGN);
908 d2544989 2021-07-08 op if (getenv("NO_COLOR") != NULL)
909 d2544989 2021-07-08 op enable_colors = 0;
911 d2544989 2021-07-08 op strlcpy(path, getenv("HOME"), sizeof(path));
912 d2544989 2021-07-08 op strlcat(path, "/.telescope/config", sizeof(path));
914 dc761924 2021-07-15 op while ((ch = getopt_long(argc, argv, opts, longopts, NULL)) != -1) {
915 d2544989 2021-07-08 op switch (ch) {
917 1853ee50 2021-07-15 op exit(ui_print_colors());
920 d2544989 2021-07-08 op strlcpy(path, optarg, sizeof(path));
923 d2544989 2021-07-08 op configtest = 1;
928 6cc5fcfe 2021-07-08 op switch (*optarg) {
930 6cc5fcfe 2021-07-08 op proc = PROC_FS;
933 6cc5fcfe 2021-07-08 op proc = PROC_NET;
936 6cc5fcfe 2021-07-08 op errx(1, "invalid process spec %c",
941 dc761924 2021-07-15 op printf("%s %s\n", PACKAGE_NAME, PACKAGE_VERSION);
949 d2544989 2021-07-08 op argc -= optind;
950 d2544989 2021-07-08 op argv += optind;
952 6cc5fcfe 2021-07-08 op if (proc != -1) {
953 6cc5fcfe 2021-07-08 op if (argc > 0)
955 6cc5fcfe 2021-07-08 op else if (proc == PROC_FS)
956 6cc5fcfe 2021-07-08 op return fs_main();
957 6cc5fcfe 2021-07-08 op else if (proc == PROC_NET)
958 6cc5fcfe 2021-07-08 op return client_main();
963 d2544989 2021-07-08 op if (argc != 0) {
965 d2544989 2021-07-08 op url = argv[0];
968 d5bdf203 2021-07-08 op /* setup keys before reading the config */
969 d5bdf203 2021-07-08 op TAILQ_INIT(&global_map.m);
970 d5bdf203 2021-07-08 op global_map.unhandled_input = global_key_unbound;
971 d5bdf203 2021-07-08 op TAILQ_INIT(&minibuffer_map.m);
973 d2544989 2021-07-08 op config_init();
974 d2544989 2021-07-08 op parseconfig(path, fail);
975 d2544989 2021-07-08 op if (configtest){
976 d2544989 2021-07-08 op puts("config OK");
981 d0fd368a 2021-07-15 op if ((sessionfd = lock_session()) == -1)
982 d0fd368a 2021-07-15 op errx(1, "can't lock session, is another instance of "
983 d0fd368a 2021-07-15 op "telescope already running?");
985 6cc5fcfe 2021-07-08 op /* Start children. */
986 bc10f6a5 2021-07-12 op if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe2fs) == -1)
987 5e11c00c 2021-03-02 op err(1, "socketpair");
988 bc10f6a5 2021-07-12 op start_child(PROC_FS, argv0, pipe2fs[1]);
989 bc10f6a5 2021-07-12 op imsg_init(&fs_ibuf.ibuf, pipe2fs[0]);
990 bc10f6a5 2021-07-12 op iev_fs = &fs_ibuf;
991 bc10f6a5 2021-07-12 op iev_fs->handler = handle_dispatch_imsg;
993 bc10f6a5 2021-07-12 op if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe2net) == -1)
994 35e1f40a 2021-03-14 op err(1, "socketpair");
995 bc10f6a5 2021-07-12 op start_child(PROC_NET, argv0, pipe2net[1]);
996 bc10f6a5 2021-07-12 op imsg_init(&net_ibuf.ibuf, pipe2net[0]);
997 bc10f6a5 2021-07-12 op iev_net = &net_ibuf;
998 bc10f6a5 2021-07-12 op iev_net->handler = handle_dispatch_imsg;
1000 37d429b0 2021-04-01 op setproctitle("ui");
1002 6cc5fcfe 2021-07-08 op /* initialize tofu & load certificates */
1003 3768e50f 2021-04-25 op tofu_init(&certs, 5, offsetof(struct tofu_entry, domain));
1004 3a227e9a 2021-03-18 op load_certs(&certs);
1006 5e11c00c 2021-03-02 op event_init();
1008 bc10f6a5 2021-07-12 op /* Setup event handlers for pipes to fs/net */
1009 bc10f6a5 2021-07-12 op iev_fs->events = EV_READ;
1010 bc10f6a5 2021-07-12 op event_set(&iev_fs->ev, iev_fs->ibuf.fd, iev_fs->events,
1011 bc10f6a5 2021-07-12 op iev_fs->handler, iev_fs);
1012 bc10f6a5 2021-07-12 op event_add(&iev_fs->ev, NULL);
1014 bc10f6a5 2021-07-12 op iev_net->events = EV_READ;
1015 bc10f6a5 2021-07-12 op event_set(&iev_net->ev, iev_net->ibuf.fd, iev_net->events,
1016 bc10f6a5 2021-07-12 op iev_net->handler, iev_net);
1017 bc10f6a5 2021-07-12 op event_add(&iev_net->ev, NULL);
1019 d2544989 2021-07-08 op if (ui_init()) {
1020 87e3e801 2021-07-17 op load_last_session();
1021 d2544989 2021-07-08 op if (has_url || TAILQ_EMPTY(&tabshead))
1022 d2544989 2021-07-08 op new_tab(url);
1024 941b3761 2021-03-18 op sandbox_ui_process();
1025 2ddbda6b 2021-07-17 op ui_main_loop();
1029 bc10f6a5 2021-07-12 op ui_send_fs(IMSG_QUIT, 0, NULL, 0);
1030 bc10f6a5 2021-07-12 op ui_send_net(IMSG_QUIT, 0, NULL, 0);
1031 3e5fd7be 2021-07-13 op imsg_flush(&iev_fs->ibuf);
1032 a9925134 2021-07-15 op imsg_flush(&iev_net->ibuf);
1034 d0fd368a 2021-07-15 op close(sessionfd);
