mirror of
https://github.com/curl/curl.git
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11f2464a22
already been transfered no longer returns error but instead is OK. The reasoning behind this is of course that no extra actions need to be taken and it is as if a transfer had been successfully performed.
605 lines
19 KiB
C
605 lines
19 KiB
C
#ifndef __URLDATA_H
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#define __URLDATA_H
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/*****************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 2000, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* In order to be useful for every potential user, curl and libcurl are
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* dual-licensed under the MPL and the MIT/X-derivate licenses.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the MPL or the MIT/X-derivate
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* licenses. You may pick one of these licenses.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* $Id$
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*****************************************************************************/
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/* This file is for lib internal stuff */
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#include "setup.h"
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#ifndef MAXHOSTNAMELEN
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#define MAXHOSTNAMELEN 256
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#endif
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#define PORT_FTP 21
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#define PORT_TELNET 23
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#define PORT_GOPHER 70
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#define PORT_HTTP 80
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#define PORT_HTTPS 443
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#define PORT_DICT 2628
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#define PORT_LDAP 389
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#define DICT_MATCH "/MATCH:"
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#define DICT_MATCH2 "/M:"
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#define DICT_MATCH3 "/FIND:"
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#define DICT_DEFINE "/DEFINE:"
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#define DICT_DEFINE2 "/D:"
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#define DICT_DEFINE3 "/LOOKUP:"
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#define CURL_DEFAULT_USER "anonymous"
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#define CURL_DEFAULT_PASSWORD "curl_by_daniel@haxx.se"
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#include "cookie.h"
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#include "formdata.h"
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#ifdef USE_SSLEAY
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/* SSLeay stuff usually in /usr/local/ssl/include */
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#ifdef USE_OPENSSL
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#include "openssl/rsa.h"
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#include "openssl/crypto.h"
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#include "openssl/x509.h"
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#include "openssl/pem.h"
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#include "openssl/ssl.h"
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#include "openssl/err.h"
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#else
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#include "rsa.h"
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#include "crypto.h"
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#include "x509.h"
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#include "pem.h"
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#include "ssl.h"
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#include "err.h"
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#endif
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#endif
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#ifdef HAVE_NETINET_IN_H
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#include <netinet/in.h>
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#endif
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#include "timeval.h"
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#include <curl/curl.h>
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#include "http_chunks.h" /* for the structs and enum stuff */
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/* Download buffer size, keep it fairly big for speed reasons */
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#define BUFSIZE (1024*50)
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/* Defaul upload buffer size, keep it smallish to get faster progress meter
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updates. This is just default, it is dynamic and adjusts to the upload
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speed. */
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#define UPLOAD_BUFSIZE (1024*2)
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/* Initial size of the buffer to store headers in, it'll be enlarged in case
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of need. */
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#define HEADERSIZE 256
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/* Just a convenience macro to get the larger value out of two given */
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#ifndef MAX
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#define MAX(x,y) ((x)>(y)?(x):(y))
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#endif
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#ifdef KRB4
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/* Types needed for krb4-ftp connections */
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struct krb4buffer {
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void *data;
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size_t size;
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size_t index;
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int eof_flag;
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};
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enum protection_level {
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prot_clear,
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prot_safe,
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prot_confidential,
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prot_private
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};
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#endif
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/* struct for data related to SSL and SSL connections */
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struct ssl_connect_data {
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bool use; /* use ssl encrypted communications TRUE/FALSE */
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#ifdef USE_SSLEAY
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/* these ones requires specific SSL-types */
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SSL_CTX* ctx;
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SSL* handle;
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X509* server_cert;
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#endif /* USE_SSLEAY */
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};
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struct ssl_config_data {
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long version; /* what version the client wants to use */
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long certverifyresult; /* result from the certificate verification */
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long verifypeer; /* set TRUE if this is desired */
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char *CApath; /* DOES NOT WORK ON WINDOWS */
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char *CAfile; /* cerficate to verify peer against */
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char *random_file; /* path to file containing "random" data */
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char *egdsocket; /* path to file containing the EGD daemon socket */
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};
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/****************************************************************************
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* HTTP unique setup
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***************************************************************************/
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struct HTTP {
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struct FormData *sendit;
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int postsize;
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char *p_pragma; /* Pragma: string */
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char *p_accept; /* Accept: string */
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long readbytecount;
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long writebytecount;
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/* For FORM posting */
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struct Form form;
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curl_read_callback storefread;
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FILE *in;
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struct Curl_chunker chunk;
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};
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/****************************************************************************
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* FTP unique setup
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***************************************************************************/
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struct FTP {
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long *bytecountp;
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char *user; /* user name string */
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char *passwd; /* password string */
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char *urlpath; /* the originally given path part of the URL */
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char *dir; /* decoded directory */
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char *file; /* decoded file */
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char *entrypath; /* the PWD reply when we logged on */
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};
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/****************************************************************************
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* FILE unique setup
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***************************************************************************/
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struct FILE {
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int fd; /* open file descriptor to read from! */
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};
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/*
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* Boolean values that concerns this connection.
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*/
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struct ConnectBits {
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bool close; /* if set, we close the connection after this request */
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bool reuse; /* if set, this is a re-used connection */
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bool chunk; /* if set, this is a chunked transfer-encoding */
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bool httpproxy; /* if set, this transfer is done through a http proxy */
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bool user_passwd; /* do we use user+password for this connection? */
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bool proxy_user_passwd; /* user+password for the proxy? */
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bool use_range;
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bool rangestringalloc; /* the range string is malloc()'ed */
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bool resume_done; /* nothing was transfered, resumed transfer already
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complete */
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};
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/*
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* The connectdata struct contains all fields and variables that should be
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* unique for an entire connection.
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*/
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struct connectdata {
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/**** Fields set when inited and not modified again */
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struct UrlData *data; /* link to the root CURL struct */
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int connectindex; /* what index in the connects index this particular
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struct has */
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long protocol; /* PROT_* flags concerning the protocol set */
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#define PROT_MISSING (1<<0)
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#define PROT_GOPHER (1<<1)
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#define PROT_HTTP (1<<2)
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#define PROT_HTTPS (1<<3)
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#define PROT_FTP (1<<4)
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#define PROT_TELNET (1<<5)
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#define PROT_DICT (1<<6)
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#define PROT_LDAP (1<<7)
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#define PROT_FILE (1<<8)
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#define PROT_FTPS (1<<9)
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#ifdef ENABLE_IPV6
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struct addrinfo *hp; /* host info pointer list */
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struct addrinfo *ai; /* the particular host we use */
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#else
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char *hostent_buf; /* pointer to allocated memory for name info */
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struct hostent *hp;
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struct sockaddr_in serv_addr;
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#endif
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char protostr[64]; /* store the protocol string in this buffer */
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char gname[257]; /* store the hostname in this buffer */
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char *name; /* host name pointer to fool around with */
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char *path; /* allocated buffer to store the URL's path part in */
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char *hostname; /* hostname to connect, as parsed from url */
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long port; /* which port to use locally */
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unsigned short remote_port; /* what remote port to connect to,
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not the proxy port! */
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char *ppath;
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long bytecount;
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char *range; /* range, if used. See README for detailed specification on
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this syntax. */
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int resume_from; /* continue [ftp] transfer from here */
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char *proxyhost; /* name of the http proxy host */
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struct timeval now; /* "current" time */
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struct timeval created; /* creation time */
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int firstsocket; /* the main socket to use */
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int secondarysocket; /* for i.e ftp transfers */
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long upload_bufsize; /* adjust as you see fit, never bigger than BUFSIZE
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never smaller than UPLOAD_BUFSIZE */
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long maxdownload; /* in bytes, the maximum amount of data to fetch, 0
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means unlimited */
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struct ssl_connect_data ssl; /* this is for ssl-stuff */
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struct ConnectBits bits; /* various state-flags for this connection */
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/* These two functions MUST be set by the curl_connect() function to be
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be protocol dependent */
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CURLcode (*curl_do)(struct connectdata *connect);
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CURLcode (*curl_done)(struct connectdata *connect);
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/* This function *MAY* be set to a protocol-dependent function that is run
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* after the connect() and everything is done, as a step in the connection.
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*/
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CURLcode (*curl_connect)(struct connectdata *connect);
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/* This function *MAY* be set to a protocol-dependent function that is run
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* by the curl_disconnect(), as a step in the disconnection.
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*/
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CURLcode (*curl_disconnect)(struct connectdata *connect);
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/* This function *MAY* be set to a protocol-dependent function that is run
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* in the curl_close() function if protocol-specific cleanups are required.
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*/
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CURLcode (*curl_close)(struct connectdata *connect);
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/**** curl_get() phase fields */
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/* READ stuff */
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int sockfd; /* socket to read from or -1 */
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int size; /* -1 if unknown at this point */
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bool getheader; /* TRUE if header parsing is wanted */
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long *bytecountp; /* return number of bytes read or NULL */
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/* WRITE stuff */
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int writesockfd; /* socket to write to, it may very well be
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the same we read from. -1 disables */
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long *writebytecountp; /* return number of bytes written or NULL */
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/** Dynamicly allocated strings, may need to be freed before this **/
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/** struct is killed. **/
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struct dynamically_allocated_data {
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char *proxyuserpwd; /* free later if not NULL! */
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char *uagent; /* free later if not NULL! */
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char *userpwd; /* free later if not NULL! */
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char *rangeline; /* free later if not NULL! */
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char *ref; /* free later if not NULL! */
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char *cookie; /* free later if not NULL! */
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char *host; /* free later if not NULL */
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} allocptr;
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char *newurl; /* This can only be set if a Location: was in the
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document headers */
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#ifdef KRB4
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enum protection_level command_prot;
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enum protection_level data_prot;
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enum protection_level request_data_prot;
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size_t buffer_size;
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struct krb4buffer in_buffer, out_buffer;
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int sec_complete;
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void *app_data;
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#endif
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/*************** Request - specific items ************/
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/* previously this was in the urldata struct */
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union {
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struct HTTP *http;
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struct HTTP *gopher; /* alias, just for the sake of being more readable */
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struct HTTP *https; /* alias, just for the sake of being more readable */
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struct FTP *ftp;
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struct FILE *file;
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void *telnet; /* private for telnet.c-eyes only */
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#if 0 /* no need for special ones for these: */
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struct LDAP *ldap;
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struct DICT *dict;
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#endif
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void *generic;
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} proto;
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};
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struct Progress {
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long lastshow; /* time() of the last displayed progress meter or NULL to
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force redraw at next call */
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double size_dl;
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double size_ul;
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double downloaded;
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double uploaded;
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double current_speed; /* uses the currently fastest transfer */
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bool callback; /* set when progress callback is used */
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int width; /* screen width at download start */
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int flags; /* see progress.h */
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double timespent;
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double dlspeed;
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double ulspeed;
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struct timeval start;
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struct timeval t_startsingle;
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/* various data stored for possible later report */
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double t_nslookup;
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double t_connect;
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double t_pretransfer;
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int httpcode;
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int httpversion;
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time_t filetime; /* If requested, this is might get set. It may be 0 if
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the time was unretrievable */
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#define CURR_TIME 5
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double speeder[ CURR_TIME ];
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int speeder_c;
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};
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typedef enum {
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HTTPREQ_NONE, /* first in list */
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HTTPREQ_GET,
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HTTPREQ_POST,
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HTTPREQ_POST_FORM, /* we make a difference internally */
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HTTPREQ_PUT,
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HTTPREQ_CUSTOM,
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HTTPREQ_LAST /* last in list */
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} Curl_HttpReq;
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/* This struct is for boolean settings that define how to behave during
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this session. */
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struct Configbits {
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/* these four request types mirror the httpreq field */
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bool http_formpost;
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bool http_post;
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bool http_put;
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bool http_get;
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bool get_filetime;
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bool tunnel_thru_httpproxy;
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bool ftp_append;
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bool ftp_ascii;
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bool ftp_list_only;
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bool ftp_use_port;
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bool hide_progress;
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bool http_fail_on_error;
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bool http_follow_location;
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bool http_include_header;
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bool http_set_referer;
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bool http_auto_referer; /* set "correct" referer when following location: */
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bool httpproxy;
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bool mute;
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bool no_body;
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bool set_port;
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bool set_range;
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bool upload;
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bool use_netrc;
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bool verbose;
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bool this_is_a_follow; /* this is a followed Location: request */
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bool krb4; /* kerberos4 connection requested */
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bool proxystringalloc; /* the http proxy string is malloc()'ed */
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bool urlstringalloc; /* the URL string is malloc()'ed */
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bool reuse_forbid; /* if this is forbidden to be reused, close
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after use */
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bool reuse_fresh; /* do not re-use an existing connection for this
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transfer */
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};
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/*
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* As of April 11, 2000 we're now trying to split up the urldata struct in
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* three different parts:
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*
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* (Global)
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* 1 - No matter how many hosts and requests that are being performed, this
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* goes for all of them.
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*
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* (Session)
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* 2 - Host and protocol-specific. No matter if we do several transfers to and
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* from this host, these variables stay the same.
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*
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* (Request)
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* 3 - Request-specific. Variables that are of interest for this particular
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* transfer being made right now. THIS IS WRONG STRUCT FOR THOSE.
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*
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* In Febrary 2001, this is being done stricter. The 'connectdata' struct
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* MUST have all the connection oriented stuff as we may now have several
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* simultaneous connections and connection structs in memory.
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*
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* From now on, the 'UrlData' must only contain data that is set once to go
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* for many (perhaps) independent connections. Values that are generated or
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* calculated internally MUST NOT be a part of this struct.
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*/
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struct UrlData {
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/*************** Global - specific items ************/
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FILE *err; /* the stderr writes goes here */
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char *errorbuffer; /* store failure messages in here */
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/*************** Session - specific items ************/
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char *proxy; /* if proxy, set it here */
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char *proxyuserpwd; /* Proxy <user:password>, if used */
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long proxyport; /* If non-zero, use this port number by default. If the
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proxy string features a ":[port]" that one will override
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this. */
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long header_size; /* size of read header(s) in bytes */
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long request_size; /* the amount of bytes sent in the request(s) */
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void *out; /* the fetched file goes here */
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void *in; /* the uploaded file is read from here */
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void *writeheader; /* write the header to this is non-NULL */
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char *url; /* what to get */
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char *freethis; /* if non-NULL, an allocated string for the URL */
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long use_port; /* which port to use (when not using default) */
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struct Configbits bits; /* new-style (v7) flag data */
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struct ssl_config_data ssl; /* this is for ssl-stuff */
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char *userpwd; /* <user:password>, if used */
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char *set_range; /* range, if used. See README for detailed specification on
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this syntax. */
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/* stuff related to HTTP */
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long followlocation;
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long maxredirs; /* maximum no. of http(s) redirects to follow */
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char *referer;
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bool free_referer; /* set TRUE if 'referer' points to a string we
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allocated */
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char *useragent; /* User-Agent string */
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char *postfields; /* if POST, set the fields' values here */
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long postfieldsize; /* if POST, this might have a size to use instead of
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strlen(), and then the data *may* be binary (contain
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zero bytes) */
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/* stuff related to FTP */
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char *ftpport; /* port to send with the PORT command */
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/* general things */
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char *device; /* Interface to use */
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/* function that stores the output:*/
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curl_write_callback fwrite;
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/* optional function that stores the header output:*/
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curl_write_callback fwrite_header;
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/* function that reads the input:*/
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curl_read_callback fread;
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/* function that wants progress information */
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curl_progress_callback fprogress;
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void *progress_client; /* pointer to pass to the progress callback */
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/* function to call instead of the internal for password */
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curl_passwd_callback fpasswd;
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void *passwd_client; /* pointer to pass to the passwd callback */
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long timeout; /* in seconds, 0 means no timeout */
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long connecttimeout; /* in seconds, 0 means no timeout */
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long infilesize; /* size of file to upload, -1 means unknown */
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char buffer[BUFSIZE+1]; /* buffer with size BUFSIZE */
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double current_speed; /* the ProgressShow() funcion sets this */
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long low_speed_limit; /* bytes/second */
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long low_speed_time; /* number of seconds */
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int set_resume_from; /* continue [ftp] transfer from here */
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char *cookie; /* HTTP cookie string to send */
|
|
|
|
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 crlf;
|
|
struct curl_slist *quote; /* before the transfer */
|
|
struct curl_slist *postquote; /* after the transfer */
|
|
|
|
/* Telnet negotiation options */
|
|
struct curl_slist *telnet_options; /* linked list of telnet options */
|
|
|
|
TimeCond timecondition; /* kind of comparison */
|
|
time_t timevalue; /* what time to compare with */
|
|
|
|
Curl_HttpReq httpreq; /* what kind of HTTP request (if any) is this */
|
|
|
|
char *customrequest; /* http/ftp request to use */
|
|
|
|
char *headerbuff; /* allocated buffer to store headers in */
|
|
int headersize; /* size of the allocation */
|
|
|
|
struct Progress progress; /* for all the progress meter data */
|
|
|
|
#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)
|
|
*/
|
|
|
|
/* buffers to store authentication data in */
|
|
char user[MAX_CURL_USER_LENGTH];
|
|
char passwd[MAX_CURL_PASSWORD_LENGTH];
|
|
char proxyuser[MAX_CURL_USER_LENGTH];
|
|
char proxypasswd[MAX_CURL_PASSWORD_LENGTH];
|
|
|
|
char *krb4_level; /* what security level */
|
|
struct timeval keeps_speed; /* this should be request-specific */
|
|
|
|
/* 'connects' will be an allocated array with pointers. If the pointer is
|
|
set, it holds an allocated connection. */
|
|
struct connectdata **connects;
|
|
size_t numconnects; /* size of the 'connects' array */
|
|
curl_closepolicy closepolicy;
|
|
|
|
};
|
|
|
|
#define LIBCURL_NAME "libcurl"
|
|
#define LIBCURL_ID LIBCURL_NAME " " LIBCURL_VERSION " " SSL_ID
|
|
|
|
CURLcode Curl_getinfo(CURL *curl, CURLINFO info, ...);
|
|
|
|
/*
|
|
* Here follows function prototypes from what we used to plan to call
|
|
* the "low level" interface. It is no longer prioritized and it is not likely
|
|
* to ever be supported to external users.
|
|
*
|
|
* I removed all the comments to them as well, as they were no longer accurate
|
|
* and they're not meant for "public use" anymore.
|
|
*/
|
|
|
|
CURLcode Curl_open(CURL **curl, char *url);
|
|
CURLcode Curl_setopt(CURL *handle, CURLoption option, ...);
|
|
CURLcode Curl_close(CURL *curl); /* the opposite of curl_open() */
|
|
CURLcode Curl_connect(struct UrlData *,
|
|
struct connectdata **,
|
|
bool allow_port);
|
|
CURLcode Curl_do(struct connectdata *);
|
|
CURLcode Curl_done(struct connectdata *);
|
|
CURLcode Curl_disconnect(struct connectdata *);
|
|
|
|
|
|
#endif
|