minihttp/example2.cpp at master · fgenesis/minihttp · GitHub

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// Example 2: Sockets + overload API for better control

#include <stdio.h>

#include <stdlib.h>

#include <signal.h>

#include "minihttp.h"

// Overloaded socket class that handles incoming data.

// This one just prints to standard output.

class HttpDumpSocket : public minihttp::HttpSocket

{

public:

virtual ~HttpDumpSocket() {}

protected:

virtual void _OnClose()

{

puts("_OnClose()");

minihttp::HttpSocket::_OnClose();

}

virtual void _OnOpen()

{

puts("_OnOpen()");

char buf[1024] = { 0 };

minihttp::SSLResult sr = verifySSL(buf, sizeof(buf));

printf("SSL status flags (0 is good): 0x%x. Info: %s\n", sr, buf);

minihttp::HttpSocket::_OnOpen();

}

virtual void _OnRequestDone()

{

printf("_OnRequestDone(): %s\n", GetCurrentRequest().resource.c_str());

// Do *NOT* call close() in here!

}

virtual void _OnRecv(void *buf, unsigned int size)

{

if(!size)

return;

printf("===START==[Status:%d, Size:%d]======\n", GetStatusCode(), size);

fwrite(buf, 1, size, stdout);

puts("\n===END====================");

}

};

int main(int argc, char *argv[])

{

#ifdef SIGPIPE

// On *NIX systems, don't signal writing to a closed socket.

signal(SIGPIPE, SIG_IGN);

#endif

// minihttp::Download() in example 1 does this automatically,

// but if this function is not used this has to be called first to init networking properly.

minihttp::InitNetwork();

atexit(minihttp::StopNetwork);

HttpDumpSocket *ht = new HttpDumpSocket;

ht->SetKeepAlive(3);

ht->SetBufsizeIn(64 * 1024);

ht->SetUserAgent("minihttp"); // Let the server know who we are. This is optional but it seems that some servers check that this is set.

// HTTP GET

ht->Download("example.com");

ht->Download("http://www.ietf.org/rfc/rfc2616.txt");

// Downloads requested in succession will be queued and processed one after another

// HTTP GET with SSL, if SSL support is enabled:

ht->Download("https://example.com"); // SSL connection

ht->Download("raw.githubusercontent.com/fgenesis/minihttp/master/minihttp.h"); // transparent HTTP -> HTTPS redirection

// Example HTTP POST request:

minihttp::POST post;

post.add("a", "b");

post.add("x", "y");

post.add("long string", "possibly invalid data: /x/&$+*#'?!;");

post.add("normal", "data");

ht->Download("https://httpbin.org/post", NULL, NULL, &post);

minihttp::SocketSet ss;

ss.add(ht, true); // true: Delete socket if closed and no task left.

// This is non-blocking and could be done in background or by another thread.

// Hogs quite some CPU doing it this way, though.

while(ss.size())

ss.update();

return 0;

}

minihttp/example2.cpp at master · fgenesis/minihttp · GitHub

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