/*
- * auth.c
+ * $Id$
*
- * This file contains code which relates to authentication of users to Citadel.
+ * Handles authentication of users to a Citadel server.
*
*/
+
+#include <ctype.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
-#include <ctype.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <limits.h>
+#include <netinet/in.h>
+#include <netdb.h>
#include <string.h>
+#include <pwd.h>
#include <errno.h>
+#include <stdarg.h>
+#include <pthread.h>
+#include <signal.h>
#include "webcit.h"
+char *axdefs[] =
+{
+ "Deleted",
+ "New User",
+ "Problem User",
+ "Local User",
+ "Network User",
+ "Preferred User",
+ "Aide"
+};
+
+/*
+ * Display the login screen
+ */
+void display_login(char *mesg)
+{
+ char buf[SIZ];
+
+ output_headers(1, 1, 2, 0, 0, 0, 0);
+ //wprintf("<div id=\"content\">\n");
+ wprintf("<div style=\"position:absolute; top:20px; left:20px; right:20px\">\n");
+
+ if (mesg != NULL) if (strlen(mesg) > 0) {
+ stresc(buf, mesg, 0, 0);
+ svprintf("mesg", WCS_STRING, "%s", buf);
+ }
+
+ svprintf("hello", WCS_SERVCMD, "MESG hello");
+ svprintf("BOXTITLE", WCS_STRING, "%s - powered by Citadel",
+ serv_info.serv_humannode);
+
+ do_template("login");
+
+ wDumpContent(2);
+}
+
+
+
/*
- * This function needs to get called whenever a PASS or NEWU succeeds
+ * This function needs to get called whenever the session changes from
+ * not-logged-in to logged-in, either by an explicit login by the user or
+ * by a timed-out session automatically re-establishing with a little help
+ * from the browser cookie. Either way, we need to load access controls and
+ * preferences from the server.
*/
-void become_logged_in(char *user, char *pass) {
+void become_logged_in(char *user, char *pass, char *serv_response)
+{
+ char buf[SIZ];
+
+ WC->logged_in = 1;
+ extract(WC->wc_username, &serv_response[4], 0);
+ strcpy(WC->wc_password, pass);
+ WC->axlevel = extract_int(&serv_response[4], 1);
+ if (WC->axlevel >= 6) {
+ WC->is_aide = 1;
+ }
+
+ load_preferences();
- logged_in = 1;
- strcpy(wc_username, user);
- strcpy(wc_password, pass);
-
+ serv_puts("CHEK");
+ serv_gets(buf);
+ if (buf[0] == '2') {
+ WC->new_mail = extract_int(&buf[4], 0);
+ WC->need_regi = extract_int(&buf[4], 1);
+ WC->need_vali = extract_int(&buf[4], 2);
+ extract(WC->cs_inet_email, &buf[4], 3);
}
+}
-void do_login() {
- char buf[256];
- char actual_username[256];
+void do_login(void)
+{
+ char buf[SIZ];
+ if (!strcasecmp(bstr("action"), "Exit")) {
+ do_logout();
+ return;
+ }
if (!strcasecmp(bstr("action"), "Login")) {
serv_printf("USER %s", bstr("name"));
serv_gets(buf);
- if (buf[0]=='3') {
+ if (buf[0] == '3') {
serv_printf("PASS %s", bstr("pass"));
serv_gets(buf);
- if (buf[0]=='2') {
- extract(actual_username, &buf[4], 0);
- become_logged_in(actual_username, bstr("pass"));
- }
+ if (buf[0] == '2') {
+ become_logged_in(bstr("name"),
+ bstr("pass"), buf);
+ } else {
+ display_login(&buf[4]);
+ return;
}
+ } else {
+ display_login(&buf[4]);
+ return;
+ }
+ }
+ if (!strcasecmp(bstr("action"), "New User")) {
+ if (strlen(bstr("pass")) == 0) {
+ display_login("Blank passwords are not allowed.");
+ return;
+ }
+ serv_printf("NEWU %s", bstr("name"));
+ serv_gets(buf);
+ if (buf[0] == '2') {
+ become_logged_in(bstr("name"), bstr("pass"), buf);
+ serv_printf("SETP %s", bstr("pass"));
+ serv_gets(buf);
+ } else {
+ display_login(&buf[4]);
+ return;
}
+ }
+ if (WC->logged_in) {
+ if (WC->need_regi) {
+ display_reg(1);
+ } else {
+ do_welcome();
+ }
+ } else {
+ display_login("Your password was not accepted.");
+ }
+
+}
+
+void do_welcome(void)
+{
+ char startpage[SIZ];
+
+ get_preference("startpage", startpage);
+ if (strlen(startpage)==0) {
+ strcpy(startpage, "/dotskip&room=_BASEROOM_");
+ set_preference("startpage", startpage);
+ }
+
+ http_redirect(startpage);
+}
+
+
+/*
+ * Disconnect from the Citadel server, and end this WebCit session
+ */
+void end_webcit_session(void) {
+ serv_puts("QUIT");
+ WC->killthis = 1;
+ /* close() of citadel socket will be done by do_housekeeping() */
+}
- if (logged_in) {
- output_static("frameset.html");
+
+void do_logout(void)
+{
+ char buf[SIZ];
+
+ strcpy(WC->wc_username, "");
+ strcpy(WC->wc_password, "");
+ strcpy(WC->wc_roomname, "");
+
+ /* Calling output_headers() this way causes the cookies to be un-set */
+ output_headers(1, 1, 0, 1, 0, 0, 0);
+
+ wprintf("<center>");
+ serv_puts("MESG goodbye");
+ serv_gets(buf);
+
+ if (WC->serv_sock >= 0) {
+ if (buf[0] == '1') {
+ fmout(NULL, "CENTER");
+ } else {
+ wprintf("Goodbye\n");
}
+ }
else {
- printf("HTTP/1.0 200 OK\n");
- output_headers();
- wprintf("<HTML><HEAD><TITLE>Nope</TITLE></HEAD><BODY>\n");
- wprintf("Your password was not accepted.\n");
- wprintf("<HR><A HREF=\"/\">Try again</A>\n");
- wprintf("</BODY></HTML>\n");
- wDumpContent();
+ wprintf("This program was unable to connect or stay "
+ "connected to the Citadel server. Please report "
+ "this problem to your system administrator."
+ );
+ }
+
+ wprintf("<hr /><a href=\"/\">Log in again</A> "
+ "<a href=\"javascript:window.close();\">Close window</A>"
+ "</center>\n");
+ wDumpContent(2);
+ end_webcit_session();
+}
+
+
+/*
+ * validate new users
+ */
+void validate(void)
+{
+ char cmd[SIZ];
+ char user[SIZ];
+ char buf[SIZ];
+ int a;
+
+ output_headers(1, 1, 2, 0, 0, 0, 0);
+ wprintf("<div id=\"banner\">\n"
+ "<TABLE WIDTH=100%% BORDER=0 BGCOLOR=\"#444455\"><TR><TD>"
+ "<SPAN CLASS=\"titlebar\">Validate new users</SPAN>"
+ "</TD></TR></TABLE>\n"
+ "</div>\n<div id=\"content\">\n"
+ );
+
+ strcpy(buf, bstr("user"));
+ if (strlen(buf) > 0)
+ if (strlen(bstr("axlevel")) > 0) {
+ serv_printf("VALI %s|%s", buf, bstr("axlevel"));
+ serv_gets(buf);
+ if (buf[0] != '2') {
+ wprintf("<b>%s</b><br />\n", &buf[4]);
+ }
}
+ serv_puts("GNUR");
+ serv_gets(buf);
+
+ if (buf[0] != '3') {
+ wprintf("<b>%s</b><br />\n", &buf[4]);
+ wDumpContent(1);
+ return;
+ }
+
+ wprintf("<div id=\"fix_scrollbar_bug\">"
+ "<table border=0 width=100%% bgcolor=\"#ffffff\"><tr><td>\n");
+ wprintf("<center>");
+
+ strcpy(user, &buf[4]);
+ serv_printf("GREG %s", user);
+ serv_gets(cmd);
+ if (cmd[0] == '1') {
+ a = 0;
+ do {
+ serv_gets(buf);
+ ++a;
+ if (a == 1)
+ wprintf("User #%s<br /><H1>%s</H1>",
+ buf, &cmd[4]);
+ if (a == 2)
+ wprintf("PW: %s<br />\n", buf);
+ if (a == 3)
+ wprintf("%s<br />\n", buf);
+ if (a == 4)
+ wprintf("%s<br />\n", buf);
+ if (a == 5)
+ wprintf("%s, ", buf);
+ if (a == 6)
+ wprintf("%s ", buf);
+ if (a == 7)
+ wprintf("%s<br />\n", buf);
+ if (a == 8)
+ wprintf("%s<br />\n", buf);
+ if (a == 9)
+ wprintf("Current access level: %d (%s)\n",
+ atoi(buf), axdefs[atoi(buf)]);
+ } while (strcmp(buf, "000"));
+ } else {
+ wprintf("<H1>%s</H1>%s<br />\n", user, &cmd[4]);
+ }
+
+ wprintf("<hr />Select access level for this user:<br />\n");
+ for (a = 0; a <= 6; ++a) {
+ wprintf("<A HREF=\"/validate&user=");
+ urlescputs(user);
+ wprintf("&axlevel=%d\">%s</A> \n",
+ a, axdefs[a]);
+ }
+ wprintf("<br />\n");
+
+ wprintf("</CENTER>\n");
+ wprintf("</td></tr></table></div>\n");
+ wDumpContent(1);
+}
+
+
+/*
+ * Display form for registration.
+ * (Set during_login to 1 if this registration is being performed during
+ * new user login and will require chaining to the proper screen.)
+ */
+void display_reg(int during_login)
+{
+ long vcard_msgnum;
+
+ if (goto_config_room() != 0) {
+ if (during_login) do_welcome();
+ else display_main_menu();
+ return;
+ }
+
+ vcard_msgnum = locate_user_vcard(WC->wc_username, -1);
+ if (vcard_msgnum < 0L) {
+ if (during_login) do_welcome();
+ else display_main_menu();
+ return;
+ }
+
+ if (during_login) {
+ do_edit_vcard(vcard_msgnum, "1", "/do_welcome");
+ }
+ else {
+ do_edit_vcard(vcard_msgnum, "1", "/display_main_menu");
}
-void do_welcome() {
- printf("HTTP/1.0 200 OK\n");
- output_headers();
- wprintf("<HTML><BODY>\n");
- wprintf("<CENTER><H1>");
- escputs(wc_username);
- wprintf("</H1>\n");
- /* other stuff here */
- wprintf("</BODY></HTML>\n");
- wDumpContent();
+}
+
+
+
+
+/*
+ * display form for changing your password
+ */
+void display_changepw(void)
+{
+ char buf[SIZ];
+
+ output_headers(1, 1, 2, 0, 0, 0, 0);
+ wprintf("<div id=\"banner\">\n"
+ "<TABLE WIDTH=100%% BORDER=0 BGCOLOR=\"#444455\"><TR><TD>"
+ "<SPAN CLASS=\"titlebar\">Change your password</SPAN>"
+ "</TD></TR></TABLE>\n"
+ "</div>\n<div id=\"content\">\n"
+ );
+
+ if (strlen(WC->ImportantMessage) > 0) {
+ do_template("beginbox_nt");
+ wprintf("<SPAN CLASS=\"errormsg\">"
+ "%s</SPAN><br />\n", WC->ImportantMessage);
+ do_template("endbox");
+ strcpy(WC->ImportantMessage, "");
+ }
+
+ wprintf("<div id=\"fix_scrollbar_bug\">"
+ "<table border=0 width=100%% bgcolor=\"#ffffff\"><tr><td>\n");
+
+ wprintf("<CENTER><br />");
+ serv_puts("MESG changepw");
+ serv_gets(buf);
+ if (buf[0] == '1') {
+ fmout(NULL, "CENTER");
+ }
+
+ wprintf("<form name=\"changepwform\" action=\"changepw\" method=\"post\">\n");
+ wprintf("<CENTER>"
+ "<table border=\"0\" cellspacing=\"5\" cellpadding=\"5\" "
+ "BGCOLOR=\"#EEEEEE\">"
+ "<TR><TD>Enter new password:</TD>\n");
+ wprintf("<TD><INPUT TYPE=\"password\" NAME=\"newpass1\" VALUE=\"\" MAXLENGTH=\"20\"></TD></TR>\n");
+ wprintf("<TR><TD>Enter it again to confirm:</TD>\n");
+ wprintf("<TD><INPUT TYPE=\"password\" NAME=\"newpass2\" VALUE=\"\" MAXLENGTH=\"20\"></TD></TR>\n");
+
+ wprintf("</TABLE><br />\n");
+ wprintf("<INPUT type=\"submit\" name=\"action\" value=\"Change\">"
+ " "
+ "<INPUT type=\"submit\" name=\"action\" value=\"Cancel\">\n");
+ wprintf("</form></center>\n");
+ wprintf("</td></tr></table></div>\n");
+ wDumpContent(1);
+}
+
+/*
+ * change password
+ */
+void changepw(void)
+{
+ char buf[SIZ];
+ char newpass1[32], newpass2[32];
+
+ if (strcmp(bstr("action"), "Change")) {
+ strcpy(WC->ImportantMessage,
+ "Cancelled. Password was not changed.");
+ display_main_menu();
+ return;
+ }
+
+ strcpy(newpass1, bstr("newpass1"));
+ strcpy(newpass2, bstr("newpass2"));
+
+ if (strcasecmp(newpass1, newpass2)) {
+ strcpy(WC->ImportantMessage,
+ "They don't match. Password was not changed.");
+ display_changepw();
+ return;
+ }
+
+ if (strlen(newpass1) == 0) {
+ strcpy(WC->ImportantMessage,
+ "Blank passwords are not allowed.");
+ display_changepw();
+ return;
+ }
+
+ serv_printf("SETP %s", newpass1);
+ serv_gets(buf);
+ sprintf(WC->ImportantMessage, "%s", &buf[4]);
+ if (buf[0] == '2') {
+ safestrncpy(WC->wc_password, buf, sizeof WC->wc_password);
+ display_main_menu();
+ }
+ else {
+ display_changepw();
}
+}