//
-// Identify this client, and the hostname where the user is, to Citadel.
+// Identify ourselves to the Citadel server (do this once after connection)
//
function ctdl_iden() {
global $clientsocket;
+ // Identify client and hostname
serv_puts("IDEN 0|8|001|PHP web client|" . $_SERVER['REMOTE_ADDR'] );
$buf = serv_gets();
+
+ // Also express our message format preferences
+ serv_puts("MSGP text/html|text/plain");
+ $buf = serv_gets();
}
}
+//
+// Fetch the list of messages in this room.
+// Returns: count, response, message array
+//
+function ctdl_msgs($mode, $count) {
+ global $clientsocket;
+
+ serv_puts("MSGS " . $mode . "|" . $count);
+ $response = serv_gets();
+
+ if (substr($response, 0, 1) != "1") {
+ return array(0, substr($response, 4), NULL);
+ }
+
+ $msgs = array();
+ $num_msgs = 0;
+
+ while (strcmp($buf = serv_gets(), "000")) {
+ $num_msgs = array_push($msgs, $buf);
+ }
+
+ return array($num_msgs, substr($response, 4), $msgs);
+}
+
+
+// Load a message from the server.
+function ctdl_fetch_message($msgnum) {
+ global $clientsocket;
+
+ serv_puts("MSG4 " . $msgnum);
+ $response = serv_gets();
+
+ if (substr($response, 0, 1) != "1") {
+ return array(FALSE, substr($response, 4), NULL);
+ }
+
+ $fields = array();
+ while (strcmp($buf = serv_gets(), "000")) {
+ if (substr($buf, 0, 4) == "text") {
+ // We're in the text body. New loop here.
+ $fields["text"] = ctdl_msg4_from_server();
+ return array(TRUE, substr($response, 4), $fields);
+ }
+ else {
+ $fields[substr($buf, 0, 4)] = substr($buf, 5);
+ }
+ }
+
+ // Message terminated prematurely (no text body)
+ return array(FALSE, substr($response, 4), $fields);
+}
+
+// Support function for ctdl_fetch_message(). This handles the text body
+// portion of the message, converting various formats to HTML as
+// appropriate.
+function ctdl_msg4_from_server() {
+
+ $txt = "";
+ $msgformat = "text/plain";
+ $in_body = FALSE;
+
+ $previous_line = "";
+ while (strcmp($buf = serv_gets(), "000")) {
+ if ($in_body == FALSE) {
+ if (strlen($buf) == 0) {
+ $in_body = TRUE;
+ }
+ else {
+ if (!strncasecmp($buf, "content-type: ", 14)) {
+ $msgformat = substr($buf, 14);
+ }
+ }
+ }
+ else {
+ if (!strcasecmp($msgformat, "text/html")) {
+ $txt .= $buf;
+ }
+ else if (!strcasecmp($msgformat, "text/plain")) {
+ $txt .= "<TT>" . htmlspecialchars($buf) . "</TT><BR>\n" ;
+ }
+ else if (!strcasecmp($msgformat, "text/x-citadel-variformat")) {
+ if (substr($previous_line, 0, 1) == " ") {
+ $txt .= "<BR>\n" ;
+ }
+ $txt .= htmlspecialchars($buf);
+ }
+ else {
+ $txt .= htmlspecialchars($buf);
+ }
+ $previous_line = $buf;
+ }
+ }
+
+ return($txt);
+}
+
?>