* $Id$
*/
+#include <ctype.h>
#include <stdlib.h>
-#ifdef HAVE_UNISTD_H
#include <unistd.h>
-#endif
#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 <sys/stat.h>
+#include <limits.h>
+#include <netinet/in.h>
+#include <netdb.h>
#include <string.h>
+#include <pwd.h>
#include <errno.h>
-#include <sys/stat.h>
#include <stdarg.h>
+#include <pthread.h>
+#include <signal.h>
#include "webcit.h"
-#include "child.h"
-#include "mime_parser.h"
-int fake_frames = 0;
-int wc_session;
-char wc_username[256];
-char wc_password[256];
-char wc_roomname[256];
+
int TransactionCount = 0;
-int connected = 0;
-int logged_in = 0;
-int axlevel;
char *ExpressMessages = NULL;
-int noframes = 0;
-int new_mail = 0;
-int need_vali = 0;
-struct webcontent *wlist = NULL;
-struct webcontent *wlast = NULL;
+/* This variable is set to 1 if the room banner and menubar have been
+ * displayed, and we need to close the <TABLE> tags.
+ */
+int fake_frames = 0;
struct urlcontent *urlstrings = NULL;
static const char *defaulthost = DEFAULT_HOST;
static const char *defaultport = DEFAULT_PORT;
-int upload_length = 0;
-char *upload;
void unescape_input(char *buf)
void wprintf(const char *format,...)
{
va_list arg_ptr;
- struct webcontent *wptr;
-
- wptr = (struct webcontent *) malloc(sizeof(struct webcontent));
- wptr->next = NULL;
- if (wlist == NULL) {
- wlist = wptr;
- wlast = wptr;
- } else {
- wlast->next = wptr;
- wlast = wptr;
- }
+ char wbuf[1024];
va_start(arg_ptr, format);
- vsprintf(wptr->w_data, format, arg_ptr);
+ vsprintf(wbuf, format, arg_ptr);
va_end(arg_ptr);
-}
-
-int wContentLength(void)
-{
- struct webcontent *wptr;
- int len = 0;
- for (wptr = wlist; wptr != NULL; wptr = wptr->next) {
- len = len + strlen(wptr->w_data);
- }
-
- return (len);
+ write(WC->http_sock, wbuf, strlen(wbuf));
}
+
/*
- * wDumpContent() takes all the stuff that's been queued up using
- * the wprintf() and escputs() functions, and sends it out to the browser.
- * By queuing instead of transmitting as it's generated, we're able to
- * calculate a Content-length: header.
+ * wDumpContent() wraps up an HTTP session, closes tags, etc.
*
* print_standard_html_footer should be set to 0 to transmit only, 1 to
- * append the main menu (if in noframes mode) and closing tags, or 2 to
+ * append the main menu and closing tags, or 2 to
* append the closing tags only.
*/
void wDumpContent(int print_standard_html_footer)
{
- struct webcontent *wptr;
-
if (fake_frames) {
- wprintf("</TD></TR></TABLE></TABLE>\n");
+ wprintf("<CENTER><FONT SIZE=-1>"
+ "<TABLE border=0 width=100%><TR>"
+ "<TD><A HREF=\"/ungoto\">"
+ "<IMG SRC=\"/static/back.gif\" BORDER=0>"
+ "Ungoto</A></TD>");
+ wprintf("<TD><A HREF=\"#TheTop\">"
+ "<IMG SRC=\"/static/up.gif\" BORDER=0>"
+ "Top of page</A></TD>");
+ wprintf("<TD><A HREF=\"/display_enter\">"
+ "<IMG SRC=\"/static/enter.gif\" BORDER=0>"
+ "Enter a message</A></TD>");
+ wprintf("<TD><A HREF=\"/gotonext\">"
+ "Goto next room"
+ "<IMG SRC=\"/static/forward.gif\" BORDER=0></A></TD>"
+ "</TR></TABLE>"
+ "</FONT>\n"
+ "</TD></TR></TABLE></TABLE>\n");
fake_frames = 0;
}
if (print_standard_html_footer) {
- if ((noframes) && (print_standard_html_footer != 2)) {
+ if (print_standard_html_footer != 2) {
wprintf("<BR>");
- /* embed_main_menu(); */ /* not any more */
}
wprintf("</BODY></HTML>\n");
}
- printf("Content-type: text/html\n");
- printf("Content-length: %d\n", wContentLength());
- printf("\n");
-
- while (wlist != NULL) {
- fwrite(wlist->w_data, strlen(wlist->w_data), 1, stdout);
- wptr = wlist->next;
- free(wlist);
- wlist = wptr;
- }
- wlast = NULL;
+
+
}
wprintf(">");
else if (strbuf[a] == '&')
wprintf("&");
- else if (strbuf[a] == 34)
+ else if (strbuf[a] == '\"')
wprintf(""");
+ else if (strbuf[a] == '\'')
+ wprintf("'");
else if (strbuf[a] == LB)
wprintf("<");
else if (strbuf[a] == RB)
-/*
- * Get a line of text from the webserver (which originally came from the
- * user's browser), checking for sanity etc.
- */
-char *getz(char *buf)
-{
- int e = 0;
-
- bzero(buf, 256);
-
- /* If fgets() fails, it's because the webserver crashed, so kill off
- * the session too.
- */
- if (fgets(buf, 256, stdin) == NULL) {
- e = errno;
- fprintf(stderr, "webcit: exit code %d (%s)\n",
- e, strerror(e));
- fflush(stderr);
- exit(e);
-
- /* Otherwise, strip out nonprintables and resume our happy day.
- */
- } else {
- while ((strlen(buf) > 0) && (!isprint(buf[strlen(buf) - 1])))
- buf[strlen(buf) - 1] = 0;
- return buf;
- }
-}
-
-
-
/*
* Output all that important stuff that the browser will want to see
*
- * If print_standard_html_head is nonzero, we also get some standard HTML
- * headers. If it's set to 2, the session is considered to be closing.
+ * print_standard_html_head values:
+ * 0 = Nothing. Do not display any leading HTTP or HTML.
+ * 1 = HTTP headers plus the "fake frames" found in most windows.
+ * 2 = HTTP headers required to terminate the session (unset cookies)
+ * 3 = HTTP headers only.
*/
void output_headers(int print_standard_html_head)
{
static char *unset = "; expires=28-May-1971 18:10:00 GMT";
char cookie[256];
- printf("Server: %s\n", SERVER);
- printf("Connection: close\n");
+ wprintf("Content-type: text/html\n");
+ wprintf("Server: %s\n", SERVER);
+ wprintf("Connection: close\n");
if (print_standard_html_head > 0) {
- printf("Pragma: no-cache\n");
- printf("Cache-Control: no-store\n");
+ wprintf("Pragma: no-cache\n");
+ wprintf("Cache-Control: no-store\n");
}
- stuff_to_cookie(cookie, wc_session, wc_username, wc_password,
- wc_roomname, noframes);
+ stuff_to_cookie(cookie, WC->wc_session, WC->wc_username,
+ WC->wc_password, WC->wc_roomname);
if (print_standard_html_head == 2) {
- printf("X-WebCit-Session: close\n");
- printf("Set-cookie: webcit=%s\n", unset);
+ wprintf("X-WebCit-Session: close\n");
+ wprintf("Set-cookie: webcit=%s\n", unset);
} else {
- printf("Set-cookie: webcit=%s\n", cookie);
+ wprintf("Set-cookie: webcit=%s\n", cookie);
}
+ wprintf("\n");
+
if (print_standard_html_head > 0) {
wprintf("<HTML><HEAD><TITLE>");
escputs(serv_info.serv_humannode);
- wprintf("</TITLE></HEAD>");
+ wprintf("</TITLE>\n"
+ "<META HTTP-EQUIV=\"Pragma\" CONTENT=\"no-cache\">\n"
+ "</HEAD>\n");
if (ExpressMessages != NULL) {
wprintf("<SCRIPT language=\"javascript\">\n");
wprintf("function ExpressMessage() {\n");
wprintf("\")\n");
wprintf(" }\n </SCRIPT>\n");
}
+
+
+
+ /* JavaScript key-based navigation would go here if it
+ * were finished
+ */
+
wprintf("<BODY ");
if (ExpressMessages != NULL) {
wprintf("onload=\"ExpressMessage()\" ");
wprintf("BACKGROUND=\"/image&name=background\" TEXT=\"#000000\" LINK=\"#004400\">\n");
- if ((print_standard_html_head == 1) && (noframes == 1)) {
- wprintf("<TABLE border=0 width=100%>");
- wprintf("<TR VALIGN=TOP><TD>");
+ if (print_standard_html_head == 1) {
+ wprintf("<A NAME=\"TheTop\"></A>"
+ "<TABLE border=0 width=100%>"
+ "<TR VALIGN=TOP><TD>");
display_menubar(0);
wprintf("</TD></TR><TR VALIGN=TOP><TD>\n");
-
fake_frames = 1;
}
}
sprintf(buf, "static/%s", what);
fp = fopen(buf, "rb");
if (fp == NULL) {
- printf("HTTP/1.0 404 %s\n", strerror(errno));
- output_headers(0);
- printf("Content-Type: text/plain\n");
- sprintf(buf, "%s: %s\n", what, strerror(errno));
- printf("Content-length: %d\n", strlen(buf));
- printf("\n");
- fwrite(buf, strlen(buf), 1, stdout);
+ wprintf("HTTP/1.0 404 %s\n", strerror(errno));
+ wprintf("Content-Type: text/plain\n");
+ wprintf("\n");
+ wprintf("Cannot open %s: %s\n", what, strerror(errno));
} else {
- printf("HTTP/1.0 200 OK\n");
+ wprintf("HTTP/1.0 200 OK\n");
output_headers(0);
if (!strncasecmp(&what[strlen(what) - 4], ".gif", 4))
- printf("Content-type: image/gif\n");
+ wprintf("Content-type: image/gif\n");
+ else if (!strncasecmp(&what[strlen(what) - 4], ".txt", 4))
+ wprintf("Content-type: text/plain\n");
else if (!strncasecmp(&what[strlen(what) - 4], ".jpg", 4))
- printf("Content-type: image/jpeg\n");
+ wprintf("Content-type: image/jpeg\n");
else if (!strncasecmp(&what[strlen(what) - 5], ".html", 5))
- printf("Content-type: text/html\n");
+ wprintf("Content-type: text/html\n");
else
- printf("Content-type: application/octet-stream\n");
+ wprintf("Content-type: application/octet-stream\n");
fstat(fileno(fp), &statbuf);
bytes = statbuf.st_size;
- printf("Content-length: %ld\n", (long) bytes);
+ wprintf("Content-length: %ld\n", (long) bytes);
printf("\n");
while (bytes--) {
- putc(getc(fp), stdout);
+ wprintf("%c", getc(fp) );
}
- fflush(stdout);
fclose(fp);
}
}
serv_gets(buf);
if (buf[0] == '2') {
bytes = extract_long(&buf[4], 0);
- printf("HTTP/1.0 200 OK\n");
+ wprintf("HTTP/1.0 200 OK\n");
output_headers(0);
- printf("Content-type: image/gif\n");
- printf("Content-length: %ld\n", (long) bytes);
- printf("\n");
+ wprintf("Content-type: image/gif\n");
+ wprintf("Content-length: %ld\n", (long) bytes);
+ wprintf("\n");
while (bytes > (off_t) 0) {
thisblock = (off_t) sizeof(xferbuf);
if (buf[0] == '6')
thisblock = extract_long(&buf[4], 0);
serv_read(xferbuf, (int) thisblock);
- fwrite(xferbuf, thisblock, 1, stdout);
+ write(WC->http_sock, xferbuf, thisblock);
bytes = bytes - thisblock;
accomplished = accomplished + thisblock;
}
serv_puts("CLOS");
serv_gets(buf);
} else {
- printf("HTTP/1.0 404 %s\n", strerror(errno));
+ wprintf("HTTP/1.0 404 %s\n", strerror(errno));
output_headers(0);
- printf("Content-Type: text/plain\n");
- sprintf(buf, "Error retrieving image\n");
- printf("Content-length: %d\n", strlen(buf));
- printf("\n");
- fwrite(buf, strlen(buf), 1, stdout);
+ wprintf("Content-Type: text/plain\n");
+ wprintf("\n");
+ wprintf("Error retrieving image\n");
}
}
*/
void convenience_page(char *titlebarcolor, char *titlebarmsg, char *messagetext)
{
- printf("HTTP/1.0 200 OK\n");
+ wprintf("HTTP/1.0 200 OK\n");
output_headers(1);
wprintf("<TABLE WIDTH=100% BORDER=0 BGCOLOR=%s><TR><TD>", titlebarcolor);
wprintf("<FONT SIZE=+1 COLOR=\"FFFFFF\"");
wprintf("</FONT></TD></TR></TABLE><BR>\n");
escputs(messagetext);
- if (noframes) {
- wprintf("<HR>\n");
- embed_main_menu();
- }
+ wprintf("<HR>\n");
+ embed_main_menu();
wDumpContent(1);
}
fprintf(stderr, " length = %d\n", length);
if (strlen(name) > 0) {
- upload = malloc(length);
- if (upload != NULL) {
- upload_length = length;
- memcpy(upload, content, length);
+ WC->upload = malloc(length);
+ if (WC->upload != NULL) {
+ WC->upload_length = length;
+ memcpy(WC->upload, content, length);
}
}
}
-void session_loop(char *browser_host)
+/*
+ * Entry point for WebCit transaction
+ */
+void session_loop(struct httprequest *req)
{
char cmd[256];
char action[256];
int ContentLength = 0;
char ContentType[512];
char *content;
+ struct httprequest *hptr;
+ char browser_host[256];
+ char user_agent[256];
/* We stuff these with the values coming from the client cookies,
* so we can use them to reconnect a timed out session if we have to.
strcpy(c_password, "");
strcpy(c_roomname, "");
- upload_length = 0;
- upload = NULL;
+ WC->upload_length = 0;
+ WC->upload = NULL;
+
+ hptr = req;
+ if (hptr == NULL) return;
- if (getz(cmd) == NULL)
- return;
+ strcpy(cmd, hptr->line);
+ hptr = hptr->next;
extract_action(action, cmd);
- do {
- if (getz(buf) == NULL)
- return;
+ while (hptr != NULL) {
+ strcpy(buf, hptr->line);
+ hptr = hptr->next;
if (!strncasecmp(buf, "Cookie: webcit=", 15)) {
strcpy(cookie, &buf[15]);
cookie_to_stuff(cookie, NULL,
- c_username, c_password, c_roomname,
- &noframes);
+ c_username, c_password, c_roomname);
}
- if (!strncasecmp(buf, "Content-length: ", 16)) {
+ else if (!strncasecmp(buf, "Content-length: ", 16)) {
ContentLength = atoi(&buf[16]);
}
- if (!strncasecmp(buf, "Content-type: ", 14)) {
+ else if (!strncasecmp(buf, "Content-type: ", 14)) {
strcpy(ContentType, &buf[14]);
}
- } while (strlen(buf) > 0);
+ else if (!strncasecmp(buf, "User-agent: ", 12)) {
+ strcpy(user_agent, &buf[12]);
+ }
+ }
++TransactionCount;
if (ContentLength > 0) {
content = malloc(ContentLength + 1);
- fread(content, ContentLength, 1, stdin);
+ read(WC->http_sock, content, ContentLength);
content[ContentLength] = 0;
* connection now. Preference is given to the host and port specified
* by browser cookies, if cookies have been supplied.
*/
- if (!connected) {
+ if (!WC->connected) {
if (strlen(bstr("host")) > 0)
strcpy(c_host, bstr("host"));
if (strlen(bstr("port")) > 0)
strcpy(c_port, bstr("port"));
- serv_sock = connectsock(c_host, c_port, "tcp");
- connected = 1;
+ WC->serv_sock = connectsock(c_host, c_port, "tcp");
+ if (WC->serv_sock < 0) {
+ do_logout();
+ }
+
+ WC->connected = 1;
serv_gets(buf); /* get the server welcome message */
- get_serv_info(browser_host);
+ locate_host(browser_host, WC->http_sock);
+ get_serv_info(browser_host, user_agent);
}
check_for_express_messages();
* If we're not logged in, but we have username and password cookies
* supplied by the browser, try using them to log in.
*/
- if ((!logged_in) && (strlen(c_username) > 0) && (strlen(c_password) > 0)) {
+ if ((!WC->logged_in) && (strlen(c_username) > 0) && (strlen(c_password) > 0)) {
serv_printf("USER %s", c_username);
serv_gets(buf);
if (buf[0] == '3') {
* If we don't have a current room, but a cookie specifying the
* current room is supplied, make an effort to go there.
*/
- if ((strlen(wc_roomname) == 0) && (strlen(c_roomname) > 0)) {
+ if ((strlen(WC->wc_roomname) == 0) && (strlen(c_roomname) > 0)) {
serv_printf("GOTO %s", c_roomname);
serv_gets(buf);
if (buf[0] == '2') {
- strcpy(wc_roomname, c_roomname);
+ strcpy(WC->wc_roomname, c_roomname);
}
}
if (!strcasecmp(action, "static")) {
output_static(buf);
} else if (!strcasecmp(action, "image")) {
output_image();
- } else if ((!logged_in) && (!strcasecmp(action, "login"))) {
+ } else if ((!WC->logged_in) && (!strcasecmp(action, "login"))) {
do_login();
- } else if (!logged_in) {
+ } else if (!WC->logged_in) {
display_login(NULL);
}
/* Various commands... */
} else if (!strcasecmp(action, "editinfo")) {
save_edit("Room info", "EINF 1", 1);
} else if (!strcasecmp(action, "display_editbio")) {
- sprintf(buf, "RBIO %s", wc_username);
+ sprintf(buf, "RBIO %s", WC->wc_username);
display_edit("Your bio", "NOOP", buf, "editbio");
} else if (!strcasecmp(action, "editbio")) {
save_edit("Your bio", "EBIO", 0);
} else if (!strcasecmp(action, "share")) {
share();
} else if (!strcasecmp(action, "terminate_session")) {
+ slrp_highest();
terminate_session();
} else if (!strcasecmp(action, "edit_me")) {
edit_me();
do_generic();
} else if (!strcasecmp(action, "display_menubar")) {
display_menubar(1);
- }
- /* When all else fails... */
- else {
- printf("HTTP/1.0 200 OK\n");
+ } else if (!strcasecmp(action, "diagnostics")) {
+ wprintf("HTTP/1.0 200 OK\n");
output_headers(1);
wprintf("TransactionCount is %d<BR>\n", TransactionCount);
- wprintf("You're in session %d<HR>\n", wc_session);
+ wprintf("You're in session %d<HR>\n", WC->wc_session);
wprintf("Command: <BR><PRE>\n");
escputs(cmd);
wprintf("</PRE><HR>\n");
wprintf("</PRE><HR>\n");
wDumpContent(1);
}
+ /* When all else fais, display the main menu. */
+ else {
+ display_main_menu();
+ }
fflush(stdout);
if (content != NULL) {
content = NULL;
}
free_urls();
- if (upload_length > 0) {
- free(upload);
- upload_length = 0;
- }
-}
-
-int main(int argc, char *argv[])
-{
-
- char browser[256];
- int bd;
-
- if (argc != 6) {
- fprintf(stderr,
- "webcit: usage error (argc must be 6, not %d)\n",
- argc);
- return 1;
- }
-
- wc_session = atoi(argv[1]);
- defaulthost = argv[2];
- defaultport = argv[3];
-
- strcpy(wc_username, "");
- strcpy(wc_password, "");
- strcpy(wc_roomname, "");
-
- /* Clear out serv_info and temporarily set the value of serv_humannode
- * to a default value, because it'll be used in HTML page titles
- */
- memset(&serv_info, 0, sizeof(serv_info));
- strcpy(serv_info.serv_humannode, "WebCit");
-
- strcpy(browser, argv[5]);
- bd = browser_braindamage_check(browser);
- if (bd == B_NO)
- noframes = 1;
- else
- noframes = 0;
-
- while (1) {
- session_loop(argv[4]);
+ if (WC->upload_length > 0) {
+ free(WC->upload);
+ WC->upload_length = 0;
}
}
projects / citadel.git / blobdiff