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diff --git a/html.c b/html.c index 0962e71..98ffaf9 100644 --- a/ html.c+++ b/ html.c |
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@@ -1,187 +1,251 @@ |
1 | /* html.c: helper functions for html output |
1 | /* html.c: helper functions for html output |
2 | * |
2 | * |
3 | * Copyright (C) 2006 Lars Hjemli |
3 | * Copyright (C) 2006 Lars Hjemli |
4 | * |
4 | * |
5 | * Licensed under GNU General Public License v2 |
5 | * Licensed under GNU General Public License v2 |
6 | * (see COPYING for full license text) |
6 | * (see COPYING for full license text) |
7 | */ |
7 | */ |
8 | |
8 | |
9 | #include <unistd.h> |
9 | #include <unistd.h> |
10 | #include <stdio.h> |
10 | #include <stdio.h> |
11 | #include <stdlib.h> |
11 | #include <stdlib.h> |
12 | #include <stdarg.h> |
12 | #include <stdarg.h> |
13 | #include <string.h> |
13 | #include <string.h> |
14 | |
14 | |
15 | int htmlfd = STDOUT_FILENO; |
15 | int htmlfd = STDOUT_FILENO; |
16 | |
16 | |
17 | char *fmt(const char *format, ...) |
17 | char *fmt(const char *format, ...) |
18 | { |
18 | { |
19 | static char buf[8][1024]; |
19 | static char buf[8][1024]; |
20 | static int bufidx; |
20 | static int bufidx; |
21 | int len; |
21 | int len; |
22 | va_list args; |
22 | va_list args; |
23 | |
23 | |
24 | bufidx++; |
24 | bufidx++; |
25 | bufidx &= 7; |
25 | bufidx &= 7; |
26 | |
26 | |
27 | va_start(args, format); |
27 | va_start(args, format); |
28 | len = vsnprintf(buf[bufidx], sizeof(buf[bufidx]), format, args); |
28 | len = vsnprintf(buf[bufidx], sizeof(buf[bufidx]), format, args); |
29 | va_end(args); |
29 | va_end(args); |
30 | if (len>sizeof(buf[bufidx])) { |
30 | if (len>sizeof(buf[bufidx])) { |
31 | fprintf(stderr, "[html.c] string truncated: %s\n", format); |
31 | fprintf(stderr, "[html.c] string truncated: %s\n", format); |
32 | exit(1); |
32 | exit(1); |
33 | } |
33 | } |
34 | return buf[bufidx]; |
34 | return buf[bufidx]; |
35 | } |
35 | } |
36 | |
36 | |
37 | void html(const char *txt) |
37 | void html(const char *txt) |
38 | { |
38 | { |
39 | write(htmlfd, txt, strlen(txt)); |
39 | write(htmlfd, txt, strlen(txt)); |
40 | } |
40 | } |
41 | |
41 | |
42 | void htmlf(const char *format, ...) |
42 | void htmlf(const char *format, ...) |
43 | { |
43 | { |
44 | static char buf[65536]; |
44 | static char buf[65536]; |
45 | va_list args; |
45 | va_list args; |
46 | |
46 | |
47 | va_start(args, format); |
47 | va_start(args, format); |
48 | vsnprintf(buf, sizeof(buf), format, args); |
48 | vsnprintf(buf, sizeof(buf), format, args); |
49 | va_end(args); |
49 | va_end(args); |
50 | html(buf); |
50 | html(buf); |
51 | } |
51 | } |
52 | |
52 | |
53 | void html_txt(char *txt) |
53 | void html_txt(char *txt) |
54 | { |
54 | { |
55 | char *t = txt; |
55 | char *t = txt; |
56 | while(t && *t){ |
56 | while(t && *t){ |
57 | int c = *t; |
57 | int c = *t; |
58 | if (c=='<' || c=='>' || c=='&') { |
58 | if (c=='<' || c=='>' || c=='&') { |
59 | *t = '\0'; |
59 | *t = '\0'; |
60 | html(txt); |
60 | html(txt); |
61 | *t = c; |
61 | *t = c; |
62 | if (c=='>') |
62 | if (c=='>') |
63 | html(">"); |
63 | html(">"); |
64 | else if (c=='<') |
64 | else if (c=='<') |
65 | html("<"); |
65 | html("<"); |
66 | else if (c=='&') |
66 | else if (c=='&') |
67 | html("&"); |
67 | html("&"); |
68 | txt = t+1; |
68 | txt = t+1; |
69 | } |
69 | } |
70 | t++; |
70 | t++; |
71 | } |
71 | } |
72 | if (t!=txt) |
72 | if (t!=txt) |
73 | html(txt); |
73 | html(txt); |
74 | } |
74 | } |
75 | |
75 | |
76 | void html_ntxt(int len, char *txt) |
76 | void html_ntxt(int len, char *txt) |
77 | { |
77 | { |
78 | char *t = txt; |
78 | char *t = txt; |
79 | while(t && *t && len--){ |
79 | while(t && *t && len--){ |
80 | int c = *t; |
80 | int c = *t; |
81 | if (c=='<' || c=='>' || c=='&') { |
81 | if (c=='<' || c=='>' || c=='&') { |
82 | *t = '\0'; |
82 | *t = '\0'; |
83 | html(txt); |
83 | html(txt); |
84 | *t = c; |
84 | *t = c; |
85 | if (c=='>') |
85 | if (c=='>') |
86 | html(">"); |
86 | html(">"); |
87 | else if (c=='<') |
87 | else if (c=='<') |
88 | html("<"); |
88 | html("<"); |
89 | else if (c=='&') |
89 | else if (c=='&') |
90 | html("&"); |
90 | html("&"); |
91 | txt = t+1; |
91 | txt = t+1; |
92 | } |
92 | } |
93 | t++; |
93 | t++; |
94 | } |
94 | } |
95 | if (t!=txt) { |
95 | if (t!=txt) { |
96 | char c = *t; |
96 | char c = *t; |
97 | *t = '\0'; |
97 | *t = '\0'; |
98 | html(txt); |
98 | html(txt); |
99 | *t = c; |
99 | *t = c; |
100 | } |
100 | } |
101 | if (len<0) |
101 | if (len<0) |
102 | html("..."); |
102 | html("..."); |
103 | } |
103 | } |
104 | |
104 | |
105 | void html_attr(char *txt) |
105 | void html_attr(char *txt) |
106 | { |
106 | { |
107 | char *t = txt; |
107 | char *t = txt; |
108 | while(t && *t){ |
108 | while(t && *t){ |
109 | int c = *t; |
109 | int c = *t; |
110 | if (c=='<' || c=='>' || c=='\'') { |
110 | if (c=='<' || c=='>' || c=='\'') { |
111 | *t = '\0'; |
111 | *t = '\0'; |
112 | html(txt); |
112 | html(txt); |
113 | *t = c; |
113 | *t = c; |
114 | if (c=='>') |
114 | if (c=='>') |
115 | html(">"); |
115 | html(">"); |
116 | else if (c=='<') |
116 | else if (c=='<') |
117 | html("<"); |
117 | html("<"); |
118 | else if (c=='\'') |
118 | else if (c=='\'') |
119 | html(""e;"); |
119 | html(""e;"); |
120 | txt = t+1; |
120 | txt = t+1; |
121 | } |
121 | } |
122 | t++; |
122 | t++; |
123 | } |
123 | } |
124 | if (t!=txt) |
124 | if (t!=txt) |
125 | html(txt); |
125 | html(txt); |
126 | } |
126 | } |
127 | |
127 | |
128 | void html_hidden(char *name, char *value) |
128 | void html_hidden(char *name, char *value) |
129 | { |
129 | { |
130 | html("<input type='hidden' name='"); |
130 | html("<input type='hidden' name='"); |
131 | html_attr(name); |
131 | html_attr(name); |
132 | html("' value='"); |
132 | html("' value='"); |
133 | html_attr(value); |
133 | html_attr(value); |
134 | html("'/>"); |
134 | html("'/>"); |
135 | } |
135 | } |
136 | |
136 | |
137 | void html_option(char *value, char *text, char *selected_value) |
137 | void html_option(char *value, char *text, char *selected_value) |
138 | { |
138 | { |
139 | html("<option value='"); |
139 | html("<option value='"); |
140 | html_attr(value); |
140 | html_attr(value); |
141 | html("'"); |
141 | html("'"); |
142 | if (selected_value && !strcmp(selected_value, value)) |
142 | if (selected_value && !strcmp(selected_value, value)) |
143 | html(" selected='selected'"); |
143 | html(" selected='selected'"); |
144 | html(">"); |
144 | html(">"); |
145 | html_txt(text); |
145 | html_txt(text); |
146 | html("</option>\n"); |
146 | html("</option>\n"); |
147 | } |
147 | } |
148 | |
148 | |
149 | void html_link_open(char *url, char *title, char *class) |
149 | void html_link_open(char *url, char *title, char *class) |
150 | { |
150 | { |
151 | html("<a href='"); |
151 | html("<a href='"); |
152 | html_attr(url); |
152 | html_attr(url); |
153 | if (title) { |
153 | if (title) { |
154 | html("' title='"); |
154 | html("' title='"); |
155 | html_attr(title); |
155 | html_attr(title); |
156 | } |
156 | } |
157 | if (class) { |
157 | if (class) { |
158 | html("' class='"); |
158 | html("' class='"); |
159 | html_attr(class); |
159 | html_attr(class); |
160 | } |
160 | } |
161 | html("'>"); |
161 | html("'>"); |
162 | } |
162 | } |
163 | |
163 | |
164 | void html_link_close(void) |
164 | void html_link_close(void) |
165 | { |
165 | { |
166 | html("</a>"); |
166 | html("</a>"); |
167 | } |
167 | } |
168 | |
168 | |
169 | void html_fileperm(unsigned short mode) |
169 | void html_fileperm(unsigned short mode) |
170 | { |
170 | { |
171 | htmlf("%c%c%c", (mode & 4 ? 'r' : '-'), |
171 | htmlf("%c%c%c", (mode & 4 ? 'r' : '-'), |
172 | (mode & 2 ? 'w' : '-'), (mode & 1 ? 'x' : '-')); |
172 | (mode & 2 ? 'w' : '-'), (mode & 1 ? 'x' : '-')); |
173 | } |
173 | } |
174 | |
174 | |
175 | int html_include(const char *filename) |
175 | int html_include(const char *filename) |
176 | { |
176 | { |
177 | FILE *f; |
177 | FILE *f; |
178 | char buf[4096]; |
178 | char buf[4096]; |
179 | size_t len; |
179 | size_t len; |
180 | |
180 | |
181 | if (!(f = fopen(filename, "r"))) |
181 | if (!(f = fopen(filename, "r"))) |
182 | return -1; |
182 | return -1; |
183 | while((len = fread(buf, 1, 4096, f)) > 0) |
183 | while((len = fread(buf, 1, 4096, f)) > 0) |
184 | write(htmlfd, buf, len); |
184 | write(htmlfd, buf, len); |
185 | fclose(f); |
185 | fclose(f); |
186 | return 0; |
186 | return 0; |
187 | } |
187 | } |
| |
188 | |
| |
189 | int hextoint(char c) |
| |
190 | { |
| |
191 | if (c >= 'a' && c <= 'f') |
| |
192 | return 10 + c - 'a'; |
| |
193 | else if (c >= 'A' && c <= 'F') |
| |
194 | return 10 + c - 'A'; |
| |
195 | else if (c >= '0' && c <= '9') |
| |
196 | return c - '0'; |
| |
197 | else |
| |
198 | return -1; |
| |
199 | } |
| |
200 | |
| |
201 | char *convert_query_hexchar(char *txt) |
| |
202 | { |
| |
203 | int d1, d2; |
| |
204 | if (strlen(txt) < 3) { |
| |
205 | *txt = '\0'; |
| |
206 | return txt-1; |
| |
207 | } |
| |
208 | d1 = hextoint(*(txt+1)); |
| |
209 | d2 = hextoint(*(txt+2)); |
| |
210 | if (d1<0 || d2<0) { |
| |
211 | strcpy(txt, txt+3); |
| |
212 | return txt-1; |
| |
213 | } else { |
| |
214 | *txt = d1 * 16 + d2; |
| |
215 | strcpy(txt+1, txt+3); |
| |
216 | return txt; |
| |
217 | } |
| |
218 | } |
| |
219 | |
| |
220 | int http_parse_querystring(char *txt, void (*fn)(const char *name, const char *value)) |
| |
221 | { |
| |
222 | char *t, *value = NULL, c; |
| |
223 | |
| |
224 | if (!txt) |
| |
225 | return 0; |
| |
226 | |
| |
227 | t = txt = strdup(txt); |
| |
228 | if (t == NULL) { |
| |
229 | printf("Out of memory\n"); |
| |
230 | exit(1); |
| |
231 | } |
| |
232 | while((c=*t) != '\0') { |
| |
233 | if (c=='=') { |
| |
234 | *t = '\0'; |
| |
235 | value = t+1; |
| |
236 | } else if (c=='+') { |
| |
237 | *t = ' '; |
| |
238 | } else if (c=='%') { |
| |
239 | t = convert_query_hexchar(t); |
| |
240 | } else if (c=='&') { |
| |
241 | *t = '\0'; |
| |
242 | (*fn)(txt, value); |
| |
243 | txt = t+1; |
| |
244 | value = NULL; |
| |
245 | } |
| |
246 | t++; |
| |
247 | } |
| |
248 | if (t!=txt) |
| |
249 | (*fn)(txt, value); |
| |
250 | return 0; |
| |
251 | } |
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