webcit/calendar_view.c

   1 /*
   2  * $Id$
   3  *
   4  *
   5  */
   6
   7 #include <ctype.h>
   8 #include <stdlib.h>
   9 #include <unistd.h>
  10 #include <stdio.h>
  11 #include <fcntl.h>
  12 #include <signal.h>
  13 #include <sys/types.h>
  14 #include <sys/wait.h>
  15 #include <sys/socket.h>
  16 #include <limits.h>
  17 #include <netinet/in.h>
  18 #include <netdb.h>
  19 #include <string.h>
  20 #include <pwd.h>
  21 #include <errno.h>
  22 #include <stdarg.h>
  23 #include <pthread.h>
  24 #include <signal.h>
  25 #include <time.h>
  26 #include "webcit.h"
  27 #include "webserver.h"
  28
  29 #ifndef HAVE_ICAL_H
  30
  31 void do_calendar_view(void) {   /* stub for non-libical builds */
  32         wprintf("<CENTER><I>Calendar view not available</I></CENTER><BR>\n");
  33 }
  34
  35 #else   /* HAVE_ICAL_H */
  36
  37 /****************************************************************************/
  38
  39 void calendar_month_view_display_events(time_t thetime) {
  40         int i;
  41         struct tm *tm;
  42         icalproperty *p;
  43         struct icaltimetype t;
  44         int month, day, year;
  45
  46         if (WC->num_cal == 0) {
  47                 wprintf("<BR><BR><BR>\n");
  48                 return;
  49         }
  50
  51         tm = localtime(&thetime);
  52         month = tm->tm_mon + 1;
  53         day = tm->tm_mday;
  54         year = tm->tm_year + 1900;
  55
  56         for (i=0; i<(WC->num_cal); ++i) {
  57                 p = icalcomponent_get_first_property(WC->disp_cal[i],
  58                                                 ICAL_DTSTART_PROPERTY);
  59                 if (p != NULL) {
  60                         t = icalproperty_get_dtstart(p);
  61                         if ((t.year == year)
  62                            && (t.month == month)
  63                            && (t.day == day)) {
  64
  65                                 p = icalcomponent_get_first_property(
  66                                                         WC->disp_cal[i],
  67                                                         ICAL_SUMMARY_PROPERTY);
  68                                 if (p != NULL) {
  69                                         wprintf("<FONT SIZE=-1>"
  70                                                 "<A HREF=\"/display_edit_event?msgnum=%ld&calview=%s&year=%s&month=%s&day=%s\">",
  71                                                 WC->cal_msgnum[i],
  72                                                 bstr("calview"),
  73                                                 bstr("year"),
  74                                                 bstr("month"),
  75                                                 bstr("day")
  76                                         );
  77                                         escputs((char *)
  78                                                 icalproperty_get_comment(p));
  79                                         wprintf("</A></FONT>\n");
  80                                 }
  81
  82                         }
  83
  84
  85                 }
  86         }
  87 }
  88
  89
  90
  91 void calendar_month_view(int year, int month, int day) {
  92         struct tm starting_tm;
  93         struct tm *tm;
  94         time_t thetime;
  95         int i;
  96         time_t previous_month;
  97         time_t next_month;
  98
  99         /* Determine what day to start.
 100          * First, back up to the 1st of the month...
 101          */
 102         memset(&starting_tm, 0, sizeof(struct tm));
 103         starting_tm.tm_year = year - 1900;
 104         starting_tm.tm_mon = month - 1;
 105         starting_tm.tm_mday = day;
 106         thetime = mktime(&starting_tm);
 107
 108         tm = &starting_tm;
 109         while (tm->tm_mday != 1) {
 110                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 111                 tm = localtime(&thetime);
 112         }
 113
 114         /* Determine previous and next months ... for links */
 115         previous_month = thetime - (time_t)864000L;     /* back 10 days */
 116         next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
 117         lprintf(9, "previous month is %s", asctime(localtime(&previous_month)));
 118         lprintf(9, "next month is %s", asctime(localtime(&next_month)));
 119
 120         /* Now back up until we're on a Sunday */
 121         tm = localtime(&thetime);
 122         while (tm->tm_wday != 0) {
 123                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 124                 tm = localtime(&thetime);
 125         }
 126
 127         /* Outer table (to get the background color) */
 128         wprintf("<TABLE width=100%% border=0 cellpadding=0 cellspacing=0 "
 129                 "bgcolor=#4444FF><TR><TD>\n");
 130
 131         wprintf("<CENTER><H3>");
 132
 133         tm = localtime(&previous_month);
 134         wprintf("<A HREF=\"readfwd?calview=month&year=%d&month=%d&day=1\">",
 135                 (int)(tm->tm_year)+1900, tm->tm_mon + 1);
 136         wprintf("<IMG ALIGN=MIDDLE SRC=\"/static/back.gif\" BORDER=0></A>\n");
 137
 138         wprintf("&nbsp;&nbsp;"
 139                 "<FONT COLOR=#FFFFFF>"
 140                 "%s %d"
 141                 "</FONT>"
 142                 "&nbsp;&nbsp;", months[month-1], year);
 143
 144         tm = localtime(&next_month);
 145         wprintf("<A HREF=\"readfwd?calview=month&year=%d&month=%d&day=1\">",
 146                 (int)(tm->tm_year)+1900, tm->tm_mon + 1);
 147         wprintf("<IMG ALIGN=MIDDLE SRC=\"/static/forward.gif\" BORDER=0></A>\n");
 148
 149         wprintf("</H3>");
 150
 151         /* Inner table (the real one) */
 152         wprintf("<TABLE width=100%% border=0 cellpadding=1 cellspacing=1 "
 153                 "bgcolor=#4444FF>");
 154         for (i=0; i<7; ++i) {
 155                 wprintf("<TH><FONT COLOR=#FFFFFF>%s</FONT></TH>", days[i]);
 156         }
 157
 158         /* Now do 35 days */
 159         for (i = 0; i < 35; ++i) {
 160                 tm = localtime(&thetime);
 161                 if (tm->tm_wday == 0) {
 162                         wprintf("<TR>");
 163                 }
 164
 165                 wprintf("<TD BGCOLOR=FFFFFF WIDTH=14%% HEIGHT=60 VALIGN=TOP>"
 166                         "<B>");
 167                 if ((i==0) || (tm->tm_mday == 1)) {
 168                         wprintf("%s ", months[tm->tm_mon]);
 169                 }
 170                 wprintf("<A HREF=\"readfwd?calview=day&year=%d&month=%d&day=%d\">"
 171                         "%d</A></B><BR>",
 172                         tm->tm_year + 1900,
 173                         tm->tm_mon + 1,
 174                         tm->tm_mday,
 175                         tm->tm_mday);
 176
 177                 /* put the data here, stupid */
 178                 calendar_month_view_display_events(thetime);
 179
 180                 wprintf("</TD>");
 181
 182                 if (tm->tm_wday == 6) {
 183                         wprintf("</TR>\n");
 184                 }
 185
 186                 thetime += (time_t)86400;               /* ahead 24 hours */
 187         }
 188
 189         wprintf("</TABLE>"                      /* end of inner table */
 190                 "</TD></TR></TABLE>"            /* end of outer table */
 191                 "</CENTER>\n");
 192 }
 193
 194
 195 void calendar_week_view(int year, int month, int day) {
 196         wprintf("<CENTER><I>week view FIXME</I></CENTER><BR>\n");
 197 }
 198
 199
 200 void calendar_day_view(int year, int month, int day) {
 201         struct tm starting_tm;
 202         time_t thetime;
 203
 204         /* Determine what day we're viewing.
 205          */
 206         memset(&starting_tm, 0, sizeof(struct tm));
 207         starting_tm.tm_year = year - 1900;
 208         starting_tm.tm_mon = month - 1;
 209         starting_tm.tm_mday = day;
 210         thetime = mktime(&starting_tm);
 211
 212         wprintf("<CENTER><H3>%s %d, %d</H3></CENTER>\n",
 213                 months[month-1], day, year);
 214
 215         /* put the data here, stupid */
 216         calendar_month_view_display_events(thetime);
 217
 218         wprintf("<A HREF=\"readfwd?calview=month&year=%d&month=%d&day=1\">"
 219                 "Back to month view</A><BR>\n", year, month);
 220 }
 221
 222
 223
 224
 225 void do_calendar_view(void) {
 226         int i;
 227         time_t now;
 228         struct tm *tm;
 229         int year, month, day;
 230         char calview[SIZ];
 231
 232         /* In case no date was specified, go with today */
 233         now = time(NULL);
 234         tm = localtime(&now);
 235         year = tm->tm_year + 1900;
 236         month = tm->tm_mon + 1;
 237         day = tm->tm_mday;
 238
 239         /* Now see if a date was specified */
 240         if (strlen(bstr("year")) > 0) year = atoi(bstr("year"));
 241         if (strlen(bstr("month")) > 0) month = atoi(bstr("month"));
 242         if (strlen(bstr("day")) > 0) day = atoi(bstr("day"));
 243
 244         /* How would you like that cooked? */
 245         if (strlen(bstr("calview")) > 0) {
 246                 strcpy(calview, bstr("calview"));
 247         }
 248         else {
 249                 strcpy(calview, "month");
 250         }
 251
 252         /* Display the selected view */
 253         if (!strcasecmp(calview, "day")) {
 254                 calendar_day_view(year, month, day);
 255         }
 256         else if (!strcasecmp(calview, "week")) {
 257                 calendar_week_view(year, month, day);
 258         }
 259         else {
 260                 calendar_month_view(year, month, day);
 261         }
 262
 263         /* Free the calendar stuff */
 264         if (WC->num_cal) for (i=0; i<(WC->num_cal); ++i) {
 265                 icalcomponent_free(WC->disp_cal[i]);
 266         }
 267         WC->num_cal = 0;
 268         free(WC->disp_cal);
 269         WC->disp_cal = NULL;
 270         free(WC->cal_msgnum);
 271         WC->cal_msgnum = NULL;
 272 }
 273
 274
 275 #endif  /* HAVE_ICAL_H */