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Add optional fd parameter to sendHTTPRequest() in order to directly write received data in a buffer and not in an intermediate buffer

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This commit is contained in:
Grégory Soutadé 2022-03-17 21:55:02 +01:00
parent 2ce6142596
commit 1221b2a95a
7 changed files with 55 additions and 18 deletions
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3
include/drmprocessorclient.h
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@ -98,10 +98,11 @@ namespace gourou
* @param POSTData POST data if needed, if not set, a GET request is done
* @param contentType Optional content type of POST Data
* @param responseHeaders Optional Response headers of HTTP request
* @param fd Optional file descriptor to write request result
*
* @return data of HTTP response
*/
virtual std::string sendHTTPRequest(const std::string& URL, const std::string& POSTData=std::string(""), const std::string& contentType=std::string(""), std::map<std::string, std::string>* responseHeaders=0) = 0;
virtual std::string sendHTTPRequest(const std::string& URL, const std::string& POSTData=std::string(""), const std::string& contentType=std::string(""), std::map<std::string, std::string>* responseHeaders=0, int fd=0) = 0;
};
class RSAInterface

9
include/libgourou.h
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@ -130,14 +130,15 @@ namespace gourou
/**
* @brief Send HTTP (GET or POST) request
*
* @param URL HTTP URL
* @param POSTData POST data if needed, if not set, a GET request is done
* @param contentType Optional content type of POST Data
* @param URL HTTP URL
* @param POSTData POST data if needed, if not set, a GET request is done
* @param contentType Optional content type of POST Data
* @param responseHeaders Optional Response headers of HTTP request
* @param fd Optional File descriptor to write received data
*
* @return data of HTTP response
*/
ByteArray sendRequest(const std::string& URL, const std::string& POSTData=std::string(), const char* contentType=0, std::map<std::string, std::string>* responseHeaders=0);
ByteArray sendRequest(const std::string& URL, const std::string& POSTData=std::string(), const char* contentType=0, std::map<std::string, std::string>* responseHeaders=0, int fd=0);
/**
* @brief Send HTTP POST request to URL with document as POSTData

16
include/libgourou_common.h
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@ -287,15 +287,27 @@ namespace gourou
}
/**
* @brief Write data in a file. If it already exists, it's truncated
* @brief Open a file descriptor on path. If it already exists, it's truncated
*
* @return Created fd, must be closed
*/
static inline void writeFile(std::string path, const unsigned char* data, unsigned int length)
static inline int createNewFile(std::string path)
{
int fd = open(path.c_str(), O_CREAT|O_WRONLY|O_TRUNC, S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH);
if (fd <= 0)
EXCEPTION(GOUROU_FILE_ERROR, "Unable to create " << path);
return fd;
}
/**
* @brief Write data in a file. If it already exists, it's truncated
*/
static inline void writeFile(std::string path, const unsigned char* data, unsigned int length)
{
int fd = createNewFile(path);
if (write(fd, data, length) != length)
EXCEPTION(GOUROU_FILE_ERROR, "Write error for file " << path);

14
src/libgourou.cpp
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@ -300,12 +300,14 @@ namespace gourou
appendTextElem(root, "adept:expiration", buffer);
}
ByteArray DRMProcessor::sendRequest(const std::string& URL, const std::string& POSTdata, const char* contentType, std::map<std::string, std::string>* responseHeaders)
ByteArray DRMProcessor::sendRequest(const std::string& URL, const std::string& POSTdata, const char* contentType, std::map<std::string, std::string>* responseHeaders, int fd)
{
if (contentType == 0)
contentType = "";
std::string reply = client->sendHTTPRequest(URL, POSTdata, contentType, responseHeaders);
std::string reply = client->sendHTTPRequest(URL, POSTdata, contentType, responseHeaders, fd);
if (fd) return ByteArray();
pugi::xml_document replyDoc;
replyDoc.load_buffer(reply.c_str(), reply.length());
@ -589,10 +591,12 @@ namespace gourou
EXCEPTION(DW_NO_ITEM, "No item");
std::map<std::string, std::string> headers;
ByteArray replyData = sendRequest(item->getDownloadURL(), "", 0, &headers);
writeFile(path, replyData);
int fd = createNewFile(path);
sendRequest(item->getDownloadURL(), "", 0, &headers, fd);
close(fd);
GOUROU_LOG(INFO, "Download into " << path);

27
utils/drmprocessorclientimpl.cpp
View File

@ -137,6 +137,17 @@ static size_t curlRead(void *data, size_t size, size_t nmemb, void *userp)
return size*nmemb;
}
static size_t curlReadFd(void *data, size_t size, size_t nmemb, void *userp)
{
int fd = *(int*) userp;
size_t res = write(fd, data, size*nmemb);
downloadedBytes += res;
return res;
}
static size_t curlHeaders(char *buffer, size_t size, size_t nitems, void *userdata)
{
std::map<std::string, std::string>* responseHeaders = (std::map<std::string, std::string>*)userdata;
@ -162,7 +173,7 @@ static size_t curlHeaders(char *buffer, size_t size, size_t nitems, void *userda
return size*nitems;
}
std::string DRMProcessorClientImpl::sendHTTPRequest(const std::string& URL, const std::string& POSTData, const std::string& contentType, std::map<std::string, std::string>* responseHeaders)
std::string DRMProcessorClientImpl::sendHTTPRequest(const std::string& URL, const std::string& POSTData, const std::string& contentType, std::map<std::string, std::string>* responseHeaders, int fd)
{
gourou::ByteArray replyData;
std::map<std::string, std::string> localHeaders;
@ -201,9 +212,17 @@ std::string DRMProcessorClientImpl::sendHTTPRequest(const std::string& URL, cons
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, POSTData.data());
}
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curlRead);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void*)&replyData);
if (fd)
{
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curlReadFd);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void*)&fd);
}
else
{
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curlRead);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void*)&replyData);
}
curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, curlHeaders);
curl_easy_setopt(curl, CURLOPT_HEADERDATA, (void*)responseHeaders);

2
utils/drmprocessorclientimpl.h
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@ -46,7 +46,7 @@ public:
virtual void randBytes(unsigned char* bytesOut, unsigned int length);
/* HTTP interface */
virtual std::string sendHTTPRequest(const std::string& URL, const std::string& POSTData=std::string(""), const std::string& contentType=std::string(""), std::map<std::string, std::string>* responseHeaders=0);
virtual std::string sendHTTPRequest(const std::string& URL, const std::string& POSTData=std::string(""), const std::string& contentType=std::string(""), std::map<std::string, std::string>* responseHeaders=0, int fd=0);
virtual void RSAPrivateEncrypt(const unsigned char* RSAKey, unsigned int RSAKeyLength,
const RSA_KEY_TYPE keyType, const std::string& password,

2
utils/utils_common.cpp
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@ -106,7 +106,7 @@ void fileCopy(const char* in, const char* out)
if (!fdIn)
EXCEPTION(gourou::CLIENT_FILE_ERROR, "Unable to open " << in);
fdOut = open(out, O_WRONLY|O_CREAT|O_TRUNC, S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH);
fdOut = gourou::createNewFile(out);
if (!fdOut)
{