1 6ab857d5 2024-01-23 op /*
  2 b66e7d4d 2024-02-06 op  * Copyright (c) 2021, 2024 Omar Polo <op@omarpolo.com>
  3 6ab857d5 2024-01-23 op  *
  4 6ab857d5 2024-01-23 op  * Permission to use, copy, modify, and distribute this software for any
  5 6ab857d5 2024-01-23 op  * purpose with or without fee is hereby granted, provided that the above
  6 6ab857d5 2024-01-23 op  * copyright notice and this permission notice appear in all copies.
  7 6ab857d5 2024-01-23 op  *
  8 6ab857d5 2024-01-23 op  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  9 6ab857d5 2024-01-23 op  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 10 6ab857d5 2024-01-23 op  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 11 6ab857d5 2024-01-23 op  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 12 6ab857d5 2024-01-23 op  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 13 6ab857d5 2024-01-23 op  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 14 6ab857d5 2024-01-23 op  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 15 6ab857d5 2024-01-23 op  */
 16 6ab857d5 2024-01-23 op 
 17 6ab857d5 2024-01-23 op #ifndef TELESCOPE_H
 18 6ab857d5 2024-01-23 op #define TELESCOPE_H
 19 6ab857d5 2024-01-23 op 
 20 6ab857d5 2024-01-23 op #include <limits.h>
 21 6ab857d5 2024-01-23 op #include <stdio.h>		/* XXX: for parsers.h */
 22 6ab857d5 2024-01-23 op 
 23 6ab857d5 2024-01-23 op #include "iri.h"
 24 6ab857d5 2024-01-23 op 
 25 6ab857d5 2024-01-23 op #define MIN(a, b) ((a) < (b) ? (a) : (b))
 26 6ab857d5 2024-01-23 op #define MAX(a, b) ((a) > (b) ? (a) : (b))
 27 6ab857d5 2024-01-23 op 
 28 6ab857d5 2024-01-23 op #define GEMINI_URL_LEN 1024
 29 6ab857d5 2024-01-23 op #define TITLE_MAX 128+1		/* account for NUL too */
 30 6ab857d5 2024-01-23 op 
 31 6ab857d5 2024-01-23 op #define SIDE_WINDOW_LEFT	0x1
 32 6ab857d5 2024-01-23 op #define SIDE_WINDOW_BOTTOM	0x2
 33 6ab857d5 2024-01-23 op 
 34 6ab857d5 2024-01-23 op enum line_type {
 35 6ab857d5 2024-01-23 op 	/* text/gemini */
 36 6ab857d5 2024-01-23 op 	LINE_TEXT,
 37 6ab857d5 2024-01-23 op 	LINE_LINK,
 38 6ab857d5 2024-01-23 op 	LINE_TITLE_1,
 39 6ab857d5 2024-01-23 op 	LINE_TITLE_2,
 40 6ab857d5 2024-01-23 op 	LINE_TITLE_3,
 41 6ab857d5 2024-01-23 op 	LINE_ITEM,
 42 6ab857d5 2024-01-23 op 	LINE_QUOTE,
 43 6ab857d5 2024-01-23 op 	LINE_PRE_START,
 44 6ab857d5 2024-01-23 op 	LINE_PRE_CONTENT,
 45 6ab857d5 2024-01-23 op 	LINE_PRE_END,
 46 6ab857d5 2024-01-23 op 
 47 6ab857d5 2024-01-23 op 	/* text/x-patch */
 48 6ab857d5 2024-01-23 op 	LINE_PATCH,
 49 6ab857d5 2024-01-23 op 	LINE_PATCH_HDR,
 50 6ab857d5 2024-01-23 op 	LINE_PATCH_HUNK_HDR,
 51 6ab857d5 2024-01-23 op 	LINE_PATCH_ADD,
 52 6ab857d5 2024-01-23 op 	LINE_PATCH_DEL,
 53 6ab857d5 2024-01-23 op 
 54 6ab857d5 2024-01-23 op 	/* minibuffer */
 55 6ab857d5 2024-01-23 op 	LINE_COMPL,
 56 6ab857d5 2024-01-23 op 	LINE_COMPL_CURRENT,
 57 6ab857d5 2024-01-23 op 
 58 6ab857d5 2024-01-23 op 	/* help */
 59 6ab857d5 2024-01-23 op 	LINE_HELP,
 60 6ab857d5 2024-01-23 op 
 61 6ab857d5 2024-01-23 op 	/* download */
 62 6ab857d5 2024-01-23 op 	LINE_DOWNLOAD,
 63 6ab857d5 2024-01-23 op 	LINE_DOWNLOAD_DONE,
 64 6ab857d5 2024-01-23 op 	LINE_DOWNLOAD_INFO,
 65 6ab857d5 2024-01-23 op 
 66 6ab857d5 2024-01-23 op 	/* misc ui */
 67 6ab857d5 2024-01-23 op 	LINE_FRINGE,
 68 6ab857d5 2024-01-23 op };
 69 6ab857d5 2024-01-23 op 
 70 6ab857d5 2024-01-23 op struct line {
 71 6ab857d5 2024-01-23 op 	enum line_type		 type;
 72 6ab857d5 2024-01-23 op 	char			*line;
 73 6ab857d5 2024-01-23 op 	char			*alt;
 74 6ab857d5 2024-01-23 op 	void			*data;
 75 6ab857d5 2024-01-23 op 
 76 6ab857d5 2024-01-23 op #define L_HIDDEN	0x1
 77 6ab857d5 2024-01-23 op 	int			 flags;
 78 6ab857d5 2024-01-23 op 	TAILQ_ENTRY(line)	 lines;
 79 6ab857d5 2024-01-23 op };
 80 6ab857d5 2024-01-23 op 
 81 6ab857d5 2024-01-23 op struct vline {
 82 6ab857d5 2024-01-23 op 	struct line		*parent;
 83 6ab857d5 2024-01-23 op 	size_t			 from;
 84 6ab857d5 2024-01-23 op 	size_t			 len;
 85 6ab857d5 2024-01-23 op 	size_t			 cplen;
 86 6ab857d5 2024-01-23 op 
 87 6ab857d5 2024-01-23 op #define L_CONTINUATION	0x2
 88 6ab857d5 2024-01-23 op 	int			 flags;
 89 6ab857d5 2024-01-23 op 	TAILQ_ENTRY(vline)	 vlines;
 90 6ab857d5 2024-01-23 op };
 91 6ab857d5 2024-01-23 op 
 92 6ab857d5 2024-01-23 op struct parser;
 93 6ab857d5 2024-01-23 op 
 94 6ab857d5 2024-01-23 op typedef int	(*printfn)(void *, const char *, ...);
 95 6ab857d5 2024-01-23 op 
 96 6ab857d5 2024-01-23 op typedef void	(*parserinit)(struct parser *);
 97 6ab857d5 2024-01-23 op 
 98 6ab857d5 2024-01-23 op typedef int	(*parsechunkfn)(struct parser *, const char *, size_t);
 99 6ab857d5 2024-01-23 op typedef int	(*parserfreefn)(struct parser *);
100 6ab857d5 2024-01-23 op typedef int	(*parserserial)(struct parser *, FILE *);
101 6ab857d5 2024-01-23 op 
102 6ab857d5 2024-01-23 op struct parser {
103 6ab857d5 2024-01-23 op 	const char	*name;
104 6ab857d5 2024-01-23 op 	char		 title[128+1];
105 6ab857d5 2024-01-23 op 	char		*buf;
106 6ab857d5 2024-01-23 op 	size_t		 len;
107 6ab857d5 2024-01-23 op 	size_t		 cap;
108 6ab857d5 2024-01-23 op 
109 6ab857d5 2024-01-23 op #define PARSER_IN_BODY	1
110 6ab857d5 2024-01-23 op #define PARSER_IN_PRE	2
111 6ab857d5 2024-01-23 op #define PARSER_IN_PATCH_HDR 4
112 6ab857d5 2024-01-23 op 	int		 flags;
113 6ab857d5 2024-01-23 op 	parserinit	 init;
114 6ab857d5 2024-01-23 op 	parsechunkfn	 parse;
115 6ab857d5 2024-01-23 op 	parserfreefn	 free;
116 6ab857d5 2024-01-23 op 	parserserial	 serialize;
117 6ab857d5 2024-01-23 op 
118 6ab857d5 2024-01-23 op 	TAILQ_HEAD(, line)	 head;
119 6ab857d5 2024-01-23 op };
120 6ab857d5 2024-01-23 op 
121 6ab857d5 2024-01-23 op /*
122 6ab857d5 2024-01-23 op  * differnt types of trust for a certificate.  Following
123 6ab857d5 2024-01-23 op  * gemini://thfr.info/gemini/modified-trust-verify.gmi
124 6ab857d5 2024-01-23 op  */
125 6ab857d5 2024-01-23 op enum trust_state {
126 6ab857d5 2024-01-23 op 	TS_UNKNOWN,
127 6ab857d5 2024-01-23 op 	TS_UNTRUSTED,
128 6ab857d5 2024-01-23 op 	TS_TEMP_TRUSTED,
129 6ab857d5 2024-01-23 op 	TS_TRUSTED,
130 6ab857d5 2024-01-23 op 	TS_VERIFIED,
131 6ab857d5 2024-01-23 op };
132 6ab857d5 2024-01-23 op 
133 6ab857d5 2024-01-23 op struct buffer {
134 6ab857d5 2024-01-23 op 	struct parser		 page;
135 6ab857d5 2024-01-23 op 
136 6ab857d5 2024-01-23 op 	size_t			 last_line_off;
137 6ab857d5 2024-01-23 op 	int			 force_redraw;
138 6ab857d5 2024-01-23 op 
139 6ab857d5 2024-01-23 op 	int			 curs_x;
140 6ab857d5 2024-01-23 op 	int			 curs_y;
141 6ab857d5 2024-01-23 op 	size_t			 line_off;
142 6ab857d5 2024-01-23 op 	size_t			 line_max;
143 6ab857d5 2024-01-23 op 	struct vline		*top_line;
144 6ab857d5 2024-01-23 op 	struct vline		*current_line;
145 6ab857d5 2024-01-23 op 	size_t			 cpoff;
146 6ab857d5 2024-01-23 op 	TAILQ_HEAD(vhead, vline) head;
147 6ab857d5 2024-01-23 op };
148 6ab857d5 2024-01-23 op 
149 6ab857d5 2024-01-23 op #define TAB_CURRENT	0x1	/* only for save_session */
150 6ab857d5 2024-01-23 op #define TAB_KILLED	0x2	/* only for save_session */
151 6ab857d5 2024-01-23 op #define TAB_URGENT	0x4
152 6ab857d5 2024-01-23 op #define TAB_LAZY	0x8	/* to lazy load tabs */
153 6ab857d5 2024-01-23 op 
154 6ab857d5 2024-01-23 op #define NEW_TAB_URL	"about:new"
155 6ab857d5 2024-01-23 op 
156 6ab857d5 2024-01-23 op struct hist;
157 6ab857d5 2024-01-23 op 
158 6ab857d5 2024-01-23 op TAILQ_HEAD(tabshead, tab);
159 6ab857d5 2024-01-23 op extern struct tabshead tabshead;
160 6ab857d5 2024-01-23 op extern struct tabshead ktabshead;
161 6ab857d5 2024-01-23 op struct tab {
162 6ab857d5 2024-01-23 op 	TAILQ_ENTRY(tab)	 tabs;
163 6ab857d5 2024-01-23 op 	uint32_t		 id;
164 6ab857d5 2024-01-23 op 	uint32_t		 flags;
165 6ab857d5 2024-01-23 op 
166 6ab857d5 2024-01-23 op 	char			*cert;
167 6ab857d5 2024-01-23 op 	enum trust_state	 trust;
168 d35e18b3 2024-02-04 op 	const char		*client_cert;
169 71bc1636 2024-02-06 op 	int			 client_cert_temp;
170 6ab857d5 2024-01-23 op 	struct proxy		*proxy;
171 6ab857d5 2024-01-23 op 	struct iri		 iri;
172 6ab857d5 2024-01-23 op 	struct hist		*hist;
173 6ab857d5 2024-01-23 op 	char			*last_input_url;
174 6ab857d5 2024-01-23 op 
175 6ab857d5 2024-01-23 op 	int			 code;
176 6ab857d5 2024-01-23 op 	char			 meta[GEMINI_URL_LEN];
177 6ab857d5 2024-01-23 op 	int			 redirect_count;
178 6ab857d5 2024-01-23 op 
179 6ab857d5 2024-01-23 op 	struct buffer		 buffer;
180 6ab857d5 2024-01-23 op 
181 6ab857d5 2024-01-23 op 	short			 loading_anim;
182 6ab857d5 2024-01-23 op 	short			 loading_anim_step;
183 98d3e6c1 2024-02-18 op 	unsigned long		 loading_timer;
184 6ab857d5 2024-01-23 op };
185 6ab857d5 2024-01-23 op 
186 6ab857d5 2024-01-23 op extern TAILQ_HEAD(proxylist, proxy) proxies;
187 6ab857d5 2024-01-23 op struct proxy {
188 6ab857d5 2024-01-23 op 	char	*match_proto;
189 6ab857d5 2024-01-23 op 
190 6ab857d5 2024-01-23 op 	char	*host;
191 6ab857d5 2024-01-23 op 	char	*port;
192 6ab857d5 2024-01-23 op 	int	 proto;
193 6ab857d5 2024-01-23 op 
194 6ab857d5 2024-01-23 op 	TAILQ_ENTRY(proxy) proxies;
195 6ab857d5 2024-01-23 op };
196 6ab857d5 2024-01-23 op 
197 6ab857d5 2024-01-23 op enum {
198 6ab857d5 2024-01-23 op 	PROTO_FINGER,
199 6ab857d5 2024-01-23 op 	PROTO_GEMINI,
200 6ab857d5 2024-01-23 op 	PROTO_GOPHER,
201 6ab857d5 2024-01-23 op 	/* ... */
202 6ab857d5 2024-01-23 op };
203 6ab857d5 2024-01-23 op 
204 6ab857d5 2024-01-23 op struct get_req {
205 6ab857d5 2024-01-23 op 	int		proto;
206 6ab857d5 2024-01-23 op 	char		host[254];
207 6ab857d5 2024-01-23 op 	char		port[16];
208 6ab857d5 2024-01-23 op 	char		req[1027];
209 6ab857d5 2024-01-23 op };
210 6ab857d5 2024-01-23 op 
211 6ab857d5 2024-01-23 op /* downloads.c */
212 6ab857d5 2024-01-23 op extern STAILQ_HEAD(downloads, download) downloads;
213 6ab857d5 2024-01-23 op struct download {
214 6ab857d5 2024-01-23 op 	uint32_t		 id;
215 6ab857d5 2024-01-23 op 	int			 fd;
216 6ab857d5 2024-01-23 op 	size_t			 bytes;
217 6ab857d5 2024-01-23 op 	char			*path;
218 6ab857d5 2024-01-23 op 	STAILQ_ENTRY(download)	 entries;
219 6ab857d5 2024-01-23 op };
220 6ab857d5 2024-01-23 op 
221 6ab857d5 2024-01-23 op void		 recompute_downloads(void);
222 6ab857d5 2024-01-23 op struct download	*enqueue_download(uint32_t, const char *);
223 6ab857d5 2024-01-23 op struct download	*download_by_id(uint32_t);
224 6ab857d5 2024-01-23 op 
225 6ab857d5 2024-01-23 op /* help.c */
226 6ab857d5 2024-01-23 op void		 recompute_help(void);
227 6ab857d5 2024-01-23 op 
228 6ab857d5 2024-01-23 op /* mime.c */
229 6ab857d5 2024-01-23 op int		 setup_parser_for(struct tab*);
230 6ab857d5 2024-01-23 op 
231 6ab857d5 2024-01-23 op /* net.c */
232 6ab857d5 2024-01-23 op int		 net_main(void);
233 6ab857d5 2024-01-23 op 
234 6ab857d5 2024-01-23 op /* parse.y */
235 6ab857d5 2024-01-23 op void		 parseconfig(const char *, int);
236 6ab857d5 2024-01-23 op 
237 6ab857d5 2024-01-23 op /* sandbox.c */
238 6ab857d5 2024-01-23 op void		 sandbox_net_process(void);
239 6ab857d5 2024-01-23 op void		 sandbox_ui_process(void);
240 6ab857d5 2024-01-23 op 
241 6ab857d5 2024-01-23 op /* telescope.c */
242 6ab857d5 2024-01-23 op extern int operating;
243 6ab857d5 2024-01-23 op extern int safe_mode;
244 6ab857d5 2024-01-23 op 
245 6ab857d5 2024-01-23 op #define LU_MODE_NONE	0x0
246 6ab857d5 2024-01-23 op #define LU_MODE_NOHIST	0x1
247 6ab857d5 2024-01-23 op #define LU_MODE_NOCACHE	0x2
248 6ab857d5 2024-01-23 op 
249 6ab857d5 2024-01-23 op void		 gopher_send_search_req(struct tab *, const char *);
250 6ab857d5 2024-01-23 op void		 load_page_from_str(struct tab *, const char *);
251 6ab857d5 2024-01-23 op void		 load_url(struct tab *, const char *, const char *, int);
252 6ab857d5 2024-01-23 op void		 load_url_in_tab(struct tab *, const char *, const char *, int);
253 6ab857d5 2024-01-23 op int		 load_previous_page(struct tab*);
254 6ab857d5 2024-01-23 op int		 load_next_page(struct tab*);
255 6ab857d5 2024-01-23 op void		 write_buffer(const char *, struct tab *);
256 6ab857d5 2024-01-23 op void		 humanify_url(const char *, const char *, char *, size_t);
257 6ab857d5 2024-01-23 op int		 bookmark_page(const char *);
258 d35e18b3 2024-02-04 op int		 ui_send_net(int, uint32_t, int, const void *, uint16_t);
259 6ab857d5 2024-01-23 op 
260 6ab857d5 2024-01-23 op /* wrap.c */
261 6ab857d5 2024-01-23 op void		 erase_buffer(struct buffer *);
262 6ab857d5 2024-01-23 op void		 empty_linelist(struct buffer*);
263 6ab857d5 2024-01-23 op void		 empty_vlist(struct buffer*);
264 6ab857d5 2024-01-23 op int		 wrap_text(struct buffer*, const char*, struct line*, size_t, int);
265 6ab857d5 2024-01-23 op int		 wrap_page(struct buffer *, int width);
266 6ab857d5 2024-01-23 op 
267 6ab857d5 2024-01-23 op #endif /* TELESCOPE_H */