333 lines
9.6 KiB
C
333 lines
9.6 KiB
C
/***************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
* Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
*
|
|
* This software is licensed as described in the file COPYING, which
|
|
* you should have received as part of this distribution. The terms
|
|
* are also available at https://curl.haxx.se/docs/copyright.html.
|
|
*
|
|
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
|
|
* copies of the Software, and permit persons to whom the Software is
|
|
* furnished to do so, under the terms of the COPYING file.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
***************************************************************************/
|
|
|
|
#include "curl_setup.h"
|
|
|
|
#ifdef CURL_DOES_CONVERSIONS
|
|
|
|
#include <curl/curl.h>
|
|
|
|
#include "non-ascii.h"
|
|
#include "formdata.h"
|
|
#include "sendf.h"
|
|
#include "urldata.h"
|
|
#include "multiif.h"
|
|
|
|
#include "curl_memory.h"
|
|
/* The last #include file should be: */
|
|
#include "memdebug.h"
|
|
|
|
#ifdef HAVE_ICONV
|
|
#include <iconv.h>
|
|
/* set default codesets for iconv */
|
|
#ifndef CURL_ICONV_CODESET_OF_NETWORK
|
|
#define CURL_ICONV_CODESET_OF_NETWORK "ISO8859-1"
|
|
#endif
|
|
#ifndef CURL_ICONV_CODESET_FOR_UTF8
|
|
#define CURL_ICONV_CODESET_FOR_UTF8 "UTF-8"
|
|
#endif
|
|
#define ICONV_ERROR (size_t)-1
|
|
#endif /* HAVE_ICONV */
|
|
|
|
/*
|
|
* Curl_convert_clone() returns a malloced copy of the source string (if
|
|
* returning CURLE_OK), with the data converted to network format.
|
|
*/
|
|
CURLcode Curl_convert_clone(struct Curl_easy *data,
|
|
const char *indata,
|
|
size_t insize,
|
|
char **outbuf)
|
|
{
|
|
char *convbuf;
|
|
CURLcode result;
|
|
|
|
convbuf = malloc(insize);
|
|
if(!convbuf)
|
|
return CURLE_OUT_OF_MEMORY;
|
|
|
|
memcpy(convbuf, indata, insize);
|
|
result = Curl_convert_to_network(data, convbuf, insize);
|
|
if(result) {
|
|
free(convbuf);
|
|
return result;
|
|
}
|
|
|
|
*outbuf = convbuf; /* return the converted buffer */
|
|
|
|
return CURLE_OK;
|
|
}
|
|
|
|
/*
|
|
* Curl_convert_to_network() is an internal function for performing ASCII
|
|
* conversions on non-ASCII platforms. It converts the buffer _in place_.
|
|
*/
|
|
CURLcode Curl_convert_to_network(struct Curl_easy *data,
|
|
char *buffer, size_t length)
|
|
{
|
|
if(data && data->set.convtonetwork) {
|
|
/* use translation callback */
|
|
CURLcode result;
|
|
Curl_set_in_callback(data, true);
|
|
result = data->set.convtonetwork(buffer, length);
|
|
Curl_set_in_callback(data, false);
|
|
if(result) {
|
|
failf(data,
|
|
"CURLOPT_CONV_TO_NETWORK_FUNCTION callback returned %d: %s",
|
|
(int)result, curl_easy_strerror(result));
|
|
}
|
|
|
|
return result;
|
|
}
|
|
else {
|
|
#ifdef HAVE_ICONV
|
|
/* do the translation ourselves */
|
|
iconv_t tmpcd = (iconv_t) -1;
|
|
iconv_t *cd = &tmpcd;
|
|
char *input_ptr, *output_ptr;
|
|
size_t in_bytes, out_bytes, rc;
|
|
|
|
/* open an iconv conversion descriptor if necessary */
|
|
if(data)
|
|
cd = &data->outbound_cd;
|
|
if(*cd == (iconv_t)-1) {
|
|
*cd = iconv_open(CURL_ICONV_CODESET_OF_NETWORK,
|
|
CURL_ICONV_CODESET_OF_HOST);
|
|
if(*cd == (iconv_t)-1) {
|
|
failf(data,
|
|
"The iconv_open(\"%s\", \"%s\") call failed with errno %i: %s",
|
|
CURL_ICONV_CODESET_OF_NETWORK,
|
|
CURL_ICONV_CODESET_OF_HOST,
|
|
errno, strerror(errno));
|
|
return CURLE_CONV_FAILED;
|
|
}
|
|
}
|
|
/* call iconv */
|
|
input_ptr = output_ptr = buffer;
|
|
in_bytes = out_bytes = length;
|
|
rc = iconv(*cd, &input_ptr, &in_bytes,
|
|
&output_ptr, &out_bytes);
|
|
if(!data)
|
|
iconv_close(tmpcd);
|
|
if((rc == ICONV_ERROR) || (in_bytes != 0)) {
|
|
failf(data,
|
|
"The Curl_convert_to_network iconv call failed with errno %i: %s",
|
|
errno, strerror(errno));
|
|
return CURLE_CONV_FAILED;
|
|
}
|
|
#else
|
|
failf(data, "CURLOPT_CONV_TO_NETWORK_FUNCTION callback required");
|
|
return CURLE_CONV_REQD;
|
|
#endif /* HAVE_ICONV */
|
|
}
|
|
|
|
return CURLE_OK;
|
|
}
|
|
|
|
/*
|
|
* Curl_convert_from_network() is an internal function for performing ASCII
|
|
* conversions on non-ASCII platforms. It converts the buffer _in place_.
|
|
*/
|
|
CURLcode Curl_convert_from_network(struct Curl_easy *data,
|
|
char *buffer, size_t length)
|
|
{
|
|
if(data && data->set.convfromnetwork) {
|
|
/* use translation callback */
|
|
CURLcode result;
|
|
Curl_set_in_callback(data, true);
|
|
result = data->set.convfromnetwork(buffer, length);
|
|
Curl_set_in_callback(data, false);
|
|
if(result) {
|
|
failf(data,
|
|
"CURLOPT_CONV_FROM_NETWORK_FUNCTION callback returned %d: %s",
|
|
(int)result, curl_easy_strerror(result));
|
|
}
|
|
|
|
return result;
|
|
}
|
|
else {
|
|
#ifdef HAVE_ICONV
|
|
/* do the translation ourselves */
|
|
iconv_t tmpcd = (iconv_t) -1;
|
|
iconv_t *cd = &tmpcd;
|
|
char *input_ptr, *output_ptr;
|
|
size_t in_bytes, out_bytes, rc;
|
|
|
|
/* open an iconv conversion descriptor if necessary */
|
|
if(data)
|
|
cd = &data->inbound_cd;
|
|
if(*cd == (iconv_t)-1) {
|
|
*cd = iconv_open(CURL_ICONV_CODESET_OF_HOST,
|
|
CURL_ICONV_CODESET_OF_NETWORK);
|
|
if(*cd == (iconv_t)-1) {
|
|
failf(data,
|
|
"The iconv_open(\"%s\", \"%s\") call failed with errno %i: %s",
|
|
CURL_ICONV_CODESET_OF_HOST,
|
|
CURL_ICONV_CODESET_OF_NETWORK,
|
|
errno, strerror(errno));
|
|
return CURLE_CONV_FAILED;
|
|
}
|
|
}
|
|
/* call iconv */
|
|
input_ptr = output_ptr = buffer;
|
|
in_bytes = out_bytes = length;
|
|
rc = iconv(*cd, &input_ptr, &in_bytes,
|
|
&output_ptr, &out_bytes);
|
|
if(!data)
|
|
iconv_close(tmpcd);
|
|
if((rc == ICONV_ERROR) || (in_bytes != 0)) {
|
|
failf(data,
|
|
"Curl_convert_from_network iconv call failed with errno %i: %s",
|
|
errno, strerror(errno));
|
|
return CURLE_CONV_FAILED;
|
|
}
|
|
#else
|
|
failf(data, "CURLOPT_CONV_FROM_NETWORK_FUNCTION callback required");
|
|
return CURLE_CONV_REQD;
|
|
#endif /* HAVE_ICONV */
|
|
}
|
|
|
|
return CURLE_OK;
|
|
}
|
|
|
|
/*
|
|
* Curl_convert_from_utf8() is an internal function for performing UTF-8
|
|
* conversions on non-ASCII platforms.
|
|
*/
|
|
CURLcode Curl_convert_from_utf8(struct Curl_easy *data,
|
|
char *buffer, size_t length)
|
|
{
|
|
if(data && data->set.convfromutf8) {
|
|
/* use translation callback */
|
|
CURLcode result;
|
|
Curl_set_in_callback(data, true);
|
|
result = data->set.convfromutf8(buffer, length);
|
|
Curl_set_in_callback(data, false);
|
|
if(result) {
|
|
failf(data,
|
|
"CURLOPT_CONV_FROM_UTF8_FUNCTION callback returned %d: %s",
|
|
(int)result, curl_easy_strerror(result));
|
|
}
|
|
|
|
return result;
|
|
}
|
|
else {
|
|
#ifdef HAVE_ICONV
|
|
/* do the translation ourselves */
|
|
iconv_t tmpcd = (iconv_t) -1;
|
|
iconv_t *cd = &tmpcd;
|
|
char *input_ptr;
|
|
char *output_ptr;
|
|
size_t in_bytes, out_bytes, rc;
|
|
|
|
/* open an iconv conversion descriptor if necessary */
|
|
if(data)
|
|
cd = &data->utf8_cd;
|
|
if(*cd == (iconv_t)-1) {
|
|
*cd = iconv_open(CURL_ICONV_CODESET_OF_HOST,
|
|
CURL_ICONV_CODESET_FOR_UTF8);
|
|
if(*cd == (iconv_t)-1) {
|
|
failf(data,
|
|
"The iconv_open(\"%s\", \"%s\") call failed with errno %i: %s",
|
|
CURL_ICONV_CODESET_OF_HOST,
|
|
CURL_ICONV_CODESET_FOR_UTF8,
|
|
errno, strerror(errno));
|
|
return CURLE_CONV_FAILED;
|
|
}
|
|
}
|
|
/* call iconv */
|
|
input_ptr = output_ptr = buffer;
|
|
in_bytes = out_bytes = length;
|
|
rc = iconv(*cd, &input_ptr, &in_bytes,
|
|
&output_ptr, &out_bytes);
|
|
if(!data)
|
|
iconv_close(tmpcd);
|
|
if((rc == ICONV_ERROR) || (in_bytes != 0)) {
|
|
failf(data,
|
|
"The Curl_convert_from_utf8 iconv call failed with errno %i: %s",
|
|
errno, strerror(errno));
|
|
return CURLE_CONV_FAILED;
|
|
}
|
|
if(output_ptr < input_ptr) {
|
|
/* null terminate the now shorter output string */
|
|
*output_ptr = 0x00;
|
|
}
|
|
#else
|
|
failf(data, "CURLOPT_CONV_FROM_UTF8_FUNCTION callback required");
|
|
return CURLE_CONV_REQD;
|
|
#endif /* HAVE_ICONV */
|
|
}
|
|
|
|
return CURLE_OK;
|
|
}
|
|
|
|
/*
|
|
* Init conversion stuff for a Curl_easy
|
|
*/
|
|
void Curl_convert_init(struct Curl_easy *data)
|
|
{
|
|
#if defined(CURL_DOES_CONVERSIONS) && defined(HAVE_ICONV)
|
|
/* conversion descriptors for iconv calls */
|
|
data->outbound_cd = (iconv_t)-1;
|
|
data->inbound_cd = (iconv_t)-1;
|
|
data->utf8_cd = (iconv_t)-1;
|
|
#else
|
|
(void)data;
|
|
#endif /* CURL_DOES_CONVERSIONS && HAVE_ICONV */
|
|
}
|
|
|
|
/*
|
|
* Setup conversion stuff for a Curl_easy
|
|
*/
|
|
void Curl_convert_setup(struct Curl_easy *data)
|
|
{
|
|
data->inbound_cd = iconv_open(CURL_ICONV_CODESET_OF_HOST,
|
|
CURL_ICONV_CODESET_OF_NETWORK);
|
|
data->outbound_cd = iconv_open(CURL_ICONV_CODESET_OF_NETWORK,
|
|
CURL_ICONV_CODESET_OF_HOST);
|
|
data->utf8_cd = iconv_open(CURL_ICONV_CODESET_OF_HOST,
|
|
CURL_ICONV_CODESET_FOR_UTF8);
|
|
}
|
|
|
|
/*
|
|
* Close conversion stuff for a Curl_easy
|
|
*/
|
|
|
|
void Curl_convert_close(struct Curl_easy *data)
|
|
{
|
|
#ifdef HAVE_ICONV
|
|
/* close iconv conversion descriptors */
|
|
if(data->inbound_cd != (iconv_t)-1) {
|
|
iconv_close(data->inbound_cd);
|
|
}
|
|
if(data->outbound_cd != (iconv_t)-1) {
|
|
iconv_close(data->outbound_cd);
|
|
}
|
|
if(data->utf8_cd != (iconv_t)-1) {
|
|
iconv_close(data->utf8_cd);
|
|
}
|
|
#else
|
|
(void)data;
|
|
#endif /* HAVE_ICONV */
|
|
}
|
|
|
|
#endif /* CURL_DOES_CONVERSIONS */
|