Mercurial > dillo_port1.3
annotate dpi/dpiutil.c @ 2048:5060d415a85a
clickable menu items (even those introducing submenus) MUST have callbacks
I clicked on the "Panel size" item itself instead of any of the
options in its submenu, and: Segfault!
| author | corvid <corvid@lavabit.com> |
|---|---|
| date | Thu, 26 May 2011 02:51:18 +0000 |
| parents | cea7268ebb05 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * File: dpiutil.c | |
| 3 * | |
| 35 | 4 * Copyright 2004-2007 Jorge Arellano Cid <jcid@dillo.org> |
| 0 | 5 * |
| 6 * This program is free software; you can redistribute it and/or modify | |
| 7 * it under the terms of the GNU General Public License as published by | |
| 8 * the Free Software Foundation; either version 3 of the License, or | |
| 9 * (at your option) any later version. | |
| 10 * | |
| 11 */ | |
| 12 | |
| 13 #include <unistd.h> | |
| 14 #include <stdio.h> | |
| 15 #include <stdarg.h> | |
| 16 #include <string.h> | |
| 17 #include <ctype.h> | |
| 18 #include <errno.h> | |
| 19 #include <sys/socket.h> | |
| 20 | |
| 21 #include "dpiutil.h" | |
| 22 | |
| 23 /* | |
| 24 * Debugging macros | |
| 25 */ | |
| 26 #define _MSG(...) | |
| 27 #define MSG(...) printf("[dpiutil.c]: " __VA_ARGS__) | |
| 28 | |
| 29 | |
| 30 /* Escaping/De-escaping ---------------------------------------------------*/ | |
| 31 | |
| 32 /* | |
| 33 * Escape URI characters in 'esc_set' as %XX sequences. | |
| 34 * Return value: New escaped string. | |
| 35 */ | |
| 306 | 36 char *Escape_uri_str(const char *str, const char *p_esc_set) |
| 0 | 37 { |
| 306 | 38 static const char *esc_set, *hex = "0123456789ABCDEF"; |
| 39 char *p; | |
| 0 | 40 Dstr *dstr; |
| 41 int i; | |
| 42 | |
| 43 esc_set = (p_esc_set) ? p_esc_set : "%#:' "; | |
| 44 dstr = dStr_sized_new(64); | |
| 45 for (i = 0; str[i]; ++i) { | |
| 46 if (str[i] <= 0x1F || str[i] == 0x7F || strchr(esc_set, str[i])) { | |
| 47 dStr_append_c(dstr, '%'); | |
| 48 dStr_append_c(dstr, hex[(str[i] >> 4) & 15]); | |
| 49 dStr_append_c(dstr, hex[str[i] & 15]); | |
| 50 } else { | |
| 51 dStr_append_c(dstr, str[i]); | |
| 52 } | |
| 53 } | |
| 54 p = dstr->str; | |
| 55 dStr_free(dstr, FALSE); | |
| 56 | |
| 57 return p; | |
| 58 } | |
| 59 | |
|
1305
29b4740d571e
Fixed URL unescaping in the datauri DPI
Jorge Arellano Cid <jcid@dillo.org>
parents:
306
diff
changeset
|
60 /* |
|
29b4740d571e
Fixed URL unescaping in the datauri DPI
Jorge Arellano Cid <jcid@dillo.org>
parents:
306
diff
changeset
|
61 * Unescape %XX sequences in a string. |
|
29b4740d571e
Fixed URL unescaping in the datauri DPI
Jorge Arellano Cid <jcid@dillo.org>
parents:
306
diff
changeset
|
62 * Return value: a new unescaped string |
|
29b4740d571e
Fixed URL unescaping in the datauri DPI
Jorge Arellano Cid <jcid@dillo.org>
parents:
306
diff
changeset
|
63 */ |
|
29b4740d571e
Fixed URL unescaping in the datauri DPI
Jorge Arellano Cid <jcid@dillo.org>
parents:
306
diff
changeset
|
64 char *Unescape_uri_str(const char *s) |
|
29b4740d571e
Fixed URL unescaping in the datauri DPI
Jorge Arellano Cid <jcid@dillo.org>
parents:
306
diff
changeset
|
65 { |
|
29b4740d571e
Fixed URL unescaping in the datauri DPI
Jorge Arellano Cid <jcid@dillo.org>
parents:
306
diff
changeset
|
66 char *p, *buf = dStrdup(s); |
|
29b4740d571e
Fixed URL unescaping in the datauri DPI
Jorge Arellano Cid <jcid@dillo.org>
parents:
306
diff
changeset
|
67 |
|
29b4740d571e
Fixed URL unescaping in the datauri DPI
Jorge Arellano Cid <jcid@dillo.org>
parents:
306
diff
changeset
|
68 if (strchr(s, '%')) { |
|
29b4740d571e
Fixed URL unescaping in the datauri DPI
Jorge Arellano Cid <jcid@dillo.org>
parents:
306
diff
changeset
|
69 for (p = buf; (*p = *s); ++s, ++p) { |
|
29b4740d571e
Fixed URL unescaping in the datauri DPI
Jorge Arellano Cid <jcid@dillo.org>
parents:
306
diff
changeset
|
70 if (*p == '%' && isxdigit(s[1]) && isxdigit(s[2])) { |
|
29b4740d571e
Fixed URL unescaping in the datauri DPI
Jorge Arellano Cid <jcid@dillo.org>
parents:
306
diff
changeset
|
71 *p = (isdigit(s[1]) ? (s[1] - '0') : toupper(s[1]) - 'A' + 10)*16; |
|
29b4740d571e
Fixed URL unescaping in the datauri DPI
Jorge Arellano Cid <jcid@dillo.org>
parents:
306
diff
changeset
|
72 *p += isdigit(s[2]) ? (s[2] - '0') : toupper(s[2]) - 'A' + 10; |
|
29b4740d571e
Fixed URL unescaping in the datauri DPI
Jorge Arellano Cid <jcid@dillo.org>
parents:
306
diff
changeset
|
73 s += 2; |
|
29b4740d571e
Fixed URL unescaping in the datauri DPI
Jorge Arellano Cid <jcid@dillo.org>
parents:
306
diff
changeset
|
74 } |
|
29b4740d571e
Fixed URL unescaping in the datauri DPI
Jorge Arellano Cid <jcid@dillo.org>
parents:
306
diff
changeset
|
75 } |
|
29b4740d571e
Fixed URL unescaping in the datauri DPI
Jorge Arellano Cid <jcid@dillo.org>
parents:
306
diff
changeset
|
76 } |
|
29b4740d571e
Fixed URL unescaping in the datauri DPI
Jorge Arellano Cid <jcid@dillo.org>
parents:
306
diff
changeset
|
77 |
|
29b4740d571e
Fixed URL unescaping in the datauri DPI
Jorge Arellano Cid <jcid@dillo.org>
parents:
306
diff
changeset
|
78 return buf; |
|
29b4740d571e
Fixed URL unescaping in the datauri DPI
Jorge Arellano Cid <jcid@dillo.org>
parents:
306
diff
changeset
|
79 } |
|
29b4740d571e
Fixed URL unescaping in the datauri DPI
Jorge Arellano Cid <jcid@dillo.org>
parents:
306
diff
changeset
|
80 |
|
29b4740d571e
Fixed URL unescaping in the datauri DPI
Jorge Arellano Cid <jcid@dillo.org>
parents:
306
diff
changeset
|
81 |
| 0 | 82 static const char *unsafe_chars = "&<>\"'"; |
| 83 static const char *unsafe_rep[] = | |
| 84 { "&", "<", ">", """, "'" }; | |
| 85 static const int unsafe_rep_len[] = { 5, 4, 4, 6, 5 }; | |
| 86 | |
| 87 /* | |
| 88 * Escape unsafe characters as html entities. | |
| 89 * Return value: New escaped string. | |
| 90 */ | |
| 91 char *Escape_html_str(const char *str) | |
| 92 { | |
| 93 int i; | |
| 94 char *p; | |
| 95 Dstr *dstr = dStr_sized_new(64); | |
| 96 | |
| 97 for (i = 0; str[i]; ++i) { | |
| 98 if ((p = strchr(unsafe_chars, str[i]))) | |
| 99 dStr_append(dstr, unsafe_rep[p - unsafe_chars]); | |
| 100 else | |
| 101 dStr_append_c(dstr, str[i]); | |
| 102 } | |
| 103 p = dstr->str; | |
| 104 dStr_free(dstr, FALSE); | |
| 105 | |
| 106 return p; | |
| 107 } | |
| 108 | |
| 109 /* | |
| 110 * Unescape a few HTML entities (inverse of Escape_html_str) | |
| 111 * Return value: New unescaped string. | |
| 112 */ | |
| 113 char *Unescape_html_str(const char *str) | |
| 114 { | |
| 115 int i, j, k; | |
| 116 char *u_str = dStrdup(str); | |
| 117 | |
| 118 if (!strchr(str, '&')) | |
| 119 return u_str; | |
| 120 | |
| 121 for (i = 0, j = 0; str[i]; ++i) { | |
| 122 if (str[i] == '&') { | |
| 123 for (k = 0; k < 5; ++k) { | |
| 124 if (!dStrncasecmp(str + i, unsafe_rep[k], unsafe_rep_len[k])) { | |
| 125 i += unsafe_rep_len[k] - 1; | |
| 126 break; | |
| 127 } | |
| 128 } | |
| 129 u_str[j++] = (k < 5) ? unsafe_chars[k] : str[i]; | |
| 130 } else { | |
| 131 u_str[j++] = str[i]; | |
| 132 } | |
| 133 } | |
| 134 u_str[j] = 0; | |
| 135 | |
| 136 return u_str; | |
| 137 } | |
| 138 | |
| 139 /* | |
| 140 * Filter '\n', '\r', "%0D" and "%0A" from the authority part of an FTP url. | |
| 141 * This helps to avoid a SMTP relaying hack. This filtering could be done | |
| 142 * only when port == 25, but if the mail server is listening on another | |
| 143 * port it wouldn't work. | |
| 144 * Note: AFAIS this should be done by wget. | |
| 145 */ | |
| 146 char *Filter_smtp_hack(char *url) | |
| 147 { | |
| 148 int i; | |
| 149 char c; | |
| 150 | |
| 151 if (strlen(url) > 6) { /* ftp:// */ | |
| 152 for (i = 6; (c = url[i]) && c != '/'; ++i) { | |
| 153 if (c == '\n' || c == '\r') { | |
| 154 memmove(url + i, url + i + 1, strlen(url + i)); | |
| 155 --i; | |
| 156 } else if (c == '%' && url[i+1] == '0' && | |
| 157 (tolower(url[i+2]) == 'a' || tolower(url[i+2]) == 'd')) { | |
| 158 memmove(url + i, url + i + 3, strlen(url + i + 2)); | |
| 159 --i; | |
| 160 } | |
| 161 } | |
| 162 } | |
| 163 return url; | |
| 164 } | |
| 165 |