ultimatepp/uppsrc/Core/Web.h
cxl 7b7b87476b Core: developing Web
git-svn-id: svn://ultimatepp.org/upp/trunk@4744 f0d560ea-af0d-0410-9eb7-867de7ffcac7
2012-04-03 18:26:28 +00:00

300 lines
12 KiB
C++

String FormatIP(dword _ip);
String UrlEncode(const String& s);
String UrlEncode(const String& s, const char *specials);
String UrlDecode(const char *b, const char *e);
inline String UrlDecode(const String& s) { return UrlDecode(s.Begin(), s.End() ); }
String Base64Encode(const char *b, const char *e);
inline String Base64Encode(const String& data) { return Base64Encode(data.Begin(), data.End()); }
String Base64Decode(const char *b, const char *e);
inline String Base64Decode(const String& data) { return Base64Decode(data.Begin(), data.End()); }
enum { WAIT_READ = 1, WAIT_WRITE = 2, WAIT_EXCEPTION = 4, WAIT_ALL = 7 };
class TcpSocket {
enum { BUFFERSIZE = 512 };
SOCKET socket;
char buffer[BUFFERSIZE];
char *ptr;
char *end;
bool is_eof;
bool is_error;
bool is_abort;
bool ipv6;
bool global;
int timeout;
int waitstep;
int done;
int errorcode;
String errordesc;
SOCKET AcceptRaw(dword *ipaddr, int timeout_msec);
bool Open(int family, int type, int protocol);
int Recv(void *buffer, int maxlen);
int Send(const void *buffer, int maxlen);
void ReadBuffer();
int Get_();
int Peek_();
void Reset();
void SetSockError(const char *context, const char *errdesc);
void SetSockError(const char *context);
static int GetErrorCode();
static bool WouldBlock();
public:
Callback WhenWait;
static String GetHostName();
int GetDone() const { return done; }
static void Init();
bool IsOpen() const { return socket != INVALID_SOCKET; }
bool IsEof() const { return is_eof && ptr == end; }
bool IsError() const { return is_error; }
void ClearError() { is_error = false; errorcode = 0; errordesc.Clear(); }
int GetError() const { return errorcode; }
String GetErrorDesc() const { return errordesc; }
void Abort() { is_abort = true; }
bool IsAbort() const { return is_abort; }
void ClearAbort() { is_abort = false; }
SOCKET GetSOCKET() const { return socket; }
String GetPeerAddr() const;
void Attach(SOCKET socket);
bool Connect(const char *host, int port);
bool Listen(int port, int listen_count, bool ipv6 = false, bool reuse = true);
bool Accept(TcpSocket& listen_socket);
void Close();
void Shutdown();
void NoDelay();
void Linger(int msecs);
void NoLinger() { Linger(Null); }
void Reuse(bool reuse = true);
bool Wait(dword events);
bool WaitRead() { return Wait(WAIT_READ); }
bool WaitWrite() { return Wait(WAIT_WRITE); }
int Peek() { return ptr < end ? *ptr : Peek_(); }
int Term() { return Peek(); }
int Get() { return ptr < end ? *ptr++ : Get_(); }
int Get(void *buffer, int len);
String Get(int len);
int GetAll(void *buffer, int len) { return Get(buffer, len) == len; }
String GetAll(int len) { String s = Get(len); return s.GetCount() == len ? s : String::GetVoid(); }
String GetLine(int maxlen = 2000000);
int Put(const char *s, int len);
int Put(const String& s) { return Put(s.Begin(), s.GetLength()); }
bool PutAll(const char *s, int len) { return Put(s, len) == len; }
bool PutAll(const String& s) { return Put(s) == s.GetCount(); }
TcpSocket& Timeout(int ms) { timeout = ms; global = false; return *this; }
TcpSocket& Blocking() { return Timeout(Null); }
TcpSocket();
~TcpSocket() { Close(); }
};
class SocketWaitEvent {
Vector< Tuple2<int, dword> > socket;
fd_set read[1], write[1], exception[1];
public:
void Clear() { socket.Clear(); }
void Add(SOCKET s, dword events = WAIT_ALL) { socket.Add(MakeTuple((int)s, events)); }
void Add(TcpSocket& s, dword events = WAIT_ALL) { Add(s.GetSOCKET(), events); }
int Wait(int timeout);
dword Get(int i) const;
dword operator[](int i) const { return Get(i); }
SocketWaitEvent();
};
struct HttpHeader {
String first_line;
VectorMap<String, String> fields;
String operator[](const char *id) { return fields.Get(id, Null); }
bool Response(String& protocol, int& code, String& reason);
bool Request(String& method, String& uri, String& version);
void Clear();
bool Parse(const String& hdrs);
};
class HttpRequest : public TcpSocket {
int phase;
String data;
int count;
HttpHeader header;
String error;
String body;
enum {
DEFAULT_HTTP_PORT = 80,
};
enum {
METHOD_GET,
METHOD_POST,
METHOD_HEAD,
METHOD_PUT,
};
int max_header_size;
int max_content_size;
int max_redirects;
int max_retries;
int timeout;
String host;
int port;
String proxy_host;
int proxy_port;
String proxy_username;
String proxy_password;
String path;
int method;
String accept;
String agent;
bool force_digest;
bool is_post;
bool std_headers;
bool hasurlvar;
String contenttype;
String username;
String password;
String digest;
String request_headers;
String postdata;
String protocol;
int status_code;
String reason_phrase;
int start_time;
int retry_count;
int redirect_count;
int chunk;
int bodylen;
bool gzip;
Zlib z;
void Init();
void StartPhase(int s);
void StartBody();
bool SendingData();
bool ReadingHeader();
bool ReadingBody();
void StartRequest();
void ReadingChunkHeader();
void Finish();
void HttpError(const char *s);
void ContentOut(const void *ptr, dword size);
void Out(const void *ptr, dword size);
String CalculateDigest(const String& authenticate) const;
public:
Callback2<const void *, dword> WhenContent;
HttpRequest& MaxHeaderSize(int m) { max_header_size = m; return *this; }
HttpRequest& MaxContentSize(int m) { max_content_size = m; return *this; }
HttpRequest& MaxRedirect(int n) { max_redirects = n; return *this; }
HttpRequest& MaxRetries(int n) { max_retries = n; return *this; }
HttpRequest& RequestTimeout(int ms) { timeout = ms; return *this; }
HttpRequest& ChunkSize(int n) { chunk = n; return *this; }
HttpRequest& Method(int m) { method = m; return *this; }
HttpRequest& GET() { return Method(METHOD_GET); }
HttpRequest& POST() { return Method(METHOD_POST); }
HttpRequest& HEAD() { return Method(METHOD_HEAD); }
HttpRequest& PUT() { return Method(METHOD_PUT); }
HttpRequest& Host(const String& h) { host = h; return *this; }
HttpRequest& Port(int p) { port = p; return *this; }
HttpRequest& Path(const String& p) { path = p; return *this; }
HttpRequest& User(const String& u, const String& p) { username = u; password = p; return *this; }
HttpRequest& Digest() { force_digest = true; return *this; }
HttpRequest& Digest(const String& d) { digest = d; return *this; }
HttpRequest& Url(const char *url);
HttpRequest& UrlVar(const char *id, const String& data);
HttpRequest& operator()(const char *id, const String& data) { return UrlVar(id, data); }
HttpRequest& PostData(const String& pd) { postdata = pd; return *this; }
HttpRequest& PostUData(const String& pd) { return PostData(UrlEncode(pd)); }
HttpRequest& Post(const String& data) { POST(); return PostData(data); }
HttpRequest& Post(const char *id, const String& data);
HttpRequest& Headers(const String& h) { request_headers = h; return *this; }
HttpRequest& ClearHeaders() { return Headers(Null); }
HttpRequest& AddHeaders(const String& h) { request_headers.Cat(h); return *this; }
HttpRequest& Header(const char *id, const String& data);
HttpRequest& StdHeaders(bool sh) { std_headers = sh; return *this; }
HttpRequest& NoStdHeaders() { return StdHeaders(false); }
HttpRequest& Accept(const String& a) { accept = a; return *this; }
HttpRequest& Agent(const String& a) { agent = a; return *this; }
HttpRequest& ContentType(const String& a) { contenttype = a; return *this; }
HttpRequest& Proxy(const String& host, int port) { proxy_host = host; proxy_port = port; return *this; }
HttpRequest& Proxy(const char *url);
HttpRequest& ProxyAuth(const String& u, const String& p) { proxy_username = u; proxy_password = p; return *this; }
bool IsSocketError() const { return TcpSocket::IsError(); }
bool IsHttpError() const { return !IsNull(error) ; }
bool IsError() const { return IsSocketError() || IsHttpError(); }
String GetErrorDesc() const { return IsSocketError() ? TcpSocket::GetErrorDesc() : error; }
void ClearError() { TcpSocket::ClearError(); error.Clear(); }
String GetHeader(const char *s) { return header[s]; }
String operator[](const char *s) { return GetHeader(s); }
String GetRedirectUrl();
int GetContentLength();
int GetStatusCode() const { return status_code; }
String GetReasonPhrase() const { return reason_phrase; }
String GetContent() const { return body; }
String operator~() const { return GetContent(); }
operator String() const { return GetContent(); }
void ClearContent() { body.Clear(); }
enum Phase {
START, REQUEST, HEADER, BODY, CHUNK_HEADER, CHUNK_BODY, TRAILER, FINISHED, FAILED
};
bool Do();
int GetPhase() const { return phase; }
bool InProgress() const { return phase != FAILED && phase != FINISHED; }
bool IsFailure() const { return phase == FAILED; }
bool IsSuccess() const { return phase == FINISHED && status_code >= 200 && status_code < 300; }
String Execute();
HttpRequest();
HttpRequest(const char *url);
static void Trace(bool b = true);
};