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// HTTPResponseParser_file.cpp
// Implements a test that feeds file contents into a cHTTPResponseParser instance and prints all callbacks
#include "Globals.h"
#include "HTTP/HTTPResponseParser.h"
/** Maximum size of the input buffer, through which the file is read */
static const size_t MAX_BUF = 4096;
class cCallbacks:
public cHTTPResponseParser::cCallbacks
{
typedef cHTTPResponseParser::cCallbacks Super;
public:
cCallbacks(void)
{
printf("cCallbacks created\n");
}
// cHTTPResponseParser::cCallbacks overrides:
virtual void OnError(const AString & a_ErrorDescription) override
{
printf("Error: \"%s\"\n", a_ErrorDescription.c_str());
}
/** Called when the status line is fully parsed. */
virtual void OnStatusLine(const AString & a_StatusLine) override
{
printf("Status line: \"%s\"\n", a_StatusLine.c_str());
}
/** Called when a single header line is parsed. */
virtual void OnHeaderLine(const AString & a_Key, const AString & a_Value) override
{
printf("Header line: \"%s\": \"%s\"\n", a_Key.c_str(), a_Value.c_str());
}
/** Called when all the headers have been parsed. */
virtual void OnHeadersFinished(void) override
{
printf("Headers finished\n");
}
/** Called for each chunk of the incoming body data. */
virtual void OnBodyData(const void * a_Data, size_t a_Size) override
{
AString hexDump;
CreateHexDump(hexDump, a_Data, a_Size, 16);
printf("Body data: %u bytes\n%s", static_cast<unsigned>(a_Size), hexDump.c_str());
}
virtual void OnBodyFinished(void) override
{
printf("Body finished\n");
}
};
int main(int argc, char * argv[])
{
printf("HTTPResponseParser_file beginning\n");
// Open the input file:
if (argc <= 1)
{
printf("Usage: %s <filename> [<buffersize>]\n", argv[0]);
return 1;
}
FILE * f;
if (strcmp(argv[1], "-") == 0)
{
f = stdin;
}
else
{
f = fopen(argv[1], "rb");
if (f == nullptr)
{
printf("Cannot open file \"%s\". Aborting.\n", argv[1]);
return 2;
}
}
// If a third param is present, use it as the buffer size
size_t bufSize = MAX_BUF;
if (argc >= 3)
{
if (!StringToInteger(argv[2], bufSize) || (bufSize == 0))
{
bufSize = MAX_BUF;
printf("\"%s\" is not a valid buffer size, using the default of %u instead.\n", argv[2], static_cast<unsigned>(bufSize));
}
if (bufSize > MAX_BUF)
{
bufSize = MAX_BUF;
printf("\"%s\" is too large, maximum buffer size is %u. Using the size %u instead.\n", argv[2], static_cast<unsigned>(bufSize), static_cast<unsigned>(bufSize));
}
}
// Feed the file contents into the parser:
cCallbacks callbacks;
cHTTPResponseParser parser(callbacks);
while (!feof(f))
{
char buf[MAX_BUF];
auto numBytes = fread(buf, 1, bufSize, f);
if (numBytes == 0)
{
printf("Read 0 bytes from file (EOF?), terminating\n");
break;
}
auto numLeft = parser.Parse(buf, numBytes);
if (numLeft == AString::npos)
{
printf("Parser indicates there was an error, terminating parsing.\n");
break;
}
ASSERT(numLeft <= numBytes);
if (numLeft > 0)
{
printf("Parser indicates stream end, but there's more data (at least %u bytes) in the file.\n", static_cast<unsigned>(numLeft));
}
}
if (!parser.IsFinished())
{
printf("Parser indicates an incomplete stream.\n");
}
// Close the input file:
if (f != stdin)
{
fclose(f);
}
return 0;
}
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