#ifndef _PROJECT_H
#define _PROJECT_H
-#define PROJECT_H_VERSION "$Id: project.h,v 1.14 2001/06/03 11:03:48 oes Exp $"
+#define PROJECT_H_VERSION "$Id: project.h,v 1.22 2001/07/15 17:51:41 jongfoster Exp $"
/*********************************************************************
*
* File : $Source: /cvsroot/ijbswa/current/project.h,v $
*
* Revisions :
* $Log: project.h,v $
- * Revision 1.14 2001/06/03 11:03:48 oes
- * Makefile/in
- *
- * introduced cgi.c
- *
- * actions.c:
- *
- * adapted to new enlist_unique arg format
- *
- * conf loadcfg.c
- *
- * introduced confdir option
- *
- * filters.c filtrers.h
- *
- * extracted-CGI relevant stuff
- *
- * jbsockets.c
- *
- * filled comment
- *
- * jcc.c
- *
- * support for new cgi mechansim
- *
- * list.c list.h
+ * Revision 1.22 2001/07/15 17:51:41 jongfoster
+ * Renaming #define STATIC to STATIC_PCRE
+ *
+ * Revision 1.21 2001/07/13 14:03:19 oes
+ * - Reorganized regex header inclusion and #defines to
+ * comply to the scheme in configure.in
+ * - Added csp->content_type and its CT_* keys
+ * - Added ACTION_DEANIMATE
+ * - Removed all #ifdef PCRS
+ *
+ * Revision 1.20 2001/06/29 21:45:41 oes
+ * Indentation, CRLF->LF, Tab-> Space
+ *
+ * Revision 1.19 2001/06/29 13:33:36 oes
+ * - Improved comments
+ * - Introduced http_request.host_ip_addr_str
+ * - Introduced http_response.head_length
+ * - Introduced config.my_ip_addr_str, config.my_hostname,
+ * config.admin_address and config.proxy_info_url
+ * - Removed config.proxy_args_header and config.proxy_args_trailer,
+ * renamed config.proxy_args_invocation to config.proxy_args
+ * - Removed HTML snipplets and GIFs
+ * - Removed logentry from cancelled commit
+ *
+ * Revision 1.18 2001/06/09 10:57:39 jongfoster
+ * Adding definition of BUFFER_SIZE.
+ * Changing struct cgi_dispatcher to use "const" strings.
+ *
+ * Revision 1.17 2001/06/07 23:15:09 jongfoster
+ * Merging ACL and forward files into config file.
+ * Moving struct gateway members into struct forward_spec
+ * Removing config->proxy_args_gateways
+ * Cosmetic: Adding a few comments
+ *
+ * Revision 1.16 2001/06/04 18:31:58 swa
+ * files are now prefixed with either `confdir' or `logdir'.
+ * `make redhat-dist' replaces both entries confdir and logdir
+ * with redhat values
+ *
+ * Revision 1.15 2001/06/04 11:28:53 swa
+ * redirect did not work due to missing /
*
- * functions for new list type: "map"
- * extended enlist_unique
- *
- * miscutil.c .h
- * introduced bindup()
- *
- * parsers.c parsers.h
- *
- * deleted const struct interceptors
- *
- * pcrs.c
- * added FIXME
- *
- * project.h
- *
- * added struct map
- * added struct http_response
- * changes struct interceptors to struct cgi_dispatcher
+ * Revision 1.14 2001/06/03 11:03:48 oes
+ * Added struct map,
+ * added struct http_response,
+ * changed struct interceptors to struct cgi_dispatcher,
* moved HTML stuff to cgi.h
*
- * re_filterfile:
- *
- * changed
- *
- * showargs.c
- * NO TIME LEFT
- *
* Revision 1.13 2001/06/01 20:05:36 jongfoster
* Support for +image-blocker{}: added ACTION_IMAGE_BLOCKER
* constant, and removed csp->tinygif.
/*
* Include appropriate regular expression libraries.
- *
- * PCRS ==> Include pcre
- * REGEX && PCRE ==> Include pcre and pcreposix
- * REGEX && !PCRE ==> Include gnu_regex
- *
- * STATIC ==> Use #include "pcre.h" (compiling at same time)
- * !STATIC ==> Use #include <pcre.h> (System library)
- *
+ * Note that pcrs and pcre (native) are needed for cgi
+ * and are included anyway.
*/
-#if (defined(REGEX) && defined(PCRE)) || defined(PCRS)
-# ifdef STATIC
-# include "pcre.h"
-# else
-# include <pcre.h>
-# endif
-#endif /* (defined(REGEX) && defined(PCRE)) || defined(PCRS) */
-#if defined(REGEX) && defined(PCRE)
-# ifdef STATIC
+#if defined(REGEX_PCRE) || defined (REGEX_GNU)
+# define REGEX
+#endif /* defined(REGEX_PCRE) || defined (REGEX_GNU) */
+
+#ifdef STATIC_PCRE
+# include "pcre.h"
+#else
+# include <pcre.h>
+#endif
+
+#ifdef STATIC_PCRS
+# include "pcrs.h"
+#else
+# include <pcrs.h>
+#endif
+
+#if defined(REGEX_PCRE)
+# ifdef STATIC_PCRE
# include "pcreposix.h"
# else
# include <pcreposix.h>
# endif
-#endif /* defined(REGEX) && defined(PCRE) */
+#endif /* defined(REGEX_PCRE) */
-#if defined(REGEX) && !defined(PCRE)
+#if defined(REGEX_GNU)
# include "gnu_regex.h"
#endif
-#ifdef PCRS
-#include "pcrs.h"
-#endif /* def PCRS */
-
#ifdef AMIGA
#include "amiga.h"
#endif /* def AMIGA */
extern "C" {
#endif
+#define freez(X) if(X) free(X); X = NULL
+
+#define BUFFER_SIZE 5000
+
#define FOREVER 1
/* Default IP and port to listen on */
#define HADDR_PORT 8000
-/* Need this for struct gateway */
-struct client_state;
-
/* Need this for struct client_state */
struct configuration_spec;
struct map *next;
};
-
-/* Generic linked list of strings */
-struct list_share /* FIXME: Why not separate entries and header? */
-{
- const char * str; /* valid in an entry */
- struct list_share *last; /* valid in header */
- struct list_share *next;
-};
-
struct http_request
{
char *cmd;
char *gpc;
char *host;
+ char *host_ip_addr_str; /* NULL before connect_to() */
int port;
char *path;
char *ver;
int ssl;
};
-/* CGI or blocker generated response */
+/* Response generated by CGI, blocker, or error handler */
struct http_response
{
- char *status; /* HTTP status */
+ char *status; /* HTTP status (string)*/
struct list headers[1]; /* List of header lines */
- int content_length; /* Length of body, REQUIRED if binary body*/
char *head; /* Formatted http response head */
+ int head_length; /* Length of http response head */
char *body; /* HTTP document body */
+ int content_length; /* Length of body, REQUIRED if binary body*/
};
-
-struct gateway
-{
- /* generic attributes */
- char *name;
- int (*conn)(const struct gateway *, struct http_request *, struct client_state *);
- int type;
-
- /* domain specific attributes */
- char *gateway_host;
- int gateway_port;
-
- char *forward_host;
- int forward_port;
-};
-
/* A URL pattern */
struct url_spec
{
- char *spec;
- char *domain; /* fqdn */
- char *dbuf;
- char **dvec; /* Domain ptr vector */
- int dcnt; /* How many domains in fqdn? */
- int unanchored; /* bitmap 0: left, 1: right */
-
- char *path;
- int pathlen;
- int port;
+ char *spec; /* The string which was parsed to produce this */
+ /* url_spec. Used for debugging or display only. */
+
+ /* Hostname matching: */
+ char *domain; /* Fully qalified domain name (FQDN) pattern. */
+ /* May contain "*". */
+ char *dbuf; /* Buffer with '\0'-delimited fqdn */
+ char **dvec; /* Domain ptr vector into dbuf */
+ int dcnt; /* How many domains in fqdn? */
+ int unanchored; /* Bitmap - flags are ANCHOR_LEFT and ANCHOR_RIGHT */
+
+ /* Port matching: */
+ int port; /* The port number, or 0 to match all ports. */
+
+ /* Path matching: */
+ char *path; /* The path prefix (if not using regex), or source */
+ /* for the regex. */
+ int pathlen; /* ==strlen(path). Needed for prefix matching. */
#ifdef REGEX
- regex_t *preg;
+ regex_t *preg; /* Regex for matching path part */
#endif
};
#define IOB_PEEK(CSP) ((CSP->iob->cur > CSP->iob->eod) ? (CSP->iob->eod - CSP->iob->cur) : 0)
#define IOB_RESET(CSP) if(CSP->iob->buf) free(CSP->iob->buf); memset(CSP->iob, '\0', sizeof(CSP->iob));
-
+/* Keys for csp->content_type */
+#define CT_TEXT 0x01U
+#define CT_GIF 0x02U
#define ACTION_MASK_ALL (~0U)
-#define ACTION_MOST_COMPATIBLE 0U
+#define ACTION_MOST_COMPATIBLE 0x0000U
#define ACTION_BLOCK 0x0001U
+#define ACTION_DEANIMATE 0x2000U
#define ACTION_FAST_REDIRECTS 0x0002U
#define ACTION_FILTER 0x0004U
#define ACTION_HIDE_FORWARDED 0x0008U
#define ACTION_NO_POPUPS 0x0800U
#define ACTION_VANILLA_WAFER 0x1000U
-#define ACTION_STRING_FROM 0
-#define ACTION_STRING_IMAGE_BLOCKER 1
-#define ACTION_STRING_REFERER 2
-#define ACTION_STRING_USER_AGENT 3
-#define ACTION_STRING_COUNT 4
+#define ACTION_STRING_DEANIMATE 0
+#define ACTION_STRING_FROM 1
+#define ACTION_STRING_IMAGE_BLOCKER 2
+#define ACTION_STRING_REFERER 3
+#define ACTION_STRING_USER_AGENT 4
+#define ACTION_STRING_COUNT 5
+
#define ACTION_MULTI_ADD_HEADER 0
#define ACTION_MULTI_WAFER 1
#define ACTION_MULTI_COUNT 2
-
+/*
+ * This structure contains a list of actions to apply to a URL.
+ * It only contains positive instructions - no "-" options.
+ * It is not used to store the actions list itself, only for
+ * url_actions() to return the current values.
+ */
struct current_action_spec
{
unsigned flags; /* a bit set to "1" = add action */
struct list multi[ACTION_MULTI_COUNT][1];
};
+
+/*
+ * This structure contains a set of changes to actions.
+ * It can contain both positive and negative instructions.
+ * It is used to store an entry in the actions list.
+ */
struct action_spec
{
unsigned mask; /* a bit set to "0" = remove action */
struct list multi_add[ACTION_MULTI_COUNT][1];
};
+/*
+ * This structure is used to store the actions list.
+ *
+ * It contains a URL pattern, and the chages to the actions.
+ * It is a linked list.
+ */
struct url_actions
{
struct url_spec url[1];
/* The proxy's configuration */
struct configuration_spec * config;
-
/* The actions to perform on the current request */
struct current_action_spec action[1];
-
/* socket to talk to client (web browser) */
int cfd;
char *ip_addr_str;
long ip_addr_long;
+
+ /* Our IP address and hostname, i.e. the IP address that
+ the client used to reach us, and the associated hostname,
+ both as strings
+ */
+ char *my_ip_addr_str;
+ char *my_hostname;
+
#ifdef TRUST_FILES
/* The referer in this request, if one was specified. */
char *referrer;
/* List of all cookies for this request */
struct list cookie_list[1];
-#if defined(PCRS) || defined(KILLPOPUPS)
- /* Nonzero if this has a text MIME type */
- int is_text;
-#endif /* defined(PCRS) || defined(KILLPOPUPS) */
+ /* MIME-Type bitmap, see CT_* above */
+ unsigned char content_type;
/* The "X-Forwarded-For:" header sent by the client */
char *x_forwarded;
int active;
/* files associated with this client */
- struct file_list *flist; /* forwardfile */
struct file_list *actions_list;
-
-#ifdef ACL_FILES
- struct file_list *alist; /* aclfile */
-#endif /* def ACL_FILES */
-
-#ifdef PCRS
- struct file_list *rlist; /* Perl re_filterfile */
- size_t content_length; /* Length after processing */
-#endif /* def PCRS */
+ struct file_list *rlist; /* pcrs job file */
+ size_t content_length; /* Length after content modification */
#ifdef TRUST_FILES
struct file_list *tlist; /* trustfile */
struct cgi_dispatcher
{
- char *name;
- int name_length;
- int (*handler)(struct client_state *csp, struct http_response *rsp, struct map *parameters);
- char *description;
+ const char *name;
+ int name_length;
+ int (*handler)(struct client_state *csp, struct http_response *rsp, struct map *parameters);
+ const char *description;
};
struct file_list
#endif /* def TRUST_FILES */
+#define SOCKS_NONE 0 /* Don't use a SOCKS server */
+#define SOCKS_4 40 /* original SOCKS 4 protocol */
+#define SOCKS_4A 41 /* as modified for hosts w/o external DNS */
+
struct forward_spec
{
struct url_spec url[1];
- struct gateway gw[1];
+
+ /* Connection type - must be a SOCKS_xxx constant */
+ int type;
+
+ /* SOCKS server */
+ char *gateway_host;
+ int gateway_port;
+
+ /* Parent HTTP proxy */
+ char *forward_host;
+ int forward_port;
+
+ /* For the linked list */
struct forward_spec *next;
};
-
-#ifdef PCRS
struct re_filterfile_spec
{
struct list patterns[1];
pcrs_job *joblist;
};
-#endif /* def PCRS */
-
#ifdef ACL_FILES
#define ACL_PERMIT 1 /* accept connection request */
#endif /* def ACL_FILES */
-/* Maximum number of loaders (actions, block, forward, acl...) */
+/* Maximum number of loaders (actions, re_filter, ...) */
#define NLOADERS 8
/*
const char *logfile;
const char *confdir;
+ const char *logdir;
const char *actions_file;
- const char *forwardfile;
-#ifdef ACL_FILES
- const char *aclfile;
-#endif /* def ACL_FILES */
+ /* The administrator's email address */
+ char *admin_address;
+
+ /* A URL with info on this proxy */
+ char *proxy_info_url;
-#ifdef PCRS
const char *re_filterfile;
-#endif /* def PCRS */
#ifdef JAR_FILES
const char * jarfile;
struct url_spec *trust_list[64];
#endif /* def TRUST_FILES */
- /* Various strings for show-proxy-args */
- char *proxy_args_header;
- char *proxy_args_invocation;
- char *proxy_args_gateways;
- char *proxy_args_trailer;
+#ifdef ACL_FILES
+ struct access_control_list *acl;
+#endif /* def ACL_FILES */
+
+ struct forward_spec *forward;
+
+ /* All options from the config file, HTML-formatted */
+ char *proxy_args;
/* the configuration file object. */
struct file_list *config_file_list;
#define SZ(X) (sizeof(X) / sizeof(*X))
-#define WHITEBG "<body bgcolor=\"#ffffff\" link=\"#000078\" alink=\"#ff0022\" vlink=\"#787878\">\n"
-#define BODY "<body bgcolor=\"#f8f8f0\" link=\"#000078\" alink=\"#ff0022\" vlink=\"#787878\">\n"
-#define BANNER "<strong>Internet J<small>UNK<i><font color=\"red\">BUSTER</font></i></small></strong>"
-
#ifdef FORCE_LOAD
#define FORCE_PREFIX "/IJB-FORCE-LOAD"
#endif /* def FORCE_LOAD */
-/* Shouldn't end with '/' */
+/* Hardwired URLs */
#define HOME_PAGE_URL "http://ijbswa.sourceforge.net"
#define REDIRECT_URL HOME_PAGE_URL "/redirect.php?v=" VERSION "&to="
-
#define CGI_PREFIX_HOST "i.j.b"
+/* HTTP snipplets */
static const char CSUCCEED[] =
"HTTP/1.0 200 Connection established\n"
"Proxy-Agent: IJ/" VERSION "\n\n";
static const char CHEADER[] =
"HTTP/1.0 400 Invalid header received from browser\n\n";
-static const char SHEADER[] =
- "HTTP/1.0 502 Invalid header received from server\n\n";
-
-#ifdef IMAGE_BLOCKING
-
-/*
- * Hint: You can encode your own GIFs like that:
- * perl -e 'while (read STDIN, $c, 1) { printf("\\%.3o,", unpack("C", $c)); }'
- */
-
-static const char BLANKGIF[] =
- "HTTP/1.0 200 OK\r\n"
- "Pragma: no-cache\r\n"
- "Last-Modified: Thu Jul 31, 1997 07:42:22 pm GMT\r\n"
- "Expires: Thu Jul 31, 1997 07:42:22 pm GMT\r\n"
- "Content-type: image/gif\r\n\r\n"
- "GIF89a\001\000\001\000\200\000\000\377\377\377\000\000"
- "\000!\371\004\001\000\000\000\000,\000\000\000\000\001"
- "\000\001\000\000\002\002D\001\000;";
-
-static const char JBGIF[] =
- "HTTP/1.0 200 OK\r\n"
- "Pragma: no-cache\r\n"
- "Last-Modified: Thu Jul 31, 1997 07:42:22 pm GMT\r\n"
- "Expires: Thu Jul 31, 1997 07:42:22 pm GMT\r\n"
- "Content-type: image/gif\r\n\r\n"
- "GIF89aD\000\013\000\360\000\000\000\000\000\377\377\377!"
- "\371\004\001\000\000\001\000,\000\000\000\000D\000\013\000"
- "\000\002a\214\217\251\313\355\277\000\200G&K\025\316hC\037"
- "\200\234\230Y\2309\235S\230\266\206\372J\253<\3131\253\271"
- "\270\215\342\254\013\203\371\202\264\334P\207\332\020o\266"
- "N\215I\332=\211\312\3513\266:\026AK)\364\370\365aobr\305"
- "\372\003S\275\274k2\354\254z\347?\335\274x\306^9\374\276"
- "\037Q\000\000;";
-
-#endif /* def IMAGE_BLOCKING */
-
-#if defined(FAST_REDIRECTS) || defined(IMAGE_BLOCKING)
-
-static const char HTTP_REDIRECT_TEMPLATE[] =
- "HTTP/1.0 302 Local Redirect from Junkbuster\r\n"
- "Pragma: no-cache\r\n"
- "Last-Modified: Thu Jul 31, 1997 07:42:22 pm GMT\r\n"
- "Expires: Thu Jul 31, 1997 07:42:22 pm GMT\r\n"
- "Location: %s\r\n\r\n";
-
-#endif /* defined(FAST_REDIRECTS) || defined(IMAGE_BLOCKING) */
-
#ifdef __cplusplus
} /* extern "C" */
#endif