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-rw-r--r--Src/replicant/jnetlib/httpget.cpp845
1 files changed, 845 insertions, 0 deletions
diff --git a/Src/replicant/jnetlib/httpget.cpp b/Src/replicant/jnetlib/httpget.cpp
new file mode 100644
index 00000000..d3a83452
--- /dev/null
+++ b/Src/replicant/jnetlib/httpget.cpp
@@ -0,0 +1,845 @@
+/*
+** JNetLib
+** Copyright (C) 2000-2007 Nullsoft, Inc.
+** Author: Justin Frankel
+** File: httpget.cpp - JNL HTTP GET implementation
+** License: see jnetlib.h
+*/
+
+#include "netinc.h"
+#include "util.h"
+#include "httpget.h"
+#include "foundation/error.h"
+
+#ifdef USE_SSL
+#include "sslconnection.h"
+#endif
+
+#include <stdio.h>
+
+#define STRSAFE_NO_DEPRECATE
+
+#include "nu/strsafe.h"
+#include "nu/AutoLock.h"
+
+char *JNL_HTTPGet::g_proxy = 0;
+
+static nu::LockGuard proxy_guard;
+
+char *JNL_HTTPGet::get_proxy()
+{
+ nu::AutoLock auto_lock( proxy_guard );
+
+ if ( g_proxy )
+ return _strdup( g_proxy );
+ else
+ return 0;
+}
+
+void JNL_HTTPGet::set_proxy( const char *proxy )
+{
+ nu::AutoLock auto_lock( proxy_guard );
+
+ free( g_proxy );
+
+ if ( proxy )
+ g_proxy = _strdup( proxy );
+ else
+ g_proxy = 0;
+}
+
+JNL_HTTPGet::JNL_HTTPGet( size_t recvbufsize, size_t sendbufsize )
+{
+ persistent = false;
+ accept_all_reply_codes = false;
+ zlibStream = 0;
+ allowCompression = false;
+ m_dns = JNL_AUTODNS;
+ m_con = NULL;
+ m_http_proxylpinfo = 0;
+ m_http_proxyhost = 0;
+ m_http_proxyport = 0;
+ m_sendbufsize = sendbufsize;
+ m_sendheaders = NULL;
+
+ reinit();
+
+ m_recvbufsize = recvbufsize;
+
+ char *p = get_proxy();
+ if ( p )
+ {
+ char *r = NULL;
+ do_parse_url( p, &m_http_proxyhost, &m_http_proxyport, &r, &m_http_proxylpinfo );
+
+ free( r );
+ free( p );
+ }
+}
+
+JNL_HTTPGet::~JNL_HTTPGet()
+{
+ deinit();
+ free( m_sendheaders );
+ free( m_http_proxylpinfo );
+ free( m_http_proxyhost );
+}
+
+void JNL_HTTPGet::reinit()
+{
+ m_errstr = 0;
+ m_recvheaders = NULL;
+ m_recvheaders_size = 0;
+ m_http_state = 0;
+ m_http_port = 0;
+ m_http_url = 0;
+ m_reply = 0;
+ m_http_host = m_http_lpinfo = m_http_request = NULL;
+}
+
+void JNL_HTTPGet::deinit( bool full )
+{
+ if ( !persistent || full || ( m_con && m_con->get_state() == JNL_Connection::STATE_ERROR ) )
+ {
+ delete m_con;
+ m_con = NULL;
+ }
+
+ free( m_recvheaders );
+ free( m_http_url );
+ free( m_http_host );
+ free( m_http_lpinfo );
+ free( m_http_request );
+ free( m_errstr );
+ free( m_reply );
+
+ if ( zlibStream )
+ inflateEnd( zlibStream );
+
+ free( zlibStream );
+ zlibStream = 0;
+
+ reinit();
+}
+
+void JNL_HTTPGet::set_sendbufsize(size_t sendbufsize)
+{
+ m_sendbufsize = sendbufsize;
+}
+
+int JNL_HTTPGet::set_recv_buffer_size( size_t new_buffer_size )
+{
+ if ( m_con )
+ {
+ int ret = m_con->set_recv_buffer_size( new_buffer_size );
+ if ( ret == NErr_NoAction )// this will get returned if new_buffer_size is smaller than existing.
+ return NErr_Success;
+ else if ( ret != NErr_Success )
+ return ret;
+ }
+
+ m_recvbufsize = new_buffer_size;
+ return NErr_Success;
+}
+
+void JNL_HTTPGet::addheader( const char *header )
+{
+ if ( strstr( header, "\r" ) || strstr( header, "\n" ) )
+ return;
+
+ if ( !m_sendheaders )
+ {
+ size_t len = strlen( header ) + 3;
+ m_sendheaders = (char *)malloc( len );
+ if ( m_sendheaders )
+ {
+ char *itr = m_sendheaders;
+ StringCchCopyExA( itr, len, header, &itr, &len, 0 );
+ StringCchCatExA( itr, len, "\r\n", &itr, &len, 0 );
+ }
+ }
+ else
+ {
+ size_t len = strlen( header ) + strlen( m_sendheaders ) + 1 + 2;
+ char *t = (char *)malloc( len );
+ if ( t )
+ {
+ char *newHeaders = t;
+ StringCchCopyExA( t, len, m_sendheaders, &t, &len, 0 );
+ StringCchCatExA( t, len, header, &t, &len, 0 );
+ StringCchCatExA( t, len, "\r\n", &t, &len, 0 );
+ free( m_sendheaders );
+ m_sendheaders = newHeaders;
+ }
+ }
+}
+
+void JNL_HTTPGet::addheadervalue( const char *header, const char *value )
+{
+ size_t additional = strlen( header ) + 2 + strlen( value ) + 2 + 1;
+
+ if ( !m_sendheaders )
+ {
+ m_sendheaders = (char *)malloc( additional );
+ if ( m_sendheaders )
+ {
+ char *p = m_sendheaders;
+ StringCchCopyExA( p, additional, header, &p, &additional, 0 );
+ StringCchCatExA( p, additional, ": ", &p, &additional, 0 );
+ StringCchCatExA( p, additional, value, &p, &additional, 0 );
+ StringCchCatExA( p, additional, "\r\n", &p, &additional, 0 );
+ }
+ }
+ else
+ {
+ size_t alloc_len = strlen( m_sendheaders ) + additional;
+ char *t = (char *)malloc( alloc_len );
+ if ( t )
+ {
+ char *p = t;
+ StringCchCopyExA( p, alloc_len, m_sendheaders, &p, &alloc_len, 0 );
+ StringCchCatExA( p, alloc_len, header, &p, &alloc_len, 0 );
+ StringCchCatExA( p, alloc_len, ": ", &p, &alloc_len, 0 );
+ StringCchCatExA( p, alloc_len, value, &p, &alloc_len, 0 );
+ StringCchCatExA( p, alloc_len, "\r\n", &p, &alloc_len, 0 );
+
+ free( m_sendheaders );
+
+ m_sendheaders = t;
+ }
+ }
+}
+
+void JNL_HTTPGet::do_encode_mimestr( char *in, char *out )
+{
+ char alphabet[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+ int shift = 0;
+ int accum = 0;
+
+ while ( in && *in )
+ {
+ if ( *in )
+ {
+ accum <<= 8;
+ shift += 8;
+ accum |= *in++;
+ }
+
+ while ( shift >= 6 )
+ {
+ shift -= 6;
+ *out++ = alphabet[ ( accum >> shift ) & 0x3F ];
+ }
+ }
+
+ if ( shift == 4 )
+ {
+ *out++ = alphabet[ ( accum & 0xF ) << 2 ];
+ *out++ = '=';
+ }
+ else if ( shift == 2 )
+ {
+ *out++ = alphabet[ ( accum & 0x3 ) << 4 ];
+ *out++ = '=';
+ *out++ = '=';
+ }
+
+ *out++ = 0;
+}
+
+
+void JNL_HTTPGet::connect( const char *url, int ver, const char *requestmethod )
+{
+ deinit( false );
+
+ m_http_url = _strdup( url );
+ do_parse_url( m_http_url, &m_http_host, &m_http_port, &m_http_request, &m_http_lpinfo );
+
+ if ( !m_http_host || !m_http_host[ 0 ] || !m_http_port )
+ {
+ m_http_state = -1;
+ seterrstr( "invalid URL" );
+
+ return;
+ }
+
+ size_t sendbufferlen = 0;
+
+ if ( !m_http_proxyhost || !m_http_proxyhost[ 0 ] )
+ sendbufferlen += strlen( requestmethod ) + 1 /* GET */ + strlen( m_http_request ) + 9 /* HTTP/1.0 */ + 2;
+ else
+ {
+ sendbufferlen += strlen( requestmethod ) + 1 /* GET */ + strlen( m_http_url ) + 9 /* HTTP/1.0 */ + 2;
+
+ if ( m_http_proxylpinfo && m_http_proxylpinfo[ 0 ] )
+ sendbufferlen += 58 + strlen( m_http_proxylpinfo ) * 2; // being safe here
+ }
+
+ sendbufferlen += 5 /* Host: */ + strlen( m_http_host ) + 2;
+ if ( m_http_port != 80 )
+ sendbufferlen += 6;
+
+ if ( m_http_lpinfo && m_http_lpinfo[ 0 ] )
+ sendbufferlen += 46 + strlen( m_http_lpinfo ) * 2; // being safe here
+
+ if ( m_sendheaders )
+ sendbufferlen += strlen( m_sendheaders );
+
+ size_t strLen = sendbufferlen + 1024;
+ char *str = (char *)calloc( strLen, sizeof( char ) );
+ char *connectString = str;
+
+ if ( !str )
+ {
+ seterrstr( "error allocating memory" );
+ m_http_state = -1;
+ }
+
+ if ( !m_http_proxyhost || !m_http_proxyhost[ 0 ] )
+ {
+ StringCchPrintfExA( str, strLen, &str, &strLen, 0, "%s %s HTTP/1.%d\r\n", requestmethod, m_http_request, ver % 10 );
+ }
+ else
+ {
+ char *myp = NULL;
+ if ( strncasecmp( m_http_url, "uvox://", 7 ) == 0 )
+ {
+ myp = m_http_url + 7;
+ StringCchPrintfExA( str, strLen, &str, &strLen, 0, "%s http://%s HTTP/1.%d\r\n", requestmethod, myp, ver % 10 );
+ }
+ else if ( strncasecmp( m_http_url, "unsv://", 7 ) == 0 )
+ {
+ myp = m_http_url + 7;
+ StringCchPrintfExA( str, strLen, &str, &strLen, 0, "%s http://%s HTTP/1.%d\r\n", requestmethod, myp, ver % 10 );
+ }
+ else if ( strncasecmp( m_http_url, "uasf://", 7 ) == 0 )
+ {
+ myp = m_http_url + 7;
+ StringCchPrintfExA( str, strLen, &str, &strLen, 0, "%s http://%s HTTP/1.%d\r\n", requestmethod, myp, ver % 10 );
+ }
+ else
+ StringCchPrintfExA( str, strLen, &str, &strLen, 0, "%s %s HTTP/1.%d\r\n", requestmethod, m_http_url, ver % 10 );
+ }
+
+ if ( m_http_port == 80 )
+ StringCchPrintfExA( str, strLen, &str, &strLen, 0, "Host: %s\r\n", m_http_host );
+ else
+ StringCchPrintfExA( str, strLen, &str, &strLen, 0, "Host: %s:%d\r\n", m_http_host, m_http_port );
+
+ if ( m_http_lpinfo && m_http_lpinfo[ 0 ] )
+ {
+ StringCchCatExA( str, strLen, "Authorization: Basic ", &str, &strLen, 0 );
+ do_encode_mimestr( m_http_lpinfo, str );
+ StringCchCatExA( str, strLen, "\r\n", &str, &strLen, 0 );
+ }
+
+ if ( m_http_proxylpinfo && m_http_proxylpinfo[ 0 ] )
+ {
+ StringCchCatExA( str, strLen, "Proxy-Authorization: Basic ", &str, &strLen, 0 );
+ do_encode_mimestr( m_http_proxylpinfo, str );
+ StringCchCatExA( str, strLen, "\r\n", &str, &strLen, 0 );
+ }
+
+ if ( allowCompression )
+ StringCchCatExA( str, strLen, "Accept-Encoding: gzip\r\n", &str, &strLen, 0 );
+
+ if ( m_sendheaders )
+ StringCchCatExA( str, strLen, m_sendheaders, &str, &strLen, 0 );
+
+ StringCchCatExA( str, strLen, "\r\n", &str, &strLen, 0 );
+
+ int a = (int)m_recvbufsize;
+ if ( a < 4096 )
+ a = 4096;
+
+ if ( !m_con )
+ {
+ //m_con=new JNL_Connection(m_dns,strlen(str)+4,a);
+ /*
+ ** Joshua Teitelbaum delta 1/15/2006
+ */
+
+#ifdef USE_SSL
+ /*
+ ** Joshua Teitelbaum 1/27/2006
+ ** Check for secure
+ */
+ if ( !_strnicmp( m_http_url, "https:", strlen( "https:" ) ) )
+ {
+ size_t send_buffer_size = strlen( connectString ) + 4;
+ if ( send_buffer_size < 8192 )
+ send_buffer_size = 8192;
+
+ send_buffer_size += m_sendbufsize;
+
+ if ( m_sendbufsize == 0 && !strcmp( requestmethod, "POST" ) )
+ send_buffer_size += 8192; // some extra room for posting data if it wasn't explicitly defined
+
+ m_con = new JNL_SSL_Connection( NULL, m_dns, send_buffer_size, a );
+ }
+ else
+ {
+#endif
+
+ size_t send_buffer_size = strlen( connectString ) + 4 + m_sendbufsize;
+ if ( m_sendbufsize == 0 && !strcmp( requestmethod, "POST" ) )
+ send_buffer_size += 8192; // some extra room for posting data if it wasn't explicitly defined
+
+ m_con = new JNL_Connection( m_dns, send_buffer_size, a );
+
+#ifdef USE_SSL
+ }
+#endif
+
+ if ( m_con )
+ {
+ if ( !m_http_proxyhost || !m_http_proxyhost[ 0 ] )
+ m_con->connect( m_http_host, m_http_port );
+ else
+ m_con->connect( m_http_proxyhost, m_http_proxyport );
+
+ m_con->send_string( connectString );
+ }
+ else
+ {
+ m_http_state = -1;
+ seterrstr( "could not create connection object" );
+ }
+ }
+ else
+ {
+ m_con->reuse();
+ m_con->send_string( connectString );
+ }
+
+ free(connectString);
+}
+
+void JNL_HTTPGet::do_parse_url( const char *url, char **host, unsigned short *port, char **req, char **lp )
+{
+ char *l_port = 0;
+
+ JNL::parse_url( url, &l_port, host, port, req, lp );
+
+ if ( !*port )
+ {
+ if ( l_port )
+ {
+ addrinfo *res;
+
+ addrinfo hints;
+ memset( &hints, 0, sizeof( hints ) );
+ hints.ai_family = PF_UNSPEC;
+ hints.ai_flags = 0;
+ hints.ai_socktype = SOCK_STREAM;
+
+ if ( getaddrinfo( 0, l_port, &hints, &res ) == 0 )
+ {
+ if ( res->ai_family == AF_INET )
+ *port = htons( ( (sockaddr_in *)res->ai_addr )->sin_port );
+ else if ( res->ai_family == AF_INET6 )
+ *port = htons( ( (sockaddr_in6 *)res->ai_addr )->sin6_port );
+ else // wtf?
+ *port = 80;
+ }
+ else
+ *port = 80;
+ }
+ else
+ *port = 80;
+ }
+
+ if ( l_port )
+ free( l_port );
+
+ if ( !*req )
+ *req = _strdup( "/" );
+}
+
+const char *JNL_HTTPGet::getallheaders()
+{
+ // double null terminated, null delimited list
+ if (m_recvheaders)
+ return m_recvheaders;
+ else
+ return "\0\0";
+}
+
+const char *JNL_HTTPGet::getheader( const char *headername )
+{
+ char *ret = NULL;
+ if ( headername[ 0 ] == 0 || !m_recvheaders )
+ return NULL;
+
+ size_t headername_size = strlen( headername );
+ char *buf = (char *)malloc( headername_size + 2 );
+
+#ifdef _WIN32
+ StringCchCopyA( buf, headername_size + 2, headername );
+#elif defined(__APPLE__)
+ strlcpy( buf, headername, headername_size + 2 );
+#else
+ strncpy( buf, headername, headername_size + 1 );
+ buf[ headername_size + 1 ] = 0;
+#endif
+
+ if ( buf[ headername_size - 1 ] != ':' )
+ {
+ buf[ headername_size++ ] = ':';
+ buf[ headername_size ] = 0;
+ }
+
+ char *p = m_recvheaders;
+ while ( p && *p )
+ {
+ if ( !strncasecmp( buf, p, headername_size ) )
+ {
+ ret = p + headername_size;
+ while ( ret && *ret && *ret == ' ' )
+ ret++;
+
+ break;
+ }
+
+ p += strlen( p ) + 1;
+ }
+
+ free( buf );
+
+ return ret;
+}
+
+int JNL_HTTPGet::run()
+{
+ int cnt = 0;
+ if ( m_http_state == -1 || !m_con )
+ return HTTPGET_RUN_ERROR; // error
+
+
+run_again:
+ m_con->run();
+
+ if ( m_con->get_state() == JNL_Connection::STATE_ERROR )
+ {
+ seterrstr( m_con->get_errstr() );
+
+ return HTTPGET_RUN_ERROR;
+ }
+
+ if ( m_con->get_state() == JNL_Connection::STATE_CLOSED )
+ return HTTPGET_RUN_CONNECTION_CLOSED;
+
+ if ( m_http_state == 0 ) // connected, waiting for reply
+ {
+ if ( m_con->recv_lines_available() > 0 )
+ {
+ char buf[ 4096 ] = { 0 };
+ m_con->recv_line( buf, 4096 );
+ buf[ 4095 ] = 0;
+
+ if ( m_reply && getreplycode() == 100 )
+ {
+ free( m_reply );
+ m_reply = 0;
+ goto run_again;
+ }
+
+ m_reply = _strdup( buf );
+ int code = getreplycode();
+ if ( code >= 200 && code <= 206 )
+ m_http_state = 2; // proceed to read headers normally
+ else if ( code == 301 || code == 302 || code == 303 || code == 307 )
+ {
+ m_http_state = 1; // redirect city
+ }
+ else if ( code != 100 ) // in case of HTTP 100 Continue code, we'll keep looping
+ {
+ if ( accept_all_reply_codes )
+ {
+ m_http_state = 2; // proceed to read headers normally
+ }
+ else
+ {
+ seterrstr( buf );
+ m_http_state = -1;
+
+ return HTTPGET_RUN_ERROR;
+ }
+ }
+
+ cnt = 0;
+ }
+ else if ( !cnt++ )
+ goto run_again;
+ }
+
+ if ( m_http_state == 1 ) // redirect
+ {
+ char *loc = 0;
+ while ( m_con->recv_lines_available() > 0 )
+ {
+ char buf[ 4096 ] = { 0 };
+ m_con->recv_line( buf, 4096 );
+ buf[ 4095 ] = 0;
+
+ if ( !buf[ 0 ] )
+ {
+ if ( !loc )
+ {
+ m_http_state = -1;
+ return HTTPGET_RUN_ERROR;
+ }
+ else
+ break;
+ }
+
+ if ( !strncasecmp( buf, "Location:", 9 ) )
+ {
+ char *p = buf + 9;
+ while ( p && *p && *p == ' ' ) p++;
+ if ( p && *p )
+ {
+ // TODO need to make this match the request type
+ loc = _strdup( p );
+ }
+ }
+ }
+
+ if ( loc )
+ {
+ connect( loc );
+ free( loc );
+
+ return HTTPGET_RUN_OK;
+ }
+ }
+
+ /* ----- read headers ----- */
+ if ( m_http_state == 2 )
+ {
+ if ( !cnt++ && m_con->recv_lines_available() < 1 )
+ goto run_again;
+
+ while ( m_con->recv_lines_available() > 0 )
+ {
+ char buf[ 8192 ] = { 0 };
+ m_con->recv_line( buf, 8192 );
+ buf[ 8191 ] = 0;
+
+ if ( !buf[ 0 ] )
+ {
+ const char *compression = getheader( "Content-Encoding" );
+ if ( compression && !strcmp( compression, "gzip" ) )
+ {
+ zlibStream = (z_stream *)malloc( sizeof( z_stream ) );
+ zlibStream->next_in = Z_NULL;
+ zlibStream->avail_in = Z_NULL;
+ zlibStream->next_out = Z_NULL;
+ zlibStream->avail_out = Z_NULL;
+ zlibStream->zalloc = (alloc_func)0;
+ zlibStream->zfree = (free_func)0;
+ zlibStream->opaque = 0;
+
+ int z_err = inflateInit2( zlibStream, 15 + 16 /* +16 for gzip */ );
+ if ( z_err != Z_OK )
+ {
+ free( zlibStream );
+ zlibStream = 0;
+ }
+ }
+ else
+ {
+ if ( zlibStream )
+ {
+ free( zlibStream );
+ zlibStream = 0;
+ }
+ }
+ m_http_state = 3;
+ break;
+ }
+ if ( !m_recvheaders )
+ {
+ m_recvheaders_size = strlen( buf ) + 1;
+ if ( m_recvheaders_size == 0 || m_recvheaders_size == (size_t)-1 ) // check for overflow
+ {
+ m_http_state = -1;
+ return HTTPGET_RUN_ERROR;
+ }
+
+ m_recvheaders = (char *)malloc( m_recvheaders_size + 1 );
+ if ( m_recvheaders )
+ {
+ strcpy( m_recvheaders, buf ); // safe because we malloc'd specifically above
+ m_recvheaders[ m_recvheaders_size ] = 0;
+ }
+ else
+ {
+ m_http_state = -1;
+ return HTTPGET_RUN_ERROR;
+ }
+ }
+ else
+ {
+ size_t oldsize = m_recvheaders_size;
+ m_recvheaders_size += strlen( buf ) + 1;
+ if ( m_recvheaders_size + 1 < oldsize ) // check for overflow
+ {
+ m_http_state = -1;
+ return HTTPGET_RUN_ERROR;
+ }
+
+ char *n = (char *)realloc( m_recvheaders, m_recvheaders_size + 1 );
+ if ( !n )
+ {
+ m_http_state = -1;
+ return HTTPGET_RUN_ERROR;
+ }
+
+ strcpy( n + oldsize, buf ); // safe because we malloc specifially for the size
+ n[ m_recvheaders_size ] = 0; // double null terminate
+ m_recvheaders = n;
+ }
+ }
+ }
+
+ return HTTPGET_RUN_OK;
+}
+
+int JNL_HTTPGet::get_status() // returns 0 if connecting, 1 if reading headers, 2 if reading content, -1 if error.
+{
+ if ( m_http_state < 0 )
+ return HTTPGET_STATUS_ERROR;
+
+ if ( m_http_state < 2 )
+ return HTTPGET_STATUS_CONNECTING;
+
+ if ( m_http_state == 2 )
+ return HTTPGET_STATUS_READING_HEADERS;
+
+ if ( m_http_state == 3 )
+ return HTTPGET_STATUS_READING_CONTENT;
+
+ return HTTPGET_STATUS_ERROR;
+}
+
+int JNL_HTTPGet::getreplycode() // returns 0 if none yet, otherwise returns http reply code.
+{
+ if ( !m_reply )
+ return 0;
+
+ char *p = m_reply;
+
+ while ( p && *p && *p != ' ' )
+ p++; // skip over HTTP/x.x
+
+ if ( !p || !*p )
+ return 0;
+
+ return atoi( ++p );
+}
+
+size_t JNL_HTTPGet::bytes_available()
+{
+ if ( m_con && m_http_state == 3 )
+ return m_con->recv_bytes_available();
+
+ return 0;
+}
+
+size_t JNL_HTTPGet::get_bytes( char *buf, size_t len )
+{
+ if ( m_con && m_http_state == 3 )
+ {
+ if ( zlibStream )
+ {
+ // TODO: benski> we need to pick a better buffer size
+ // either alloca() and use the passed in length
+ // or malloc a buffer based on the constructor-initted buffer size
+ char temp[ 8192 ] = { 0 };
+
+ int size = (int)m_con->peek_bytes( temp, 8192 );
+ if ( size )
+ {
+ zlibStream->next_in = reinterpret_cast<Bytef *>( temp );
+ zlibStream->avail_in = (uInt)size;
+ zlibStream->next_out = reinterpret_cast<Bytef *>( buf );
+ zlibStream->avail_out = (uInt)len;
+
+ int zlib_err = inflate( zlibStream, Z_SYNC_FLUSH );
+
+ if ( zlib_err == Z_OK || zlib_err == Z_STREAM_END )
+ {
+ m_con->recv_bytes( 0, size - zlibStream->avail_in ); // since we only peeked above
+ return len - zlibStream->avail_out;
+ }
+ else
+ return 0; // TODO: should we do something else here?
+ }
+ }
+ else
+ return m_con->recv_bytes( buf, len );
+ }
+
+ return 0;
+}
+
+size_t JNL_HTTPGet::peek_bytes( char *buf, size_t len )
+{
+ if ( m_con && m_http_state == 3 )
+ {
+ if ( zlibStream )
+ return 0; // TODO: benski> how are we going to do peek_bytes, since the inflater saves state?
+ else
+ return m_con->peek_bytes( buf, len );
+ }
+
+ return 0;
+}
+
+uint64_t JNL_HTTPGet::content_length()
+{
+ const char *p = getheader( "content-length" );
+ if ( p && *p )
+ return strtoull( p, 0, 10 );
+ else
+ {
+ // TODO need to check this further for reliability!
+ // Helps to handle responses without content-length
+ if ( m_recvheaders_size > 0 && bytes_available() > 0 )
+ return bytes_available() - m_recvheaders_size;
+ }
+ return 0;
+}
+
+void JNL_HTTPGet::seterrstr( const char *str )
+{
+ if ( m_errstr )
+ free( m_errstr );
+
+ m_errstr = _strdup( str );
+}
+
+void JNL_HTTPGet::AllowCompression()
+{
+ allowCompression = true;
+}
+
+void JNL_HTTPGet::reset_headers()
+{
+ if ( m_sendheaders )
+ {
+ free( m_sendheaders );
+ m_sendheaders = 0;
+ }
+}
+
+void JNL_HTTPGet::set_accept_all_reply_codes()
+{
+ accept_all_reply_codes = true;
+}
+
+void JNL_HTTPGet::set_persistent()
+{
+ persistent = true;
+}