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handylib.cpp
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#include "handylib.h"
#include <iomanip>
#include <sstream>
#include <strstream>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <sys/un.h>
#if HAVE_SSL
#include <openssl/bio.h>
#include <openssl/rsa.h>
#include <openssl/crypto.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
#include <openssl/ssl.h>
#include <openssl/err.h>
#endif
#ifndef __USE_MISC
#define __USE_MISC
#endif
#include <pthread.h>
#include <sys/time.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#include <time.h>
#include <sys/poll.h>
#include <errno.h>
#include <sstream>
#include <iomanip>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#include <time.h>
#include <stdio.h>
using namespace std;
namespace handylib {
bool HTTPHeaderStringCmp::operator()(const string& x, const string& y) const
{
return strcasecmp(x.c_str(),y.c_str()) < 0;
}
string HTTPCookies::getCookies() const
{
string s;
HTTPCookies::const_iterator i;
for (i = begin(); i != end(); i++) {
if (i != begin()) s += "; ";
s += i->first;
s += "=";
s += i->second.getValue();
}
return s;
}
string HTTPCookies::getCookie(HTTPCookies::const_iterator i, const string& dom) const
{
string s = i->first;
s += "="; s += i->second.getValue();
s += "; domain=";
if (i->second.getDomain().empty()) s += dom;
else s += i->second.getDomain();
s += "; path=";
if (i->second.getPath().empty()) s += "/";
else s += i->second.getPath();
if (i->second.getExpire().seconds()) {
s += "; expires=";
Time x(i->second.getExpire());
s += x.formatHTTP();
} else { s += "; expires=0"; }
return s;
}
void HTTPCookies::loadCookies(const char *s)
{
const char *ep, *np, *enp;
np = s;
while (*np) {
while ((*np == ';' || *np == ' ' || *np == '\t') && *np) np++;
if (!*np) break;
enp = np;
while (*enp && *enp != '=') enp++;
if (!*enp) break;
ep = enp;
while (*ep && *ep != ';') ep++;
string name(np, enp-np);
string value(enp+1, ep-enp-1);
(*this)[name] = HTTPCookie(value);
np = ep;
}
}
void HTTPCookies::loadCookie(const char *s)
{
const char *ep, *np, *enp;
HTTPCookies::iterator i;
string name;
bool hasn = false;
np = s;
while (*np) {
while ((*np == ';' || *np == ' ' || *np == '\t') && *np) np++;
if (!*np) break;
enp = np;
while (*enp && *enp != '=') enp++;
if (!*enp) break;
ep = enp;
while (*ep && *ep != ';') ep++;
if (!strncasecmp(np,"path",enp-np) && hasn) {
string value(enp+1, ep-enp-1);
i->second.setPath(value);
} else if (!strncasecmp(np,"domain",enp-np) && hasn) {
string value(enp+1, ep-enp-1);
i->second.setDomain(value);
} else if (!strncasecmp(np,"expires",enp-np) && hasn) {
Time t;
t.parseHTTP(enp+1);
i->second.setExpire(t);
} else {
hasn = true;
string name(np, enp-np);
string value(enp+1, ep-enp-1);
(*this)[name] = HTTPCookie(value);
i = find(name);
}
np = ep;
}
}
HTTPILimitBuf::HTTPILimitBuf(streambuf& ib, int limit) : i(ib), lim(limit)
{
cbuf = new char[1024];
if (!cbuf) return;
csize = 1024;
}
HTTPILimitBuf::~HTTPILimitBuf()
{
if (cbuf) delete [] cbuf;
}
int HTTPILimitBuf::sync(void) { return 0; }
int HTTPILimitBuf::underflow(void)
{
if (!cbuf) return EOF;
if (gptr() < egptr()) return (unsigned char)*gptr();
if (lim <= 0) return EOF;
int len = 0;
if (lim > csize) len = i.sgetn(cbuf,csize);
else len = i.sgetn(cbuf,lim);
lim -= len;
setg(cbuf,cbuf,cbuf+len);
if (len <= 0) return EOF; // premature end of data
return (unsigned char)*gptr();
}
HTTPIChunkedBuf::HTTPIChunkedBuf(streambuf& is) : i(is)
{
csize = 1024; cleft = 0; pos = 0;
cbuf = new char[csize];
if (!cbuf) return;
setg(cbuf,cbuf,cbuf);
}
HTTPIChunkedBuf::~HTTPIChunkedBuf()
{
if (cbuf) delete [] cbuf;
}
int HTTPIChunkedBuf::underflow(void)
{
if (!cbuf) return EOF;
if (gptr() < egptr())
return (unsigned char)*gptr();
pos += gptr() - eback();
setg(cbuf,cbuf,cbuf);
for (;;) {
if (cleft > 0) {
int p;
if (cleft >= csize) {
p = i.sgetn(cbuf,csize);
} else {
p = i.sgetn(cbuf,cleft+1);
if (p == cleft+1) p--;
}
if (p <= 0) return EOF;
cleft -= p;
pos += gptr() - eback();
setg(cbuf,cbuf,cbuf+p);
return (unsigned char)*gptr();
}
char s[8];
int ix = 0, c;
while ((c = i.sbumpc()) != EOF && ix < 7) {
if (c == '\n' && ix > 0) break;
if (c == '\n' || c == '\r' || c == ' ' || c == '\t') continue;
s[ix++] = c;
}
s[ix] = 0;
if (ix == 0) return EOF;
if (s[0] == '0' && !s[1]) return EOF;
sscanf(s,"%x",&ix);
if (ix < 0) ix = 0;
if (ix == 0) return EOF;
cleft = ix;
}
return EOF;
}
int HTTPIChunkedBuf::sync(void)
{
return 0;
}
HTTPOChunkedBuf::HTTPOChunkedBuf(streambuf& os) : o(os)
{
cbuf = new char[1027]; pos = 0;
if (!cbuf) return;
setp(cbuf,cbuf+1024);
}
HTTPOChunkedBuf::~HTTPOChunkedBuf()
{
overflow(EOF);
o.sputn("0\r\n",3);
if (cbuf) delete cbuf;
}
int HTTPOChunkedBuf::sync(void)
{
return overflow(EOF);
}
int HTTPOChunkedBuf::overflow(int ch)
{
if (!cbuf) return EOF;
streamsize len = pptr() - pbase();
if (ch != EOF) { *pptr() = ch; pptr()[1] = '\r'; len++; pptr()[2] = '\n'; len++; }
else { *pptr() = '\r'; len++; pptr()[1] = '\n'; }
char p[8];
snprintf(p,6,"%x\r\n",len-1);
o.sputn(p,strlen(p));
pos += len;
setp(cbuf,cbuf+1024);
if (o.sputn(cbuf,len+1) != len+1) return EOF;
return 0;
}
HTTPClient::~HTTPClient()
{
disconnect();
if (tcp) delete tcp;
tcp = (TCPStream*)0;
}
HTTPClient* HTTPClient::clone()
{
HTTPClient *x = new HTTPClient();
if (!x) return (HTTPClient*)0;
x->copy(*this);
return x;
}
void HTTPClient::copy(const HTTPClient& s)
{
proxy = s.proxy;
status = s.status;
is_11 = s.is_11;
url = s.url;
chunkbuf = (streambuf*)0;
tcp = (TCPStream*)0;
rh = s.rh;
th = s.th;
pr = s.pr;
ic = s.ic;
oc = s.oc;
}
void HTTPClient::request(const string& u, bool post, bool head)
{
string query;
string::const_iterator cu, cue;
map<string,string>::const_iterator cip;
map<string,string,HTTPHeaderStringCmp>::const_iterator hip;
disconnect();
url = u;
bool https = false;
if (post && pr.find("multipart/form-data") == pr.end())
rh["Content-Type"] = "application/x-www-form-urlencoded";
if (pr.find("_full_post") == pr.end()) {
for (cip = pr.begin(); cip != pr.end(); cip++) {
if (cip != pr.begin()) query += "&";
query += urlescape(cip->first);
query += "=";
query += urlescape(cip->second);
}
} else {
query = pr["_full_post"];
}
cu = url.begin();
if (cu == url.end() || (*cu != 'H' && *cu != 'h')) return;
cu++; if (cu == url.end() || (*cu != 'T' && *cu != 't')) return;
cu++; if (cu == url.end() || (*cu != 'T' && *cu != 't')) return;
cu++; if (cu == url.end() || (*cu != 'P' && *cu != 'p')) return;
cu++; if (cu == url.end()) return;
if (*cu == 'S' || *cu == 's') { cu++; https = true; }
if (cu == url.end() || *cu != ':') return;
cu++; if (cu == url.end() || *cu != '/') return;
cu++; if (cu == url.end() || *cu != '/') return;
for (cue = ++cu; cue != url.end() && *cue != ':' && *cue != '/'; cue++);
string host(cu,cue);
bool hsw = false;
if (rh.find("Host") == rh.end() && is_11) { rh["Host"] = host; hsw = true; }
string port(https?"443":"80");
if (cue != url.end() && *cue == ':') {
cu = cue;
for (cue = ++cu; cue != url.end() && *cue != ':' && *cue != '/'; cue++);
port = string(cu,cue);
if (hsw) rh["Host"] += string(cu-1,cue);
}
string path("/");
if (cue != url.end() && *cue == '/') path = string(cue,static_cast<string::const_iterator>(url.end()));
if (rh.find("Accept") == rh.end()) rh["Accept"] = "*/*";
if (post && pr.find("multipart/form-data") != pr.end()) {
char s[16];
snprintf(s,16,"%u",pr["multipart/form-data"].size());
rh["Content-Length"] = string(s);
} else if (post && query.size() > 0) {
char s[16];
snprintf(s,16,"%u",query.size());
rh["Content-Length"] = string(s);
} else { rh.erase("Content-Length"); }
if (oc.begin() != oc.end())
rh["Cookie"] = oc.getCookies();
else
rh.erase("Cookie");
string headers;
for (hip = rh.begin(); hip != rh.end(); hip++) {
if (hip->second.size() < 1) continue; // Do not emit empty header
headers += hip->first;
headers += ": ";
headers += hip->second;
headers += "\r\n";
}
string request;
IPAddress dst;
if (isProxy()) { // we have a proxy server
dst = proxy;
last_host.resize(0);
} else if (!dst.set(host,port)) { // need to resolve
if (host == "localhost") {
int p = dst.getPort();
dst = IPAddress("127.0.0.1");
dst.setPort(p);
last_host = host;
} else if (last_host == host) dst = last;
else return;
} else last_host.resize(0);
if (dst.getIP() == 0) return;
bool try_keep = false;
if (last == dst && last.getPort() == dst.getPort() && rh["Connection"] != "close") try_keep = true;
last = dst;
if (post) request = "POST "; else if (!head) request = "GET "; else request = "HEAD ";
if (isProxy()) {
request += "http://";
request += host;
request += ":";
request += port;
}
request += path;
if (!post && query.size() != 0) {
request += "?";
request += query;
}
if (is_11) request += " HTTP/1.1\r\n"; else request += "HTTP/1.0\r\n";
request += headers;
request += "\r\n";
if (post && pr.find("multipart/form-data") != pr.end())
request += pr["multipart/form-data"];
else if (post && query.size() > 0) request += query;
if (tcp && (!tcp->good() || !try_keep)) {
if (!isProxy() && !dst.set(host,port)) {
status = -1; disconnect(); return;
}
TCPStream *x = tcp;
tcp = (TCPStream*)0;
if (x) delete x;
}
if (!tcp) {
if (!https) tcp = connect(dst,to,2048);
else tcp = connect_ssl(dst,to,2048);
try_keep = false;
}
if (!tcp) { status = -1; disconnect(); return; }
if (tcp->err != Socket::OK) { status = -1; disconnect(); return; }
*tcp << request;
tcp->flush();
if (tcp->err != Socket::OK) { status = -1; disconnect(); return; }
do {
status = 0;
while (tcp->peek() == '\n' || tcp->peek() == '\r' || tcp->peek() == ' ' || tcp->peek() == '\t') tcp->get();
if (tcp->get() != 'H') {
if (try_keep) {
TCPStream *x = tcp;
tcp = (TCPStream*)0;
if (x) delete x;
if (!isProxy() && !dst.set(host,port)) {
status = -1; disconnect();
return;
}
if (!https) tcp = connect(dst,to,2048);
else tcp = connect_ssl(dst,to,2048);
if (!tcp) { status = -1; disconnect(); return; }
if (tcp->err != Socket::OK) { status = -1; disconnect(); return; }
*tcp << request;
tcp->flush();
if (tcp->err != Socket::OK) { status = -1; disconnect(); return; }
try_keep = false;
while (tcp->peek() == '\n' || tcp->peek() == '\r' || tcp->peek() == ' ' || tcp->peek() == '\t') tcp->get();
if (tcp->get() != 'H') { status = -1; disconnect(); return; }
} else { status = -1; disconnect(); return; }
}
if (tcp->get() != 'T') { status = -1; disconnect(); return; }
if (tcp->get() != 'T') { status = -1; disconnect(); return; }
if (tcp->get() != 'P') { status = -1; disconnect(); return; }
while (tcp->peek() == '\n' || tcp->peek() == '\r' || tcp->peek() == ' ' || tcp->peek() == '\t') tcp->get();
if (tcp->get() != '/') { status = -1; disconnect(); return; }
if (tcp->get() != '1') { status = -1; disconnect(); return; }
if (tcp->get() != '.') { status = -1; disconnect(); return; }
tcp->get();
while (tcp->peek() == '\n' || tcp->peek() == '\r' || tcp->peek() == ' ' || tcp->peek() == '\t') tcp->get();
status = (tcp->get() - '0')*100;
status += (tcp->get() - '0')*10;
status += tcp->get() - '0';
if (status < 100 || status > 600) { status = 0; { status = -1; disconnect(); return; } }
while (tcp->peek() == '\n' || tcp->peek() == '\r' || tcp->peek() == ' ' || tcp->peek() == '\t') tcp->get();
while (!tcp->eof() && tcp->get() != '\n');
th.clear();
while (!tcp->eof() && tcp->peek() != '\n' && tcp->peek() != '\r') {
string n, v;
while (!tcp->eof() && tcp->peek() != ':' && tcp->peek() != '\n' && tcp->peek() != '\r') n += (char)tcp->get();
if (tcp->peek() == ':') {
while (tcp->peek() == ':' || tcp->peek() == ' ' || tcp->peek() == '\t') tcp->get();
while (!tcp->eof() && tcp->peek() != '\n' && tcp->peek() != '\r') v += (char)tcp->get();
if (!strcasecmp(n.c_str(),"Set-Cookie")) ic.loadCookie(v.c_str());
th[n] = v;
} else break;
if (tcp->peek() == '\r') tcp->get();
if (tcp->peek() == '\n') tcp->get();
if (tcp->peek() == '\r' || tcp->peek() == '\n') break;
}
while (tcp->peek() == '\n' || tcp->peek() == '\r') tcp->get();
} while (status == 100);
if (th.find("Transfer-Encoding") != th.end()) {
chunkbuf = new HTTPIChunkedBuf(*tcp);
if (!chunkbuf) { status = -1; disconnect(); return; }
rdbuf(chunkbuf);
} else if (th.find("Content-Length") != th.end()) {
int len = atoi(th["Content-Length"].c_str());
if (len > 0) {
chunkbuf = new HTTPILimitBuf(*tcp, len);
if (!chunkbuf) { status = -1; disconnect(); return; }
rdbuf(chunkbuf);
} else {
th["Connection"] = "close";
rdbuf(tcp->rdbuf());
}
} else {
th["Connection"] = "close";
rdbuf(tcp->rdbuf());
}
}
void HTTPClient::link(const string& u, bool post, bool head)
{
rh["Referer"] = url;
ic = oc;
request(u,post,head);
while (status % 100 == 3 && th.find("Location") != th.end()) {
pr.clear();
rh["Referer"] = url;
ic = oc;
request(th["Location"],false,head);
}
}
void HTTPClient::disconnect()
{
rdbuf((streambuf*)0);
if (chunkbuf) delete chunkbuf;
chunkbuf = (streambuf*)0;
if ((th.find("Connection") != th.end() && th["Connection"] == "close") || status < 0) {
TCPStream *x = tcp;
tcp = (TCPStream*)0;
if (x) delete x;
}
status = 0;
}
string HTTPClient::makeTimestamp(const Time& t)
{
Time tm(t); return tm.formatHTTP();
}
Time HTTPClient::getTimestamp(const string& s)
{
string tp = rh[s];
Time t; t.parseHTTP(tp.c_str());
return t;
// if (tp.empty()) return Time();
// if (tp[3] == ',') return Time("%a, %d %b %Y %H:%M:%S",tp.c_str(),true);
// if (tp[3] == ' ') return Time("%a %b %d %H:%M:%S %Y",tp.c_str(),true);
// return Time("%A, %d-%b-%y %H:%M:%S",tp.c_str(),true);
}
TCPStream *HTTPClient::connect(const IPAddress& host, unsigned to, int size)
{
return new TCPStream(host,to,size);
}
TCPStream *HTTPClient::connect_ssl(const IPAddress& host, unsigned to, int size)
{
return new TCPSSLStream(host,to,size);
}
void HTTPServer::requestBasicAuth(const string& realm)
{
setStatus(401);
th["WWW-Authenticate"] = "Basic realm=\""+realm+"\"";
}
char *HTTPServer::parseBoundary(char *bboundary, int maxs)
{
char *boundary,*p;
if (rh["Content-Type"].size() >= (unsigned)maxs) return 0;
strcpy(bboundary, rh["Content-Type"].c_str());
boundary = strstr(bboundary, "boundary=");
if (!boundary) return 0;
boundary += 9;
if (*boundary == '\"') {
++boundary;
p = strchr(boundary, '\"');
if (p) *p = 0;
if (boundary[0] == 0) return 0;
return boundary;
}
if ((p = strchr(boundary, ';')) != 0) *p = 0;
if ((p = strchr(boundary, ' ')) != 0) *p = 0;
if ((p = strchr(boundary, '\r')) != 0) *p = 0;
if ((p = strchr(boundary, '\n')) != 0) *p = 0;
if (boundary[0] == 0) return 0;
return boundary;
}
unsigned HTTPServer::loadMultipartBuf(istream& i, char *buf, int maxl)
{
if (i.rdbuf()->in_avail() == 0 && i.peek() == EOF) return 0;
if (maxl > i.rdbuf()->in_avail()) maxl = i.rdbuf()->in_avail();
i.read(buf,maxl);
return (unsigned)maxl;
}
void HTTPServer::loadMultipart(istream& i)
{
char bboundary[256], buf[2048], *boundary, *p, *ep, *rep, *sp;
string name;
boundary = parseBoundary(bboundary, 256);
// following states are possible:
// 0 - outside of any boundaries
// 1 - inside - parsing headers
// 2 - inside of content-disposition header - namea
// 3 - inside of name
// 4 - inside of content-disposition header - filename
// 5 - inside of filename
// 6 - inside - skipping headers
// 7 - inside - parsing body
unsigned state = 0, blen = strlen(boundary);
bool need_data = false;
sp = &buf[0]; rep = p = ep = &buf[2048];
for (;;) {
if (p == ep || need_data) {
if (p != ep) memmove(sp,p,ep-p);
unsigned ldl = loadMultipartBuf(i,sp+(ep-p), rep - sp - (ep-p));
if (p == ep && ldl == 0) break; // EOF
if (ldl == 0 && need_data) break; // EOF
ep = sp + (ep - p) + ldl;
p = sp;
need_data = false;
}
if (state == 7) { // copy to h[name] everything before boundary
char *p1 = (char*)memchr(p,boundary[0],ep-p);
if (!p1) {
h[name] += string(p,ep-p);
p = ep;
continue;
}
if (ep - p1 < blen) { need_data = true; continue; }
if (!memcmp(p1,boundary,blen)) {
string& str = h[name];
str += string(p,p1-p);
p = p1;
if (str.size() > 1 && str[str.size()-1] == '-') str.resize(str.size()-1);
if (str.size() > 1 && str[str.size()-1] == '-') str.resize(str.size()-1);
if (str.size() > 1 && str[str.size()-1] == '\n') str.resize(str.size()-1);
if (str.size() > 1 && str[str.size()-1] == '\r') str.resize(str.size()-1);
state = 1;
p += blen;
} else {
h[name] += string(p,p1-p+1);
p = p1 + 1;
}
} else if (state == 0) {
p = (char*)memchr(p,boundary[0],ep-p);
if (!p) { p = ep; continue; }
if ((unsigned)(ep-p) < blen) { need_data = true; continue; }
if (!memcmp(p,boundary,blen)) {
state = 1;
p += blen;
continue;
}
++p;
} else if (state == 1) { // state == 1 - inside of headers
while (p != ep && (*p == '\n' || *p == '\r')) ++p;
if (ep - p < 27) { need_data = true; continue; }
// locate Content-Disposition header
if (!memcmp(p,"Content-Disposition:", 20)) {
state = 2;
p += 20;
} else {
p = (char*)memchr(p,'\n',ep-p);
if (!p) p = ep;
else ++p;
}
} else if (state == 2) { // inside of content-dispos header
while (p != ep && (*p == ' ' || *p == '\t')) ++p;
if (ep - p < 6) { need_data = true; continue; }
if (!memcmp(p,"name=",5)) {
state = 3;
p += 5;
} else ++p;
} else if (state == 3) { // parsing name header
while (p != ep && *p == ' ') ++p;
if (p == ep) continue;
if (*p == '\"') {
char *p1 = (char*)memchr(p+1,'\"',ep-p-1);
if (!p1) { need_data = true; continue; }
name = string(p+1, p1 - p - 1);
fn[name] = "";
h[name] = "";
p = p1+1;
state = 4;
} else {
char *p1 = (char*)memchr(p,' ',ep-p);
if (!p1) p1 = (char*)memchr(p,';',ep-p);
if (!p1) p1 = (char*)memchr(p,'\r',ep-p);
if (!p1) p1 = (char*)memchr(p,'\n',ep-p);
if (!p1) { need_data = true; continue; }
name = string(p, p1 - p);
fn[name] = "";
h[name] = "";
p = p1;
state = 4;
}
} else if (state == 4) {
while (p != ep && *p == ' ') ++p;
if (p == ep) continue;
if (*p == '\r' || *p == '\n') { state = 6; continue; }
if (ep - p < 9) { need_data = true; continue; }
if (!memcmp(p,"filename=",9)) {
state = 5;
p += 9;
} else ++p;
} else if (state == 5) {
while (p != ep && *p == ' ') ++p;
if (p == ep) continue;
if (*p == '\"') {
char *p1 = (char*)memchr(p+1,'\"',ep-p-1);
if (!p1) { need_data = true; continue; }
fn[name] = string(p+1, p1 - p - 1);
p = p1+1;
state = 6;
} else {
char *p1 = (char*)memchr(p,' ',ep-p);
if (!p1) p1 = (char*)memchr(p,';',ep-p);
if (!p1) p1 = (char*)memchr(p,'\r',ep-p);
if (!p1) p1 = (char*)memchr(p,'\n',ep-p);
if (!p1) { need_data = true; continue; }
fn[name] = string(p, p1 - p);
p = p1;
state = 6;
}
} else if (state == 6) {
char *p1 = (char*)memchr(p,'\n',ep-p);
if (!p1) { p = ep; continue; }
if (ep - p1 < 3) { need_data = true; continue; }
if (p1[1] == '\n') {
state = 7;
p = p1+2;
} else if (p1[1] == '\r' && p1[2] == '\n') {
state = 7;
p = p1+3;
} else p = p1+1;
}
}
}
void HTTPServer::loadParams()
{
int sz;
bool delete_i = false;
istream *i = (istream*)0;
if (!get_request_method && rh.find("Content-Length") != rh.end()) {
if (rh["Content-Length"].size() <= 0) return;
sz = atoi(rh["Content-Length"].c_str());
if (sz <= 0 || (sz > max_request_size && max_request_size != 0))
return;
i = &input;
} else {
i = new istringstream(query_string);
delete_i = true;
sz = -1;
}
if (rh["Content-Type"].size() >= 19 && rh["Content-Type"].substr(0,19) == "multipart/form-data") {
HTTPILimitBuf il(*i->rdbuf(), sz);
istream ils(&il);
loadMultipart(ils);
} else {
while (sz != 0 && i->peek() != EOF) {
string n,v;
while (sz != 0 && i->peek() != EOF && i->peek() != '=' && i->peek() != '&' && i->peek() != ';') { n += (char)i->get(); sz--; }
if (sz ==0) break;
if (i->peek() == '=') {
i->get(); sz --;
while (sz != 0 && i->peek() != EOF && i->peek() != '&' && i->peek() != ';') { v += (char)i->get(); sz--; }
}
if (n.size() > 0) h[urlunescape(n)] = urlunescape(v);
if (sz == 0) break;
if (i->peek() == '&' || i->peek() == ';') { i->get(); sz--; }
}
}
if (delete_i) delete i;
}
void HTTPServer::checkLastModified()
{
char st[64];
th["Last-Modified"] = last_modified.formatHTTP();
snprintf(st,63,"\"%06x-%04x-%08x\"",(last_modified.seconds() ^ 0x89c3f76e)&0xffffff,(last_modified.seconds() ^ 0x5ef1c36e)&0xffff,(last_modified.seconds() ^ 0x87d35e6c));
th["Etag"] = st;
if (rh.find("If-Modified-Since") != rh.end()) {
Time t; t.parseHTTP(rh["If-Modified-Since"].c_str());
if (last_modified < t && t.seconds() != 0) {
block_content = true;
head_only = true;
status = 304;
}
} else if (rh.find("If-Unmodified-Since") != rh.end()) {
Time t; t.parseHTTP(rh["If-Unmodified-Since"].c_str());
if (last_modified > t && t.seconds() != 0) {
block_content = true;
head_only = true;
status = 412;
}
} else if (rh.find("If-Match") != rh.end()) {
const string& s(rh["If-Match"]);
if (s.find(th["Etag"]) >= s.size() && s.find('*') >= s.size()) {
block_content = true;
head_only = true;
status = 412;
}
} else if (rh.find("If-None-Match") != rh.end()) {
const string& s(rh["If-None-Match"]);
if (s.find(th["Etag"]) < s.size()) {
block_content = true;
head_only = true;
status = 304;
}
}
}
void HTTPServer::beginData()
{
th["Server"] = "Apache";
block_content = false;
if (!status) status = 200;
if (status == 200 && last_modified.seconds() != 0) {
checkLastModified();
}
Time t; t.now();
th["Date"] = t.formatHTTP();
if (rh["Connection"] == "close" && !is_10) th["Connection"] = "close";
if (th.find("Content-Type") == th.end()) th["Content-Type"]="text/html";
if (tcp) {
if (is_10) real_output << "HTTP/1.0 " << status;
else real_output << "HTTP/1.1 " << status;
switch (status) {
case 100: real_output << " Continue\r\n"; break;
case 101: real_output << " Switching protocols\r\n"; break;
case 200: real_output << " OK\r\n"; break;
case 201: real_output << " Created\r\n"; break;
case 202: real_output << " Accepted\r\n"; break;
case 203: real_output << " Non-Authorative Information\r\n"; break;
case 204: real_output << " No Content\r\n"; break;
case 205: real_output << " Reset Content\r\n"; break;
case 206: real_output << " Partial Content\r\n"; break;
case 300: real_output << " Multiple Choices\r\n"; break;
case 301: real_output << " Moved Permanently\r\n"; break;
case 302: real_output << " Found\r\n"; break;
case 303: real_output << " See Other\r\n"; break;
case 304: real_output << " Not Modified\r\n"; break;
case 305: real_output << " Use Proxy\r\n"; break;
case 307: real_output << " Temporary Redirect\r\n"; break;
case 400: real_output << " Bad Request\r\n"; break;
case 401: real_output << " Unauthorized\r\n"; break;
case 402: real_output << " Payment Required\r\n"; break;
case 403: real_output << " Forbidden\r\n"; break;
case 404: real_output << " Not Found\r\n"; break;
case 405: real_output << " Method Not Allowed\r\n"; break;
case 406: real_output << " Not Acceptable\r\n"; break;
case 407: real_output << " Proxy Authentication Required\r\n"; break;
case 408: real_output << " Request Timeout\r\n"; break;
case 409: real_output << " Conflict\r\n"; break;
case 410: real_output << " Gone\r\n"; break;
case 411: real_output << " Length Required\r\n"; break;
case 412: real_output << " Precondition Failed\r\n"; break;
case 413: real_output << " Request Entity Too Large\r\n"; break;
case 414: real_output << " Request-URI Too Long\r\n"; break;
case 415: real_output << " Unsupported Media Type\r\n"; break;
case 416: real_output << " Requested Range Not Satisfiable\r\n"; break;
case 417: real_output << " Expectation Failed\r\n"; break;
case 500: real_output << " Internal Server Error\r\n"; break;
case 501: real_output << " Not Implemented\r\n"; break;
case 502: real_output << " Bad Gateway\r\n"; break;
case 503: real_output << " Service Unavailable\r\n"; break;
case 504: real_output << " Gateway Timeout\r\n"; break;
case 505: real_output << " HTTP Version Not Supported\r\n"; break;
default: real_output << "\r\n"; break;
}
} else if (status && status != 200) {
real_output << "Status: " << status << "\r\n";
}
bool nochunk = false;
if (block_content) nochunk = true;
if (th.find("Content-Length") != th.end()) nochunk = true;
if (rh.find("no-chunked-encoding") != rh.end()) nochunk = true;
if (th["Content-Type"].size() >= 4 && th["Content-Type"].substr(0,4) != "text") nochunk = true;
if (rh["Connection"] != "close") nochunk = true;
if (!is_10 && tcp && !nochunk) th["Transfer-Encoding"] = "chunked";
if (!block_content) {
for (HTTPCookies::const_iterator ci = c.begin(); ci != c.end(); ci++)
if (ci->second.getDomain().size() > 0)
real_output << "Set-Cookie: " << c.getCookie(ci,server_name) << "\r\n";
}
if (block_content) { // eliminate all Content-related headers
map<string,string,HTTPHeaderStringCmp>::iterator ti;
ti = th.find("Content-Type");
if (ti != th.end()) th.erase(ti);
ti = th.find("Content-Length");
if (ti != th.end()) th.erase(ti);
ti = th.find("Content-Encoding");
if (ti != th.end()) th.erase(ti);
ti = th.find("Last-Modified");
if (ti != th.end()) th.erase(ti);
ti = th.find("Pragma");
if (ti != th.end()) th.erase(ti);
ti = th.find("Cache-Control");
if (ti != th.end()) th.erase(ti);
ti = th.find("Expires");
if (ti != th.end()) th.erase(ti);
ti = th.find("Etag");
if (ti != th.end()) th.erase(ti);
}
for (map<string,string,HTTPHeaderStringCmp>::iterator ti = th.begin(); ti != th.end(); ti++)
if (ti->second.size() > 0) real_output << ti->first << ": " << ti->second << "\r\n";
if (!head_only) {
if (!is_10 && tcp && !nochunk) {
real_output << "\r\n";
chunkbuf = new HTTPOChunkedBuf(*real_output.rdbuf());
if (!chunkbuf) { status = -1; return; }
rdbuf(chunkbuf);
} else if (!tcp && !nochunk) {
real_output << "\r\n";
rdbuf(real_output.rdbuf());
} else if (th.find("Content-Length") == th.end()) {
strbuf = new strstreambuf();
if (!strbuf) { status = -1; return; }
rdbuf(strbuf);
} else { real_output << "\r\n"; rdbuf(real_output.rdbuf()); }
} else {
strbuf = new strstreambuf();
if (!strbuf) { status = -1; return; }
rdbuf(strbuf);
}
}
HTTPServer::HTTPServer(int maxr) : ostream(0), input(cin), real_output(cout)
{
max_request_size = maxr;
rdbuf(real_output.rdbuf());
tcp = (TCPStream*)0;
chunkbuf = (HTTPOChunkedBuf*)0;
strbuf = 0;
is_10 = head_only = false; get_request_method = true;
status = 0;
char *s = getenv("REMOTE_USER");
if (s) remote_user = s;
s = getenv("HTTP_USER_AGENT");
if (s) rh["User-Agent"] = s;
s = getenv("REQUEST_METHOD");
if (s && (s[0] == 'P' || s[0] == 'p')) get_request_method = false;
s = getenv("SERVER_NAME");
if (s) server_name = s;
s = getenv("SERVER_PORT");
if (s) server_port = atoi(s); else server_port = 80;
s = getenv("SCRIPT_NAME");
if (s) path = s;
s = getenv("PATH_INFO");
if (s) path += s;
s = getenv("HTTP_REFERER");
if (s) rh["Referer"] = s;
s = getenv("REMOTE_ADDR");
if (s) peer_address.set(s);