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/* $Id: test_ncbi_http_get.c,v 6.19 2008/11/10 17:14:42 kazimird Exp $
* ===========================================================================
*
* PUBLIC DOMAIN NOTICE
* National Center for Biotechnology Information
*
* This software/database is a "United States Government Work" under the
* terms of the United States Copyright Act. It was written as part of
* the author's official duties as a United States Government employee and
* thus cannot be copyrighted. This software/database is freely available
* to the public for use. The National Library of Medicine and the U.S.
* Government have not placed any restriction on its use or reproduction.
*
* Although all reasonable efforts have been taken to ensure the accuracy
* and reliability of the software and data, the NLM and the U.S.
* Government do not and cannot warrant the performance or results that
* may be obtained by using this software or data. The NLM and the U.S.
* Government disclaim all warranties, express or implied, including
* warranties of performance, merchantability or fitness for any particular
* purpose.
*
* Please cite the author in any work or product based on this material.
*
* ===========================================================================
*
* Author: Anton Lavrentiev
*
* File Description:
* Retrieve a Web document via HTTP
*
*/
#include "../ncbi_ansi_ext.h"
#include "../ncbi_priv.h"
#include <connect/ncbi_gnutls.h>
#include <connect/ncbi_http_connector.h>
#include <connect/ncbi_util.h>
#include <errno.h>
#include <stdlib.h>
#include <time.h>
#ifdef NCBI_OS_UNIX
# include <unistd.h>
#endif
/* This header must go last */
#include "test_assert.h"
int main(int argc, char* argv[])
{
CONNECTOR connector;
SConnNetInfo* net_info;
char blk[512];
EIO_Status status;
THCC_Flags flags;
CONN conn;
FILE* fp;
time_t t;
size_t n;
CORE_SetLOGFormatFlags(fLOG_None | fLOG_Level |
fLOG_OmitNoteLevel | fLOG_DateTime);
CORE_SetLOGFILE(stderr, 0/*false*/);
if (argc < 2 || !*argv[1])
CORE_LOG(eLOG_Fatal, "URL has to be supplied on the command line");
if (argc > 3)
CORE_LOG(eLOG_Fatal, "Command cannot take more than 2 arguments");
if (argc == 3) {
fp = strcmp(argv[2], "-") == 0 ? stdin : fopen(argv[2], "rb");
if (!fp) {
CORE_LOGF_ERRNO(eLOG_Error, errno, ("Cannot open \"%s\"",
argv[2] ? argv[2] : ""));
}
} else
fp = 0;
ConnNetInfo_GetValue(0, "RECONNECT", blk, 32, "");
if (*blk && (strcmp (blk, "1") == 0 ||
strcasecmp(blk, "ON") == 0 ||
strcasecmp(blk, "YES") == 0 ||
strcasecmp(blk, "TRUE") == 0)) {
CORE_LOG(eLOG_Note, "Reconnect mode acknowledged");
flags = fHCC_AutoReconnect;
} else
flags = 0;
ConnNetInfo_GetValue(0, "USESSL", blk, 32, "");
if (*blk && (strcmp (blk, "1") == 0 ||
strcasecmp(blk, "ON") == 0 ||
strcasecmp(blk, "YES") == 0 ||
strcasecmp(blk, "TRUE") == 0)) {
#ifdef HAVE_LIBGNUTLS
CORE_LOG(eLOG_Note, "SSL request acknowledged");
SOCK_SetupSSL(NcbiSetupGnuTls);
#else
CORE_LOG(eLOG_Warning, "SSL requested but may not be supported");
#endif /*HAVE_LIBGNUTLS*/
}
CORE_LOG(eLOG_Note, "Creating network info structure");
if (!(net_info = ConnNetInfo_Create(0)))
CORE_LOG(eLOG_Fatal, "Cannot create network info structure");
CORE_LOGF(eLOG_Note, ("Parsing URL \"%s\"", argv[1]));
if (!ConnNetInfo_ParseURL(net_info, argv[1]))
CORE_LOG(eLOG_Fatal, "URL parse failed");
CORE_LOGF(eLOG_Note, ("Creating HTTP%s connector",
&"S"[net_info->scheme != eURL_Https]));
if (!(connector = HTTP_CreateConnector(net_info, 0, flags)))
CORE_LOG(eLOG_Fatal, "Cannot create HTTP connector");
CORE_LOG(eLOG_Note, "Creating connection");
if (CONN_Create(connector, &conn) != eIO_Success)
CORE_LOG(eLOG_Fatal, "Cannot create connection");
CONN_SetTimeout(conn, eIO_Open, net_info->timeout);
CONN_SetTimeout(conn, eIO_ReadWrite, net_info->timeout);
while (fp && !feof(fp)) {
n = fread(blk, 1, sizeof(blk), fp);
status = CONN_Write(conn, blk, n, &n, eIO_WritePersist);
if (status != eIO_Success) {
CORE_LOGF(eLOG_Fatal, ("Write error: %s", IO_StatusStr(status)));
}
}
if (fp)
fclose(fp);
t = time(0);
do {
status = CONN_Wait(conn, eIO_Read, net_info->timeout);
if (status != eIO_Success) {
if (status != eIO_Timeout)
break;
if ((net_info->timeout &&
(net_info->timeout->sec | net_info->timeout->usec))
|| (unsigned long)(time(0) - t) > DEF_CONN_TIMEOUT)
CORE_LOG(eLOG_Fatal, "Timed out");
#ifdef NCBI_OS_UNIX
usleep(500);
#endif /*NCBI_OS_UNIX*/
continue;
}
status = CONN_ReadLine(conn, blk, sizeof(blk), &n);
if (status == eIO_Timeout)
continue;
if (status != eIO_Success && status != eIO_Closed)
CORE_LOGF(eLOG_Fatal, ("Read error: %s", IO_StatusStr(status)));
if (n == sizeof(blk))
CORE_LOGF(eLOG_Warning, ("Line too long, continuing..."));
if (n) {
fwrite(blk, 1, n, stdout);
fputc('\n', stdout);
fflush(stdout);
}
} while (status == eIO_Success || status == eIO_Timeout);
ConnNetInfo_Destroy(net_info);
CORE_LOG(eLOG_Note, "Closing connection");
CONN_Close(conn);
CORE_LOG(eLOG_Note, "Completed");
CORE_SetLOG(0);
return 0;
}
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