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 5a824be4 2021-07-13 op #include "pages.h"
14 395b9f4e 2021-07-12 op #include "parser.h"
15 395b9f4e 2021-07-12 op #include "telescope.h"
16 d1a0f2a3 2021-07-12 op #include "ui.h"
18 dc761924 2021-07-15 op static struct option longopts[] = {
19 1853ee50 2021-07-15 op {"colors", no_argument, NULL, 'c'},
20 dc761924 2021-07-15 op {"help", no_argument, NULL, 'h'},
21 dc761924 2021-07-15 op {"version", no_argument, NULL, 'v'},
22 dc761924 2021-07-15 op {NULL, 0, NULL, 0},
25 1853ee50 2021-07-15 op static const char *opts = "Cc:hnT:v";
27 bc10f6a5 2021-07-12 op static struct imsgev *iev_fs, *iev_net;
29 f6a429eb 2021-07-10 op struct tabshead tabshead = TAILQ_HEAD_INITIALIZER(tabshead);
30 f6a429eb 2021-07-10 op struct proxylist proxies = TAILQ_HEAD_INITIALIZER(proxies);
32 6cc5fcfe 2021-07-08 op enum telescope_process {
38 c07ac996 2021-03-12 op /* the first is also the fallback one */
39 c07ac996 2021-03-12 op static struct proto protos[] = {
40 31f1a758 2021-04-22 op { "gemini", load_gemini_url },
41 31f1a758 2021-04-22 op { "about", load_about_url },
42 4d3785b1 2021-03-09 op { NULL, NULL },
46 9a8a7402 2021-07-18 op #define CANNOT_FETCH 0
47 9a8a7402 2021-07-18 op #define TOO_MUCH_REDIRECTS 1
48 9a8a7402 2021-07-18 op #define MALFORMED_RESPONSE 2
49 9a8a7402 2021-07-18 op #define UNKNOWN_TYPE_OR_CSET 3
50 9a8a7402 2021-07-18 op #define UNKNOWN_PROTOCOL 4
52 9a8a7402 2021-07-18 op /* XXX: keep in sync with telescope.c:/^normalize_code/ */
53 9a8a7402 2021-07-18 op const char *err_pages[70] = {
54 9a8a7402 2021-07-18 op [CANNOT_FETCH] = "# Couldn't load the page\n",
55 9a8a7402 2021-07-18 op [TOO_MUCH_REDIRECTS] = "# Too much redirects\n",
56 9a8a7402 2021-07-18 op [MALFORMED_RESPONSE] = "# Got a malformed response\n",
57 9a8a7402 2021-07-18 op [UNKNOWN_TYPE_OR_CSET] = "# Unsupported type or charset\n",
58 9a8a7402 2021-07-18 op [UNKNOWN_PROTOCOL] = "# Unknown protocol\n",
60 9a8a7402 2021-07-18 op [10] = "# Input required\n",
61 9a8a7402 2021-07-18 op [11] = "# Input required\n",
62 9a8a7402 2021-07-18 op [40] = "# Temporary failure\n",
63 9a8a7402 2021-07-18 op [41] = "# Server unavailable\n",
64 9a8a7402 2021-07-18 op [42] = "# CGI error\n",
65 9a8a7402 2021-07-18 op [43] = "# Proxy error\n",
66 9a8a7402 2021-07-18 op [44] = "# Slow down\n",
67 9a8a7402 2021-07-18 op [50] = "# Permanent failure\n",
68 9a8a7402 2021-07-18 op [51] = "# Not found\n",
69 9a8a7402 2021-07-18 op [52] = "# Gone\n",
70 9a8a7402 2021-07-18 op [53] = "# Proxy request refused\n",
71 9a8a7402 2021-07-18 op [59] = "# Bad request\n",
72 9a8a7402 2021-07-18 op [60] = "# Client certificate required\n",
73 9a8a7402 2021-07-18 op [61] = "# Certificate not authorised\n",
74 9a8a7402 2021-07-18 op [62] = "# Certificate not valid\n"
77 2051e653 2021-03-13 op static void die(void) __attribute__((__noreturn__));
78 2051e653 2021-03-13 op static struct tab *tab_by_id(uint32_t);
79 2051e653 2021-03-13 op static void handle_imsg_err(struct imsg*, size_t);
80 2051e653 2021-03-13 op static void handle_imsg_check_cert(struct imsg*, size_t);
81 a2fd3805 2021-07-06 op static void handle_check_cert_user_choice(int, struct tab *);
82 a2fd3805 2021-07-06 op static void handle_maybe_save_new_cert(int, struct tab *);
83 2051e653 2021-03-13 op static void handle_imsg_got_code(struct imsg*, size_t);
84 2051e653 2021-03-13 op static void handle_imsg_got_meta(struct imsg*, size_t);
85 a2fd3805 2021-07-06 op static void handle_maybe_save_page(int, struct tab *);
86 d1353324 2021-07-13 op static void handle_save_page_path(const char *, struct tab *);
87 de2a69bb 2021-05-17 op static void handle_imsg_file_opened(struct imsg*, size_t);
88 2051e653 2021-03-13 op static void handle_imsg_buf(struct imsg*, size_t);
89 2051e653 2021-03-13 op static void handle_imsg_eof(struct imsg*, size_t);
90 740f578b 2021-03-15 op static void handle_imsg_bookmark_ok(struct imsg*, size_t);
91 3a227e9a 2021-03-18 op static void handle_imsg_save_cert_ok(struct imsg*, size_t);
92 288fd238 2021-04-25 op static void handle_imsg_update_cert_ok(struct imsg *, size_t);
93 1304bbdd 2021-03-15 op static void handle_dispatch_imsg(int, short, void*);
94 2051e653 2021-03-13 op static void load_page_from_str(struct tab*, const char*);
95 adea4eec 2021-07-16 op static int do_load_url(struct tab*, const char*);
96 2f524b17 2021-07-17 op static void parse_session_line(char *, const char **, uint32_t *);
97 87e3e801 2021-07-17 op static void load_last_session(void);
98 6cc5fcfe 2021-07-08 op static pid_t start_child(enum telescope_process, const char *, int);
99 bc10f6a5 2021-07-12 op static int ui_send_net(int, uint32_t, const void *, uint16_t);
100 bc10f6a5 2021-07-12 op static int ui_send_fs(int, uint32_t, const void *, uint16_t);
102 5e11c00c 2021-03-02 op static imsg_handlerfn *handlers[] = {
103 5e11c00c 2021-03-02 op [IMSG_ERR] = handle_imsg_err,
104 5e11c00c 2021-03-02 op [IMSG_CHECK_CERT] = handle_imsg_check_cert,
105 5e11c00c 2021-03-02 op [IMSG_GOT_CODE] = handle_imsg_got_code,
106 5e11c00c 2021-03-02 op [IMSG_GOT_META] = handle_imsg_got_meta,
107 5e11c00c 2021-03-02 op [IMSG_BUF] = handle_imsg_buf,
108 5e11c00c 2021-03-02 op [IMSG_EOF] = handle_imsg_eof,
109 740f578b 2021-03-15 op [IMSG_BOOKMARK_OK] = handle_imsg_bookmark_ok,
110 3a227e9a 2021-03-18 op [IMSG_SAVE_CERT_OK] = handle_imsg_save_cert_ok,
111 288fd238 2021-04-25 op [IMSG_UPDATE_CERT_OK] = handle_imsg_update_cert_ok,
112 de2a69bb 2021-05-17 op [IMSG_FILE_OPENED] = handle_imsg_file_opened,
115 cbcc75fb 2021-03-17 op static struct ohash certs;
117 5e11c00c 2021-03-02 op static void __attribute__((__noreturn__))
120 5e11c00c 2021-03-02 op abort(); /* TODO */
123 5e11c00c 2021-03-02 op static struct tab *
124 5e11c00c 2021-03-02 op tab_by_id(uint32_t id)
126 5e11c00c 2021-03-02 op struct tab *t;
128 5e11c00c 2021-03-02 op TAILQ_FOREACH(t, &tabshead, tabs) {
129 5e11c00c 2021-03-02 op if (t->id == id)
137 5e11c00c 2021-03-02 op handle_imsg_err(struct imsg *imsg, size_t datalen)
139 3a9b9365 2021-03-09 op struct tab *tab;
142 3a9b9365 2021-03-09 op tab = tab_by_id(imsg->hdr.peerid);
144 3a9b9365 2021-03-09 op page = imsg->data;
145 3a9b9365 2021-03-09 op page[datalen-1] = '\0';
147 3a9b9365 2021-03-09 op if (asprintf(&page, "# Error loading %s\n\n> %s\n",
148 2051e653 2021-03-13 op tab->hist_cur->h, page) == -1)
150 3a9b9365 2021-03-09 op load_page_from_str(tab, page);
155 5e11c00c 2021-03-02 op handle_imsg_check_cert(struct imsg *imsg, size_t datalen)
157 984245ce 2021-06-23 op const char *hash, *host, *port;
158 cbcc75fb 2021-03-17 op int tofu_res;
159 cbcc75fb 2021-03-17 op struct tofu_entry *e;
160 cbcc75fb 2021-03-17 op struct tab *tab;
162 cbcc75fb 2021-03-17 op hash = imsg->data;
163 cbcc75fb 2021-03-17 op if (hash[datalen-1] != '\0')
166 10346511 2021-03-17 op tab = tab_by_id(imsg->hdr.peerid);
168 984245ce 2021-06-23 op if (tab->proxy != NULL) {
169 984245ce 2021-06-23 op host = tab->proxy->host;
170 984245ce 2021-06-23 op port = tab->proxy->port;
172 984245ce 2021-06-23 op host = tab->uri.host;
173 984245ce 2021-06-23 op port = tab->uri.port;
176 984245ce 2021-06-23 op if ((e = tofu_lookup(&certs, host, port)) == NULL) {
177 cbcc75fb 2021-03-17 op /* TODO: an update in libressl/libretls changed
178 cbcc75fb 2021-03-17 op * significantly. Find a better approach at storing
179 cbcc75fb 2021-03-17 op * the certs! */
180 cbcc75fb 2021-03-17 op if (datalen > sizeof(e->hash))
183 cbcc75fb 2021-03-17 op tofu_res = 1; /* trust on first use */
184 cbcc75fb 2021-03-17 op if ((e = calloc(1, sizeof(*e))) == NULL)
186 984245ce 2021-06-23 op strlcpy(e->domain, host, sizeof(e->domain));
187 984245ce 2021-06-23 op if (*port != '\0' && strcmp(port, "1965")) {
188 eb4388ee 2021-04-25 op strlcat(e->domain, ":", sizeof(e->domain));
189 984245ce 2021-06-23 op strlcat(e->domain, port, sizeof(e->domain));
191 cbcc75fb 2021-03-17 op strlcpy(e->hash, hash, sizeof(e->hash));
192 3768e50f 2021-04-25 op tofu_add(&certs, e);
193 bc10f6a5 2021-07-12 op ui_send_fs(IMSG_SAVE_CERT, tab->id, e, sizeof(*e));
195 cbcc75fb 2021-03-17 op tofu_res = !strcmp(hash, e->hash);
197 5d1bac73 2021-03-25 op if (tofu_res) {
198 a2fd3805 2021-07-06 op if (e->verified == -1)
199 a2fd3805 2021-07-06 op tab->trust = TS_TEMP_TRUSTED;
200 a2fd3805 2021-07-06 op else if (e->verified == 1)
201 a2fd3805 2021-07-06 op tab->trust = TS_VERIFIED;
203 a2fd3805 2021-07-06 op tab->trust = TS_TRUSTED;
205 bc10f6a5 2021-07-12 op ui_send_net(IMSG_CERT_STATUS, imsg->hdr.peerid,
206 5d1bac73 2021-03-25 op &tofu_res, sizeof(tofu_res));
208 cbcc75fb 2021-03-17 op tab->trust = TS_UNTRUSTED;
209 cbcc75fb 2021-03-17 op load_page_from_str(tab, "# Certificate mismatch\n");
210 288fd238 2021-04-25 op if ((tab->cert = strdup(hash)) == NULL)
212 5d1bac73 2021-03-25 op ui_yornp("Certificate mismatch. Proceed?",
213 a2fd3805 2021-07-06 op handle_check_cert_user_choice, tab);
218 a2fd3805 2021-07-06 op handle_check_cert_user_choice(int accept, struct tab *tab)
220 bc10f6a5 2021-07-12 op ui_send_net(IMSG_CERT_STATUS, tab->id, &accept,
221 bc10f6a5 2021-07-12 op sizeof(accept));
223 a2fd3805 2021-07-06 op if (accept) {
225 a2fd3805 2021-07-06 op * trust the certificate for this session only. If
226 a2fd3805 2021-07-06 op * the page results in a redirect while we're asking
227 a2fd3805 2021-07-06 op * the user to save, we'll end up with an invalid
228 a2fd3805 2021-07-06 op * tabid (one request == one tab id) and crash. It
229 a2fd3805 2021-07-06 op * also makes sense to save it for the current session
230 a2fd3805 2021-07-06 op * if the user accepted it.
232 a2fd3805 2021-07-06 op tofu_temp_trust(&certs, tab->uri.host, tab->uri.port, tab->cert);
234 288fd238 2021-04-25 op ui_yornp("Save the new certificate?",
235 a2fd3805 2021-07-06 op handle_maybe_save_new_cert, tab);
237 288fd238 2021-04-25 op free(tab->cert);
238 288fd238 2021-04-25 op tab->cert = NULL;
243 a2fd3805 2021-07-06 op handle_maybe_save_new_cert(int accept, struct tab *tab)
245 288fd238 2021-04-25 op struct tofu_entry *e;
246 984245ce 2021-06-23 op const char *host, *port;
248 984245ce 2021-06-23 op if (tab->proxy != NULL) {
249 984245ce 2021-06-23 op host = tab->proxy->host;
250 984245ce 2021-06-23 op port = tab->proxy->port;
252 984245ce 2021-06-23 op host = tab->uri.host;
253 984245ce 2021-06-23 op port = tab->uri.port;
259 fe2262ad 2021-05-12 op if ((e = calloc(1, sizeof(*e))) == NULL)
262 984245ce 2021-06-23 op strlcpy(e->domain, host, sizeof(e->domain));
263 984245ce 2021-06-23 op if (*port != '\0' && strcmp(port, "1965")) {
264 288fd238 2021-04-25 op strlcat(e->domain, ":", sizeof(e->domain));
265 984245ce 2021-06-23 op strlcat(e->domain, port, sizeof(e->domain));
267 288fd238 2021-04-25 op strlcpy(e->hash, tab->cert, sizeof(e->hash));
268 bc10f6a5 2021-07-12 op ui_send_fs(IMSG_UPDATE_CERT, 0, e, sizeof(*e));
270 288fd238 2021-04-25 op tofu_update(&certs, e);
272 288fd238 2021-04-25 op tab->trust = TS_TRUSTED;
275 288fd238 2021-04-25 op free(tab->cert);
276 288fd238 2021-04-25 op tab->cert = NULL;
279 5cd2ebb1 2021-03-11 op static inline int
280 5cd2ebb1 2021-03-11 op normalize_code(int n)
282 5cd2ebb1 2021-03-11 op if (n < 20) {
283 5cd2ebb1 2021-03-11 op if (n == 10 || n == 11)
286 5cd2ebb1 2021-03-11 op } else if (n < 30) {
288 5cd2ebb1 2021-03-11 op } else if (n < 40) {
289 5cd2ebb1 2021-03-11 op if (n == 30 || n == 31)
292 5cd2ebb1 2021-03-11 op } else if (n < 50) {
296 5cd2ebb1 2021-03-11 op } else if (n < 60) {
297 5cd2ebb1 2021-03-11 op if (n <= 53 || n == 59)
300 5cd2ebb1 2021-03-11 op } else if (n < 70) {
305 5cd2ebb1 2021-03-11 op return MALFORMED_RESPONSE;
309 5e11c00c 2021-03-02 op handle_imsg_got_code(struct imsg *imsg, size_t datalen)
311 0972d8b2 2021-03-02 op struct tab *tab;
313 0972d8b2 2021-03-02 op tab = tab_by_id(imsg->hdr.peerid);
315 0972d8b2 2021-03-02 op if (sizeof(tab->code) != datalen)
318 5cd2ebb1 2021-03-11 op memcpy(&tab->code, imsg->data, sizeof(tab->code));
319 5cd2ebb1 2021-03-11 op tab->code = normalize_code(tab->code);
320 5cd2ebb1 2021-03-11 op if (tab->code != 30 && tab->code != 31)
321 0972d8b2 2021-03-02 op tab->redirect_count = 0;
325 5e11c00c 2021-03-02 op handle_imsg_got_meta(struct imsg *imsg, size_t datalen)
327 0972d8b2 2021-03-02 op struct tab *tab;
329 0972d8b2 2021-03-02 op tab = tab_by_id(imsg->hdr.peerid);
331 0972d8b2 2021-03-02 op if (sizeof(tab->meta) <= datalen)
334 0972d8b2 2021-03-02 op memcpy(tab->meta, imsg->data, datalen);
336 5cd2ebb1 2021-03-11 op if (tab->code < 10) { /* internal errors */
337 5cd2ebb1 2021-03-11 op load_page_from_str(tab, err_pages[tab->code]);
338 5cd2ebb1 2021-03-11 op } else if (tab->code < 20) { /* 1x */
339 5cd2ebb1 2021-03-11 op load_page_from_str(tab, err_pages[tab->code]);
340 5cd2ebb1 2021-03-11 op ui_require_input(tab, tab->code == 11);
341 5cd2ebb1 2021-03-11 op } else if (tab->code == 20) {
342 c07ac996 2021-03-12 op if (setup_parser_for(tab)) {
343 bc10f6a5 2021-07-12 op ui_send_net(IMSG_PROCEED, tab->id, NULL, 0);
345 c07ac996 2021-03-12 op load_page_from_str(tab, err_pages[UNKNOWN_TYPE_OR_CSET]);
346 de2a69bb 2021-05-17 op ui_yornp("Can't display page, wanna save?",
347 a2fd3805 2021-07-06 op handle_maybe_save_page, tab);
349 5cd2ebb1 2021-03-11 op } else if (tab->code < 40) { /* 3x */
350 3a9b9365 2021-03-09 op tab->redirect_count++;
352 3a9b9365 2021-03-09 op /* TODO: make customizable? */
353 3a9b9365 2021-03-09 op if (tab->redirect_count > 5) {
354 3a9b9365 2021-03-09 op load_page_from_str(tab,
355 3a9b9365 2021-03-09 op err_pages[TOO_MUCH_REDIRECTS]);
357 2051e653 2021-03-13 op do_load_url(tab, tab->meta);
358 5cd2ebb1 2021-03-11 op } else { /* 4x, 5x & 6x */
359 5cd2ebb1 2021-03-11 op load_page_from_str(tab, err_pages[tab->code]);
364 a2fd3805 2021-07-06 op handle_maybe_save_page(int dosave, struct tab *tab)
367 d1353324 2021-07-13 op ui_read("Save to path", handle_save_page_path, tab);
369 a2fd3805 2021-07-06 op stop_tab(tab);
373 d1353324 2021-07-13 op handle_save_page_path(const char *path, struct tab *tab)
375 de2a69bb 2021-05-17 op if (path == NULL) {
376 d1353324 2021-07-13 op stop_tab(tab);
380 de2a69bb 2021-05-17 op tab->path = strdup(path);
382 d1353324 2021-07-13 op ui_send_fs(IMSG_FILE_OPEN, tab->id, path, strlen(path)+1);
386 de2a69bb 2021-05-17 op handle_imsg_file_opened(struct imsg *imsg, size_t datalen)
388 de2a69bb 2021-05-17 op struct tab *tab;
390 de2a69bb 2021-05-17 op const char *e;
393 de2a69bb 2021-05-17 op tab = tab_by_id(imsg->hdr.peerid);
395 de2a69bb 2021-05-17 op if (imsg->fd == -1) {
396 de2a69bb 2021-05-17 op stop_tab(tab);
398 de2a69bb 2021-05-17 op e = imsg->data;
399 de2a69bb 2021-05-17 op if (e[datalen-1] != '\0')
401 de2a69bb 2021-05-17 op l = asprintf(&page, "# Can't open file\n\n> %s: %s\n",
402 de2a69bb 2021-05-17 op tab->path, e);
405 de2a69bb 2021-05-17 op load_page_from_str(tab, page);
408 de2a69bb 2021-05-17 op tab->fd = imsg->fd;
409 bc10f6a5 2021-07-12 op ui_send_net(IMSG_PROCEED, tab->id, NULL, 0);
414 5e11c00c 2021-03-02 op handle_imsg_buf(struct imsg *imsg, size_t datalen)
416 0972d8b2 2021-03-02 op struct tab *tab;
418 0e1eff5b 2021-06-23 op char *page, buf[FMT_SCALED_STRSIZE] = {0};
420 0972d8b2 2021-03-02 op tab = tab_by_id(imsg->hdr.peerid);
422 de2a69bb 2021-05-17 op tab->bytes += datalen;
423 de2a69bb 2021-05-17 op if (tab->fd == -1) {
424 46f6e974 2021-05-17 op if (!tab->buffer.page.parse(&tab->buffer.page,
425 de2a69bb 2021-05-17 op imsg->data, datalen))
428 de2a69bb 2021-05-17 op write(tab->fd, imsg->data, datalen);
429 0e1eff5b 2021-06-23 op fmt_scaled(tab->bytes, buf);
430 0e1eff5b 2021-06-23 op l = asprintf(&page, "Saving to \"%s\"... (%s)\n",
435 de2a69bb 2021-05-17 op load_page_from_str(tab, page);
439 0972d8b2 2021-03-02 op ui_on_tab_refresh(tab);
443 5e11c00c 2021-03-02 op handle_imsg_eof(struct imsg *imsg, size_t datalen)
445 2ba66cea 2021-03-22 op struct tab *tab;
447 0e1eff5b 2021-06-23 op char *page, buf[FMT_SCALED_STRSIZE] = {0};
449 2ba66cea 2021-03-22 op tab = tab_by_id(imsg->hdr.peerid);
451 de2a69bb 2021-05-17 op if (tab->fd == -1) {
452 46f6e974 2021-05-17 op if (!tab->buffer.page.free(&tab->buffer.page))
455 0e1eff5b 2021-06-23 op fmt_scaled(tab->bytes, buf);
456 0e1eff5b 2021-06-23 op l = asprintf(&page, "Saved to \"%s\" (%s)\n",
461 de2a69bb 2021-05-17 op load_page_from_str(tab, page);
464 de2a69bb 2021-05-17 op close(tab->fd);
465 de2a69bb 2021-05-17 op tab->fd = -1;
466 de2a69bb 2021-05-17 op free(tab->path);
467 de2a69bb 2021-05-17 op tab->path = NULL;
470 2ba66cea 2021-03-22 op ui_on_tab_refresh(tab);
471 2ba66cea 2021-03-22 op ui_on_tab_loaded(tab);
475 740f578b 2021-03-15 op handle_imsg_bookmark_ok(struct imsg *imsg, size_t datalen)
479 740f578b 2021-03-15 op if (datalen != sizeof(res))
482 740f578b 2021-03-15 op memcpy(&res, imsg->data, sizeof(res));
483 740f578b 2021-03-15 op if (res == 0)
484 7f963c41 2021-06-20 op message("Added to bookmarks!");
486 7f963c41 2021-06-20 op message("Failed to add to bookmarks: %s",
487 740f578b 2021-03-15 op strerror(res));
491 3a227e9a 2021-03-18 op handle_imsg_save_cert_ok(struct imsg *imsg, size_t datalen)
495 3a227e9a 2021-03-18 op if (datalen != sizeof(res))
497 3a227e9a 2021-03-18 op memcpy(&res, imsg->data, datalen);
498 3a227e9a 2021-03-18 op if (res != 0)
499 7f963c41 2021-06-20 op message("Failed to save the cert for: %s",
500 3a227e9a 2021-03-18 op strerror(res));
504 288fd238 2021-04-25 op handle_imsg_update_cert_ok(struct imsg *imsg, size_t datalen)
508 288fd238 2021-04-25 op if (datalen != sizeof(res))
510 288fd238 2021-04-25 op memcpy(&res, imsg->data, datalen);
512 7f963c41 2021-06-20 op message("Failed to update the certificate");
516 1304bbdd 2021-03-15 op handle_dispatch_imsg(int fd, short ev, void *d)
518 bc10f6a5 2021-07-12 op struct imsgev *iev = d;
519 bc10f6a5 2021-07-12 op dispatch_imsg(iev, ev, handlers, sizeof(handlers));
523 0972d8b2 2021-03-02 op load_page_from_str(struct tab *tab, const char *page)
525 00ccb53d 2021-07-01 op erase_buffer(&tab->buffer);
526 46f6e974 2021-05-17 op gemtext_initparser(&tab->buffer.page);
527 46f6e974 2021-05-17 op if (!tab->buffer.page.parse(&tab->buffer.page, page, strlen(page)))
529 46f6e974 2021-05-17 op if (!tab->buffer.page.free(&tab->buffer.page))
531 0972d8b2 2021-03-02 op ui_on_tab_refresh(tab);
532 8af5e5ed 2021-03-08 op ui_on_tab_loaded(tab);
536 4d3785b1 2021-03-09 op load_about_url(struct tab *tab, const char *url)
538 10346511 2021-03-17 op tab->trust = TS_VERIFIED;
540 46f6e974 2021-05-17 op gemtext_initparser(&tab->buffer.page);
542 bc10f6a5 2021-07-12 op ui_send_fs(IMSG_GET, tab->id,
543 31f1a758 2021-04-22 op tab->hist_cur->h, strlen(tab->hist_cur->h)+1);
547 4d3785b1 2021-03-09 op load_gemini_url(struct tab *tab, const char *url)
549 984245ce 2021-06-23 op struct get_req req;
551 2eef3403 2021-04-22 op stop_tab(tab);
552 2eef3403 2021-04-22 op tab->id = tab_new_id();
554 984245ce 2021-06-23 op memset(&req, 0, sizeof(req));
555 984245ce 2021-06-23 op strlcpy(req.host, tab->uri.host, sizeof(req.host));
556 984245ce 2021-06-23 op strlcpy(req.port, tab->uri.port, sizeof(req.host));
558 984245ce 2021-06-23 op strlcpy(req.req, tab->hist_cur->h, sizeof(req.req));
559 984245ce 2021-06-23 op strlcat(req.req, "\r\n", sizeof(req.req));
561 984245ce 2021-06-23 op req.proto = PROTO_GEMINI;
563 bc10f6a5 2021-07-12 op ui_send_net(IMSG_GET_RAW, tab->id,
564 984245ce 2021-06-23 op &req, sizeof(req));
568 984245ce 2021-06-23 op load_via_proxy(struct tab *tab, const char *url, struct proxy *p)
570 984245ce 2021-06-23 op struct get_req req;
572 984245ce 2021-06-23 op stop_tab(tab);
573 984245ce 2021-06-23 op tab->id = tab_new_id();
574 984245ce 2021-06-23 op tab->proxy = p;
576 984245ce 2021-06-23 op memset(&req, 0, sizeof(req));
577 984245ce 2021-06-23 op strlcpy(req.host, p->host, sizeof(req.host));
578 984245ce 2021-06-23 op strlcpy(req.port, p->port, sizeof(req.host));
580 984245ce 2021-06-23 op strlcpy(req.req, tab->hist_cur->h, sizeof(req.req));
581 984245ce 2021-06-23 op strlcat(req.req, "\r\n", sizeof(req.req));
583 984245ce 2021-06-23 op req.proto = p->proto;
585 bc10f6a5 2021-07-12 op ui_send_net(IMSG_GET_RAW, tab->id,
586 984245ce 2021-06-23 op &req, sizeof(req));
590 adea4eec 2021-07-16 op * Effectively load the given url in the given tab. Return 1 when
591 adea4eec 2021-07-16 op * loading the page asynchronously, and thus when an erase_buffer can
592 adea4eec 2021-07-16 op * be done right after this function return, or 0 when loading the
593 adea4eec 2021-07-16 op * page synchronously. In this last case, erase_buffer *MUST* be
594 adea4eec 2021-07-16 op * called by the handling function (such as load_page_from_str).
597 2051e653 2021-03-13 op do_load_url(struct tab *tab, const char *url)
599 31f1a758 2021-04-22 op struct phos_uri uri;
600 31f1a758 2021-04-22 op struct proto *p;
601 984245ce 2021-06-23 op struct proxy *proxy;
604 7943bb81 2021-07-10 op tab->proxy = NULL;
606 de2a69bb 2021-05-17 op if (tab->fd != -1) {
607 de2a69bb 2021-05-17 op close(tab->fd);
608 de2a69bb 2021-05-17 op tab->fd = -1;
609 de2a69bb 2021-05-17 op free(tab->path);
610 de2a69bb 2021-05-17 op tab->path = NULL;
613 10346511 2021-03-17 op tab->trust = TS_UNKNOWN;
615 31f1a758 2021-04-22 op memcpy(&uri, &tab->uri, sizeof(tab->uri));
616 31f1a758 2021-04-22 op if (!phos_resolve_uri_from_str(&uri, url, &tab->uri)) {
617 31f1a758 2021-04-22 op if (asprintf(&t, "#error loading %s\n>%s\n",
618 31f1a758 2021-04-22 op url, "Can't parse the URI") == -1)
620 31f1a758 2021-04-22 op strlcpy(tab->hist_cur->h, url, sizeof(tab->hist_cur->h));
621 31f1a758 2021-04-22 op load_page_from_str(tab, t);
626 31f1a758 2021-04-22 op phos_serialize_uri(&tab->uri, tab->hist_cur->h,
627 31f1a758 2021-04-22 op sizeof(tab->hist_cur->h));
629 4d3785b1 2021-03-09 op for (p = protos; p->schema != NULL; ++p) {
630 ed383cf4 2021-04-22 op if (!strcmp(tab->uri.scheme, p->schema)) {
631 4d3785b1 2021-03-09 op p->loadfn(tab, url);
636 984245ce 2021-06-23 op TAILQ_FOREACH(proxy, &proxies, proxies) {
637 984245ce 2021-06-23 op if (!strcmp(tab->uri.scheme, proxy->match_proto)) {
638 984245ce 2021-06-23 op load_via_proxy(tab, url, proxy);
643 adea4eec 2021-07-16 op load_page_from_str(tab, err_pages[UNKNOWN_PROTOCOL]);
648 2ddbda6b 2021-07-17 op * Load url in tab. If tab is marked as lazy, only prepare the url
649 2ddbda6b 2021-07-17 op * but don't load it. If tab is lazy and a url was already prepared,
650 2ddbda6b 2021-07-17 op * do load it!
653 2051e653 2021-03-13 op load_url(struct tab *tab, const char *url)
657 2ddbda6b 2021-07-17 op lazy = tab->flags & TAB_LAZY;
659 2ddbda6b 2021-07-17 op if (lazy && tab->hist_cur != NULL) {
661 2ddbda6b 2021-07-17 op tab->flags &= ~TAB_LAZY;
664 2ddbda6b 2021-07-17 op if (!lazy || tab->hist_cur == NULL) {
665 2ddbda6b 2021-07-17 op if (tab->hist_cur != NULL)
666 2ddbda6b 2021-07-17 op hist_clear_forward(&tab->hist,
667 2ddbda6b 2021-07-17 op TAILQ_NEXT(tab->hist_cur, entries));
669 2ddbda6b 2021-07-17 op if ((tab->hist_cur = calloc(1, sizeof(*tab->hist_cur))) == NULL) {
670 2ddbda6b 2021-07-17 op event_loopbreak();
674 2ddbda6b 2021-07-17 op strlcpy(tab->buffer.page.title, url,
675 2ddbda6b 2021-07-17 op sizeof(tab->buffer.page.title));
676 2ddbda6b 2021-07-17 op hist_push(&tab->hist, tab->hist_cur);
679 2ddbda6b 2021-07-17 op strlcpy(tab->hist_cur->h, url,
680 2ddbda6b 2021-07-17 op sizeof(tab->hist_cur->h));
683 2ddbda6b 2021-07-17 op if (!lazy && do_load_url(tab, url))
684 adea4eec 2021-07-16 op erase_buffer(&tab->buffer);
688 2051e653 2021-03-13 op load_previous_page(struct tab *tab)
690 2051e653 2021-03-13 op struct hist *h;
692 2051e653 2021-03-13 op if ((h = TAILQ_PREV(tab->hist_cur, mhisthead, entries)) == NULL)
694 2051e653 2021-03-13 op tab->hist_cur = h;
695 2051e653 2021-03-13 op do_load_url(tab, h->h);
700 2051e653 2021-03-13 op load_next_page(struct tab *tab)
702 2051e653 2021-03-13 op struct hist *h;
704 2051e653 2021-03-13 op if ((h = TAILQ_NEXT(tab->hist_cur, entries)) == NULL)
706 2051e653 2021-03-13 op tab->hist_cur = h;
707 2051e653 2021-03-13 op do_load_url(tab, h->h);
712 9ad4627d 2021-03-10 op stop_tab(struct tab *tab)
714 bc10f6a5 2021-07-12 op ui_send_net(IMSG_STOP, tab->id, NULL, 0);
716 de2a69bb 2021-05-17 op if (tab->fd != -1) {
717 de2a69bb 2021-05-17 op close(tab->fd);
718 de2a69bb 2021-05-17 op tab->fd = -1;
719 de2a69bb 2021-05-17 op free(tab->path);
720 de2a69bb 2021-05-17 op tab->path = NULL;
721 de2a69bb 2021-05-17 op load_page_from_str(tab, "Stopped.\n");
726 740f578b 2021-03-15 op add_to_bookmarks(const char *str)
728 bc10f6a5 2021-07-12 op ui_send_fs(IMSG_BOOKMARK_PAGE, 0,
729 bc10f6a5 2021-07-12 op str, strlen(str)+1);
733 c7107cec 2021-04-01 op save_session(void)
735 87e3e801 2021-07-17 op struct tab *tab;
739 bc10f6a5 2021-07-12 op ui_send_fs(IMSG_SESSION_START, 0, NULL, 0);
741 c7107cec 2021-04-01 op TAILQ_FOREACH(tab, &tabshead, tabs) {
742 87e3e801 2021-07-17 op flags = tab->flags;
743 87e3e801 2021-07-17 op if (tab == current_tab)
744 87e3e801 2021-07-17 op flags |= TAB_CURRENT;
746 2f524b17 2021-07-17 op t = tab->hist_cur->h;
747 2f524b17 2021-07-17 op ui_send_fs(IMSG_SESSION_TAB, flags, t, strlen(t)+1);
749 2f524b17 2021-07-17 op t = tab->buffer.page.title;
750 2f524b17 2021-07-17 op ui_send_fs(IMSG_SESSION_TAB_TITLE, 0, t, strlen(t)+1);
753 bc10f6a5 2021-07-12 op ui_send_fs(IMSG_SESSION_END, 0, NULL, 0);
757 87e3e801 2021-07-17 op * Parse a line of the session file. The format is:
759 2f524b17 2021-07-17 op * URL [flags,...] [title]\n
762 2f524b17 2021-07-17 op parse_session_line(char *line, const char **title, uint32_t *flags)
764 2f524b17 2021-07-17 op char *s, *t, *ap;
768 87e3e801 2021-07-17 op if ((s = strchr(line, ' ')) == NULL)
773 2f524b17 2021-07-17 op if ((t = strchr(s, ' ')) != NULL) {
778 87e3e801 2021-07-17 op while ((ap = strsep(&s, ",")) != NULL) {
779 87e3e801 2021-07-17 op if (*ap == '\0')
781 87e3e801 2021-07-17 op else if (!strcmp(ap, "current"))
782 87e3e801 2021-07-17 op *flags |= TAB_CURRENT;
784 87e3e801 2021-07-17 op message("unknown tab flag: %s", ap);
789 87e3e801 2021-07-17 op load_last_session(void)
791 2f524b17 2021-07-17 op const char *title;
792 87e3e801 2021-07-17 op char *nl, *line = NULL;
793 87e3e801 2021-07-17 op uint32_t flags;
794 87e3e801 2021-07-17 op size_t linesize = 0;
795 87e3e801 2021-07-17 op ssize_t linelen;
796 87e3e801 2021-07-17 op FILE *session;
797 259cf35a 2021-07-18 op struct tab *tab, *curr = NULL;
799 87e3e801 2021-07-17 op if ((session = fopen(session_file, "r")) == NULL) {
800 87e3e801 2021-07-17 op /* first time? */
801 9a8a7402 2021-07-18 op new_tab("about:new");
802 9a8a7402 2021-07-18 op switch_to_tab(new_tab("about:help"));
806 87e3e801 2021-07-17 op while ((linelen = getline(&line, &linesize, session)) != -1) {
807 87e3e801 2021-07-17 op if ((nl = strchr(line, '\n')) != NULL)
809 2f524b17 2021-07-17 op parse_session_line(line, &title, &flags);
810 87e3e801 2021-07-17 op if ((tab = new_tab(line)) == NULL)
811 2f524b17 2021-07-17 op err(1, "new_tab");
812 2f524b17 2021-07-17 op strlcpy(tab->buffer.page.title, title,
813 2f524b17 2021-07-17 op sizeof(tab->buffer.page.title));
814 87e3e801 2021-07-17 op if (flags & TAB_CURRENT)
818 87e3e801 2021-07-17 op if (ferror(session))
819 87e3e801 2021-07-17 op message("error reading %s: %s",
820 87e3e801 2021-07-17 op session_file, strerror(errno));
821 87e3e801 2021-07-17 op fclose(session);
824 87e3e801 2021-07-17 op if (curr != NULL)
825 87e3e801 2021-07-17 op switch_to_tab(curr);
831 6cc5fcfe 2021-07-08 op start_child(enum telescope_process p, const char *argv0, int fd)
833 6cc5fcfe 2021-07-08 op const char *argv[4];
834 6cc5fcfe 2021-07-08 op int argc = 0;
837 6cc5fcfe 2021-07-08 op switch (pid = fork()) {
847 6cc5fcfe 2021-07-08 op if (dup2(fd, 3) == -1)
848 6cc5fcfe 2021-07-08 op err(1, "cannot setup imsg fd");
850 6cc5fcfe 2021-07-08 op argv[argc++] = argv0;
852 6cc5fcfe 2021-07-08 op case PROC_UI:
853 6cc5fcfe 2021-07-08 op errx(1, "Can't start ui process");
854 6cc5fcfe 2021-07-08 op case PROC_FS:
855 6cc5fcfe 2021-07-08 op argv[argc++] = "-Tf";
857 6cc5fcfe 2021-07-08 op case PROC_NET:
858 6cc5fcfe 2021-07-08 op argv[argc++] = "-Tn";
862 6cc5fcfe 2021-07-08 op argv[argc++] = NULL;
863 6cc5fcfe 2021-07-08 op execvp(argv0, (char *const *)argv);
864 6cc5fcfe 2021-07-08 op err(1, "execvp(%s)", argv0);
868 bc10f6a5 2021-07-12 op ui_send_net(int type, uint32_t peerid, const void *data,
869 bc10f6a5 2021-07-12 op uint16_t datalen)
871 bc10f6a5 2021-07-12 op return imsg_compose_event(iev_net, type, peerid, 0, -1, data,
876 bc10f6a5 2021-07-12 op ui_send_fs(int type, uint32_t peerid, const void *data, uint16_t datalen)
878 bc10f6a5 2021-07-12 op return imsg_compose_event(iev_fs, type, peerid, 0, -1, data,
882 6cc5fcfe 2021-07-08 op static void __attribute__((noreturn))
885 dc761924 2021-07-15 op fprintf(stderr, "USAGE: %s [-hnv] [-c config] [url]\n",
886 dc761924 2021-07-15 op getprogname());
887 d2544989 2021-07-08 op fprintf(stderr, "version: " PACKAGE " " VERSION "\n");
892 6cd6a9e1 2021-03-20 op main(int argc, char * const *argv)
894 bc10f6a5 2021-07-12 op struct imsgev net_ibuf, fs_ibuf;
895 bc10f6a5 2021-07-12 op int pipe2net[2], pipe2fs[2];
896 d2544989 2021-07-08 op int ch, configtest = 0, fail = 0;
897 d2544989 2021-07-08 op int has_url = 0;
898 6cc5fcfe 2021-07-08 op int proc = -1;
899 d0fd368a 2021-07-15 op int sessionfd;
900 d2544989 2021-07-08 op char path[PATH_MAX];
901 6cc5fcfe 2021-07-08 op const char *url = NEW_TAB_URL;
902 6cc5fcfe 2021-07-08 op const char *argv0;
904 6cc5fcfe 2021-07-08 op argv0 = argv[0];
906 5e11c00c 2021-03-02 op signal(SIGCHLD, SIG_IGN);
907 a0e91173 2021-06-13 op signal(SIGPIPE, SIG_IGN);
909 d2544989 2021-07-08 op if (getenv("NO_COLOR") != NULL)
910 d2544989 2021-07-08 op enable_colors = 0;
912 d2544989 2021-07-08 op strlcpy(path, getenv("HOME"), sizeof(path));
913 d2544989 2021-07-08 op strlcat(path, "/.telescope/config", sizeof(path));
915 dc761924 2021-07-15 op while ((ch = getopt_long(argc, argv, opts, longopts, NULL)) != -1) {
916 d2544989 2021-07-08 op switch (ch) {
918 1853ee50 2021-07-15 op exit(ui_print_colors());
921 d2544989 2021-07-08 op strlcpy(path, optarg, sizeof(path));
924 d2544989 2021-07-08 op configtest = 1;
929 6cc5fcfe 2021-07-08 op switch (*optarg) {
931 6cc5fcfe 2021-07-08 op proc = PROC_FS;
934 6cc5fcfe 2021-07-08 op proc = PROC_NET;
937 6cc5fcfe 2021-07-08 op errx(1, "invalid process spec %c",
942 dc761924 2021-07-15 op printf("%s %s\n", PACKAGE_NAME, PACKAGE_VERSION);
950 d2544989 2021-07-08 op argc -= optind;
951 d2544989 2021-07-08 op argv += optind;
953 6cc5fcfe 2021-07-08 op if (proc != -1) {
954 6cc5fcfe 2021-07-08 op if (argc > 0)
956 6cc5fcfe 2021-07-08 op else if (proc == PROC_FS)
957 6cc5fcfe 2021-07-08 op return fs_main();
958 6cc5fcfe 2021-07-08 op else if (proc == PROC_NET)
959 6cc5fcfe 2021-07-08 op return client_main();
964 d2544989 2021-07-08 op if (argc != 0) {
966 d2544989 2021-07-08 op url = argv[0];
969 d5bdf203 2021-07-08 op /* setup keys before reading the config */
970 d5bdf203 2021-07-08 op TAILQ_INIT(&global_map.m);
971 d5bdf203 2021-07-08 op global_map.unhandled_input = global_key_unbound;
972 d5bdf203 2021-07-08 op TAILQ_INIT(&minibuffer_map.m);
974 d2544989 2021-07-08 op config_init();
975 d2544989 2021-07-08 op parseconfig(path, fail);
976 d2544989 2021-07-08 op if (configtest){
977 d2544989 2021-07-08 op puts("config OK");
982 d0fd368a 2021-07-15 op if ((sessionfd = lock_session()) == -1)
983 d0fd368a 2021-07-15 op errx(1, "can't lock session, is another instance of "
984 d0fd368a 2021-07-15 op "telescope already running?");
986 6cc5fcfe 2021-07-08 op /* Start children. */
987 bc10f6a5 2021-07-12 op if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe2fs) == -1)
988 5e11c00c 2021-03-02 op err(1, "socketpair");
989 bc10f6a5 2021-07-12 op start_child(PROC_FS, argv0, pipe2fs[1]);
990 bc10f6a5 2021-07-12 op imsg_init(&fs_ibuf.ibuf, pipe2fs[0]);
991 bc10f6a5 2021-07-12 op iev_fs = &fs_ibuf;
992 bc10f6a5 2021-07-12 op iev_fs->handler = handle_dispatch_imsg;
994 bc10f6a5 2021-07-12 op if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe2net) == -1)
995 35e1f40a 2021-03-14 op err(1, "socketpair");
996 bc10f6a5 2021-07-12 op start_child(PROC_NET, argv0, pipe2net[1]);
997 bc10f6a5 2021-07-12 op imsg_init(&net_ibuf.ibuf, pipe2net[0]);
998 bc10f6a5 2021-07-12 op iev_net = &net_ibuf;
999 bc10f6a5 2021-07-12 op iev_net->handler = handle_dispatch_imsg;
1001 37d429b0 2021-04-01 op setproctitle("ui");
1003 6cc5fcfe 2021-07-08 op /* initialize tofu & load certificates */
1004 3768e50f 2021-04-25 op tofu_init(&certs, 5, offsetof(struct tofu_entry, domain));
1005 3a227e9a 2021-03-18 op load_certs(&certs);
1007 5e11c00c 2021-03-02 op event_init();
1009 bc10f6a5 2021-07-12 op /* Setup event handlers for pipes to fs/net */
1010 bc10f6a5 2021-07-12 op iev_fs->events = EV_READ;
1011 bc10f6a5 2021-07-12 op event_set(&iev_fs->ev, iev_fs->ibuf.fd, iev_fs->events,
1012 bc10f6a5 2021-07-12 op iev_fs->handler, iev_fs);
1013 bc10f6a5 2021-07-12 op event_add(&iev_fs->ev, NULL);
1015 bc10f6a5 2021-07-12 op iev_net->events = EV_READ;
1016 bc10f6a5 2021-07-12 op event_set(&iev_net->ev, iev_net->ibuf.fd, iev_net->events,
1017 bc10f6a5 2021-07-12 op iev_net->handler, iev_net);
1018 bc10f6a5 2021-07-12 op event_add(&iev_net->ev, NULL);
1020 d2544989 2021-07-08 op if (ui_init()) {
1021 87e3e801 2021-07-17 op load_last_session();
1022 d2544989 2021-07-08 op if (has_url || TAILQ_EMPTY(&tabshead))
1023 d2544989 2021-07-08 op new_tab(url);
1025 941b3761 2021-03-18 op sandbox_ui_process();
1026 2ddbda6b 2021-07-17 op ui_main_loop();
1030 bc10f6a5 2021-07-12 op ui_send_fs(IMSG_QUIT, 0, NULL, 0);
1031 bc10f6a5 2021-07-12 op ui_send_net(IMSG_QUIT, 0, NULL, 0);
1032 3e5fd7be 2021-07-13 op imsg_flush(&iev_fs->ibuf);
1033 a9925134 2021-07-15 op imsg_flush(&iev_net->ibuf);
1035 d0fd368a 2021-07-15 op close(sessionfd);
