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curl/lib/urldata.h

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C
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#ifndef __URLDATA_H
#define __URLDATA_H
/*****************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
* License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is Curl.
*
* The Initial Developer of the Original Code is Daniel Stenberg.
*
* Portions created by the Initial Developer are Copyright (C) 1998.
* All Rights Reserved.
*
* ------------------------------------------------------------
* Main author:
* - Daniel Stenberg <daniel@haxx.se>
*
* http://curl.haxx.se
*
* $Source$
* $Revision$
* $Date$
* $Author$
* $State$
* $Locker$
*
* ------------------------------------------------------------
****************************************************************************/
/* This file is for lib internal stuff */
#include "setup.h"
#ifndef MAXHOSTNAMELEN
#define MAXHOSTNAMELEN 256
#endif
#define PORT_FTP 21
#define PORT_TELNET 23
#define PORT_GOPHER 70
#define PORT_HTTP 80
#define PORT_HTTPS 443
#define PORT_DICT 2628
#define PORT_LDAP 389
#define DICT_MATCH "/MATCH:"
#define DICT_MATCH2 "/M:"
#define DICT_MATCH3 "/FIND:"
#define DICT_DEFINE "/DEFINE:"
#define DICT_DEFINE2 "/D:"
#define DICT_DEFINE3 "/LOOKUP:"
#define CURL_DEFAULT_USER "anonymous"
#define CURL_DEFAULT_PASSWORD "curl_by_daniel@haxx.se"
#include "cookie.h"
#include "formdata.h"
#ifdef USE_SSLEAY
/* SSLeay stuff usually in /usr/local/ssl/include */
#ifdef USE_OPENSSL
#include "openssl/rsa.h"
#include "openssl/crypto.h"
#include "openssl/x509.h"
#include "openssl/pem.h"
#include "openssl/ssl.h"
#include "openssl/err.h"
#else
#include "rsa.h"
#include "crypto.h"
#include "x509.h"
#include "pem.h"
#include "ssl.h"
#include "err.h"
#endif
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#include "timeval.h"
#include <curl/curl.h>
/* Download buffer size, keep it fairly big for speed reasons */
#define BUFSIZE (1024*50)
/* Upload buffer size, keep it smallish to get faster progress meter
updates. This should probably become dynamic and adjust to the upload
speed. */
#define UPLOAD_BUFSIZE (1024*2)
/* Initial size of the buffer to store headers in, it'll be enlarged in case
of need. */
#define HEADERSIZE 256
#ifndef MAX
#define MAX(x,y) ((x)>(y)?(x):(y))
#endif
typedef enum {
STRUCT_NONE,
STRUCT_OPEN,
STRUCT_CONNECT,
STRUCT_LAST
} Handle;
typedef enum {
CONN_NONE, /* illegal state */
CONN_INIT, /* curl_connect() has been called */
CONN_DO, /* curl_do() has been called successfully */
CONN_DONE, /* curl_done() has been called successfully */
CONN_ERROR, /* and error has occurred */
CONN_LAST /* illegal state */
} ConnState;
#ifdef KRB4
struct krb4buffer {
void *data;
size_t size;
size_t index;
int eof_flag;
};
enum protection_level {
prot_clear,
prot_safe,
prot_confidential,
prot_private
};
#endif
/*
* The connectdata struct contains all fields and variables that should be
* unique for an entire connection.
*/
struct connectdata {
/**** Fields set when inited and not modified again */
/* To better see what kind of struct that is passed as input, *ALL* publicly
returned handles MUST have this initial 'Handle'. */
Handle handle; /* struct identifier */
struct UrlData *data; /* link to the root CURL struct */
/**** curl_connect() phase fields */
ConnState state; /* for state dependent actions */
long protocol; /* PROT_* flags concerning the protocol set */
#define PROT_MISSING (1<<0)
#define PROT_GOPHER (1<<1)
#define PROT_HTTP (1<<2)
#define PROT_HTTPS (1<<3)
#define PROT_FTP (1<<4)
#define PROT_TELNET (1<<5)
#define PROT_DICT (1<<6)
#define PROT_LDAP (1<<7)
#define PROT_FILE (1<<8)
char *hostent_buf; /* pointer to allocated memory for name info */
struct hostent *hp;
struct sockaddr_in serv_addr;
char proto[64];
char gname[256];
char *name;
char path[URL_MAX_LENGTH];
char *ppath;
long bytecount;
struct timeval now;
long upload_bufsize; /* adjust as you see fit, never bigger than BUFSIZE
never smaller than UPLOAD_BUFSIZE */
/* These two functions MUST be set by the curl_connect() function to be
be protocol dependent */
CURLcode (*curl_do)(struct connectdata *connect);
CURLcode (*curl_done)(struct connectdata *connect);
/* This function *MAY* be set to a protocol-dependent function that is run
* after the connect() and everything is done, as a step in the connection.
*/
CURLcode (*curl_connect)(struct connectdata *connect);
/* This function *MAY* be set to a protocol-dependent function that is run
* in the curl_close() function if protocol-specific cleanups are required.
*/
CURLcode (*curl_close)(struct connectdata *connect);
/**** curl_get() phase fields */
/* READ stuff */
int sockfd; /* socket to read from or -1 */
int size; /* -1 if unknown at this point */
bool getheader; /* TRUE if header parsing is wanted */
long *bytecountp; /* return number of bytes read or NULL */
/* WRITE stuff */
int writesockfd; /* socket to write to, it may very well be
the same we read from. -1 disables */
long *writebytecountp; /* return number of bytes written or NULL */
#ifdef KRB4
enum protection_level command_prot;
enum protection_level data_prot;
enum protection_level request_data_prot;
size_t buffer_size;
struct krb4buffer in_buffer, out_buffer;
int sec_complete;
void *app_data;
#endif
};
struct Progress {
long lastshow; /* time() of the last displayed progress meter or NULL to
force redraw at next call */
double size_dl;
double size_ul;
double downloaded;
double uploaded;
double current_speed; /* uses the currently fastest transfer */
bool callback; /* set when progress callback is used */
int width; /* screen width at download start */
int flags; /* see progress.h */
double timespent;
double dlspeed;
double ulspeed;
struct timeval start;
/* various data stored for possible later report */
struct timeval t_nslookup;
struct timeval t_connect;
struct timeval t_pretransfer;
int httpcode;
#define CURR_TIME 5
double speeder[ CURR_TIME ];
int speeder_c;
};
/****************************************************************************
* HTTP unique setup
***************************************************************************/
struct HTTP {
struct FormData *sendit;
int postsize;
char *p_pragma;
char *p_accept;
long readbytecount;
long writebytecount;
/* For FORM posting */
struct Form form;
size_t (*storefread)(char *, size_t , size_t , FILE *);
FILE *in;
};
/****************************************************************************
* FTP unique setup
***************************************************************************/
struct FTP {
long *bytecountp;
char *user;
char *passwd;
char *urlpath; /* the originally given path part of the URL */
char *dir; /* decoded directory */
char *file; /* decoded file */
};
struct Configbits {
bool tunnel_thru_httpproxy;
bool ftp_append;
bool ftp_ascii;
bool ftp_list_only;
bool ftp_use_port;
bool hide_progress;
bool http_fail_on_error;
bool http_follow_location;
bool http_formpost;
bool http_include_header;
bool http_post;
bool http_put;
bool http_set_referer;
bool http_auto_referer; /* set "correct" referer when following location: */
bool httpproxy;
bool mute;
bool no_body;
bool proxy_user_passwd;
bool proxystringalloc; /* the http proxy string is malloc()'ed */
bool set_port;
bool set_range;
bool upload;
bool use_netrc;
bool user_passwd;
bool verbose;
bool this_is_a_follow; /* this is a followed Location: request */
bool krb4; /* kerberos4 connection requested */
};
/* What type of interface that intiated this struct */
typedef enum {
CURLI_NONE,
CURLI_EASY,
CURLI_NORMAL,
CURLI_LAST
} CurlInterface;
/*
* As of April 11, 2000 we're now trying to split up the urldata struct in
* three different parts:
*
* (Global)
* 1 - No matter how many hosts and requests that are being performed, this
* goes for all of them.
*
* (Session)
* 2 - Host and protocol-specific. No matter if we do several transfers to and
* from this host, these variables stay the same.
*
* (Request)
* 3 - Request-specific. Variables that are of interest for this particular
* transfer being made right now.
*
*/
struct UrlData {
Handle handle; /* struct identifier */
CurlInterface interf; /* created by WHAT interface? */
/*************** Global - specific items ************/
FILE *err; /* the stderr writes goes here */
char *errorbuffer; /* store failure messages in here */
/*************** Session - specific items ************/
char *proxy; /* if proxy, set it here, set CONF_PROXY to use this */
char *proxyuserpwd; /* Proxy <user:password>, if used */
long proxyport; /* If non-zero, use this port number by default. If the
proxy string features a ":[port]" that one will override
this. */
/*************** Request - specific items ************/
union {
struct HTTP *http;
struct HTTP *gopher; /* alias, just for the sake of being more readable */
struct HTTP *https; /* alias, just for the sake of being more readable */
struct FTP *ftp;
#if 0 /* no need for special ones for these: */
struct TELNET *telnet;
struct FILE *file;
struct LDAP *ldap;
struct DICT *dict;
#endif
void *generic;
} proto;
FILE *out; /* the fetched file goes here */
FILE *in; /* the uploaded file is read from here */
FILE *writeheader; /* write the header to this is non-NULL */
char *url; /* what to get */
char *freethis; /* if non-NULL, an allocated string for the URL */
char *hostname; /* hostname to connect, as parsed from url */
unsigned short port; /* which port to use (if non-protocol bind) set
CONF_PORT to use this */
unsigned short remote_port; /* what remote port to connect to, not the proxy
port! */
struct Configbits bits; /* new-style (v7) flag data */
char *userpwd; /* <user:password>, if used */
char *range; /* range, if used. See README for detailed specification on
this syntax. */
char *postfields; /* if POST, set the fields' values here */
long postfieldsize; /* if POST, this might have a size to use instead of
strlen(), and then the data *may* be binary (contain
zero bytes) */
bool free_referer; /* set TRUE if 'referer' points to a string we
allocated */
char *referer;
char *useragent; /* User-Agent string */
char *ftpport; /* port to send with the PORT command */
char *device; /* Interface to use */
/* function that stores the output:*/
curl_write_callback fwrite;
/* function that reads the input:*/
curl_read_callback fread;
/* function that wants progress information */
curl_progress_callback fprogress;
void *progress_client; /* pointer to pass to the progress callback */
long timeout; /* in seconds, 0 means no timeout */
long infilesize; /* size of file to upload, -1 means unknown */
long maxdownload; /* in bytes, the maximum amount of data to fetch, 0
means unlimited */
/* fields only set and used within _urlget() */
int firstsocket; /* the main socket to use */
int secondarysocket; /* for i.e ftp transfers */
char buffer[BUFSIZE+1]; /* buffer with size BUFSIZE */
double current_speed; /* the ProgressShow() funcion sets this */
long low_speed_limit; /* bytes/second */
long low_speed_time; /* number of seconds */
int resume_from; /* continue [ftp] transfer from here */
char *cookie; /* HTTP cookie string to send */
short use_ssl; /* use ssl encrypted communications */
char *newurl; /* This can only be set if a Location: was in the
document headers */
struct curl_slist *headers; /* linked list of extra headers */
struct HttpPost *httppost; /* linked list of POST data */
char *cert; /* PEM-formatted certificate */
char *cert_passwd; /* plain text certificate password */
struct CookieInfo *cookies;
long ssl_version; /* what version the client wants to use */
#ifdef USE_SSLEAY
SSL_CTX* ctx;
SSL* ssl;
X509* server_cert;
#endif /* USE_SSLEAY */
long crlf;
struct curl_slist *quote; /* before the transfer */
struct curl_slist *postquote; /* after the transfer */
TimeCond timecondition;
time_t timevalue;
char *customrequest; /* http/ftp request to use */
char *headerbuff; /* allocated buffer to store headers in */
int headersize; /* size of the allocation */
char *writeinfo; /* if non-NULL describes what to output on a successful
completion */
struct Progress progress;
#define MAX_CURL_USER_LENGTH 128
#define MAX_CURL_PASSWORD_LENGTH 128
char *auth_host; /* if set, this is the allocated string to the host name
* to which to send the authorization data to, and no other
* host (which location-following otherwise could lead to)
*/
char user[MAX_CURL_USER_LENGTH];
char passwd[MAX_CURL_PASSWORD_LENGTH];
char proxyuser[MAX_CURL_USER_LENGTH];
char proxypasswd[MAX_CURL_PASSWORD_LENGTH];
/**** Dynamicly allocated strings, may need to be freed on return ****/
char *ptr_proxyuserpwd; /* free later if not NULL! */
char *ptr_uagent; /* free later if not NULL! */
char *ptr_userpwd; /* free later if not NULL! */
char *ptr_rangeline; /* free later if not NULL! */
char *ptr_ref; /* free later if not NULL! */
char *ptr_cookie; /* free later if not NULL! */
char *ptr_host; /* free later if not NULL */
char *krb4_level;
#ifdef KRB4
FILE *cmdchannel;
#endif
};
#define LIBCURL_NAME "libcurl"
#define LIBCURL_ID LIBCURL_NAME " " LIBCURL_VERSION " " SSL_ID
#endif
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