static void read_socket(int fd, void (*post_cb) (post_content_t*))
{
char buf[1024] = {};
http_parser_helper_t* helper = http_parser_helper_init();
while(true){
memset(&buf, 0, sizeof(char) * 1024);
ssize_t len = read(fd, &buf, sizeof(char) * 1024);
if(len < 0){
perror("read error");
exit(EXIT_FAILURE);
}
else{
http_parser_execute(&(helper->parser), &(helper->settings), buf, len);
if(helper->is_done){
break;
}
}
}
char* body = stringlist_concat(helper->body);
post_content_t* post_content = body_parser_parse(body);
post_cb(post_content);
post_content_free(post_content);
stringlist_concat_free(body);
http_parser_helper_free(helper);
}
/* Send an HTTP request. On success returns an estream object at
R_FP. HOSTPORTSTR is only used for diagnostics. If HTTPHOST is
not NULL it will be used as HTTP "Host" header. If POST_CB is not
NULL a post request is used and that callback is called to allow
writing the post data. */
static gpg_error_t
send_request (ctrl_t ctrl, const char *request, const char *hostportstr,
const char *httphost, unsigned int httpflags,
gpg_error_t (*post_cb)(void *, http_t), void *post_cb_value,
estream_t *r_fp)
{
gpg_error_t err;
http_session_t session = NULL;
http_t http = NULL;
int redirects_left = MAX_REDIRECTS;
estream_t fp = NULL;
char *request_buffer = NULL;
*r_fp = NULL;
err = http_session_new (&session, NULL);
if (err)
goto leave;
http_session_set_log_cb (session, cert_log_cb);
once_more:
err = http_open (&http,
post_cb? HTTP_REQ_POST : HTTP_REQ_GET,
request,
httphost,
/* fixme: AUTH */ NULL,
(httpflags | (opt.honor_http_proxy? HTTP_FLAG_TRY_PROXY:0)),
ctrl->http_proxy,
session,
NULL,
/*FIXME curl->srvtag*/NULL);
if (!err)
{
fp = http_get_write_ptr (http);
/* Avoid caches to get the most recent copy of the key. We set
both the Pragma and Cache-Control versions of the header, so
we're good with both HTTP 1.0 and 1.1. */
es_fputs ("Pragma: no-cache\r\n"
"Cache-Control: no-cache\r\n", fp);
if (post_cb)
err = post_cb (post_cb_value, http);
if (!err)
{
http_start_data (http);
if (es_ferror (fp))
err = gpg_error_from_syserror ();
}
}
if (err)
{
/* Fixme: After a redirection we show the old host name. */
log_error (_("error connecting to '%s': %s\n"),
hostportstr, gpg_strerror (err));
goto leave;
}
/* Wait for the response. */
dirmngr_tick (ctrl);
err = http_wait_response (http);
if (err)
{
log_error (_("error reading HTTP response for '%s': %s\n"),
hostportstr, gpg_strerror (err));
goto leave;
}
if (http_get_tls_info (http, NULL))
{
/* Update the httpflags so that a redirect won't fallback to an
unencrypted connection. */
httpflags |= HTTP_FLAG_FORCE_TLS;
}
switch (http_get_status_code (http))
{
case 200:
err = 0;
break; /* Success. */
case 301:
case 302:
case 307:
{
const char *s = http_get_header (http, "Location");
log_info (_("URL '%s' redirected to '%s' (%u)\n"),
request, s?s:"[none]", http_get_status_code (http));
if (s && *s && redirects_left-- )
{
xfree (request_buffer);
request_buffer = xtrystrdup (s);
if (request_buffer)
{
request = request_buffer;
http_close (http, 0);
http = NULL;
goto once_more;
}
err = gpg_error_from_syserror ();
}
else
err = gpg_error (GPG_ERR_NO_DATA);
log_error (_("too many redirections\n"));
}
goto leave;
default:
log_error (_("error accessing '%s': http status %u\n"),
request, http_get_status_code (http));
err = gpg_error (GPG_ERR_NO_DATA);
goto leave;
}
/* FIXME: We should register a permanent redirection and whether a
host has ever used TLS so that future calls will always use
TLS. */
fp = http_get_read_ptr (http);
if (!fp)
{
err = gpg_error (GPG_ERR_BUG);
goto leave;
}
/* Return the read stream and close the HTTP context. */
*r_fp = fp;
http_close (http, 1);
http = NULL;
leave:
http_close (http, 0);
http_session_release (session);
xfree (request_buffer);
return err;
}
bool iupPlot::Render(cdCanvas* canvas)
{
if (!mRedraw)
return true;
// Shift the drawing area to the plot viewport
cdCanvasOrigin(canvas, mViewport.mX, mViewport.mY);
// There are no additional transformations set in the CD canvas,
// all transformations are done here.
cdCanvasClip(canvas, CD_CLIPAREA);
// Draw the background, axis and grid restricted only by the viewport
cdCanvasClipArea(canvas, 0, mViewport.mWidth - 1, 0, mViewport.mHeight - 1);
// draw entire plot viewport
DrawBackground(canvas);
if (!mDataSetListCount)
return true;
cdCanvasNativeFont(canvas, IupGetAttribute(ih, "FONT"));
ConfigureAxis();
if (!CalculateAxisRange())
return false;
if (!CheckRange(mAxisX))
return false;
if (!CheckRange(mAxisY))
return false;
CalculateTitlePos();
// Must be before calculate margins
CalculateTickSize(canvas, mAxisX.mTick);
CalculateTickSize(canvas, mAxisY.mTick);
CalculateMargins(canvas);
iupPlotRect theDatasetArea;
theDatasetArea.mX = mBack.mMargin.mLeft;
theDatasetArea.mY = mBack.mMargin.mBottom;
theDatasetArea.mWidth = mViewport.mWidth - mBack.mMargin.mLeft - mBack.mMargin.mRight;
theDatasetArea.mHeight = mViewport.mHeight - mBack.mMargin.mTop - mBack.mMargin.mBottom;
if (!CalculateTickSpacing(theDatasetArea, canvas))
return false;
if (!CalculateXTransformation(theDatasetArea))
return false;
if (!CalculateYTransformation(theDatasetArea))
return false;
IFnC pre_cb = (IFnC)IupGetCallback(ih, "PREDRAW_CB");
if (pre_cb)
pre_cb(ih, canvas);
if (mBack.GetImage())
DrawBackgroundImage(canvas);
if (!mGrid.DrawX(mAxisX.mTickIter, mAxisX.mTrafo, theDatasetArea, canvas))
return false;
if (mGrid.mShowX)
mGridMinor.DrawX(mAxisX.mTickIter, mAxisX.mTrafo, theDatasetArea, canvas);
if (!mGrid.DrawY(mAxisY.mTickIter, mAxisY.mTrafo, theDatasetArea, canvas))
return false;
if (mGrid.mShowY)
mGridMinor.DrawY(mAxisY.mTickIter, mAxisY.mTrafo, theDatasetArea, canvas);
if (!mAxisX.DrawX(theDatasetArea, canvas, mAxisY))
return false;
if (!mAxisY.DrawY(theDatasetArea, canvas, mAxisX))
return false;
if (mBox.mShow)
mBox.Draw(theDatasetArea, canvas);
// draw the datasets, legend, crosshair and selection restricted to the dataset area
cdCanvasClipArea(canvas, theDatasetArea.mX, theDatasetArea.mX + theDatasetArea.mWidth - 1, theDatasetArea.mY, theDatasetArea.mY + theDatasetArea.mHeight - 1);
IFniiddi drawsample_cb = (IFniiddi)IupGetCallback(ih, "DRAWSAMPLE_CB");
for (int ds = 0; ds < mDataSetListCount; ds++)
{
iupPlotDataSet* dataset = mDataSetList[ds];
if (drawsample_cb)
{
iupPlotSampleNotify inNotify = { ih, ds, drawsample_cb };
dataset->DrawData(mAxisX.mTrafo, mAxisY.mTrafo, canvas, &inNotify);
}
else
dataset->DrawData(mAxisX.mTrafo, mAxisY.mTrafo, canvas, NULL);
}
if (mCrossHairH)
DrawCrossHairH(theDatasetArea, canvas);
else if (mCrossHairV)
DrawCrossHairV(theDatasetArea, canvas);
if (mShowSelectionBand)
{
if (mSelectionBand.mX < theDatasetArea.mX)
{
mSelectionBand.mWidth = mSelectionBand.mX + mSelectionBand.mWidth - theDatasetArea.mX;
mSelectionBand.mX = theDatasetArea.mX;
}
if (mSelectionBand.mY < theDatasetArea.mY)
{
mSelectionBand.mHeight = mSelectionBand.mY + mSelectionBand.mHeight - theDatasetArea.mY;
mSelectionBand.mY = theDatasetArea.mY;
}
if (mSelectionBand.mX + mSelectionBand.mWidth > theDatasetArea.mX + theDatasetArea.mWidth)
mSelectionBand.mWidth = theDatasetArea.mX + theDatasetArea.mWidth - mSelectionBand.mX;
if (mSelectionBand.mY + mSelectionBand.mHeight > theDatasetArea.mY + theDatasetArea.mHeight)
mSelectionBand.mHeight = theDatasetArea.mY + theDatasetArea.mHeight - mSelectionBand.mY;
mBox.Draw(mSelectionBand, canvas);
}
IFnC post_cb = (IFnC)IupGetCallback(ih, "POSTDRAW_CB");
if (post_cb)
post_cb(ih, canvas);
if (!DrawLegend(theDatasetArea, canvas, mLegend.mPos))
return false;
// Draw title restricted only by the viewport
cdCanvasClipArea(canvas, 0, mViewport.mWidth - 1, 0, mViewport.mHeight - 1);
DrawTitle(canvas);
if (!IupGetInt(ih, "ACTIVE"))
DrawInactive(canvas);
mRedraw = false;
return true;
}
/* Send an HTTP request. On success returns an estream object at
R_FP. HOSTPORTSTR is only used for diagnostics. If POST_CB is not
NULL a post request is used and that callback is called to allow
writing the post data. */
static gpg_error_t
send_request (ctrl_t ctrl, const char *request, const char *hostportstr,
gpg_error_t (*post_cb)(void *, http_t), void *post_cb_value,
estream_t *r_fp)
{
gpg_error_t err;
http_t http = NULL;
int redirects_left = MAX_REDIRECTS;
estream_t fp = NULL;
char *request_buffer = NULL;
*r_fp = NULL;
once_more:
err = http_open (&http,
post_cb? HTTP_REQ_POST : HTTP_REQ_GET,
request,
/* fixme: AUTH */ NULL,
0,
/* fixme: proxy*/ NULL,
NULL, NULL,
/*FIXME curl->srvtag*/NULL);
if (!err)
{
fp = http_get_write_ptr (http);
/* Avoid caches to get the most recent copy of the key. We set
both the Pragma and Cache-Control versions of the header, so
we're good with both HTTP 1.0 and 1.1. */
es_fputs ("Pragma: no-cache\r\n"
"Cache-Control: no-cache\r\n", fp);
if (post_cb)
err = post_cb (post_cb_value, http);
if (!err)
{
http_start_data (http);
if (es_ferror (fp))
err = gpg_error_from_syserror ();
}
}
if (err)
{
/* Fixme: After a redirection we show the old host name. */
log_error (_("error connecting to '%s': %s\n"),
hostportstr, gpg_strerror (err));
goto leave;
}
/* Wait for the response. */
dirmngr_tick (ctrl);
err = http_wait_response (http);
if (err)
{
log_error (_("error reading HTTP response for '%s': %s\n"),
hostportstr, gpg_strerror (err));
goto leave;
}
switch (http_get_status_code (http))
{
case 200:
err = 0;
break; /* Success. */
case 301:
case 302:
{
const char *s = http_get_header (http, "Location");
log_info (_("URL '%s' redirected to '%s' (%u)\n"),
request, s?s:"[none]", http_get_status_code (http));
if (s && *s && redirects_left-- )
{
xfree (request_buffer);
request_buffer = xtrystrdup (s);
if (request_buffer)
{
request = request_buffer;
http_close (http, 0);
http = NULL;
goto once_more;
}
err = gpg_error_from_syserror ();
}
else
err = gpg_error (GPG_ERR_NO_DATA);
log_error (_("too many redirections\n"));
}
goto leave;
default:
log_error (_("error accessing '%s': http status %u\n"),
request, http_get_status_code (http));
err = gpg_error (GPG_ERR_NO_DATA);
goto leave;
}
fp = http_get_read_ptr (http);
if (!fp)
{
err = gpg_error (GPG_ERR_BUG);
goto leave;
}
/* Return the read stream and close the HTTP context. */
*r_fp = fp;
http_close (http, 1);
http = NULL;
leave:
http_close (http, 0);
xfree (request_buffer);
return err;
}