1 497977d5 2021-01-23 op /*
  2 497977d5 2021-01-23 op  * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
  3 497977d5 2021-01-23 op  *
  4 497977d5 2021-01-23 op  * Permission to use, copy, modify, and distribute this software for any
  5 497977d5 2021-01-23 op  * purpose with or without fee is hereby granted, provided that the above
  6 497977d5 2021-01-23 op  * copyright notice and this permission notice appear in all copies.
  7 497977d5 2021-01-23 op  *
  8 497977d5 2021-01-23 op  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  9 497977d5 2021-01-23 op  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 10 497977d5 2021-01-23 op  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 11 497977d5 2021-01-23 op  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 12 497977d5 2021-01-23 op  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 13 497977d5 2021-01-23 op  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 14 497977d5 2021-01-23 op  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 15 497977d5 2021-01-23 op  */
 16 497977d5 2021-01-23 op 
 17 497977d5 2021-01-23 op #include <string.h>
 18 497977d5 2021-01-23 op 
 19 497977d5 2021-01-23 op #include "gmid.h"
 20 497977d5 2021-01-23 op 
 21 497977d5 2021-01-23 op int
 22 497977d5 2021-01-23 op main(int argc, char **argv)
 23 497977d5 2021-01-23 op {
 24 497977d5 2021-01-23 op 	struct iri iri;
 25 497977d5 2021-01-23 op 	struct tls_config *conf;
 26 497977d5 2021-01-23 op 	struct tls *ctx;
 27 9adde3d8 2021-01-23 op 	char iribuf[GEMINI_URL_LEN], buf[GEMINI_URL_LEN];
 28 497977d5 2021-01-23 op 	const char *parse_err = "unknown error", *port = "1965";
 29 497977d5 2021-01-23 op 	char *t;
 30 497977d5 2021-01-23 op 	int ch, flag2, flag3, bflag, cflag, hflag, Nflag, Vflag;
 31 497977d5 2021-01-23 op 	ssize_t len;
 32 497977d5 2021-01-23 op 
 33 497977d5 2021-01-23 op 	flag2 = flag3 = bflag = cflag = hflag = Nflag = Vflag = 0;
 34 497977d5 2021-01-23 op 	while ((ch = getopt(argc, argv, "23cbhNV")) != -1) {
 35 497977d5 2021-01-23 op 		switch (ch) {
 36 497977d5 2021-01-23 op 		case '2':
 37 497977d5 2021-01-23 op 			flag2 = 1;
 38 497977d5 2021-01-23 op 			break;
 39 497977d5 2021-01-23 op 		case '3':
 40 497977d5 2021-01-23 op 			flag3 = 1;
 41 497977d5 2021-01-23 op 			break;
 42 497977d5 2021-01-23 op 		case 'b':
 43 497977d5 2021-01-23 op 			bflag = 1;
 44 497977d5 2021-01-23 op 			break;
 45 497977d5 2021-01-23 op 		case 'c':
 46 497977d5 2021-01-23 op 			cflag = 1;
 47 497977d5 2021-01-23 op 			break;
 48 497977d5 2021-01-23 op 		case 'h':
 49 497977d5 2021-01-23 op 			hflag = 1;
 50 497977d5 2021-01-23 op 			break;
 51 497977d5 2021-01-23 op 		case 'N':
 52 497977d5 2021-01-23 op 			Nflag = 1;
 53 497977d5 2021-01-23 op 			break;
 54 497977d5 2021-01-23 op 		case 'V':
 55 497977d5 2021-01-23 op 			Vflag = 1;
 56 497977d5 2021-01-23 op 			break;
 57 497977d5 2021-01-23 op 		default:
 58 497977d5 2021-01-23 op 			fprintf(stderr, "USAGE: %s [-23cbhNV]", *argv);
 59 497977d5 2021-01-23 op 			return 1;
 60 497977d5 2021-01-23 op 		}
 61 497977d5 2021-01-23 op 	}
 62 497977d5 2021-01-23 op 	argc -= optind;
 63 497977d5 2021-01-23 op 	argv += optind;
 64 497977d5 2021-01-23 op 
 65 497977d5 2021-01-23 op 	if ((bflag + cflag + hflag + Vflag) > 1)
 66 497977d5 2021-01-23 op 		errx(1, "only one of bchr flags can be used.");
 67 497977d5 2021-01-23 op 
 68 497977d5 2021-01-23 op 	if (flag2 + flag3 > 1)
 69 497977d5 2021-01-23 op 		errx(1, "only -2 or -3 can be specified at the same time.");
 70 497977d5 2021-01-23 op 
 71 497977d5 2021-01-23 op 	if (argc != 1)
 72 497977d5 2021-01-23 op 		errx(1, "missing IRI");
 73 497977d5 2021-01-23 op 
 74 497977d5 2021-01-23 op 	if (strlcpy(iribuf, argv[0], sizeof(iribuf)) >= sizeof(iribuf))
 75 497977d5 2021-01-23 op 		errx(1, "request too long: %s", argv[0]);
 76 9adde3d8 2021-01-23 op 	if (strlcpy(buf, argv[0], sizeof(buf)) >= sizeof(iribuf))
 77 497977d5 2021-01-23 op 		errx(1, "request too long: %s", argv[0]);
 78 9adde3d8 2021-01-23 op 	if (strlcat(buf, "\r\n", sizeof(buf)) >= sizeof(buf))
 79 497977d5 2021-01-23 op 		errx(1, "request too long: %s", argv[0]);
 80 497977d5 2021-01-23 op 
 81 497977d5 2021-01-23 op 	if (!parse_iri(iribuf, &iri, &parse_err))
 82 497977d5 2021-01-23 op 		errx(1, "invalid IRI: %s", parse_err);
 83 497977d5 2021-01-23 op 
 84 497977d5 2021-01-23 op 	if (Vflag)
 85 497977d5 2021-01-23 op 		errx(0, "IRI: OK");
 86 497977d5 2021-01-23 op 
 87 497977d5 2021-01-23 op 	if ((conf = tls_config_new()) == NULL)
 88 497977d5 2021-01-23 op 		errx(1, "tls_config_new");
 89 497977d5 2021-01-23 op 
 90 497977d5 2021-01-23 op 	tls_config_insecure_noverifycert(conf);
 91 497977d5 2021-01-23 op 	if (Nflag)
 92 497977d5 2021-01-23 op 		tls_config_insecure_noverifyname(conf);
 93 497977d5 2021-01-23 op 
 94 497977d5 2021-01-23 op 	if (flag2 && tls_config_set_protocols(conf, TLS_PROTOCOL_TLSv1_2) == -1)
 95 497977d5 2021-01-23 op 		errx(1, "cannot set TLSv1.2");
 96 497977d5 2021-01-23 op 	if (flag3 && tls_config_set_protocols(conf, TLS_PROTOCOL_TLSv1_3) == -1)
 97 497977d5 2021-01-23 op 		errx(1, "cannot set TLSv1.3");
 98 497977d5 2021-01-23 op 
 99 497977d5 2021-01-23 op 	if ((ctx = tls_client()) == NULL)
100 497977d5 2021-01-23 op 		errx(1, "tls_client creation failed");
101 497977d5 2021-01-23 op 
102 497977d5 2021-01-23 op 	if (tls_configure(ctx, conf) == -1)
103 497977d5 2021-01-23 op 		errx(1, "tls_configure: %s", tls_error(ctx));
104 497977d5 2021-01-23 op 
105 d760973a 2021-01-23 op 	if (*iri.port != '\0')
106 d760973a 2021-01-23 op 		port = iri.port;
107 d760973a 2021-01-23 op 	if (tls_connect(ctx, iri.host, port) == -1)
108 497977d5 2021-01-23 op 		errx(1, "tls_connect: %s", tls_error(ctx));
109 497977d5 2021-01-23 op 
110 9adde3d8 2021-01-23 op 	tls_write(ctx, buf, strlen(buf));
111 9adde3d8 2021-01-23 op 	/* if (tls_write(ctx, buf, strlen(buf)) != -1) */
112 497977d5 2021-01-23 op 	/*	errx(1, "tls_write: %s", tls_error(ctx)); */
113 497977d5 2021-01-23 op 
114 497977d5 2021-01-23 op 	for (;;) {
115 f62aab51 2021-01-23 op 		switch (len = tls_read(ctx, buf, sizeof(buf))) {
116 f62aab51 2021-01-23 op 		case 0:
117 f62aab51 2021-01-23 op 		case -1:
118 f62aab51 2021-01-23 op 			goto end;
119 f62aab51 2021-01-23 op 		case TLS_WANT_POLLIN:
120 f62aab51 2021-01-23 op 		case TLS_WANT_POLLOUT:
121 f62aab51 2021-01-23 op 			continue;
122 f62aab51 2021-01-23 op 		}
123 497977d5 2021-01-23 op 
124 497977d5 2021-01-23 op 		if (bflag) {
125 497977d5 2021-01-23 op 			bflag = 0;
126 497977d5 2021-01-23 op 			if ((t = strchr(buf, '\r')) != NULL)
127 497977d5 2021-01-23 op 				t += 2;
128 497977d5 2021-01-23 op 			else if ((t = strchr(buf, '\n')) != NULL)
129 497977d5 2021-01-23 op 				t += 1;
130 497977d5 2021-01-23 op 			else
131 497977d5 2021-01-23 op 				continue;
132 497977d5 2021-01-23 op 			len -= t - buf;
133 497977d5 2021-01-23 op 			write(1, t, len);
134 497977d5 2021-01-23 op 			continue;
135 497977d5 2021-01-23 op 		}
136 497977d5 2021-01-23 op 
137 497977d5 2021-01-23 op 		if (cflag) {
138 497977d5 2021-01-23 op 			write(1, buf, 2);
139 497977d5 2021-01-23 op 			write(1, "\n", 1);
140 497977d5 2021-01-23 op 			break;
141 497977d5 2021-01-23 op 		}
142 497977d5 2021-01-23 op 
143 497977d5 2021-01-23 op 		if (hflag) {
144 497977d5 2021-01-23 op 			t = strchr(buf, '\r');
145 497977d5 2021-01-23 op 			if (t == NULL)
146 497977d5 2021-01-23 op 				t = strchr(buf, '\n');
147 497977d5 2021-01-23 op 			if (t == NULL)
148 497977d5 2021-01-23 op 				t = &buf[len];
149 497977d5 2021-01-23 op                         write(1, buf, t - buf);
150 497977d5 2021-01-23 op 			write(1, "\n", 1);
151 497977d5 2021-01-23 op 			break;
152 497977d5 2021-01-23 op 		}
153 497977d5 2021-01-23 op 
154 497977d5 2021-01-23 op 		write(1, buf, len);
155 497977d5 2021-01-23 op 	}
156 f62aab51 2021-01-23 op end:
157 497977d5 2021-01-23 op 
158 497977d5 2021-01-23 op 	tls_close(ctx);
159 497977d5 2021-01-23 op 	tls_free(ctx);
160 497977d5 2021-01-23 op 
161 497977d5 2021-01-23 op 	return 0;
162 497977d5 2021-01-23 op }