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1 /* ui-shared.c: common web output functions
2  *
3  * Copyright (C) 2006 Lars Hjemli
4  *
5  * Licensed under GNU General Public License v2
6  *   (see COPYING for full license text)
7  */
8
9 #include "cgit.h"
10
11 const char cgit_doctype[] =
12 "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\n"
13 "  \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n";
14
15 static char *http_date(time_t t)
16 {
17         static char day[][4] =
18                 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
19         static char month[][4] =
20                 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
21                  "Jul", "Aug", "Sep", "Oct", "Now", "Dec"};
22         struct tm *tm = gmtime(&t);
23         return fmt("%s, %02d %s %04d %02d:%02d:%02d GMT", day[tm->tm_wday],
24                    tm->tm_mday, month[tm->tm_mon], 1900+tm->tm_year,
25                    tm->tm_hour, tm->tm_min, tm->tm_sec);
26 }
27
28 static long ttl_seconds(long ttl)
29 {
30         if (ttl<0)
31                 return 60 * 60 * 24 * 365;
32         else
33                 return ttl * 60;
34 }
35
36 void cgit_print_error(char *msg)
37 {
38         html("<div class='error'>");
39         html_txt(msg);
40         html("</div>\n");
41 }
42
43 char *cgit_rooturl()
44 {
45         if (cgit_virtual_root)
46                 return fmt("%s/", cgit_virtual_root);
47         else
48                 return cgit_script_name;
49 }
50
51 char *cgit_repourl(const char *reponame)
52 {
53         if (cgit_virtual_root) {
54                 return fmt("%s/%s/", cgit_virtual_root, reponame);
55         } else {
56                 return fmt("?r=%s", reponame);
57         }
58 }
59
60 char *cgit_pageurl(const char *reponame, const char *pagename,
61                    const char *query)
62 {
63         if (cgit_virtual_root) {
64                 if (query)
65                         return fmt("%s/%s/%s/?%s", cgit_virtual_root, reponame,
66                                    pagename, query);
67                 else
68                         return fmt("%s/%s/%s/", cgit_virtual_root, reponame,
69                                    pagename);
70         } else {
71                 if (query)
72                         return fmt("?r=%s&p=%s&%s", reponame, pagename, query);
73                 else
74                         return fmt("?r=%s&p=%s", reponame, pagename);
75         }
76 }
77
78 char *cgit_currurl()
79 {
80         if (!cgit_virtual_root)
81                 return cgit_script_name;
82         else if (cgit_query_page)
83                 return fmt("%s/%s/%s/", cgit_virtual_root, cgit_query_repo, cgit_query_page);
84         else if (cgit_query_repo)
85                 return fmt("%s/%s/", cgit_virtual_root, cgit_query_repo);
86         else
87                 return fmt("%s/", cgit_virtual_root);
88 }
89
90
91 void cgit_print_date(time_t secs, char *format)
92 {
93         char buf[64];
94         struct tm *time;
95
96         time = gmtime(&secs);
97         strftime(buf, sizeof(buf)-1, format, time);
98         html_txt(buf);
99 }
100
101 void cgit_print_age(time_t t, time_t max_relative, char *format)
102 {
103         time_t now, secs;
104
105         time(&now);
106         secs = now - t;
107
108         if (secs > max_relative && max_relative >= 0) {
109                 cgit_print_date(t, format);
110                 return;
111         }
112
113         if (secs < TM_HOUR * 2) {
114                 htmlf("<span class='age-mins'>%.0f min.</span>",
115                       secs * 1.0 / TM_MIN);
116                 return;
117         }
118         if (secs < TM_DAY * 2) {
119                 htmlf("<span class='age-hours'>%.0f hours</span>",
120                       secs * 1.0 / TM_HOUR);
121                 return;
122         }
123         if (secs < TM_WEEK * 2) {
124                 htmlf("<span class='age-days'>%.0f days</span>",
125                       secs * 1.0 / TM_DAY);
126                 return;
127         }
128         if (secs < TM_MONTH * 2) {
129                 htmlf("<span class='age-weeks'>%.0f weeks</span>",
130                       secs * 1.0 / TM_WEEK);
131                 return;
132         }
133         if (secs < TM_YEAR * 2) {
134                 htmlf("<span class='age-months'>%.0f months</span>",
135                       secs * 1.0 / TM_MONTH);
136                 return;
137         }
138         htmlf("<span class='age-years'>%.0f years</span>",
139               secs * 1.0 / TM_YEAR);
140 }
141
142 void cgit_print_docstart(char *title, struct cacheitem *item)
143 {
144         html("Content-Type: text/html; charset=utf-8\n");
145         htmlf("Last-Modified: %s\n", http_date(item->st.st_mtime));
146         htmlf("Expires: %s\n", http_date(item->st.st_mtime +
147                                          ttl_seconds(item->ttl)));
148         html("\n");
149         html(cgit_doctype);
150         html("<html>\n");
151         html("<head>\n");
152         html("<title>");
153         html_txt(title);
154         html("</title>\n");
155         htmlf("<meta name='generator' content='cgit v%s'/>\n", cgit_version);
156         html("<link rel='stylesheet' type='text/css' href='");
157         html_attr(cgit_css);
158         html("'/>\n");
159         html("</head>\n");
160         html("<body>\n");
161 }
162
163 void cgit_print_docend()
164 {
165         html("</td></tr></table>");
166         html("</body>\n</html>\n");
167 }
168
169 void cgit_print_pageheader(char *title, int show_search)
170 {
171         html("<table id='layout'>");
172         html("<tr><td id='header'>");
173         html(cgit_root_title);
174         html("</td><td id='logo'>");
175         html("<a href='");
176         html_attr(cgit_logo_link);
177         htmlf("'><img src='%s' alt='logo'/></a>", cgit_logo);
178         html("</td></tr>");
179         html("<tr><td id='crumb'>");
180         htmlf("<a href='%s'>root</a>", cgit_rooturl());
181         if (cgit_query_repo) {
182                 htmlf(" : <a href='%s'>", cgit_repourl(cgit_repo->url));
183                 html_txt(cgit_repo->name);
184                 htmlf("</a> : %s", title);
185         }
186         html("</td>");
187         html("<td id='search'>");
188         if (show_search) {
189                 html("<form method='get' action='");
190                 html_attr(cgit_currurl());
191                 html("'>");
192                 if (!cgit_virtual_root) {
193                         if (cgit_query_repo)
194                                 html_hidden("r", cgit_query_repo);
195                         if (cgit_query_page)
196                                 html_hidden("p", cgit_query_page);
197                 }
198                 if (cgit_query_head)
199                         html_hidden("h", cgit_query_head);
200                 if (cgit_query_sha1)
201                         html_hidden("id", cgit_query_sha1);
202                 if (cgit_query_sha2)
203                         html_hidden("id2", cgit_query_sha2);
204                 html("<input type='text' name='q' value='");
205                 html_attr(cgit_query_search);
206                 html("'/></form>");
207         }
208         html("</td></tr>");
209         html("<tr><td id='content' colspan='2'>");
210 }
211
212 void cgit_print_snapshot_start(const char *mimetype, const char *filename,
213                                struct cacheitem *item)
214 {
215         htmlf("Content-Type: %s\n", mimetype);
216         htmlf("Content-Disposition: inline; filename=\"%s\"\n", filename);
217         htmlf("Last-Modified: %s\n", http_date(item->st.st_mtime));
218         htmlf("Expires: %s\n", http_date(item->st.st_mtime +
219                                          ttl_seconds(item->ttl)));
220         html("\n");
221 }