-const char jcc_rcs[] = "$Id: jcc.c,v 1.5 2001/05/22 18:46:04 oes Exp $";
+const char jcc_rcs[] = "$Id: jcc.c,v 1.12 2001/05/27 22:17:04 oes Exp $";
/*********************************************************************
*
* File : $Source: /cvsroot/ijbswa/current/jcc.c,v $
*
* Revisions :
* $Log: jcc.c,v $
+ * Revision 1.12 2001/05/27 22:17:04 oes
+ *
+ * - re_process_buffer no longer writes the modified buffer
+ * to the client, which was very ugly. It now returns the
+ * buffer, which it is then written by chat.
+ *
+ * - content_length now adjusts the Content-Length: header
+ * for modified documents rather than crunch()ing it.
+ * (Length info in csp->content_length, which is 0 for
+ * unmodified documents)
+ *
+ * - For this to work, sed() is called twice when filtering.
+ *
+ * Revision 1.11 2001/05/26 17:27:53 jongfoster
+ * Added support for CLF and fixed LOG_LEVEL_LOG.
+ * Also did CRLF->LF fix of my previous patch.
+ *
+ * Revision 1.10 2001/05/26 15:26:15 jongfoster
+ * ACL feature now provides more security by immediately dropping
+ * connections from untrusted hosts.
+ *
+ * Revision 1.9 2001/05/26 00:28:36 jongfoster
+ * Automatic reloading of config file.
+ * Removed obsolete SIGHUP support (Unix) and Reload menu option (Win32).
+ * Most of the global variables have been moved to a new
+ * struct configuration_spec, accessed through csp->config->globalname
+ * Most of the globals remaining are used by the Win32 GUI.
+ *
+ * Revision 1.8 2001/05/25 22:43:18 jongfoster
+ * Fixing minor memory leak and buffer overflow.
+ *
+ * Revision 1.7 2001/05/25 22:34:30 jongfoster
+ * Hard tabs->Spaces
+ *
+ * Revision 1.6 2001/05/23 00:13:58 joergs
+ * AmigaOS support fixed.
+ *
* Revision 1.5 2001/05/22 18:46:04 oes
*
* - Enabled filtering banners by size rather than URL
*********************************************************************/
static void chat(struct client_state *csp)
{
-/* This next line is a little ugly, but it simplifies the if statement below. */
-/* Basically if TOGGLE, then we want the if to test "csp->toggled_on", else we don't */
+/*
+ * This next lines are a little ugly, but they simplifies the if statements below.
+ * Basically if TOGGLE, then we want the if to test "csp->toggled_on", else we don't
+ * And if FORCE_LOAD, then we want the if to test "csp->toggled_on", else we don't
+ */
#ifdef TOGGLE
-# define IS_TOGGLED_ON csp->toggled_on &&
+# define IS_TOGGLED_ON_AND (csp->toggled_on) &&
#else /* ifndef TOGGLE */
-# define IS_TOGGLED_ON
+# define IS_TOGGLED_ON_AND
#endif /* ndef TOGGLE */
+#ifdef FORCE_LOAD
+# define IS_NOT_FORCED_AND (!csp->force) &&
+#else /* ifndef TOGGLE */
+# define IS_NOT_FORCED_AND
+#endif /* def FORCE_LOAD */
-/* This next line is a little ugly, but it simplifies the if statement below. */
-/* Basically if TRUST_FILES, then we want the if to call "trust_url", else we don't */
-#ifdef TRUST_FILES
-# define IS_TRUSTED_URL (p = trust_url(http, csp)) ||
-#else /* ifndef TRUST_FILES */
-# define IS_TRUSTED_URL
-#endif /* ndef TRUST_FILES */
+#define IS_ENABLED_AND IS_TOGGLED_ON_AND IS_NOT_FORCED_AND
char buf[BUFSIZ], *hdr, *p, *req;
char *err = NULL;
char *eno;
fd_set rfds;
- int n, maxfd, server_body, ms_iis5_hack = 0;
+ int n, maxfd, server_body;
+ int ms_iis5_hack = 0;
+ int byte_count = 0;
const struct gateway *gw;
struct http_request *http;
#ifdef KILLPOPUPS
#ifdef FORCE_LOAD
/* If this request contains the FORCE_PREFIX,
- * better get rid of it now and set the force flag --oes
+ * better get rid of it now and set the force flag --oes
*/
- if(strstr(req, FORCE_PREFIX))
+ if (strstr(req, FORCE_PREFIX))
{
- strclean(req, FORCE_PREFIX);
- log_error(LOG_LEVEL_FORCE, "Enforcing request \"%s\".\n", req);
- csp->force = 1;
- }
+ strclean(req, FORCE_PREFIX);
+ log_error(LOG_LEVEL_FORCE, "Enforcing request \"%s\".\n", req);
+ csp->force = 1;
+ }
else
{
- csp->force = 0;
- }
+ csp->force = 0;
+ }
#endif /* def FORCE_LOAD */
parse_http_request(req, http, csp);
{
strcpy(buf, CHEADER);
write_socket(csp->cfd, buf, strlen(buf));
+
+ log_error(LOG_LEVEL_CLF, "%s - - [%T] \" \" 400 0", csp->ip_addr_str);
+
return;
}
if (!csp->toggled_on)
{
/* Most compatible set of permissions */
- csp->permissions = PERMIT_COOKIE_SET | PERMIT_COOKIE_READ | PERMIT_POPUPS;
+ csp->permissions = PERMIT_MOST_COMPATIBLE;
}
else
+#endif /* ndef TOGGLE */
{
csp->permissions = url_permissions(http, csp);
}
-#else /* ifndef TOGGLE */
- csp->permissions = url_permissions(http, csp);
-#endif /* ndef TOGGLE */
#ifdef KILLPOPUPS
block_popups = ((csp->permissions & PERMIT_POPUPS) == 0);
destroy_list(csp->headers);
- /* Check the request against all rules, unless
- * we're toggled off or in force mode.
+ /* Check the request against all rules, unless
+ * we're toggled off or in force mode.
*/
- if (IS_TOGGLED_ON
-#ifdef FORCE_LOAD
- (!csp->force) &&
-#endif /* def FORCE_LOAD */
- ( (p = intercept_url(http, csp)) ||
- IS_TRUSTED_URL
- (p = block_url(http, csp))
+ if (intercept_url(http, csp))
+ {
+ /*
+ * The interceptor will write out the data.
+ * We don't need to do anything else
+ */
+
+#ifdef STATISTICS
+ csp->rejected = 1;
+#endif /* def STATISTICS */
+
+ freez(hdr);
+ return;
+ }
+
#ifdef FAST_REDIRECTS
- || (fast_redirects && (p = redirect_url(http, csp)))
+ else if (IS_ENABLED_AND
+ ((csp->permissions & PERMIT_FAST_REDIRECTS) != 0) &&
+ (p = redirect_url(http, csp)))
+ {
+ /* This must be blocked as HTML */
+#ifdef STATISTICS
+ csp->rejected = 1;
+#endif /* def STATISTICS */
+
+ log_error(LOG_LEVEL_GPC, "%s%s crunch!", http->hostport, http->path);
+
+ log_error(LOG_LEVEL_CLF, "%s - - [%T] \"%s\" 200 3",
+ csp->ip_addr_str, http->cmd);
+
+ /* Send HTML redirection result */
+ write_socket(csp->cfd, p, strlen(p));
+
+ freez(p);
+ freez(hdr);
+ return;
+ }
#endif /* def FAST_REDIRECTS */
- ))
+
+ else if (IS_ENABLED_AND (
+#ifdef TRUST_FILES
+ (p = trust_url(http, csp)) ||
+#endif /* def TRUST_FILES */
+ (p = block_url(http, csp)) ))
{
+ /* Block as HTML or image */
#ifdef STATISTICS
csp->rejected = 1;
#endif /* def STATISTICS */
log_error(LOG_LEVEL_GPC, "%s%s crunch!", http->hostport, http->path);
-#if defined(DETECT_MSIE_IMAGES) || defined(USE_IMAGE_LIST)
+ log_error(LOG_LEVEL_CLF, "%s - - [%T] \"%s\" 200 1",
+ csp->ip_addr_str, http->cmd);
+
+#ifdef IMAGE_BLOCKING
/* Block as image? */
- if ( (tinygif > 0) && block_imageurl(http, csp) )
+ if ( (csp->config->tinygif > 0) && block_imageurl(http, csp) )
{
/* Send "blocked" image */
log_error(LOG_LEVEL_GPC, "%s%s image crunch!",
http->hostport, http->path);
- if ((tinygif == 2) || strstr(http->path, "ijb-send-banner"))
+ if (csp->config->tinygif == 1)
{
- write_socket(csp->cfd, JBGIF, sizeof(JBGIF)-1);
+ write_socket(csp->cfd, BLANKGIF, sizeof(BLANKGIF)-1);
}
- if (tinygif == 1)
+ else if (csp->config->tinygif == 2)
{
- write_socket(csp->cfd, BLANKGIF, sizeof(BLANKGIF)-1);
+ write_socket(csp->cfd, JBGIF, sizeof(JBGIF)-1);
}
- else if ((tinygif == 3) && (tinygifurl))
+ else if ((csp->config->tinygif == 3) && (csp->config->tinygifurl))
{
- p = (char *)malloc(strlen(HTTP_REDIRECT_TEMPLATE) + strlen(tinygifurl));
- sprintf(p, HTTP_REDIRECT_TEMPLATE, tinygifurl);
+ freez(p);
+ p = (char *)malloc(sizeof(HTTP_REDIRECT_TEMPLATE)
+ + strlen(csp->config->tinygifurl));
+ sprintf(p, HTTP_REDIRECT_TEMPLATE, csp->config->tinygifurl);
write_socket(csp->cfd, p, strlen(p));
}
else
{
+ /* Should never happen */
write_socket(csp->cfd, JBGIF, sizeof(JBGIF)-1);
}
}
else
-#endif /* defined(DETECT_MSIE_IMAGES) || defined(USE_IMAGE_LIST) */
+#endif /* def IMAGE_BLOCKING */
/* Block as HTML */
{
/* Send HTML "blocked" message, interception, or redirection result */
write_socket(csp->cfd, p, strlen(p));
}
- log_error(LOG_LEVEL_LOG, "%s", p);
-
freez(p);
freez(hdr);
return;
{
err = zalloc(strlen(CNXDOM) + strlen(http->host));
sprintf(err, CNXDOM, http->host);
+
+ log_error(LOG_LEVEL_CLF, "%s - - [%T] \"%s\" 404 0",
+ csp->ip_addr_str, http->cmd);
}
else
{
eno = safe_strerror(errno);
err = zalloc(strlen(CFAIL) + strlen(http->hostport) + strlen(eno));
sprintf(err, CFAIL, http->hostport, eno);
+
+ log_error(LOG_LEVEL_CLF, "%s - - [%T] \"%s\" 503 0",
+ csp->ip_addr_str, http->cmd);
}
write_socket(csp->cfd, err, strlen(err));
- log_error(LOG_LEVEL_LOG, err);
-
freez(err);
freez(hdr);
return;
sprintf(err, CFAIL, http->hostport, eno);
write_socket(csp->cfd, err, strlen(err));
+ log_error(LOG_LEVEL_CLF, "%s - - [%T] \"%s\" 503 0",
+ csp->ip_addr_str, http->cmd);
+
freez(err);
freez(hdr);
return;
* so just send the "connect succeeded" message to the
* client, flush the rest, and get out of the way.
*/
+ log_error(LOG_LEVEL_CLF, "%s - - [%T] \"%s\" 200 2\n",
+ csp->ip_addr_str, http->cmd);
+
if (write_socket(csp->cfd, CSUCCEED, sizeof(CSUCCEED)-1) < 0)
{
freez(hdr);
{
n = read_socket(csp->cfd, buf, sizeof(buf));
- if (n <= 0) break; /* "game over, man" */
+ if (n <= 0)
+ {
+ break; /* "game over, man" */
+ }
if (write_socket(csp->sfd, buf, n) != n)
{
eno = safe_strerror(errno);
sprintf(buf, CFAIL, http->hostport, eno);
freez(eno);
+
+ log_error(LOG_LEVEL_CLF, "%s - - [%T] \"%s\" 503 0",
+ csp->ip_addr_str, http->cmd);
+
write_socket(csp->cfd, buf, strlen(buf));
return;
}
#ifdef PCRS
if (filtering)
{
- re_process_buffer(csp);
+ p = re_process_buffer(csp);
+ hdr = sed(server_patterns, add_server_headers, csp);
+ n = strlen(hdr);
+ if ((write_socket(csp->cfd, hdr, n) != n)
+ || (write_socket(csp->cfd, p, csp->content_length) != csp->content_length))
+ {
+ log_error(LOG_LEVEL_CONNECT, "write modified content to client failed: %E");
+ return;
+ }
+ freez(hdr);
+ freez(p);
}
#endif /* def PCRS */
break; /* "game over, man" */
return;
}
}
+ byte_count += n;
continue;
}
else
if (csp->is_text && /* It's a text / * MIME-Type */
!http->ssl && /* We talk plaintext */
- block_popups)
+ block_popups) /* Policy allows */
{
block_popups_now = 1;
}
#endif /* def PCRS */
-
- if ((write_socket(csp->cfd, hdr, n) != n)
- || (NOT_FILTERING_AND (flush_socket(csp->cfd, csp) < 0)))
+ if (NOT_FILTERING_AND ((write_socket(csp->cfd, hdr, n) != n)
+ || (n = flush_socket(csp->cfd, csp) < 0)))
{
log_error(LOG_LEVEL_CONNECT, "write header to client failed: %E");
return;
}
+ NOT_FILTERING_AND (byte_count += n);
+
/* we're finished with the server's header */
freez(hdr);
return; /* huh? we should never get here */
}
-
+ log_error(LOG_LEVEL_CLF, "%s - - [%T] \"%s\" 200 %d",
+ csp->ip_addr_str, http->cmd, byte_count);
}
configfile = argv[1];
}
- remove_all_loaders();
- memset( proxy_args, 0, sizeof( proxy_args ) );
files->next = NULL;
- load_config( 0 );
-
- /*
- * Since load_config acts as a signal handler too, it returns
- * its status in configret. Check it for an error in loading.
- */
- if ( 0 != configret )
- {
- /* load config failed! Exit with error. */
- return( 1 );
- }
-
#ifdef _WIN32
InitWin32();
#endif
#ifndef _WIN32
signal(SIGPIPE, SIG_IGN);
signal(SIGCHLD, SIG_IGN);
- signal(SIGHUP, load_config);
#else /* ifdef _WIN32 */
# ifdef _WIN_CONSOLE
{
struct client_state *csp = NULL;
int bfd;
+ struct configuration_spec * config;
+
+ config = load_config();
log_error(LOG_LEVEL_CONNECT, "bind (%s, %d)",
- haddr ? haddr : "INADDR_ANY", hport);
+ config->haddr ? config->haddr : "INADDR_ANY", config->hport);
- bfd = bind_port(haddr, hport);
- config_changed = 0;
+ bfd = bind_port(config->haddr, config->hport);
if (bfd < 0)
{
log_error(LOG_LEVEL_FATAL, "can't bind %s:%d: %E "
"- There may be another junkbuster or some other "
"proxy running on port %d",
- (NULL != haddr) ? haddr : "INADDR_ANY", hport, hport
+ (NULL != config->haddr) ? config->haddr : "INADDR_ANY",
+ config->hport, config->hport
);
/* shouldn't get here */
return;
}
+ config->need_bind = 0;
+
while (FOREVER)
{
#endif /* !defined(_WIN32) && !defined(__BEOS__) && !defined(AMIGA) */
sweep();
- if ( NULL == (csp = (struct client_state *) malloc(sizeof(*csp))) )
+ if ( NULL == (csp = (struct client_state *) zalloc(sizeof(*csp))) )
{
- log_error(LOG_LEVEL_ERROR, "malloc(%d) for csp failed: %E", sizeof(*csp));
+ log_error(LOG_LEVEL_FATAL, "malloc(%d) for csp failed: %E", sizeof(*csp));
continue;
}
csp->active = 1;
csp->sfd = -1;
- if ( config_changed )
+ csp->config = config = load_config();
+
+ if ( config->need_bind )
{
/*
* Since we were listening to the "old port", we will not see
* request. This should not be a so common of an operation
* that this will hurt people's feelings.
*/
+
close_socket(bfd);
log_error(LOG_LEVEL_CONNECT, "bind (%s, %d)",
- haddr ? haddr : "INADDR_ANY", hport);
- bfd = bind_port(haddr, hport);
+ config->haddr ? config->haddr : "INADDR_ANY", config->hport);
+ bfd = bind_port(config->haddr, config->hport);
+
+ if (bfd < 0)
+ {
+ log_error(LOG_LEVEL_FATAL, "can't bind %s:%d: %E "
+ "- There may be another junkbuster or some other "
+ "proxy running on port %d",
+ (NULL != config->haddr) ? config->haddr : "INADDR_ANY",
+ config->hport, config->hport
+ );
+ /* shouldn't get here */
+ return;
+ }
- config_changed = 0;
+ config->need_bind = 0;
}
log_error(LOG_LEVEL_CONNECT, "accept connection ... ");
exit(1);
}
#endif
+ freez(csp);
continue;
}
else
csp->toggled_on = g_bToggleIJB;
#endif
- /* add it to the list of clients */
- csp->next = clients->next;
- clients->next = csp;
-
if (run_loader(csp))
{
log_error(LOG_LEVEL_FATAL, "a loader failed - must exit");
/* Never get here - LOG_LEVEL_FATAL causes program exit */
}
- if (multi_threaded)
+ if (block_acl(NULL,csp))
+ {
+ log_error(LOG_LEVEL_CONNECT, "Connection dropped due to ACL");
+ close_socket(csp->cfd);
+ freez(csp);
+ continue;
+ }
+
+ /* add it to the list of clients */
+ csp->next = clients->next;
+ clients->next = csp;
+
+ if (config->multi_threaded)
{
int child_id;
projects / privoxy.git / blobdiff