Fossil

  entry_attribute("Administrator email address", 40, "email-admin",
                   "eadmin", "", 0);
  @ <p>This is the email for the human administrator for the system.
  @ Abuse and trouble reports are send here.
  @ (Property: "email-admin")</p>
  @ <hr>

  entry_attribute("Inbound email directory", 40, "email-receive-dir",
                   "erdir", "", 0);
  @ <p>Inbound emails can be stored in a directory for analysis as
  @ a debugging aid.  Put the name of that directory in this entry box.
  @ Disable saving of inbound email by making this an empty string.
  @ Abuse and trouble reports are send here.
  @ (Property: "email-receive-dir")</p>
  @ <hr>
  @ <p><input type="submit"  name="submit" value="Apply Changes" /></p>
  @ </div></form>
  db_end_transaction(0);
  style_footer();
}

/*
** Encode pMsg as MIME base64 and append it to pOut
*/
static void append_base64(Blob *pOut, Blob *pMsg){
  int n, i, k;
  char zBuf[100];
  n = blob_size(pMsg);
  for(i=0; i<n; i+=54){
    k = translateBase64(blob_buffer(pMsg)+i, i+54<n ? 54 : n-i, zBuf);
    blob_append(pOut, zBuf, k);
    blob_append(pOut, "\r\n", 2);
  }
}

/*
** Come up with a unique filename in the zDir directory.
**
** Space to hold the filename is obtained from mprintf() and must
** be freed using fossil_free() by the caller.
*/
static char *emailTempFilename(const char *zDir){
  char *zFile = db_text(0,
     "SELECT %Q||strftime('/%%Y%%m%%d%%H%%M%%S-','now')||hex(randomblob(8))",
        zDir);
  return zFile;
}

#if defined(_WIN32) || defined(WIN32)
# undef popen
# define popen _popen
# undef pclose
# define pclose _pclose
#endif

      if( out ){
        fwrite(blob_buffer(&all), 1, blob_size(&all), out);
        fclose(out);
      }
    }
  }else if( strcmp(zDest, "dir")==0 ){
    const char *zDir = db_get("email-send-dir","./");
    char *zFile = emailTempFilename(zDir);


    blob_write_to_file(&all, zFile);
    fossil_free(zFile);
  }else if( strcmp(zDest, "stdout")==0 ){
    fossil_print("%s\n", blob_str(&all));
  }
  blob_zero(&all);
}

/*
** Analyze and act on a received email.
**
** This routine takes ownership of the Blob parameter and is responsible
** for freeing that blob when it is done with it.
**
** This routine acts on all email messages received from the
** "fossil email inbound" command.
*/
void email_receive(Blob *pMsg){
  /* To Do:  Look for bounce messages and possibly disable subscriptions */
  blob_zero(pMsg);
}

/*
** SETTING: email-send-method         width=5 default=off
** Determine the method used to send email.  Allowed values are
** "off", "pipe", "dir", "db", and "stdout".  The "off" value means
** no email is ever sent.  The "pipe" value means email messages are
** piped into a command determined by the email-send-command setting.

** if the email-send-method is set to "db".
*/
/*
** SETTING: email-self               width=40
** This is the email address for the repository.  Outbound emails add
** this email address as the "From:" field.
*/
/*
** SETTING: email-receive-dir         width=40
** Inbound email messages are saved as separate files in this directory,
** for debugging analysis.  Disable saving of inbound emails omitting
** this setting, or making it an empty string.
*/


/*
** COMMAND: email
** 
** Usage: %fossil email SUBCOMMAND ARGS...
**
** Subcommands:
**
**    inbound [FILE]          Receive an inbound email message.  This message
**                            is analyzed to see if it is a bounce, and if
**                            necessary, subscribers may be disabled.
**
**    reset                   Hard reset of all email notification tables
**                            in the repository.  This erases all subscription
**                            information.  Use with extreme care.
**
**    send TO [OPTIONS]       Send a single email message using whatever
**                            email sending mechanism is currently configured.

void email_cmd(void){
  const char *zCmd;
  int nCmd;
  db_find_and_open_repository(0, 0);
  email_schema();
  zCmd = g.argc>=3 ? g.argv[2] : "x";
  nCmd = (int)strlen(zCmd);
  if( strncmp(zCmd, "inbound", nCmd)==0 ){
    Blob email;
    const char *zInboundDir = db_get("email-receive-dir","");
    verify_all_options();
    if( g.argc!=3 && g.argc!=4 ){
      usage("inbound [FILE]");
    }
    blob_read_from_file(&email, g.argc==3 ? "-" : g.argv[3], ExtFILE);
    if( zInboundDir[0] ){
      char *zFN = emailTempFilename(zInboundDir);
      blob_write_to_file(&email, zFN);
      fossil_free(zFN);
    }
    email_receive(&email);
  }else
  if( strncmp(zCmd, "reset", nCmd)==0 ){
    Blob yn;
    int c;
    fossil_print(
        "This will erase all content in the repository tables, thus\n"
        "deleting all subscriber information.  The information will be\n"
        "unrecoverable.\n");

    pSetting = setting_info(&nSetting);
    for(; nSetting>0; nSetting--, pSetting++ ){
      if( strncmp(pSetting->name,"email-",6)!=0 ) continue;
      print_setting(pSetting);
    }
  }
  else{
    usage("inbound|reset|send|setting");
  }
}

/*
** Do error checking on a submitted subscription form.  Return TRUE
** if the submission is valid.  Return false if any problems are seen.
*/