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// file : web/apache/request.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2015 Code Synthesis Tools CC
// license : MIT; see accompanying LICENSE file
#include <web/apache/request>
#include <stdexcept>
#include <ios>
#include <streambuf>
#include <sstream>
#include <ostream>
#include <memory> // unique_ptr
#include <algorithm> // move()
#include <chrono>
#include <ctime>
#include <strings.h> // strcasecmp()
#include <apr_tables.h>
using namespace std;
namespace web
{
namespace apache
{
const name_values& request::
cookies ()
{
if (!cookies_)
{
cookies_.reset (new name_values ());
const apr_array_header_t* ha = apr_table_elts (rec_->headers_in);
size_t n = ha->nelts;
for (auto h (reinterpret_cast<const apr_table_entry_t *> (ha->elts));
n--; ++h)
{
if (!::strcasecmp (h->key, "Cookie"))
{
for (const char* n (h->val); n != 0; )
{
const char* v = strchr (n, '=');
const char* e = strchr (n, ';');
if (e && e < v)
v = 0;
string name (
v ? mime_url_decode (n, v, true) :
(e ? mime_url_decode (n, e, true) :
mime_url_decode (n, n + strlen (n), true)));
string value;
if (v++)
{
value = e ? mime_url_decode (v, e, true) :
mime_url_decode (v, v + strlen (v), true);
}
if (!name.empty () || !value.empty ())
cookies_->emplace_back (move (name), move (value));
n = e ? e + 1 : 0;
}
}
}
}
return *cookies_;
}
ostream& request::
content (status_code status, const std::string& type, bool buffer)
{
if (type.empty ())
{
// Getting content stream for writing assumes type to be provided.
//
throw std::invalid_argument (
"::web::apache::request::content invalid type");
}
// Due to apache implementation of error custom response there is no
// way to make it unbuffered.
//
buffer = buffer || status != HTTP_OK;
if ((status != status_ || type != type_ || buffer != buffer_) &
write_flag ())
{
throw sequence_error ("::web::apache::request::content");
}
if (status == status_ && type == type_ && buffer == buffer_)
{
assert (out_);
return *out_;
}
if (!buffer)
// Request body will be discarded prior first byte of content is
// written. Save form data now to make it available for furture
// parameters () call.
//
form_data ();
std::unique_ptr<std::streambuf> out_buf(
buffer ? static_cast<std::streambuf*> (new std::stringbuf ()) :
static_cast<std::streambuf*> (new ostreambuf (rec_)));
out_.reset (new std::ostream (out_buf.get ()));
out_buf_ = std::move (out_buf);
out_->exceptions (
std::ios::eofbit | std::ios::failbit | std::ios::badbit);
status_ = status;
type_ = type;
buffer_ = buffer;
if (!buffer_)
set_content_type ();
return *out_;
}
void request::
cookie (const char* name,
const char* value,
const std::chrono::seconds* max_age,
const char* path,
const char* domain,
bool secure)
{
if (write_flag ())
{
throw sequence_error ("::web::apache::request::cookie");
}
std::ostringstream s;
mime_url_encode (name, s);
s << "=";
mime_url_encode (value, s);
if (max_age)
{
std::chrono::system_clock::time_point tp =
std::chrono::system_clock::now () + *max_age;
std::time_t t = std::chrono::system_clock::to_time_t (tp);
// Assume global "C" locale is not changed.
//
char b[100];
std::strftime (b,
sizeof (b),
"%a, %d-%b-%Y %H:%M:%S GMT",
std::gmtime (&t));
s << "; Expires=" << b;
}
if (path)
{
s << ";Path=" << path;
}
if (domain)
{
s << ";Domain=" << domain;
}
if (secure)
{
s << ";Secure";
}
apr_table_add (rec_->err_headers_out, "Set-Cookie", s.str ().c_str ());
}
}
}
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