1 /*
2  * Copyright (c) 2022 Omar Polo <op@omarpolo.com>
3  *
4  * Permission to use, copy, modify, and distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 #include <err.h>
18 #include <errno.h>
19 #include <stdio.h>
20 #include <string.h>
21 
22 #include "iri.h"
23 
24 static int
25 resolve(const char *base, const char *ref, const char *expected)
26 {
27 	static struct iri	i;
28 	char			buf[512];
29 
30 	if (iri_parse(base, ref, &i) == -1) {
31 		fprintf(stderr, "FAIL resolve(\"%s\", \"%s\") %s\n", base, ref,
32 		    strerror(errno));
33 		return (1);
34 	}
35 
36 	if (iri_unparse(&i, buf, sizeof(buf)) == -1) {
37 		fprintf(stderr, "FAIL resolve(\"%s\", \"%s\") %s\n", base, ref,
38 		    strerror(errno));
39 		return (1);
40 	}
41 
42 	if (strcmp(buf, expected) != 0) {
43 		fprintf(stderr, "FAIL resolve(\"%s\", \"%s\")\n", base, ref);
44 		fprintf(stderr, "got:\t%s\n", buf);
45 		fprintf(stderr, "want:\t%s\n", expected);
46 		return (1);
47 	}
48 
49 	fprintf(stderr, "OK resolve(\"%s\", \"%s\") -> %s\n", base, ref,
50 	    expected);
51 	return (0);
52 }
53 
54 int
55 main(void)
56 {
57 	const char	*base = "http://a/b/c/d;p?q";
58 	int		 ret = 0;
59 
60 	ret |= resolve(base, "g:h", "g:h");
61 	ret |= resolve(base, "g", "http://a/b/c/g");
62 	ret |= resolve(base, "./g", "http://a/b/c/g");
63 	ret |= resolve(base, "g/", "http://a/b/c/g/");
64 	ret |= resolve(base, "/g", "http://a/g");
65 
66 	/*
67 	 * the RFC says "http://g" but we always normalize an
68 	 * empty path to "/" if there is an authority.
69 	 */
70 	ret |= resolve(base, "//g", "http://g/");
71 
72 	ret |= resolve(base, "?y", "http://a/b/c/d;p?y");
73 	ret |= resolve(base, "g?y", "http://a/b/c/g?y");
74 	ret |= resolve(base, "#s", "http://a/b/c/d;p?q#s");
75 	ret |= resolve(base, "g#s", "http://a/b/c/g#s");
76 	ret |= resolve(base, "g?y#s", "http://a/b/c/g?y#s");
77 	ret |= resolve(base, ";x", "http://a/b/c/;x");
78 	ret |= resolve(base, "g;x", "http://a/b/c/g;x");
79 	ret |= resolve(base, "g;x?y#s", "http://a/b/c/g;x?y#s");
80 	ret |= resolve(base, "", "http://a/b/c/d;p?q");
81 	ret |= resolve(base, ".", "http://a/b/c/");
82 	ret |= resolve(base, "./", "http://a/b/c/");
83 	ret |= resolve(base, "..", "http://a/b/");
84 	ret |= resolve(base, "../", "http://a/b/");
85 	ret |= resolve(base, "../g", "http://a/b/g");
86 	ret |= resolve(base, "../..", "http://a/");
87 	ret |= resolve(base, "../../", "http://a/");
88 	ret |= resolve(base, "../../g", "http://a/g");
89 
90 	ret |= resolve(base, "../../../g", "http://a/g");
91 	ret |= resolve(base, "../../../../g", "http://a/g");
92 	ret |= resolve(base, "/./g", "http://a/g");
93 	ret |= resolve(base, "/../g", "http://a/g");
94 	ret |= resolve(base, "g.", "http://a/b/c/g.");
95 	ret |= resolve(base, ".g", "http://a/b/c/.g");
96 	ret |= resolve(base, "g..", "http://a/b/c/g..");
97 	ret |= resolve(base, "..g", "http://a/b/c/..g");
98 
99 	ret |= resolve(base, "./../g", "http://a/b/g");
100 	ret |= resolve(base, "./g/.", "http://a/b/c/g/");
101 	ret |= resolve(base, "g/./h", "http://a/b/c/g/h");
102 	ret |= resolve(base, "g/../h", "http://a/b/c/h");
103 	ret |= resolve(base, "g;x=1/./y", "http://a/b/c/g;x=1/y");
104 	ret |= resolve(base, "g;x=1/../y", "http://a/b/c/y");
105 
106 	ret |= resolve(base, "g?y/./x", "http://a/b/c/g?y/./x");
107 	ret |= resolve(base, "g?y/../x", "http://a/b/c/g?y/../x");
108 	ret |= resolve(base, "g#s/./x", "http://a/b/c/g#s/./x");
109 	ret |= resolve(base, "g#s/../x", "http://a/b/c/g#s/../x");
110 
111 	ret |= resolve(base, "http:g", "http:g");
112 
113 	return (ret);
114 }