]> code.citadel.org Git - citadel.git/blobdiff - webcit/webcit.c
* Finished gzip compression of dynamic pages (when browser supports it)
[citadel.git] / webcit / webcit.c
index e7d0047ff19f4be45f562cadd7cf73534d16cb4f..d4d9cacc41f01bc46355aebc550ebc4298015749 100644 (file)
@@ -29,6 +29,8 @@
 #include <pthread.h>
 #include <signal.h>
 #include "webcit.h"
+#include "webserver.h"
+#include "mime_parser.h"
 
 /*
  * String to unset the cookie.
@@ -64,7 +66,7 @@ void unescape_input(char *buf)
 void addurls(char *url)
 {
        char *up, *ptr;
-       char buf[256];
+       char buf[SIZ];
        int a, b;
        struct urlcontent *u;
 
@@ -72,7 +74,7 @@ void addurls(char *url)
        while (strlen(up) > 0) {
 
                /* locate the = sign */
-               strncpy(buf, up, 255);
+               safestrncpy(buf, up, sizeof buf);
                b = (-1);
                for (a = 255; a >= 0; --a)
                        if (buf[a] == '=')
@@ -150,6 +152,31 @@ char *bstr(char *key)
 }
 
 
+#ifdef WITH_ZLIB
+
+ssize_t http_write(int fd, const void *buf, size_t count) {
+
+       if (WC->gzfd) {
+               return gzwrite(WC->gzfd, buf, count);
+       }
+       else {
+               return write(fd, buf, count);
+       }
+
+
+}
+
+#else
+
+ssize_t http_write(int fd, const void *buf, size_t count) {
+       return write(fd, buf, count);
+}
+
+#endif
+
+
+
+
 void wprintf(const char *format,...)
 {
        va_list arg_ptr;
@@ -159,7 +186,7 @@ void wprintf(const char *format,...)
        vsprintf(wbuf, format, arg_ptr);
        va_end(arg_ptr);
 
-       write(WC->http_sock, wbuf, strlen(wbuf));
+       http_write(WC->http_sock, wbuf, strlen(wbuf));
 }
 
 
@@ -173,23 +200,7 @@ void wprintf(const char *format,...)
 void wDumpContent(int print_standard_html_footer)
 {
        if (WC->fake_frames) {
-               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");
+               wprintf("</TABLE>\n");
                WC->fake_frames = 0;
        }
 
@@ -204,47 +215,60 @@ void wDumpContent(int print_standard_html_footer)
 }
 
 
-void escputs1(char *strbuf, int nbsp)
+/*
+ * Copy a string, escaping characters which have meaning in HTML.  If
+ * nbsp is nonzero, spaces are converted to non-breaking spaces.
+ */
+void stresc(char *target, char *strbuf, int nbsp)
 {
        int a;
+       strcpy(target, "");
 
        for (a = 0; a < strlen(strbuf); ++a) {
                if (strbuf[a] == '<')
-                       wprintf("&lt;");
+                       strcat(target, "&lt;");
                else if (strbuf[a] == '>')
-                       wprintf("&gt;");
+                       strcat(target, "&gt;");
                else if (strbuf[a] == '&')
-                       wprintf("&amp;");
+                       strcat(target, "&amp;");
                else if (strbuf[a] == '\"')
-                       wprintf("&quot;");
+                       strcat(target, "&quot;");
                else if (strbuf[a] == '\'') 
-                       wprintf("&#39;");
+                       strcat(target, "&#39;");
                else if (strbuf[a] == LB)
-                       wprintf("<");
+                       strcat(target, "<");
                else if (strbuf[a] == RB)
-                       wprintf(">");
+                       strcat(target, ">");
                else if (strbuf[a] == QU)
-                       wprintf("\"");
+                       strcat(target, "\"");
                else if ((strbuf[a] == 32) && (nbsp == 1)) {
-                       wprintf("&nbsp;");
+                       strcat(target, "&nbsp;");
                } else {
-                       wprintf("%c", strbuf[a]);
+                       strncat(target, &strbuf[a], 1);
                }
        }
 }
 
+void escputs1(char *strbuf, int nbsp)
+{
+       char buf[1024];
+       stresc(buf, strbuf, nbsp);
+       wprintf("%s", buf);
+}
+
 void escputs(char *strbuf)
 {
        escputs1(strbuf, 0);
 }
 
-
-
-char *urlesc(char *strbuf)
+/*
+ * Escape a string for feeding out as a URL.
+ * Returns a pointer to a buffer that must be freed by the caller!
+ */
+void urlesc(char *outbuf, char *strbuf)
 {
        int a, b, c;
        char *ec = " #&;`'|*?-~<>^()[]{}$\\";
-       static char outbuf[512];
 
        strcpy(outbuf, "");
 
@@ -260,12 +284,14 @@ char *urlesc(char *strbuf)
                else
                        sprintf(&outbuf[b], "%c", strbuf[a]);
        }
-       return (outbuf);
 }
 
 void urlescputs(char *strbuf)
 {
-       wprintf("%s", urlesc(strbuf));
+       char outbuf[SIZ];
+       
+       urlesc(outbuf, strbuf);
+       wprintf("%s", outbuf);
 }
 
 
@@ -278,29 +304,51 @@ void urlescputs(char *strbuf)
  * 
  * Bits 0 and 1:
  * 0 = Nothing.  Do not display any leading HTTP or HTML.
- * 1 = HTTP headers plus the "fake frames" found in most windows.
+ * 1 = HTTP headers plus the room banner
  * 2 = HTTP headers required to terminate the session (unset cookies)
- * 3 = HTTP and HTML headers, but no 'fake frames'
+ * 3 = HTTP and HTML headers, but no room banner
  *
  * Bit 2: Set to 1 to auto-refresh page every 30 seconds
+ *
+ * Bit 3: suppress check for express messages
  */
 void output_headers(int controlcode)
 {
-       char cookie[256];
+       char cookie[SIZ];
        int print_standard_html_head = 0;
        int refresh30 = 0;
+       int suppress_check = 0;
+       char httpnow[SIZ];
+       static int pageseq = 0;
+#ifdef WITH_ZLIB
+       gzFile temp_gzfd = NULL;
+#endif
 
        print_standard_html_head        =       controlcode & 0x03;
        refresh30                       =       ((controlcode & 0x04) >> 2);
+       suppress_check                  =       ((controlcode & 0x08) >> 3);
 
        wprintf("HTTP/1.0 200 OK\n");
 
+       httpdate(httpnow, time(NULL));
+
+#ifdef WITH_ZLIB
+       if (WC->gzcompressed) {
+               temp_gzfd = gzdopen(WC->http_sock, "wb9");
+       }
+#endif
+
        if (print_standard_html_head > 0) {
                wprintf("Content-type: text/html\n");
                wprintf("Server: %s\n", SERVER);
                wprintf("Connection: close\n");
                wprintf("Pragma: no-cache\n");
                wprintf("Cache-Control: no-store\n");
+#ifdef WITH_ZLIB
+               if (temp_gzfd != NULL) {
+                       wprintf("Content-Encoding: gzip\n");
+               }
+#endif
        }
        stuff_to_cookie(cookie, WC->wc_session, WC->wc_username,
                        WC->wc_password, WC->wc_roomname);
@@ -308,51 +356,57 @@ void output_headers(int controlcode)
                wprintf("Set-cookie: webcit=%s\n", unset);
        } else {
                wprintf("Set-cookie: webcit=%s\n", cookie);
+               if (server_cookie != NULL) {
+                       wprintf("%s\n", server_cookie);
+               }
        }
 
        if (print_standard_html_head > 0) {
                wprintf("\n");
+
+#ifdef WITH_ZLIB
+               if (temp_gzfd != NULL) {
+                       WC->gzfd = temp_gzfd;
+               }
+#endif
+
                wprintf("<HTML><HEAD><TITLE>");
                escputs(serv_info.serv_humannode);
                wprintf("</TITLE>\n"
-                       "<META HTTP-EQUIV=\"Expires\" CONTENT=\"0\">\n"
-                       "<META HTTP-EQUIV=\"Pragma\" CONTENT=\"no-cache\">\n");
+                       "<META HTTP-EQUIV=\"Pragma\" CONTENT=\"no-cache\">\n"
+                       "<META HTTP-EQUIV=\"expired\" CONTENT=\"28-May-1971 18:10:00 GMT\">\n"
+                       "<META NAME=\"MSSmartTagsPreventParsing\" CONTENT=\"TRUE\">\n");
                if (refresh30) wprintf(
                        "<META HTTP-EQUIV=\"refresh\" CONTENT=\"30\">\n");
+               else wprintf(
+                       "<META HTTP-EQUIV=\"refresh\" CONTENT=\"500363689;\">\n");
                wprintf("</HEAD>\n");
-               if (WC->ExpressMessages != NULL) {
-                       wprintf("<SCRIPT language=\"javascript\">\n");
-                       wprintf("function ExpressMessage() {\n");
-                       wprintf(" alert(\"");
-                       escputs(WC->ExpressMessages);
-                       wprintf("\")\n");
-                       wprintf(" }\n </SCRIPT>\n");
-               }
-
 
-
-               /* JavaScript key-based navigation would go here if it
-                * were finished
-                */
-
-               wprintf("<BODY ");
-               if (WC->ExpressMessages != NULL) {
-                       wprintf("onload=\"ExpressMessage()\" ");
-                       free(WC->ExpressMessages);
-                       WC->ExpressMessages = NULL;
+               /* script for checking for pages (not always launched) */
+               wprintf("<SCRIPT LANGUAGE=\"JavaScript\">\n");
+               wprintf("function launch_page_popup() {\n");
+               wprintf("pwin = window.open('/page_popup', 'CitaPage%d', "
+                       "'toolbar=no,location=no,copyhistory=no,status=no,"
+                       "scrollbars=yes,resizable=no,height=250,width=400');\n",
+                       ++pageseq);
+               wprintf("}\n");
+               wprintf("</SCRIPT>\n");
+               /* end script */
+
+               /* (JavaScript keyboard-based navigation would go here) */
+
+               if (!suppress_check) if (WC->HaveExpressMessages) {
+                       svprintf("extrabodyparms", WCS_STRING, "%s", 
+                               "onload=\"launch_page_popup()\" ");
+                       WC->HaveExpressMessages = 0;
                }
-               wprintf("BACKGROUND=\"/image&name=background\" TEXT=\"#000000\" LINK=\"#004400\">\n");
-       
-       
-       if (print_standard_html_head == 1) {
-               wprintf("<A NAME=\"TheTop\"></A>"
-                       "<TABLE border=0 width=100%>"
-                       "<TR VALIGN=TOP><TD VALIGN=LEFT CELLPADDING=0>");
+               do_template("background");
+               clear_local_substs();
 
-               display_menubar(0);
+       if (print_standard_html_head == 1) {
+               wprintf("<A NAME=\"TheTop\"></A>");
 
-               wprintf("</TD><TD VALIGN=TOP>"
-                       "<TABLE border=0 width=100%><TR VALIGN=TOP>"
+               wprintf("<TABLE border=0 width=100%%><TR VALIGN=TOP>"
                        "<TD>\n");
 
                embed_room_banner(NULL);
@@ -365,31 +419,29 @@ void output_headers(int controlcode)
 }
 
 
-
-void ExpressMessageCat(char *buf) {
-       if (WC->ExpressMessages == NULL) {
-               WC->ExpressMessages = malloc(strlen(buf) + 4);
-               strcpy(WC->ExpressMessages, "");
-       } else {
-               WC->ExpressMessages = realloc(WC->ExpressMessages,
-                       (strlen(WC->ExpressMessages) + strlen(buf) + 4));
-       }
-       strcat(WC->ExpressMessages, buf);
-       strcat(WC->ExpressMessages, "\\n");
+/*
+ *
+ */
+void http_redirect(char *whichpage) {
+       wprintf("HTTP/1.0 302 Moved Temporarily\n");
+       wprintf("Location: %s\n", whichpage);
+       wprintf("URI: %s\n", whichpage);
+       wprintf("Content-type: text/html\n\n");
+       wprintf("<html><body>\n");
+       wprintf("you really want to be <A HREF=\"%s\">here</A> now\n",
+               whichpage);
+       wprintf("</body></html>\n");
 }
 
 
+
 void check_for_express_messages()
 {
-       char buf[256];
+       char buf[SIZ];
 
-       serv_puts("PEXP");
+       serv_puts("NOOP");
        serv_gets(buf);
-       if (buf[0] == '1') {
-               while (serv_gets(buf), strcmp(buf, "000")) {
-                       ExpressMessageCat(buf);
-               }
-       }
+       if (buf[3] == '*') WC->HaveExpressMessages = 1;
 }
 
 
@@ -398,10 +450,10 @@ void check_for_express_messages()
 void output_static(char *what)
 {
        char buf[4096];
-       long thisblock;
        FILE *fp;
        struct stat statbuf;
        off_t bytes;
+       char *bigbuffer;
 
        sprintf(buf, "static/%s", what);
        fp = fopen(buf, "rb");
@@ -417,45 +469,57 @@ void output_static(char *what)
                        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], ".css", 4))
+                       wprintf("Content-type: text/css\n");
                else if (!strncasecmp(&what[strlen(what) - 4], ".jpg", 4))
                        wprintf("Content-type: image/jpeg\n");
+               else if (!strncasecmp(&what[strlen(what) - 4], ".png", 4))
+                       wprintf("Content-type: image/png\n");
                else if (!strncasecmp(&what[strlen(what) - 5], ".html", 5))
                        wprintf("Content-type: text/html\n");
+               else if (!strncasecmp(&what[strlen(what) - 4], ".wml", 4))
+                       wprintf("Content-type: text/vnd.wap.wml\n");
+               else if (!strncasecmp(&what[strlen(what) - 5], ".wmls", 5))
+                       wprintf("Content-type: text/vnd.wap.wmlscript\n");
+               else if (!strncasecmp(&what[strlen(what) - 5], ".wmlc", 5))
+                       wprintf("Content-type: application/vnd.wap.wmlc\n");
+               else if (!strncasecmp(&what[strlen(what) - 6], ".wmlsc", 6))
+                       wprintf("Content-type: application/vnd.wap.wmlscriptc\n");
+               else if (!strncasecmp(&what[strlen(what) - 5], ".wbmp", 5))
+                       wprintf("Content-type: image/vnd.wap.wbmp\n");
                else
                        wprintf("Content-type: application/octet-stream\n");
 
                fstat(fileno(fp), &statbuf);
                bytes = statbuf.st_size;
-               fprintf(stderr, "Static: %s, %ld bytes\n", what, bytes);
+               lprintf(3, "Static: %s, %ld bytes\n", what, bytes);
                wprintf("Content-length: %ld\n", (long) bytes);
                wprintf("\n");
-               while (bytes > 0) {
-                       thisblock = sizeof(buf);
-                       if (thisblock > bytes) thisblock = bytes;
-                       fread(buf, thisblock, 1, fp);
-                       write(WC->http_sock, buf, thisblock);
-                       bytes = bytes - thisblock;
-               }
+               bigbuffer = malloc(bytes);
+               fread(bigbuffer, bytes, 1, fp);
                fclose(fp);
+               http_write(WC->http_sock, bigbuffer, bytes);
+               free(bigbuffer);
        }
        if (!strcasecmp(bstr("force_close_session"), "yes")) {
                end_webcit_session();
        }
 }
 
+
 /*
  * When the browser requests an image file from the Citadel server,
  * this function is called to transmit it.
  */
 void output_image()
 {
-       char buf[256];
+       char buf[SIZ];
        char xferbuf[4096];
        off_t bytes;
        off_t thisblock;
        off_t accomplished = 0L;
 
-
+       lprintf(5, "output_image() called\n");
        serv_printf("OIMG %s|%s", bstr("name"), bstr("parm"));
        serv_gets(buf);
        if (buf[0] == '2') {
@@ -467,25 +531,132 @@ void output_image()
 
                while (bytes > (off_t) 0) {
                        thisblock = (off_t) sizeof(xferbuf);
-                       if (thisblock > bytes)
+                       if (thisblock > bytes) {
                                thisblock = bytes;
+                       }
                        serv_printf("READ %ld|%ld", accomplished, thisblock);
                        serv_gets(buf);
-                       if (buf[0] == '6')
+                       if (buf[0] == '6') {
                                thisblock = extract_long(&buf[4], 0);
-                       serv_read(xferbuf, (int) thisblock);
-                       write(WC->http_sock, xferbuf, thisblock);
+                               serv_read(xferbuf, (int) thisblock);
+                       }
+                       else {
+                               memset(xferbuf, 0, thisblock);
+                       }
+                       http_write(WC->http_sock, xferbuf, thisblock);
                        bytes = bytes - thisblock;
                        accomplished = accomplished + thisblock;
                }
                serv_puts("CLOS");
                serv_gets(buf);
        } else {
-               wprintf("HTTP/1.0 404 %s\n", strerror(errno));
+               wprintf("HTTP/1.0 404 %s\n", &buf[4]);
+               output_headers(0);
+               wprintf("Content-Type: text/plain\n");
+               wprintf("\n");
+               wprintf("Error retrieving image: %s\n", &buf[4]);
+       }
+
+}
+
+/*
+ */
+void output_mimepart()
+{
+       char buf[SIZ];
+       char xferbuf[4096];
+       off_t bytes;
+       off_t thisblock;
+       off_t accomplished = 0L;
+       char content_type[SIZ];
+       
+       serv_printf("OPNA %s|%s", bstr("msgnum"), bstr("partnum"));
+       serv_gets(buf);
+       if (buf[0] == '2') {
+               bytes = extract_long(&buf[4], 0);
+               extract(content_type, &buf[4], 3);
+               output_headers(0);
+               wprintf("Content-type: %s\n", content_type);
+               wprintf("Content-length: %ld\n", (long) bytes);
+               wprintf("\n");
+
+               while (bytes > (off_t) 0) {
+                       thisblock = (off_t) sizeof(xferbuf);
+                       if (thisblock > bytes) {
+                               thisblock = bytes;
+                       }
+                       serv_printf("READ %ld|%ld", accomplished, thisblock);
+                       serv_gets(buf);
+                       if (buf[0] == '6') {
+                               thisblock = extract_long(&buf[4], 0);
+                               serv_read(xferbuf, (int) thisblock);
+                       }
+                       else {
+                               memset(xferbuf, 0, thisblock);
+                       }
+                       http_write(WC->http_sock, xferbuf, thisblock);
+                       bytes = bytes - thisblock;
+                       accomplished = accomplished + thisblock;
+               }
+               serv_puts("CLOS");
+               serv_gets(buf);
+       } else {
+               wprintf("HTTP/1.0 404 %s\n", &buf[4]);
                output_headers(0);
                wprintf("Content-Type: text/plain\n");
                wprintf("\n");
-               wprintf("Error retrieving image\n");
+               wprintf("Error retrieving part: %s\n", &buf[4]);
+       }
+
+}
+
+
+/*
+ */
+char *load_mimepart(long msgnum, char *partnum)
+{
+       char buf[SIZ];
+       off_t bytes;
+       off_t thisblock;
+       off_t accomplished = 0L;
+       char content_type[SIZ];
+       char *content;
+       
+       serv_printf("OPNA %ld|%s", msgnum, partnum);
+       serv_gets(buf);
+       if (buf[0] == '2') {
+               bytes = extract_long(&buf[4], 0);
+               extract(content_type, &buf[4], 3);
+
+               content = malloc(bytes + 1);
+
+               while (bytes > (off_t) 0) {
+                       thisblock = bytes;
+                       if (thisblock > 4096L) {
+                               thisblock = 4096L;
+                       }
+                       if (thisblock > bytes) {
+                               thisblock = bytes;
+                       }
+                       serv_printf("READ %ld|%ld", accomplished, thisblock);
+                       serv_gets(buf);
+                       if (buf[0] == '6') {
+                               thisblock = extract_long(&buf[4], 0);
+                               serv_read(&content[accomplished], (int) thisblock);
+                       }
+                       else {
+                               memset(&content[accomplished], 0, thisblock);
+                       }
+                       bytes = bytes - thisblock;
+                       accomplished = accomplished + thisblock;
+               }
+               serv_puts("CLOS");
+               serv_gets(buf);
+               content[accomplished] = 0;      /* null terminate for good measure */
+               return(content);
+       }
+       else {
+               return(NULL);
        }
 
 }
@@ -498,17 +669,75 @@ void convenience_page(char *titlebarcolor, char *titlebarmsg, char *messagetext)
 {
        wprintf("HTTP/1.0 200 OK\n");
        output_headers(1);
-       wprintf("<TABLE WIDTH=100% BORDER=0 BGCOLOR=%s><TR><TD>", titlebarcolor);
+       wprintf("<TABLE WIDTH=100%% BORDER=0 BGCOLOR=%s><TR><TD>", titlebarcolor);
        wprintf("<FONT SIZE=+1 COLOR=\"FFFFFF\"");
        wprintf("<B>%s</B>\n", titlebarmsg);
        wprintf("</FONT></TD></TR></TABLE><BR>\n");
        escputs(messagetext);
 
        wprintf("<HR>\n");
-       embed_main_menu();
        wDumpContent(1);
 }
 
+
+/*
+ * Display a blank page.
+ */
+void blank_page(void) {
+       output_headers(7);
+       wDumpContent(2);
+}
+
+
+
+
+/*
+ * Offer to make any page the user's "start page."
+ */
+void offer_start_page(void) {
+       wprintf("<A HREF=\"/change_start_page?startpage=");
+       urlescputs(WC->this_page);
+       wprintf("\">"
+               "<FONT SIZE=-2 COLOR=#AAAAAA>Make this my start page</FONT>"
+               "</A>"
+       );
+}
+
+
+/* 
+ * Change the user's start page
+ */
+void change_start_page(void) {
+
+       if (bstr("startpage") == NULL) {
+               display_error("startpage set to null");
+               return;
+       }
+
+       set_preference("startpage", bstr("startpage"));
+
+       output_headers(3);
+       wprintf("<TABLE WIDTH=100%% BORDER=0 BGCOLOR=000077><TR><TD>");
+       wprintf("<FONT SIZE=+1 COLOR=\"FFFFFF\"");
+       wprintf("<B>New start page</B>\n");
+       wprintf("</FONT></TD></TR></TABLE>\n");
+
+       wprintf("<CENTER>"
+               "<font size=+2>Your start page has been changed.</font>"
+               "<BR><BR>\n"
+               "<I>(Note: this does not change your browser's home page. "
+               "It changes the page you begin on when you log on to ");
+       escputs(serv_info.serv_humannode);
+       wprintf(".)</I><BR><BR>"
+               "<a href = \"javascript:history.back()\">Back...</a>"
+               "</CENTER>");
+
+       wDumpContent(1);
+}
+
+
+
+
 void display_error(char *errormessage)
 {
        convenience_page("770000", "Error", errormessage);
@@ -554,53 +783,61 @@ void extract_action(char *actbuf, char *cmdbuf)
 }
 
 
-void upload_handler(char *name, char *filename, char *encoding,
-                   void *content, char *cbtype, size_t length)
+void upload_handler(char *name, char *filename, char *partnum, char *disp,
+                       void *content, char *cbtype, size_t length,
+                       char *encoding, void *userdata)
 {
 
-       fprintf(stderr, "UPLOAD HANDLER CALLED\n");
-       fprintf(stderr, "    name = %s\n", name);
-       fprintf(stderr, "filename = %s\n", filename);
-       fprintf(stderr, "encoding = %s\n", encoding);
-       fprintf(stderr, "    type = %s\n", cbtype);
-       fprintf(stderr, "  length = %ld\n", (long)length);
+       lprintf(5, "UPLOAD HANDLER CALLED\n");
+       lprintf(5, "    name = %s\n", name);
+       lprintf(5, "filename = %s\n", filename);
+       lprintf(5, "encoding = %s\n", encoding);
+       lprintf(5, "    type = %s\n", cbtype);
+       lprintf(5, "  length = %ld\n", (long)length);
 
-       if (strlen(name) > 0) {
+       if (length > 0) {
                WC->upload = malloc(length);
                if (WC->upload != NULL) {
                        WC->upload_length = length;
                        memcpy(WC->upload, content, length);
                }
+               else {
+                       lprintf(9, "malloc() failed: %s\n",
+                               strerror(errno));
+               }
        }
 }
 
 
+
+
 /*
  * Entry point for WebCit transaction
  */
-void session_loop(struct httprequest *req)
+void session_loop(struct httprequest *req, int gzip)
 {
-       char cmd[256];
-       char action[256];
-       char buf[256];
+       char cmd[SIZ];
+       char action[SIZ];
+       char buf[SIZ];
        int a, b;
        int ContentLength = 0;
        int BytesRead;
        char ContentType[512];
        char *content;
+       char *content_end;
        struct httprequest *hptr;
-       char browser_host[256];
-       char user_agent[256];
+       char browser_host[SIZ];
+       char user_agent[SIZ];
 
        /* 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.
         */
-       char c_host[256];
-       char c_port[256];
-       char c_username[256];
-       char c_password[256];
-       char c_roomname[256];
-       char cookie[256];
+       char c_host[SIZ];
+       char c_port[SIZ];
+       char c_username[SIZ];
+       char c_password[SIZ];
+       char c_roomname[SIZ];
+       char cookie[SIZ];
 
        strcpy(c_host, defaulthost);
        strcpy(c_port, defaultport);
@@ -611,6 +848,15 @@ void session_loop(struct httprequest *req)
        WC->upload_length = 0;
        WC->upload = NULL;
 
+       WC->is_wap = 0;
+
+       if (gzip) {
+               WC->gzcompressed = 1;
+       }
+       else {
+               WC->gzcompressed = 0;
+       }
+
        hptr = req;
        if (hptr == NULL) return;
 
@@ -631,15 +877,22 @@ void session_loop(struct httprequest *req)
                        ContentLength = atoi(&buf[16]);
                }
                else if (!strncasecmp(buf, "Content-type: ", 14)) {
-                       strcpy(ContentType, &buf[14]);
+                       safestrncpy(ContentType, &buf[14], sizeof ContentType);
                }
                else if (!strncasecmp(buf, "User-agent: ", 12)) {
-                       strcpy(user_agent, &buf[12]);
+                       safestrncpy(user_agent, &buf[12], sizeof user_agent);
+               }
+               else if (!strncasecmp(buf, "Host: ", 6)) {
+                       safestrncpy(WC->http_host, &buf[6], sizeof WC->http_host);
+               }
+               /* Only WAP gateways explicitly name this content-type */
+               else if (strstr(buf, "text/vnd.wap.wml")) {
+                       WC->is_wap = 1;
                }
        }
 
        if (ContentLength > 0) {
-               fprintf(stderr, "Content length: %d\n", ContentLength);
+               lprintf(5, "Content length: %d\n", ContentLength);
                content = malloc(ContentLength + 1);
                memset(content, 0, ContentLength+1);
                BytesRead = 0;
@@ -655,15 +908,21 @@ void session_loop(struct httprequest *req)
                              "application/x-www-form-urlencoded", 33)) {
                        addurls(content);
                } else if (!strncasecmp(ContentType, "multipart", 9)) {
-                       mime_parser(content, ContentLength, ContentType,
-                                   *upload_handler);
+                       content_end = content + ContentLength;
+                       mime_parser(content, content_end, *upload_handler,
+                                       NULL, NULL, NULL, 0);
                }
        } else {
                content = NULL;
        }
 
+       /* make a note of where we are in case the user wants to save it */
+       safestrncpy(WC->this_page, cmd, sizeof(WC->this_page));
+       remove_token(WC->this_page, 2, ' ');
+       remove_token(WC->this_page, 0, ' ');
+
        /* If there are variables in the URL, we must grab them now */
-       for (a = 0; a < strlen(cmd); ++a)
+       for (a = 0; a < strlen(cmd); ++a) {
                if ((cmd[a] == '?') || (cmd[a] == '&')) {
                        for (b = a; b < strlen(cmd); ++b)
                                if (isspace(cmd[b]))
@@ -671,6 +930,8 @@ void session_loop(struct httprequest *req)
                        addurls(&cmd[a + 1]);
                        cmd[a] = 0;
                }
+       }
+
        /*
         * If we're not connected to a Citadel server, try to hook up the
         * connection now.  Preference is given to the host and port specified
@@ -694,13 +955,24 @@ void session_loop(struct httprequest *req)
 
                if (WC->serv_sock < 0) {
                        do_logout();
+                       goto SKIP_ALL_THIS_CRAP;
+               }
+               else {
+                       WC->connected = 1;
+                       serv_gets(buf); /* get the server welcome message */
+                       locate_host(browser_host, WC->http_sock);
+                       get_serv_info(browser_host, user_agent);
                }
+       }
 
-               WC->connected = 1;
-               serv_gets(buf); /* get the server welcome message */
-               locate_host(browser_host, WC->http_sock);
-               get_serv_info(browser_host, user_agent);
+       /*
+        * Functions which can be performed without logging in
+        */
+       if (!strcasecmp(action, "listsub")) {
+               do_listsub();
+               goto SKIP_ALL_THIS_CRAP;
        }
+
        check_for_express_messages();
 
        /*
@@ -737,23 +1009,31 @@ void session_loop(struct httprequest *req)
                output_static(buf);
        } else if (!strcasecmp(action, "image")) {
                output_image();
+
+       /*
+        * All functions handled below this point ... make sure we log in
+        * before doing anything else!
+        */
        } else if ((!WC->logged_in) && (!strcasecmp(action, "login"))) {
                do_login();
        } else if (!WC->logged_in) {
                display_login(NULL);
        }
-       /* Various commands... */
+
+       /*
+        * Various commands...
+        */
 
        else if (!strcasecmp(action, "do_welcome")) {
                do_welcome();
+       } else if (!strcasecmp(action, "blank")) {
+               blank_page();
        } else if (!strcasecmp(action, "display_main_menu")) {
                display_main_menu();
-       } else if (!strcasecmp(action, "advanced")) {
-               display_advanced_menu();
        } else if (!strcasecmp(action, "whobbs")) {
                whobbs();
        } else if (!strcasecmp(action, "knrooms")) {
-               list_all_rooms_by_floor();
+               knrooms();
        } else if (!strcasecmp(action, "gotonext")) {
                slrp_highest();
                gotonext();
@@ -764,6 +1044,8 @@ void session_loop(struct httprequest *req)
        } else if (!strcasecmp(action, "dotgoto")) {
                slrp_highest();
                smart_goto(bstr("room"));
+       } else if (!strcasecmp(action, "dotskip")) {
+               smart_goto(bstr("room"));
        } else if (!strcasecmp(action, "termquit")) {
                do_logout();
        } else if (!strcasecmp(action, "readnew")) {
@@ -772,12 +1054,12 @@ void session_loop(struct httprequest *req)
                readloop("readold");
        } else if (!strcasecmp(action, "readfwd")) {
                readloop("readfwd");
+       } else if (!strcasecmp(action, "headers")) {
+               readloop("headers");
        } else if (!strcasecmp(action, "display_enter")) {
                display_enter();
        } else if (!strcasecmp(action, "post")) {
                post_message();
-       } else if (!strcasecmp(action, "confirm_delete_msg")) {
-               confirm_delete_msg();
        } else if (!strcasecmp(action, "delete_msg")) {
                delete_msg();
        } else if (!strcasecmp(action, "confirm_move_msg")) {
@@ -810,8 +1092,12 @@ void session_loop(struct httprequest *req)
                entroom();
        } else if (!strcasecmp(action, "display_editroom")) {
                display_editroom();
+       } else if (!strcasecmp(action, "netedit")) {
+               netedit();
        } else if (!strcasecmp(action, "editroom")) {
                editroom();
+        } else if (!strcasecmp(action, "display_whok")) {
+                display_whok();
        } else if (!strcasecmp(action, "display_editinfo")) {
                display_edit("Room info", "EINF 0", "RINF", "/editinfo");
        } else if (!strcasecmp(action, "editinfo")) {
@@ -839,8 +1125,12 @@ void session_loop(struct httprequest *req)
                                        "/editroompic");
        } else if (!strcasecmp(action, "editroompic")) {
                do_graphics_upload("UIMG 1|_roompic_");
-       } else if (!strcasecmp(action, "select_floor_to_edit_pic")) {
-               select_floor_to_edit_pic();
+       } else if (!strcasecmp(action, "delete_floor")) {
+               delete_floor();
+       } else if (!strcasecmp(action, "rename_floor")) {
+               rename_floor();
+       } else if (!strcasecmp(action, "create_floor")) {
+               create_floor();
        } else if (!strcasecmp(action, "display_editfloorpic")) {
                sprintf(buf, "UIMG 0|_floorpic_|%s",
                        bstr("which_floor"));
@@ -861,24 +1151,18 @@ void session_loop(struct httprequest *req)
                changepw();
        } else if (!strcasecmp(action, "display_edit_node")) {
                display_edit_node();
+       } else if (!strcasecmp(action, "edit_node")) {
+               edit_node();
        } else if (!strcasecmp(action, "display_netconf")) {
                display_netconf();
-       } else if (!strcasecmp(action, "display_confirm_unshare")) {
-               display_confirm_unshare();
        } else if (!strcasecmp(action, "display_confirm_delete_node")) {
                display_confirm_delete_node();
        } else if (!strcasecmp(action, "delete_node")) {
                delete_node();
-       } else if (!strcasecmp(action, "unshare")) {
-               unshare();
        } else if (!strcasecmp(action, "display_add_node")) {
                display_add_node();
        } else if (!strcasecmp(action, "add_node")) {
                add_node();
-       } else if (!strcasecmp(action, "display_share")) {
-               display_share();
-       } else if (!strcasecmp(action, "share")) {
-               share();
        } else if (!strcasecmp(action, "terminate_session")) {
                slrp_highest();
                terminate_session();
@@ -886,6 +1170,8 @@ void session_loop(struct httprequest *req)
                edit_me();
        } else if (!strcasecmp(action, "display_siteconfig")) {
                display_siteconfig();
+       } else if (!strcasecmp(action, "page_popup")) {
+               page_popup();
        } else if (!strcasecmp(action, "siteconfig")) {
                siteconfig();
        } else if (!strcasecmp(action, "display_generic")) {
@@ -894,6 +1180,34 @@ void session_loop(struct httprequest *req)
                do_generic();
        } else if (!strcasecmp(action, "display_menubar")) {
                display_menubar(1);
+       } else if (!strcasecmp(action, "output_mimepart")) {
+               output_mimepart();
+       } else if (!strcasecmp(action, "edit_vcard")) {
+               edit_vcard();
+       } else if (!strcasecmp(action, "submit_vcard")) {
+               submit_vcard();
+       } else if (!strcasecmp(action, "select_user_to_edit")) {
+               select_user_to_edit(NULL, NULL);
+       } else if (!strcasecmp(action, "display_edituser")) {
+               display_edituser(NULL);
+       } else if (!strcasecmp(action, "edituser")) {
+               edituser();
+       } else if (!strcasecmp(action, "create_user")) {
+               create_user();
+       } else if (!strcasecmp(action, "changeview")) {
+               change_view();
+       } else if (!strcasecmp(action, "folders")) {
+               folders();
+       } else if (!strcasecmp(action, "do_stuff_to_msgs")) {
+               do_stuff_to_msgs();
+       } else if (!strcasecmp(action, "change_start_page")) {
+               change_start_page();
+       } else if (!strcasecmp(action, "display_floorconfig")) {
+               display_floorconfig(NULL);
+       } else if (!strcasecmp(action, "toggle_self_service")) {
+               toggle_self_service();
+       } else if (!strcasecmp(action, "summary")) {
+               summary();
        } else if (!strcasecmp(action, "diagnostics")) {
                output_headers(1);
 
@@ -911,6 +1225,7 @@ void session_loop(struct httprequest *req)
                display_main_menu();
        }
 
+SKIP_ALL_THIS_CRAP:
        fflush(stdout);
        if (content != NULL) {
                free(content);
@@ -921,4 +1236,12 @@ void session_loop(struct httprequest *req)
                free(WC->upload);
                WC->upload_length = 0;
        }
+
+#ifdef WITH_ZLIB
+       if (WC->gzfd) {
+               gzclose(WC->gzfd);
+               WC->gzfd = NULL;
+               WC->gzcompressed = 0;
+       }
+#endif
 }