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ef416fc2 | 1 | /* |
bc44d920 | 2 | * "$Id: html.c 6649 2007-07-11 21:46:42Z mike $" |
ef416fc2 | 3 | * |
4 | * HTML support functions for the Common UNIX Printing System (CUPS). | |
5 | * | |
bc44d920 | 6 | * Copyright 2007 by Apple Inc. |
ef416fc2 | 7 | * Copyright 1997-2006 by Easy Software Products. |
8 | * | |
9 | * These coded instructions, statements, and computer programs are the | |
bc44d920 | 10 | * property of Apple Inc. and are protected by Federal copyright |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
12 | * which should have been included with this file. If this file is | |
13 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ef416fc2 | 14 | * |
15 | * Contents: | |
16 | * | |
17 | * cgiEndHTML() - End a HTML page. | |
18 | * cgiFormEncode() - Encode a string as a form variable... | |
19 | * cgiStartHTML() - Start a HTML page. | |
20 | * cgi_null_passwd() - Return a NULL password for authentication. | |
21 | */ | |
22 | ||
23 | /* | |
24 | * Include necessary headers... | |
25 | */ | |
26 | ||
27 | #include "cgi-private.h" | |
28 | ||
29 | ||
30 | /* | |
31 | * Local functions... | |
32 | */ | |
33 | ||
34 | static const char *cgi_null_passwd(const char *prompt); | |
35 | ||
36 | ||
37 | /* | |
38 | * 'cgiEndHTML()' - End a HTML page. | |
39 | */ | |
40 | ||
41 | void | |
42 | cgiEndHTML(void) | |
43 | { | |
44 | /* | |
45 | * Send the standard trailer... | |
46 | */ | |
47 | ||
48 | cgiCopyTemplateLang("trailer.tmpl"); | |
49 | } | |
50 | ||
51 | ||
52 | /* | |
53 | * 'cgiFormEncode()' - Encode a string as a form variable... | |
54 | */ | |
55 | ||
56 | char * /* O - Destination string */ | |
57 | cgiFormEncode(char *dst, /* I - Destination string */ | |
58 | const char *src, /* I - Source string */ | |
59 | size_t dstsize) /* I - Size of destination string */ | |
60 | { | |
61 | char *dstptr, /* Pointer into destination */ | |
62 | *dstend; /* End of destination */ | |
63 | static const char *hex = /* Hexadecimal characters */ | |
64 | "0123456789ABCDEF"; | |
65 | ||
66 | ||
67 | /* | |
68 | * Mark the end of the string... | |
69 | */ | |
70 | ||
71 | dstend = dst + dstsize - 1; | |
72 | ||
73 | /* | |
74 | * Loop through the source string and copy... | |
75 | */ | |
76 | ||
77 | for (dstptr = dst; *src && dstptr < dstend;) | |
78 | { | |
79 | switch (*src) | |
80 | { | |
81 | case ' ' : | |
82 | /* | |
83 | * Encode spaces with a "+"... | |
84 | */ | |
85 | ||
86 | *dstptr++ = '+'; | |
87 | src ++; | |
88 | break; | |
89 | ||
90 | case '&' : | |
91 | case '%' : | |
92 | case '+' : | |
93 | /* | |
94 | * Encode special characters with %XX escape... | |
95 | */ | |
96 | ||
97 | if (dstptr < (dstend - 2)) | |
98 | { | |
99 | *dstptr++ = '%'; | |
100 | *dstptr++ = hex[(*src & 255) >> 4]; | |
101 | *dstptr++ = hex[*src & 15]; | |
102 | src ++; | |
103 | } | |
104 | break; | |
105 | ||
106 | default : | |
107 | /* | |
108 | * Copy other characters literally... | |
109 | */ | |
110 | ||
111 | *dstptr++ = *src++; | |
112 | break; | |
113 | } | |
114 | } | |
115 | ||
116 | /* | |
117 | * Nul-terminate the destination string... | |
118 | */ | |
119 | ||
120 | *dstptr = '\0'; | |
121 | ||
122 | /* | |
123 | * Return the encoded string... | |
124 | */ | |
125 | ||
126 | return (dst); | |
127 | } | |
128 | ||
129 | ||
130 | /* | |
131 | * 'cgiStartHTML()' - Start a HTML page. | |
132 | */ | |
133 | ||
134 | void | |
135 | cgiStartHTML(const char *title) /* I - Title of page */ | |
136 | { | |
137 | /* | |
138 | * Disable any further authentication attempts... | |
139 | */ | |
140 | ||
141 | cupsSetPasswordCB(cgi_null_passwd); | |
142 | ||
143 | /* | |
144 | * Tell the client to expect UTF-8 encoded HTML... | |
145 | */ | |
146 | ||
147 | puts("Content-Type: text/html;charset=utf-8\n"); | |
148 | ||
149 | /* | |
150 | * Send a standard header... | |
151 | */ | |
152 | ||
153 | cgiSetVariable("TITLE", title); | |
154 | cgiSetServerVersion(); | |
155 | ||
156 | cgiCopyTemplateLang("header.tmpl"); | |
157 | } | |
158 | ||
159 | ||
160 | /* | |
161 | * 'cgi_null_passwd()' - Return a NULL password for authentication. | |
162 | */ | |
163 | ||
164 | static const char * /* O - NULL */ | |
165 | cgi_null_passwd(const char *prompt) /* I - Prompt string (unused) */ | |
166 | { | |
167 | (void)prompt; | |
168 | ||
f301802f | 169 | fprintf(stderr, "DEBUG: cgi_null_passwd(prompt=\"%s\") called!\n", |
170 | prompt ? prompt : "(null)"); | |
ef416fc2 | 171 | |
172 | return (NULL); | |
173 | } | |
174 | ||
175 | ||
176 | /* | |
bc44d920 | 177 | * End of "$Id: html.c 6649 2007-07-11 21:46:42Z mike $". |
ef416fc2 | 178 | */ |