bool Images::makeThumb ( ) {
// did it have an error?
if ( g_errno ) {
// just give up on all of them if one has an error
log ( "image: had error downloading image on page %s: %s. "
"Not downloading any more.",
m_pageUrl->getUrl(),mstrerror(g_errno));
// stop it
m_stopDownloading = true;
return true;
}
char *buf;
long bufLen, bufMaxLen;
HttpMime mime;
m_imgData = NULL;
m_imgDataSize = 0;
log( LOG_DEBUG, "image: gotImage() entered." );
// . if there was a problem, just ignore, don't let it stop getting
// the real page.
if ( g_errno ) {
log( "ERROR? g_errno puked: %s", mstrerror(g_errno) );
//g_errno = 0;
return true;
}
//if ( ! slot ) return true;
// extract image data from the socket
buf = m_msg13.m_replyBuf;
bufLen = m_msg13.m_replyBufSize;
bufMaxLen = m_msg13.m_replyBufAllocSize;
// no image?
if ( ! buf || bufLen <= 0 ) {
g_errno = EBADIMG;
return true;
}
// we are image candidate #i
//long i = m_j - 1;
// get img tag node
// get the url of the image
long srcLen;
char *src = NULL;
if ( m_xd->m_isDiffbotJSONObject ) {
src = *m_xd->getDiffbotPrimaryImageUrl();
srcLen = gbstrlen(src);
}
else {
long node = m_imageNodes[m_j];
src = m_xml->getString(node,"src",&srcLen);
}
// set it to the full url
Url iu;
// use "pageUrl" as the baseUrl
iu.set ( m_pageUrl , src , srcLen );
// get the mime
if ( ! mime.set ( buf, bufLen, &iu ) ) {
log ( "image: MIME.set() failed in gotImage()" );
// give up on the remaining images then
m_stopDownloading = true;
g_errno = EBADIMG;
return true;
}
// set the status so caller can see
long httpStatus = mime.getHttpStatus();
// check the status
if ( httpStatus != 200 ) {
log( LOG_DEBUG, "image: http status of img download is %li.",
m_httpStatus);
// give up on the remaining images then
m_stopDownloading = true;
g_errno = EBADIMG;
return true;
}
// make sure this is an image
m_imgType = mime.getContentType();
if ( m_imgType < CT_GIF || m_imgType > CT_TIFF ) {
log( LOG_DEBUG, "image: gotImage() states that this image is "
"not in a format we currently handle." );
// try the next image if any
g_errno = EBADIMG;
return true;
}
// get the content
m_imgData = buf + mime.getMimeLen();
m_imgDataSize = bufLen - mime.getMimeLen();
// Reset socket, so socket doesn't free the data, now we own
// We must free the buf after thumbnail is inserted in TitleRec
m_imgReply = buf;//slot->m_readBuf;
m_imgReplyLen = bufLen;//slot->m_readBufSize;
m_imgReplyMaxLen = bufMaxLen;//slot->m_readBufMaxSize;
// do not let UdpServer free the reply, we own it now
//slot->m_readBuf = NULL;
if ( ! m_imgReply || m_imgReplyLen == 0 ) {
log( LOG_DEBUG, "image: Returned empty image reply!" );
g_errno = EBADIMG;
return true;
}
// get next if too small
if ( m_imgDataSize < 20 ) { g_errno = EBADIMG; return true; }
long imageType;
getImageInfo ( m_imgData, m_imgDataSize, &m_dx, &m_dy, &imageType );
// log the image dimensions
log( LOG_DEBUG,"image: Image Link: %s", iu.getUrl() );
log( LOG_DEBUG,"image: Max Buffer Size: %lu bytes.",m_imgReplyMaxLen);
log( LOG_DEBUG,"image: Image Original Size: %lu bytes.",m_imgReplyLen);
log( LOG_DEBUG,"image: Image Buffer @ 0x%lx - 0x%lx",(long)m_imgReply,
(long)m_imgReply+m_imgReplyMaxLen );
log( LOG_DEBUG, "image: Size: %lupx x %lupx", m_dx, m_dy );
// what is this?
if ( m_dx <= 0 || m_dy <= 0 ) {
log(LOG_DEBUG, "image: Image has bad dimensions.");
g_errno = EBADIMG;
return true;
}
// skip if bad dimensions
if( ((m_dx < 50) || (m_dy < 50)) && ((m_dx > 0) && (m_dy > 0)) ) {
log(LOG_DEBUG,
"image: Image is too small to represent a news article." );
g_errno = EBADIMG;
return true;
}
// skip if bad aspect ratio. 5x1 or 1x5 is bad i guess
if ( m_dx > 0 && m_dy > 0 ) {
float aspect = (float)m_dx / (float)m_dy;
if ( aspect < .2 || aspect > 5.0 ) {
log(LOG_DEBUG,
"image: Image aspect ratio is worse that 5 to 1");
g_errno = EBADIMG;
return true;
}
}
// update status
if ( m_xd ) m_xd->setStatus ( "making thumbnail" );
// log it
log ( LOG_DEBUG, "image: gotImage() thumbnailing image." );
// create the thumbnail...
// reset this... why?
g_errno = 0;
// reset this since filterStart_r() will set it on error
m_errno = 0;
// callThread returns true on success, in which case we block
if ( g_threads.call ( FILTER_THREAD ,
MAX_NICENESS ,
this ,
makeThumbWrapper ,
thumbStartWrapper_r ) ) return false;
// threads might be off
logf ( LOG_DEBUG, "image: Calling thumbnail gen without thread.");
thumbStartWrapper_r ( this , NULL );
return true;
}
bool Images::makeThumb ( ) {
// did it have an error?
if ( g_errno ) {
// just give up on all of them if one has an error
log ( "image: had error downloading image on page %s: %s. "
"Not downloading any more.",
m_pageUrl->getUrl(),mstrerror(g_errno));
// stop it
m_stopDownloading = true;
return true;
}
char *buf;
int32_t bufLen, bufMaxLen;
HttpMime mime;
m_imgData = NULL;
m_imgDataSize = 0;
log( LOG_DEBUG, "image: gotImage() entered." );
// . if there was a problem, just ignore, don't let it stop getting
// the real page.
if ( g_errno ) {
log( "ERROR? g_errno puked: %s", mstrerror(g_errno) );
//g_errno = 0;
return true;
}
//if ( ! slot ) return true;
// extract image data from the socket
buf = m_msg13.m_replyBuf;
bufLen = m_msg13.m_replyBufSize;
bufMaxLen = m_msg13.m_replyBufAllocSize;
// no image?
if ( ! buf || bufLen <= 0 ) {
g_errno = EBADIMG;
return true;
}
// we are image candidate #i
//int32_t i = m_j - 1;
// get img tag node
// get the url of the image
int32_t srcLen;
char *src = getImageUrl ( m_j , &srcLen );
// set it to the full url
Url iu;
// use "pageUrl" as the baseUrl
iu.set( m_pageUrl, src, srcLen );
// get the mime
if ( ! mime.set ( buf, bufLen, &iu ) ) {
log ( "image: MIME.set() failed in gotImage()" );
// give up on the remaining images then
m_stopDownloading = true;
g_errno = EBADIMG;
return true;
}
// set the status so caller can see
int32_t httpStatus = mime.getHttpStatus();
// check the status
if ( httpStatus != 200 ) {
log( LOG_DEBUG, "image: http status of img download is %" PRId32".",
m_httpStatus);
// give up on the remaining images then
m_stopDownloading = true;
g_errno = EBADIMG;
return true;
}
// make sure this is an image
m_imgType = mime.getContentType();
if ( m_imgType < CT_GIF || m_imgType > CT_TIFF ) {
log( LOG_DEBUG, "image: gotImage() states that this image is "
"not in a format we currently handle." );
// try the next image if any
g_errno = EBADIMG;
return true;
}
// get the content
m_imgData = buf + mime.getMimeLen();
m_imgDataSize = bufLen - mime.getMimeLen();
// Reset socket, so socket doesn't free the data, now we own
// We must free the buf after thumbnail is inserted in TitleRec
m_imgReply = buf;//slot->m_readBuf;
m_imgReplyLen = bufLen;//slot->m_readBufSize;
m_imgReplyMaxLen = bufMaxLen;//slot->m_readBufMaxSize;
// do not let UdpServer free the reply, we own it now
//slot->m_readBuf = NULL;
if ( ! m_imgReply || m_imgReplyLen == 0 ) {
log( LOG_DEBUG, "image: Returned empty image reply!" );
g_errno = EBADIMG;
return true;
}
// get next if too small
if ( m_imgDataSize < 20 ) { g_errno = EBADIMG; return true; }
int32_t imageType;
getImageInfo ( m_imgData, m_imgDataSize, &m_dx, &m_dy, &imageType );
// log the image dimensions
log( LOG_DEBUG,"image: Image Link: %s", iu.getUrl() );
log( LOG_DEBUG,"image: Max Buffer Size: %" PRIu32" bytes.",m_imgReplyMaxLen);
log( LOG_DEBUG,"image: Image Original Size: %" PRIu32" bytes.",m_imgReplyLen);
log( LOG_DEBUG,"image: Image Buffer @ 0x%" PTRFMT" - 0x%" PTRFMT"",(PTRTYPE)m_imgReply,
(PTRTYPE)(m_imgReply+m_imgReplyMaxLen) );
log( LOG_DEBUG, "image: Size: %" PRIu32"px x %" PRIu32"px", m_dx, m_dy );
// what is this?
if ( m_dx <= 0 || m_dy <= 0 ) {
log(LOG_DEBUG, "image: Image has bad dimensions.");
g_errno = EBADIMG;
return true;
}
// skip if bad dimensions
if( ((m_dx < 50) || (m_dy < 50)) && ((m_dx > 0) && (m_dy > 0)) ) {
log(LOG_DEBUG,
"image: Image is too small to represent a news article." );
g_errno = EBADIMG;
return true;
}
// skip if bad aspect ratio. 5x1 or 1x5 is bad i guess
if ( m_dx > 0 && m_dy > 0 ) {
float aspect = (float)m_dx / (float)m_dy;
if ( aspect < .2 || aspect > 5.0 ) {
log(LOG_DEBUG,
"image: Image aspect ratio is worse that 5 to 1");
g_errno = EBADIMG;
return true;
}
}
CollectionRec *cr = g_collectiondb.getRec(m_collnum);
if ( ! cr ) { g_errno = ENOCOLLREC; return true; }
// save how big of thumbnails we should make. user can change
// this in the 'spider controls'
m_xysize = cr->m_thumbnailMaxWidthHeight ;
// make it 250 pixels if no decent value provided
if ( m_xysize <= 0 ) m_xysize = 250;
// and keep it sane
if ( m_xysize > 2048 ) m_xysize = 2048;
// update status
if ( m_xd ) m_xd->setStatus ( "making thumbnail" );
// log it
log ( LOG_DEBUG, "image: gotImage() thumbnailing image." );
// create the thumbnail...
// reset this... why?
g_errno = 0;
// reset this since filterStart_r() will set it on error
m_errno = 0;
// callThread returns true on success, in which case we block
if ( g_jobScheduler.submit(thumbStartWrapper_r,
makeThumbWrapper,
this,
thread_type_generate_thumbnail,
MAX_NICENESS) )
return false;
// threads might be off
logf ( LOG_DEBUG, "image: Calling thumbnail gen without thread.");
thumbStartWrapper_r ( this );
return true;
}
