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3719602c PC |
1 | /* Copyright (C) 2010-2020 The RetroArch team |
2 | * | |
3 | * --------------------------------------------------------------------------------------- | |
4 | * The following license statement only applies to this file (net_http_parse.c). | |
5 | * --------------------------------------------------------------------------------------- | |
6 | * | |
7 | * Permission is hereby granted, free of charge, | |
8 | * to any person obtaining a copy of this software and associated documentation files (the "Software"), | |
9 | * to deal in the Software without restriction, including without limitation the rights to | |
10 | * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, | |
11 | * and to permit persons to whom the Software is furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, | |
16 | * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | |
18 | * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | |
19 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
21 | */ | |
22 | ||
23 | #include <stdio.h> | |
24 | #include <compat/strcasestr.h> | |
25 | ||
26 | /** | |
27 | * string_parse_html_anchor: | |
28 | * @line : Buffer where the <a> tag is stored | |
29 | * @link : Buffer to store the link URL in | |
30 | * @name : Buffer to store the link URL in | |
31 | * @link_size : Size of the link buffer including the NUL-terminator | |
32 | * @name_size : Size of the name buffer including the NUL-terminator | |
33 | * | |
34 | * Parses an HTML anchor link stored in @line in the form of: <a href="/path/to/url">Title</a> | |
35 | * The buffer pointed to by @link is filled with the URL path the link points to, | |
36 | * and @name is filled with the title portion of the link. | |
37 | * | |
38 | * @return 0 if URL was parsed completely, otherwise 1. | |
39 | **/ | |
40 | int string_parse_html_anchor(const char *line, char *link, char *name, | |
41 | size_t link_size, size_t name_size) | |
42 | { | |
43 | if (!line || !link || !name) | |
44 | return 1; | |
45 | ||
46 | memset(link, 0, link_size); | |
47 | memset(name, 0, name_size); | |
48 | ||
49 | line = strcasestr(line, "<a href=\""); | |
50 | ||
51 | if (!line) | |
52 | return 1; | |
53 | ||
54 | line += 9; | |
55 | ||
56 | if (line && *line) | |
57 | { | |
58 | if (!*link) | |
59 | { | |
60 | const char *end = strstr(line, "\""); | |
61 | ||
62 | if (!end) | |
63 | return 1; | |
64 | ||
65 | memcpy(link, line, end - line); | |
66 | ||
67 | *(link + (end - line)) = '\0'; | |
68 | line += end - line; | |
69 | } | |
70 | ||
71 | if (!*name) | |
72 | { | |
73 | const char *start = strstr(line, "\">"); | |
74 | const char *end = start ? strstr(start, "</a>") : NULL; | |
75 | ||
76 | if (!start || !end) | |
77 | return 1; | |
78 | ||
79 | memcpy(name, start + 2, end - start - 2); | |
80 | ||
81 | *(name + (end - start - 2)) = '\0'; | |
82 | } | |
83 | } | |
84 | ||
85 | return 0; | |
86 | } |