citadel/modules/notes/serv_notes.c

   1 /*
   2  * $Id$
   3  *
   4  * Handles functions related to yellow sticky notes.
   5  *
   6  */
   7
   8 #include "sysdep.h"
   9 #include <stdlib.h>
  10 #include <unistd.h>
  11 #include <stdio.h>
  12 #include <fcntl.h>
  13 #include <signal.h>
  14 #include <pwd.h>
  15 #include <errno.h>
  16 #include <sys/types.h>
  17
  18 #if TIME_WITH_SYS_TIME
  19 # include <sys/time.h>
  20 # include <time.h>
  21 #else
  22 # if HAVE_SYS_TIME_H
  23 #  include <sys/time.h>
  24 # else
  25 #  include <time.h>
  26 # endif
  27 #endif
  28
  29 #include <sys/wait.h>
  30 #include <string.h>
  31 #include <limits.h>
  32 #include <libcitadel.h>
  33 #include "citadel.h"
  34 #include "server.h"
  35 #include "citserver.h"
  36 #include "support.h"
  37 #include "config.h"
  38 #include "room_ops.h"
  39 #include "user_ops.h"
  40 #include "policy.h"
  41 #include "database.h"
  42 #include "msgbase.h"
  43
  44 #include "ctdl_module.h"
  45
  46
  47 /*
  48  * Callback function for serv_notes_beforesave() hunts for a vNote in the MIME structure
  49  */
  50 void notes_extract_vnote(char *name, char *filename, char *partnum, char *disp,
  51                    void *content, char *cbtype, char *cbcharset, size_t length,
  52                    char *encoding, char *cbid, void *cbuserdata)
  53 {
  54         struct vnote **v = (struct vnote **) cbuserdata;
  55
  56         if (!strcasecmp(cbtype, "text/vnote")) {
  57
  58                 CtdlLogPrintf(CTDL_DEBUG, "Part %s contains a vNote!  Loading...\n", partnum);
  59                 if (*v != NULL) {
  60                         vnote_free(*v);
  61                 }
  62                 *v = vnote_new_from_str(content);
  63         }
  64 }
  65
  66
  67 /*
  68  * Before-save hook searches for two different types of notes (legacy Kolab/Aethera notes
  69  * and modern vNote format notes) and does its best to learn the subject (summary)
  70  * and EUID (uid) of the note for Citadel's own nefarious purposes.
  71  */
  72 int serv_notes_beforesave(struct CtdlMessage *msg)
  73 {
  74         char *p;
  75         int a, i;
  76         char uuid[512];
  77         struct vnote *v = NULL;
  78
  79         /* First determine if this room has the "notes" view set */
  80
  81         if (CC->room.QRdefaultview != VIEW_NOTES) {
  82                 return(0);                      /* not notes; do nothing */
  83         }
  84
  85         /* It must be an RFC822 message! */
  86         if (msg->cm_format_type != 4) {
  87                 return(0);      /* You tried to save a non-RFC822 message! */
  88         }
  89
  90         /*
  91          * If we are in a "notes" view room, and the client has sent an RFC822
  92          * message containing an X-KOrg-Note-Id: field (Aethera does this, as
  93          * do some Kolab clients) then set both the Subject and the Exclusive ID
  94          * of the message to that.  It's going to be a UUID so we want to replace
  95          * any existing message containing that UUID.
  96          */
  97         strcpy(uuid, "");
  98         p = msg->cm_fields['M'];
  99         a = strlen(p);
 100         while (--a > 0) {
 101                 if (!strncasecmp(p, "X-KOrg-Note-Id: ", 16)) {  /* Found it */
 102                         safestrncpy(uuid, p + 16, sizeof(uuid));
 103                         for (i = 0; uuid[i]; ++i) {
 104                                 if ( (uuid[i] == '\r') || (uuid[i] == '\n') ) {
 105                                         uuid[i] = 0;
 106                                         break;
 107                                 }
 108                         }
 109
 110                         CtdlLogPrintf(9, "UUID of note is: %s\n", uuid);
 111                         if (!IsEmptyStr(uuid)) {
 112
 113                                 if (msg->cm_fields['E'] != NULL) {
 114                                         free(msg->cm_fields['E']);
 115                                 }
 116                                 msg->cm_fields['E'] = strdup(uuid);
 117
 118                                 if (msg->cm_fields['U'] != NULL) {
 119                                         free(msg->cm_fields['U']);
 120                                 }
 121                                 msg->cm_fields['U'] = strdup(uuid);
 122                         }
 123                 }
 124                 p++;
 125         }
 126
 127         /* Modern clients are using vNote format.  Check for one... */
 128
 129         mime_parser(msg->cm_fields['M'],
 130                 NULL,
 131                 *notes_extract_vnote,
 132                 NULL, NULL,
 133                 &v,             /* user data ptr - put the vnote here */
 134                 0
 135         );
 136
 137         if (v == NULL) return(0);       /* no vNotes were found in this message */
 138
 139         /* Set the message EUID to the vNote UID */
 140
 141         if (v->uid) if (!IsEmptyStr(v->uid)) {
 142                 CtdlLogPrintf(9, "UID of vNote is: %s\n", v->uid);
 143                 if (msg->cm_fields['E'] != NULL) {
 144                         free(msg->cm_fields['E']);
 145                 }
 146                 msg->cm_fields['E'] = strdup(v->uid);
 147         }
 148
 149         /* Set the message Subject to the vNote Summary */
 150
 151         if (v->summary) if (!IsEmptyStr(v->summary)) {
 152                 if (msg->cm_fields['U'] != NULL) {
 153                         free(msg->cm_fields['U']);
 154                 }
 155                 msg->cm_fields['U'] = strdup(v->summary);
 156                 if (strlen(msg->cm_fields['U']) > 72) {
 157                         strcpy(&msg->cm_fields['U'][68], "...");
 158                 }
 159         }
 160
 161         vnote_free(v);
 162
 163         return(0);
 164 }
 165
 166
 167 CTDL_MODULE_INIT(notes)
 168 {
 169         if (!threading)
 170         {
 171                 CtdlRegisterMessageHook(serv_notes_beforesave, EVT_BEFORESAVE);
 172         }
 173
 174         /* return our Subversion id for the Log */
 175         return "$Id$";
 176 }