+++ /dev/null
-// This is the main transaction loop of the web service. It maintains a
-// persistent session to the Citadel server, handling HTTP WebCit requests as
-// they arrive and presenting a user interface.
-//
-// Copyright (c) 1996-2021 by the citadel.org team
-//
-// This program is open source software. You can redistribute it and/or
-// modify it under the terms of the GNU General Public License, version 3.
-
-
-#define SHOW_ME_VAPPEND_PRINTF
-#include <stdio.h>
-#include <stdarg.h>
-#include "webcit.h"
-#include "dav.h"
-#include "webserver.h"
-
-StrBuf *csslocal = NULL;
-HashList *HandlerHash = NULL;
-
-void stuff_to_cookie(int unset_cookie);
-extern int GetConnected(void);
-extern int verbose;
-
-void PutRequestLocalMem(void *Data, DeleteHashDataFunc DeleteIt)
-{
- int n;
-
- n = GetCount(WC->Hdr->HTTPHeaders);
- Put(WC->Hdr->HTTPHeaders, IKEY(n), Data, DeleteIt);
-}
-
-void DeleteWebcitHandler(void *vHandler)
-{
- WebcitHandler *Handler = (WebcitHandler*) vHandler;
- FreeStrBuf(&Handler->Name);
- FreeStrBuf(&Handler->DisplayName);
- free (Handler);
-}
-
-void WebcitAddUrlHandler(const char * UrlString, long UrlSLen,
- const char *DisplayName, long dslen,
- WebcitHandlerFunc F,
- long Flags)
-{
- WebcitHandler *NewHandler;
- NewHandler = (WebcitHandler*) malloc(sizeof(WebcitHandler));
- NewHandler->F = F;
- NewHandler->Flags = Flags;
- NewHandler->Name = NewStrBufPlain(UrlString, UrlSLen);
- StrBufShrinkToFit(NewHandler->Name, 1);
- NewHandler->DisplayName = NewStrBufPlain(DisplayName, dslen);
- StrBufShrinkToFit(NewHandler->DisplayName, 1);
- Put(HandlerHash, UrlString, UrlSLen, NewHandler, DeleteWebcitHandler);
-}
-
-void tmplput_HANDLER_DISPLAYNAME(StrBuf *Target, WCTemplputParams *TP)
-{
- if (WC->Hdr->HR.Handler != NULL)
- StrBufAppendTemplate(Target, TP, WC->Hdr->HR.Handler->DisplayName, 0);
-}
-
-
-/*
- * web-printing funcion. uses our vsnprintf wrapper
- */
-#ifdef UBER_VERBOSE_DEBUGGING
-void wcc_printf(const char *FILE, const char *FUNCTION, long LINE, const char *format,...)
-#else
-void wc_printf(const char *format,...)
-#endif
-{
- va_list arg_ptr;
-
- if (WC->WBuf == NULL)
- WC->WBuf = NewStrBuf();
-#ifdef UBER_VERBOSE_DEBUGGING
- StrBufAppendPrintf(WC->WBuf, "\n%s:%s:%d[", FILE, FUNCTION, LINE);
-#endif
-
- va_start(arg_ptr, format);
- StrBufVAppendPrintf(WC->WBuf, format, arg_ptr);
- va_end(arg_ptr);
-#ifdef UBER_VERBOSE_DEBUGGING
- StrBufAppendPrintf(WC->WBuf, "]\n");
-#endif
-}
-
-/*
- * http-header-printing funcion. uses our vsnprintf wrapper
- */
-void hprintf(const char *format,...)
-{
- va_list arg_ptr;
-
- va_start(arg_ptr, format);
- StrBufVAppendPrintf(WC->HBuf, format, arg_ptr);
- va_end(arg_ptr);
-}
-
-
-
-/*
- * wrap up an HTTP session, closes tags, etc.
- *
- * print_standard_html_footer should be set to:
- * 0 - to transmit only,
- * nonzero - to append the closing tags
- */
-void wDumpContent(int print_standard_html_footer)
-{
- if (print_standard_html_footer) {
- wc_printf("</div> <!-- end of 'content' div -->\n");
- do_template("trailing");
- }
-
- /* If we've been saving it all up for one big output burst,
- * go ahead and do that now.
- */
- end_burst();
-}
-
-
-
-
-/*
- * Output HTTP headers and leading HTML for a page
- */
-void output_headers( int do_httpheaders, /* 1 = output HTTP headers */
- int do_htmlhead, /* 1 = output HTML <head> section and <body> opener */
- int do_room_banner, /* 1 = include the room banner and <div id="content"></div> */
- int unset_cookies, /* 1 = session is terminating, so unset the cookies */
- int suppress_check, /* 1 = suppress check for instant messages */
- int cache /* 1 = allow browser to cache this page */
-) {
- char httpnow[128];
-
- if (WC->isFailure)
- hprintf("HTTP/2.2 500 Internal Server Error");
- else if (WC->Hdr->HaveRange > 1)
- hprintf("HTTP/1.1 206 Partial Content\r\n");
- else
- hprintf("HTTP/1.1 200 OK\r\n");
-
- http_datestring(httpnow, sizeof httpnow, time(NULL));
-
- if (do_httpheaders) {
- if (WC->serv_info != NULL)
- hprintf("Content-type: text/html; charset=utf-8\r\n"
- "Server: %s / %s\n"
- "Connection: close\r\n",
- PACKAGE_STRING,
- ChrPtr(WC->serv_info->serv_software));
- else
- hprintf("Content-type: text/html; charset=utf-8\r\n"
- "Server: %s / [n/a]\n"
- "Connection: close\r\n",
- PACKAGE_STRING);
- }
-
- if (cache > 0) {
- char httpTomorow[128];
-
- http_datestring(httpTomorow, sizeof httpTomorow,
- time(NULL) + 60 * 60 * 24 * 2);
-
- hprintf("Pragma: public\r\n"
- "Cache-Control: max-age=3600, must-revalidate\r\n"
- "Last-modified: %s\r\n"
- "Expires: %s\r\n",
- httpnow,
- httpTomorow
- );
- }
- else {
- hprintf("Pragma: no-cache\r\n"
- "Cache-Control: no-store\r\n"
- "Expires: -1\r\n"
- );
- }
-
- if (cache < 2) stuff_to_cookie(unset_cookies);
-
- if (do_htmlhead) {
- begin_burst();
- do_template("head");
- if ( (WC->logged_in) && (!unset_cookies) ) {
- DoTemplate(HKEY("paging"), NULL, &NoCtx);
- }
- if (do_room_banner) {
- tmplput_roombanner(NULL, NULL);
- }
- }
-
- if (do_room_banner) {
- wc_printf("<div id=\"content\">\n");
- }
-}
-
-void output_custom_content_header(const char *ctype) {
- hprintf("HTTP/1.1 200 OK\r\n");
- hprintf("Content-type: %s; charset=utf-8\r\n",ctype);
- hprintf("Server: %s / %s\r\n", PACKAGE_STRING, ChrPtr(WC->serv_info->serv_software));
- hprintf("Connection: close\r\n");
-}
-
-
-/*
- * Generic function to do an HTTP redirect. Easy and fun.
- */
-void http_redirect(const char *whichpage) {
- hprintf("HTTP/1.1 302 Moved Temporarily\n");
- hprintf("Location: %s\r\n", whichpage);
- hprintf("URI: %s\r\n", whichpage);
- hprintf("Content-type: text/html; charset=utf-8\r\n");
- stuff_to_cookie(0);
- begin_burst();
- wc_printf("<html><body>");
- wc_printf("Go <a href=\"%s\">here</A>.", whichpage);
- wc_printf("</body></html>\n");
- end_burst();
-}
-
-
-
-/*
- * Output a piece of content to the web browser using conformant HTTP and MIME semantics.
- *
- * If this function is called, it is expected that begin_burst() has already been called
- * and some sort of content has been fed into the buffer. This function will transmit a
- * bunch of headers to the client. end_burst() will add some headers of its own, and then
- * transmit the buffered content to the client.
- */
-void http_transmit_thing(const char *content_type, int is_static)
-{
- if (verbose)
- syslog(LOG_DEBUG, "http_transmit_thing(%s)%s", content_type, ((is_static > 0) ? " (static)" : ""));
- output_headers(0, 0, 0, 0, 0, is_static);
-
- hprintf("Content-type: %s\r\n"
- "Server: %s\r\n"
- "Connection: close\r\n",
- content_type,
- PACKAGE_STRING);
-
- end_burst();
-}
-
-void http_transmit_headers(const char *content_type, int is_static, long is_chunked, int is_gzip)
-{
- if (verbose)
- syslog(LOG_DEBUG, "http_transmit_thing(%s)%s", content_type, ((is_static > 0) ? " (static)" : ""));
- output_headers(0, 0, 0, 0, 0, is_static);
-
- if (is_gzip)
- hprintf("Content-encoding: gzip\r\n");
-
- if (WC->Hdr->HaveRange)
- hprintf("Accept-Ranges: bytes\r\n"
- "Content-Range: bytes %ld-%ld/%ld\r\n",
- WC->Hdr->RangeStart,
- WC->Hdr->RangeTil,
- WC->Hdr->TotalBytes);
-
- hprintf("Content-type: %s\r\n"
- "Server: "PACKAGE_STRING"\r\n"
- "%s"
- "Connection: close\r\n\r\n",
- content_type,
- (is_chunked)?"Transfer-Encoding: chunked\r\n":"");
-}
-
-
-/*
- * Convenience functions to display a page containing only a string
- *
- * titlebarcolor color of the titlebar of the frame
- * titlebarmsg text to display in the title bar
- * messagetext body of the box
- */
-void convenience_page(const char *titlebarcolor, const char *titlebarmsg, const char *messagetext)
-{
- hprintf("HTTP/1.1 200 OK\n");
- output_headers(1, 1, 1, 0, 0, 0);
- wc_printf("<div id=\"room_banner_override\">\n");
- wc_printf("<table width=100%% border=0 bgcolor=\"#%s\"><tr><td>", titlebarcolor);
- wc_printf("<span class=\"titlebar\">%s</span>\n", titlebarmsg);
- wc_printf("</td></tr></table>\n");
- wc_printf("</div>\n<div id=\"content\">\n");
- escputs(messagetext);
- wc_printf("<hr />\n");
- wDumpContent(1);
-}
-
-
-/*
- * Display a blank page.
- */
-void blank_page(void) {
- output_headers(1, 1, 0, 0, 0, 0);
- wDumpContent(2);
-}
-
-
-/*
- * A template has been requested
- */
-void url_do_template(void) {
- const StrBuf *MimeType;
- const StrBuf *Tmpl = sbstr("template");
- begin_burst();
- MimeType = DoTemplate(SKEY(Tmpl), NULL, &NoCtx);
- http_transmit_thing(ChrPtr(MimeType), 0);
-}
-
-
-
-/*
- * convenience function to indicate success
- */
-void display_success(const char *successmessage)
-{
- convenience_page("007700", "OK", successmessage);
-}
-
-
-/*
- * Authorization required page (sends a 401, causing the browser to request login credentials)
- */
-void authorization_required(void)
-{
- const char *message = "";
-
- hprintf("HTTP/1.1 401 Authorization Required\r\n");
- hprintf(
- "Server: %s / %s\r\n"
- "Connection: close\r\n",
- PACKAGE_STRING, ChrPtr(WC->serv_info->serv_software)
- );
- hprintf("WWW-Authenticate: Basic realm=\"%s\"\r\n", ChrPtr(WC->serv_info->serv_humannode));
-
- /* if this is a false cookie authentication, remove it to avoid endless loops. */
- if (StrLength(WC->Hdr->HR.RawCookie) > 0)
- stuff_to_cookie(1);
-
- hprintf("Content-Type: text/html\r\n");
- begin_burst();
- wc_printf("<h1>");
- wc_printf(_("Authorization Required"));
- wc_printf("</h1>\r\n");
-
- if (WC->ImportantMsg != NULL) {
- message = ChrPtr(WC->ImportantMsg);
- }
-
- wc_printf(
- _("The resource you requested requires a valid username and password. "
- "You could not be logged in: %s\n"),
- message
- );
- wDumpContent(0);
-}
-
-
-/*
- * Convenience functions to wrap around asynchronous ajax responses
- */
-void begin_ajax_response(void) {
-
- FlushStrBuf(WC->HBuf);
- output_headers(0, 0, 0, 0, 0, 0);
-
- hprintf("Content-type: text/html; charset=UTF-8\r\n"
- "Server: %s\r\n"
- "Connection: close\r\n"
- ,
- PACKAGE_STRING);
- begin_burst();
-}
-
-
-/*
- * print ajax response footer
- */
-void end_ajax_response(void) {
- wDumpContent(0);
-}
-
-
-/*
- * Wraps a Citadel server command in an AJAX transaction.
- */
-void ajax_servcmd(void) {
- int Done = 0;
- StrBuf *Buf;
- char *junk;
- size_t len;
-
- if (verbose) {
- syslog(LOG_DEBUG, "ajax_servcmd() g_cmd=\"%s\"", bstr("g_cmd") );
- }
- begin_ajax_response();
- Buf = NewStrBuf();
- serv_puts(bstr("g_cmd"));
- StrBuf_ServGetln(Buf);
- StrBufAppendBuf(WC->WBuf, Buf, 0);
- StrBufAppendBufPlain(WC->WBuf, HKEY("\n"), 0);
-
- switch (GetServerStatus(Buf, NULL)) {
- case 8:
- serv_puts("\n\n000");
- if ( (StrLength(Buf)==3) &&
- !strcmp(ChrPtr(Buf), "000")) {
- StrBufAppendBufPlain(WC->WBuf, HKEY("\000"), 0);
- break;
- }
- case 1:
- while (!Done) {
- if (StrBuf_ServGetln(Buf) < 0)
- break;
- if ( (StrLength(Buf)==3) &&
- !strcmp(ChrPtr(Buf), "000")) {
- Done = 1;
- }
- StrBufAppendBuf(WC->WBuf, Buf, 0);
- StrBufAppendBufPlain(WC->WBuf, HKEY("\n"), 0);
- }
- break;
- case 4:
- text_to_server(bstr("g_input"));
- serv_puts("000");
- break;
- case 6:
- len = atol(&ChrPtr(Buf)[4]);
- StrBuf_ServGetBLOBBuffered(Buf, len);
- break;
- case 7:
- len = atol(&ChrPtr(Buf)[4]);
- junk = malloc(len);
- memset(junk, 0, len);
- serv_write(junk, len);
- free(junk);
- }
-
- end_ajax_response();
-
- /*
- * This is kind of an ugly hack, but this is the only place it can go.
- * If the command was GEXP, then the instant messenger window must be
- * running, so reset the "last_pager_check" watchdog timer so
- * that page_popup() doesn't try to open it a second time. TODO: page_popup isn't with us anymore.
- */
- if (!strncasecmp(bstr("g_cmd"), "GEXP", 4)) {
- WC->last_pager_check = time(NULL);
- }
- FreeStrBuf(&Buf);
-}
-
-
-/*
- * Helper function for the asynchronous check to see if we need
- * to open the instant messenger window.
- */
-void seconds_since_last_gexp(void)
-{
- char buf[256];
-
- if ( (time(NULL) - WC->last_pager_check) < 30) {
- wc_printf("NO\n");
- }
- else {
- memset(buf, 0, 5);
- serv_puts("NOOP");
- serv_getln(buf, sizeof buf);
- if (buf[3] == '*') {
- wc_printf("YES");
- }
- else {
- wc_printf("NO");
- }
- }
-}
-
-
-/*
- * Save a URL destination so we can go to it later
- */
-void push_destination(void) {
-
- if (!WC) {
- wc_printf("no session");
- return;
- }
-
- FreeStrBuf(&WC->PushedDestination);
- WC->PushedDestination = NewStrBufDup(sbstr("url"));
- if (verbose)
- syslog(LOG_DEBUG, "Push: %s", ChrPtr(WC->PushedDestination));
- wc_printf("OK");
-}
-
-
-/*
- * Go to the URL saved by push_destination()
- */
-void pop_destination(void) {
- /*
- * If we are in the middle of a new user signup, the server may request that
- * we first pass through a registration screen.
- */
- if ((WC) && (WC->need_regi)) {
- if ((WC->PushedDestination != NULL) && (StrLength(WC->PushedDestination) > 0)) {
- /* Registering will take us to the My Citadel Config room, so save our place */
- StrBufAppendBufPlain(WC->PushedDestination, HKEY("?go="), 0);
- StrBufUrlescAppend(WC->PushedDestination, WC->CurRoom.name, NULL);
- }
- WC->need_regi = 0;
- display_reg(1);
- return;
- }
-
- /*
- * Do something reasonable if we somehow ended up requesting a pop without
- * having first done a push.
- */
- if ( (!WC) || (WC->PushedDestination == NULL) || (StrLength(WC->PushedDestination) == 0) ) {
- do_welcome();
- return;
- }
-
- /*
- * All righty then! We have a destination saved, so go there now.
- */
- if (verbose) {
- syslog(LOG_DEBUG, "Pop: %s", ChrPtr(WC->PushedDestination));
- }
- http_redirect(ChrPtr(WC->PushedDestination));
-}
-
-
-int ReadPostData(void) {
- int rc;
- int urlencoded_post = 0;
- StrBuf *content = NULL;
-
- urlencoded_post = (strncasecmp(ChrPtr(WC->Hdr->HR.ContentType), "application/x-www-form-urlencoded", 33) == 0) ;
-
- content = NewStrBufPlain(NULL, WC->Hdr->HR.ContentLength + 256);
-
- if (!urlencoded_post) {
- StrBufPrintf(content,
- "Content-type: %s\n"
- "Content-length: %ld\n\n",
- ChrPtr(WC->Hdr->HR.ContentType),
- WC->Hdr->HR.ContentLength
- );
- }
-
- /* Read the entire input data at once. */
- rc = client_read_to(WC->Hdr, content, WC->Hdr->HR.ContentLength, SLEEPING);
- if (rc < 0) {
- return rc;
- }
-
- if (urlencoded_post) {
- ParseURLParams(content);
- }
- else if (!strncasecmp(ChrPtr(WC->Hdr->HR.ContentType), "multipart", 9)) {
- char *Buf;
- char *BufEnd;
- long len;
-
- len = StrLength(content);
- Buf = SmashStrBuf(&content);
- BufEnd = Buf + len;
- mime_parser(Buf, BufEnd, *upload_handler, NULL, NULL, NULL, 0);
- free(Buf);
- }
- else if (WC->Hdr->HR.ContentLength > 0) {
- WC->upload = content;
- WC->upload_length = StrLength(WC->upload);
- content = NULL;
- }
- FreeStrBuf(&content);
- return 1;
-}
-
-
-int Conditional_REST_DEPTH(StrBuf *Target, WCTemplputParams *TP)
-{
- long Depth, IsDepth;
- long offset = 0;
-
- if (WC->Hdr->HR.Handler != NULL)
- offset ++;
- Depth = GetTemplateTokenNumber(Target, TP, 2, 0);
- IsDepth = GetCount(WC->Directory) + offset;
-
-// LogTemplateError(Target, "bla", 1, TP, "REST_DEPTH: %ld : %ld\n", Depth, IsDepth);
- if (Depth < 0) {
- Depth = -Depth;
- return IsDepth > Depth;
- }
- else
- return Depth == IsDepth;
-}
-
-
-
-/*
- * Entry point for WebCit transaction
- */
-void session_loop(void)
-{
- int xhttp;
- StrBuf *Buf;
-
- /*
- * 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.
- */
- WC->upload_length = 0;
- WC->upload = NULL;
- WC->Hdr->nWildfireHeaders = 0;
-
- if (WC->Hdr->HR.ContentLength > 0) {
- if (ReadPostData() < 0) {
- return;
- }
- }
-
- Buf = NewStrBuf();
- WC->trailing_javascript = NewStrBuf();
-
- /* Convert base64-encoded URL's back to plain text */
- if (!strncmp(ChrPtr(WC->Hdr->this_page), "/B64", 4)) {
- StrBufCutLeft(WC->Hdr->this_page, 4);
- StrBufDecodeBase64(WC->Hdr->this_page);
- http_redirect(ChrPtr(WC->Hdr->this_page));
- goto SKIP_ALL_THIS_CRAP;
- }
-
- /* If there are variables in the URL, we must grab them now */
- if (WC->Hdr->PlainArgs != NULL) {
- ParseURLParams(WC->Hdr->PlainArgs);
- }
-
- /* If the client sent a nonce that is incorrect, kill the request. */
- if (havebstr("nonce")) {
- if (verbose) {
- syslog(LOG_DEBUG, "Comparing supplied nonce %s to session nonce %d", bstr("nonce"), WC->nonce);
- }
- if (ibstr("nonce") != WC->nonce) {
- syslog(LOG_INFO, "Ignoring request with mismatched nonce.");
- hprintf("HTTP/1.1 404 Security check failed\r\n");
- hprintf("Content-Type: text/plain\r\n");
- begin_burst();
- wc_printf("Security check failed.\r\n");
- end_burst();
- goto SKIP_ALL_THIS_CRAP;
- }
- }
-
- /*
- * If we're not connected to a Citadel server, try to hook up the connection now.
- */
- if (!WC->connected) {
- if (GetConnected()) {
- hprintf("HTTP/1.1 503 Service Unavailable\r\n");
- hprintf("Content-Type: text/html\r\n");
- begin_burst();
- wc_printf("<html><head><title>503 Service Unavailable</title></head><body>\n");
- wc_printf(_("This program was unable to connect or stay "
- "connected to the Citadel server. Please report "
- "this problem to your system administrator.")
- );
- wc_printf("<br>");
- wc_printf("<a href=\"http://www.citadel.org/doku.php/"
- "faq:generalquestions:webcit_unable_to_connect\">%s</a>",
- _("Read More...")
- );
- wc_printf("</body></html>\n");
- end_burst();
- goto SKIP_ALL_THIS_CRAP;
- }
- }
-
- /*
- * If we're not logged in, but we have authentication data (either from
- * a cookie or from http-auth), try logging in to Citadel using that.
- */
- if ( (!WC->logged_in)
- && (StrLength(WC->Hdr->c_username) > 0)
- && (StrLength(WC->Hdr->c_password) > 0)
- ) {
- long Status;
-
- FlushStrBuf(Buf);
- serv_printf("USER %s", ChrPtr(WC->Hdr->c_username));
- StrBuf_ServGetln(Buf);
- if (GetServerStatus(Buf, &Status) == 3) {
- serv_printf("PASS %s", ChrPtr(WC->Hdr->c_password));
- StrBuf_ServGetln(Buf);
- if (GetServerStatus(Buf, NULL) == 2) {
- become_logged_in(WC->Hdr->c_username, WC->Hdr->c_password, Buf);
- }
- else {
- /* Should only display when password is wrong */
- WC->ImportantMsg = NewStrBufPlain(ChrPtr(Buf) + 4, StrLength(Buf) - 4);
- authorization_required();
- FreeStrBuf(&Buf);
- goto SKIP_ALL_THIS_CRAP;
- }
- }
- else if (Status == 541) {
- WC->logged_in = 1;
- }
- }
-
- xhttp = (WC->Hdr->HR.eReqType != eGET) &&
- (WC->Hdr->HR.eReqType != ePOST) &&
- (WC->Hdr->HR.eReqType != eHEAD);
-
- /*
- * If a 'go' (or 'gotofirst') parameter has been specified, attempt to goto that room
- * prior to doing anything else.
- */
- if (havebstr("go")) {
- int ret;
- if (verbose)
- syslog(LOG_DEBUG, "Explicit room selection: %s", bstr("go"));
- ret = gotoroom(sbstr("go")); /* do quietly to avoid session output! */
- if ((ret/100) != 2) {
- if (verbose)
- syslog(LOG_DEBUG, "Unable to change to [%s]; Reason: %d", bstr("go"), ret);
- }
- }
- else if (havebstr("gotofirst")) {
- int ret;
- if (verbose)
- syslog(LOG_DEBUG, "Explicit room selection: %s", bstr("gotofirst"));
- ret = gotoroom(sbstr("gotofirst")); /* do quietly to avoid session output! */
- if ((ret/100) != 2) {
- syslog(LOG_INFO, "Unable to change to [%s]; Reason: %d", bstr("gotofirst"), ret);
- }
- }
-
- /*
- * If we aren't in any room yet, but we have cookie data telling us where we're
- * supposed to be, and 'go' was not specified, then go there.
- */
- else if ( (StrLength(WC->CurRoom.name) == 0) && ( (StrLength(WC->Hdr->c_roomname) > 0) )) {
- int ret;
-
- if (verbose)
- syslog(LOG_DEBUG, "We are in '%s' but cookie indicates '%s', going there...",
- ChrPtr(WC->CurRoom.name),
- ChrPtr(WC->Hdr->c_roomname)
- );
- ret = gotoroom(WC->Hdr->c_roomname); /* do quietly to avoid session output! */
- if ((ret/100) != 2) {
- if (verbose)
- syslog(LOG_DEBUG, "COOKIEGOTO: Unable to change to [%s]; Reason: %d",
- ChrPtr(WC->Hdr->c_roomname), ret);
- }
- }
-
- if (WC->Hdr->HR.Handler != NULL) {
- if ( (!WC->logged_in)
- && ((WC->Hdr->HR.Handler->Flags & ANONYMOUS) == 0)
- && (WC->serv_info != NULL)
- && (WC->serv_info->serv_supports_guest == 0)
- ) {
- display_login();
- }
- else {
- if ((WC->Hdr->HR.Handler->Flags & AJAX) != 0) {
- begin_ajax_response();
- }
- WC->Hdr->HR.Handler->F();
- if ((WC->Hdr->HR.Handler->Flags & AJAX) != 0) {
- end_ajax_response();
- }
- }
- }
- /* When all else fails, display the default landing page or a main menu. */
- else {
- /*
- * ordinary browser users get a nice login screen, DAV etc. requsets
- * are given a 401 so they can handle it appropriate.
- */
- if (!WC->logged_in) {
- if (xhttp) {
- authorization_required();
- }
- else {
- display_default_landing_page();
- }
- }
- /*
- * Toplevel dav requests? or just a flat browser request?
- */
- else {
- if (xhttp) {
- dav_main();
- }
- else {
- display_main_menu();
- }
- }
- }
-
-SKIP_ALL_THIS_CRAP:
- FreeStrBuf(&Buf);
- fflush(stdout);
-}
-
-
-
-/*
- * Display the appropriate landing page for this site.
- */
-void display_default_landing_page(void) {
- if (WC && WC->serv_info && WC->serv_info->serv_supports_guest) {
- /* default action */
-
- if (havebstr("go")) {
- if (verbose)
- syslog(LOG_DEBUG, "Explicit room selection: %s", bstr("go"));
- smart_goto(sbstr("go"));
- }
- else if (default_landing_page) {
- http_redirect(default_landing_page);
- }
- else {
- StrBuf *teh_lobby = NewStrBufPlain(HKEY("_BASEROOM_"));
- smart_goto(teh_lobby);
- FreeStrBuf(&teh_lobby);
- }
- }
- else {
- display_login();
- }
-}
-
-
-/*
- * Replacement for sleep() that uses select() in order to avoid SIGALRM
- */
-void sleeeeeeeeeep(int seconds)
-{
- struct timeval tv;
-
- tv.tv_sec = seconds;
- tv.tv_usec = 0;
- select(0, NULL, NULL, NULL, &tv);
-}
-
-int Conditional_IS_HTTPS(StrBuf *Target, WCTemplputParams *TP)
-{
- return is_https != 0;
-}
-
-void AppendImportantMessage(const char *pch, long len)
-{
-
- if (StrLength(WC->ImportantMsg) > 0) {
- StrBufAppendBufPlain(WC->ImportantMsg, HKEY("\n"), 0);
- }
-
- StrBufAppendBufPlain(WC->ImportantMsg, pch, len, 0);
-}
-
-int ConditionalImportantMesage(StrBuf *Target, WCTemplputParams *TP)
-{
- if (WC != NULL) {
- return (StrLength(WC->ImportantMsg) > 0);
- }
- else {
- return 0;
- }
-}
-
-void tmplput_importantmessage(StrBuf *Target, WCTemplputParams *TP)
-{
-
- if (WC != NULL) {
- if (StrLength(WC->ImportantMsg) > 0) {
- StrBufAppendTemplate(Target, TP, WC->ImportantMsg, 0);
- }
- }
-}
-
-void tmplput_trailing_javascript(StrBuf *Target, WCTemplputParams *TP)
-{
-
- if (WC != NULL) {
- StrBufAppendTemplate(Target, TP, WC->trailing_javascript, 0);
- }
-}
-
-void tmplput_csslocal(StrBuf *Target, WCTemplputParams *TP)
-{
- StrBufAppendBuf(Target,
- csslocal, 0);
-}
-
-void tmplput_packagestring(StrBuf *Target, WCTemplputParams *TP) {
- StrBufAppendBufPlain(Target, HKEY(PACKAGE_STRING), 0);
-}
-
-extern char static_local_dir[PATH_MAX];
-
-
-void
-InitModule_WEBCIT
-(void)
-{
- char dir[SIZ];
- WebcitAddUrlHandler(HKEY("blank"), "", 0, blank_page, ANONYMOUS|COOKIEUNNEEDED|ISSTATIC);
- WebcitAddUrlHandler(HKEY("landing"), "", 0, display_default_landing_page, ANONYMOUS|COOKIEUNNEEDED);
- WebcitAddUrlHandler(HKEY("do_template"), "", 0, url_do_template, ANONYMOUS);
- WebcitAddUrlHandler(HKEY("sslg"), "", 0, seconds_since_last_gexp, AJAX|LOGCHATTY);
- WebcitAddUrlHandler(HKEY("ajax_servcmd"), "", 0, ajax_servcmd, 0);
- WebcitAddUrlHandler(HKEY("webcit"), "", 0, blank_page, URLNAMESPACE);
- WebcitAddUrlHandler(HKEY("push"), "", 0, push_destination, AJAX);
- WebcitAddUrlHandler(HKEY("pop"), "", 0, pop_destination, 0);
-
- WebcitAddUrlHandler(HKEY("401"), "", 0, authorization_required, ANONYMOUS|COOKIEUNNEEDED);
- RegisterConditional("COND:IMPMSG", 0, ConditionalImportantMesage, CTX_NONE);
- RegisterConditional("COND:REST:DEPTH", 0, Conditional_REST_DEPTH, CTX_NONE);
- RegisterConditional("COND:IS_HTTPS", 0, Conditional_IS_HTTPS, CTX_NONE);
-
- RegisterNamespace("CSSLOCAL", 0, 0, tmplput_csslocal, NULL, CTX_NONE);
- RegisterNamespace("IMPORTANTMESSAGE", 0, 1, tmplput_importantmessage, NULL, CTX_NONE);
- RegisterNamespace("TRAILING_JAVASCRIPT", 0, 0, tmplput_trailing_javascript, NULL, CTX_NONE);
- RegisterNamespace("URL:DISPLAYNAME", 0, 1, tmplput_HANDLER_DISPLAYNAME, NULL, CTX_NONE);
- RegisterNamespace("PACKAGESTRING", 0, 1, tmplput_packagestring, NULL, CTX_NONE);
-
-
- snprintf(dir, SIZ, "%s/webcit.css", static_local_dir);
- if (!access(dir, R_OK)) {
- syslog(LOG_INFO, "Using local Stylesheet [%s]", dir);
- csslocal = NewStrBufPlain(HKEY("<link href=\"static.local/webcit.css\" rel=\"stylesheet\" type=\"text/css\" />"));
- }
- else
- syslog(LOG_INFO, "No Site-local Stylesheet [%s] installed.", dir);
-
-}
-
-void
-ServerStartModule_WEBCIT
-(void)
-{
- HandlerHash = NewHash(1, NULL);
-}
-
-
-void
-ServerShutdownModule_WEBCIT
-(void)
-{
- FreeStrBuf(&csslocal);
- DeleteHash(&HandlerHash);
-}
-
-
-
-void
-SessionNewModule_WEBCIT
-(wcsession *sess)
-{
- sess->ImportantMsg = NewStrBuf();
- sess->WBuf = NewStrBufPlain(NULL, SIZ * 4);
- sess->HBuf = NewStrBufPlain(NULL, SIZ / 4);
-}
-
-void
-SessionDetachModule_WEBCIT
-(wcsession *sess)
-{
- DeleteHash(&sess->Directory);
-
- FreeStrBuf(&sess->upload);
- sess->upload_length = 0;
-
- FreeStrBuf(&sess->trailing_javascript);
-
- if (StrLength(sess->WBuf) > SIZ * 30) /* Bigger than 120K? release. */
- {
- FreeStrBuf(&sess->WBuf);
- sess->WBuf = NewStrBuf();
- }
- else
- FlushStrBuf(sess->WBuf);
- FlushStrBuf(sess->HBuf);
- if (StrLength(sess->ImportantMsg) > 0) {
- FlushStrBuf(sess->ImportantMsg);
- }
-
-}
-
-void
-SessionDestroyModule_WEBCIT
-(wcsession *sess)
-{
- FreeStrBuf(&sess->WBuf);
- FreeStrBuf(&sess->HBuf);
- FreeStrBuf(&sess->ImportantMsg);
- FreeStrBuf(&sess->PushedDestination);
-}
-
projects / citadel.git / blobdiff