Am Tue, 8 Jun 2010 04:25:49 -0700 schrieb Leonard Rosenthol <lrose...@adobe.com>:
hi leonard, thanks for your reply :) since you've got adobe.com in your mail adress i think the final conclusion in this case is best sent to you. since i switched to apache instead of lighttpd sending pdfforms was more successful, but still bigger forms are a problem while very small forms are sent ok 100% of the time. even worse i experienced what we call a "blinker-problem" (works, works not, works not, works.... in random order) on pdfforms on given example with lets say 120+ textfields and comboboxes. on those "big" pdfforms rarely a submit is answered with a immediate success, way more often pressing the "push me" button results in a timeout which leads ~50:50 to an empty or complete /tmp/vars.txt . while i tried to strace the reader to find out where the timeout is coming from (which immediately freaked me because of the ~400 poll/gettimeofday/read's per second flushing my shells history :/) i had the idea to try the windows version of the reader and started my vm, changed the post-url in the java code and gave it a try. to make a long story short: the windows reader had no problems even with ridiculously big (for (int i = 0; i < 12000; i++)) pdfforms - sending is done in 2-3 seconds. linux reader: 9.3.2 04/01/2010... if you like i can add additional info about the system i ran the tests on. case closed, thanks to all for the help :) > I can tell you that people have been sending >1024 bytes of form data > from Acrobat/Reader for over a decade - so whatever is going on, is > on your server... > > Leonard > > -----Original Message----- > From: camikusch [mailto:camiku...@web.de] > Sent: Tuesday, June 08, 2010 4:22 AM > To: itext-questions@lists.sourceforge.net > Subject: Re: [iText-questions] max number of comboboxes in a pdfform > is 85? > > Am Wed, 2 Jun 2010 06:32:30 -0700 > schrieb Leonard Rosenthol <lrose...@adobe.com>: > > i discovered the error has nothing to do with the number or kind of > pdfform elements but the amount of data transmitted. > the example i posted happen to send less then 1024bytes of data to the > webserver which is fine, but when the amount of data exceeds 1023 byte > (pdfformfield names and the associated data) adobe reader sends a > "expect 100-continue" header which isnt correctly handled by > lighttpd... > > 2010-06-08 08:19:57: (request.c.304) fd: 8 request-len: 207 > POST /get_post_vars.php HTTP/1.1 > User-Agent: AcroForms > Host: localhost > Accept: */* > Content-Type: application/x-www-form-urlencoded > Acrobat-Version: 9.3.2 > Content-Length: 1130 > Expect: 100-continue > > 2010-06-08 08:19:57: (response.c.128) Response-Header: > HTTP/1.1 417 Expectation Failed > Content-Type: text/html > Content-Length: 363 > Connection: close > Date: Tue, 08 Jun 2010 06:19:57 GMT > Server: lighttpd/1.4.26 > > lighttps homepage has a workaround for 1.4.21+ > server.reject-expect-100-with-417 = "disable" > which also does'nt fix the problem because the "expect" request from > acroforms still is'nt correctly answered - its only not responded with > 417. > > > so i switched to apache 2.2.15 and tried the php-script for receiving > acroforms post-data... with the same errorous results. > post-data with size<1024 bytes is processed ok, 1024+ bytes will > trigger "expect-100" > i've added a screenshot which shows the behaviour: > http://www.zimagez.com/zimage/bildschirmfoto-08062010-095118.php > adobe reader sends expect-100, 300seconds after that the php script > continues *without having received the post-data* to send the answer > pdf which is received normally by the reader. > > > since it seems the communication between adobe reader and the > receiving webserver is the issue here i'm not quite sure this belongs > to this mailing-list. but... maybe someone can help anyhow. > > > > > Where is the error taking place? In Acrobat/Reader during > > submission? On the server? Other? > > > > -----Original Message----- > > From: camiku...@web.de [mailto:camiku...@web.de] > > Sent: Wednesday, June 02, 2010 9:19 AM > > To: itext-questions@lists.sourceforge.net > > Subject: [iText-questions] max number of comboboxes in a pdfform is > > 85? > > > > hi all, > > > > i ran into a problem regarding the max number of comboboxes a > > pdfform permits for an error-free submit via SUBMIT_HTML_FORMAT. > > > > following code consists of tree files: > > PdfForms.java - the test application i build after i ran into > > problems with the real application FieldCell.java - some of you know > > this code, insert a formfield in a table cell :) > > > > for a complete test scenario: > > get_post_vars.php - see the transmitted variables. will spool > > readable output to /tmp/vars.txt and a success .pdf to the sending > > acroreader. you'll need an additional "erfolg.pdf" in the same > > directory on your testing webserver. > > > > > > in PdfForms.java method addContent adds 85 textfields and > > comboboxes, if you increase this to 86 the .pdf will still be > > generated well but pressing the "push me" button on the end will > > give a "text/html" error and the php-script on the webserver will > > not catch any submitted variables whereas with 85 text/combo fields > > everything works fine. iv'e added two single method calls of > > addTextField and addComboBox after the 85 loop to see which field > > might cause the error.. combobox > > > > is it a "natural" restriction of adobe's pdf, a bug in itext or am i > > doing something really stupid? if nothing helps i've got to try the > > same amount+ checkbox-goups :/ > > > > > > PdfForms.java ################################################## > > package pdfforms_test; > > > > import com.itextpdf.text.BaseColor; > > import com.itextpdf.text.Document; > > import com.itextpdf.text.DocumentException; > > import com.itextpdf.text.Paragraph; > > import com.itextpdf.text.Rectangle; > > import com.itextpdf.text.pdf.PdfAction; > > import com.itextpdf.text.pdf.PdfAnnotation; > > import com.itextpdf.text.pdf.PdfFormField; > > import com.itextpdf.text.pdf.PdfName; > > import com.itextpdf.text.pdf.PdfPCell; > > import com.itextpdf.text.pdf.PdfPTable; > > import com.itextpdf.text.pdf.PdfWriter; > > import com.itextpdf.text.pdf.PushbuttonField; > > import java.io.FileNotFoundException; > > import java.io.FileOutputStream; > > import java.io.IOException; > > import java.util.logging.Level; > > import java.util.logging.Logger; > > > > public class PdfForms { > > > > private Document document; > > private PdfWriter writer; > > private static String pdfFile = System.getProperty("user.home") > > + "/pdfforms_test.pdf"; private static String cmd = > > "/opt/bin/acroread " + pdfFile; private static String httpAdress = > > "http://localhost/get_post_vars.php";; private PdfPTable table = new > > PdfPTable(1); > > > > private void addComboBox(String _fieldname) { > > String[] options = {"eins", "zwei", "drei", "vier"}; > > PdfFormField comboBox = PdfFormField.createCombo(writer, > > false, options, 0); comboBox.setWidget(new Rectangle(40, 780, 120, > > 800), PdfAnnotation.HIGHLIGHT_INVERT); > > comboBox.setFieldName(_fieldname); comboBox.setValueAsString("nix"); > > > > PdfPCell cell = new PdfPCell(); > > cell.setMinimumHeight(20); > > cell.setCellEvent(new FieldCell(comboBox, 20, writer)); > > table.addCell(cell); > > } > > > > private void addTextField(String _fieldname) { > > PdfFormField textField = > > PdfFormField.createTextField(writer, true, false, 500); > > textField.setWidget(new Rectangle(150, 600, 300, 700), > > PdfName._3D); textField.setFieldName(_fieldname); > > > > PdfPCell cell = new PdfPCell(); > > cell.setMinimumHeight(40); > > cell.setCellEvent(new FieldCell(textField, 40, writer)); > > table.addCell(cell); > > } > > > > private void addSendButton() { > > PushbuttonField pushButton = new PushbuttonField(writer, new > > Rectangle(150, 560, 200, 590), "pushButton"); > > pushButton.setBackgroundColor(BaseColor.LIGHT_GRAY); > > pushButton.setLayout(PushbuttonField.LAYOUT_ICON_TOP_LABEL_BOTTOM); > > pushButton.setOptions(PushbuttonField.VISIBLE_BUT_DOES_NOT_PRINT); > > pushButton.setText("push me"); > > > > try { > > PdfFormField submit = pushButton.getField(); > > submit.setAction(PdfAction.createSubmitForm(httpAdress, > > null, PdfAction.SUBMIT_HTML_FORMAT)); > > > > PdfPCell cell = new PdfPCell(); > > cell.setMinimumHeight(40); > > cell.setCellEvent(new FieldCell(submit, 40, writer)); > > table.addCell(cell); > > } catch (IOException ex) { > > Logger.getLogger(PdfForms.class.getName()).log(Level.SEVERE, > > null, ex); } catch (DocumentException ex) { > > Logger.getLogger(PdfForms.class.getName()).log(Level.SEVERE, > > null, ex); } > > > > } > > > > private void addContent() { > > for (int i = 0; i < 85; i++) { > > PdfPCell cell = new PdfPCell(new Paragraph("test")); > > table.addCell(cell); > > addTextField("text"+Integer.toString(i)); > > addComboBox("combo"+Integer.toString(i)); > > } > > // addTextField("a"); > > // addComboBox("b"); > > > > addSendButton(); > > try { > > document.add(table); > > } catch (DocumentException ex) { > > Logger.getLogger(PdfForms.class.getName()).log(Level.SEVERE, > > null, ex); } > > } > > > > private void showDocument() { > > try { > > Process p = Runtime.getRuntime().exec(cmd); > > p.waitFor(); > > } catch (InterruptedException ex) { > > Logger.getLogger(PdfForms.class.getName()).log(Level.SEVERE, > > null, ex); } catch (IOException ex) { > > Logger.getLogger(PdfForms.class.getName()).log(Level.SEVERE, > > null, ex); } > > > > } > > > > private void close() { > > this.document.close(); > > } > > > > public PdfForms() { > > try { > > this.document = new Document(); > > this.writer = PdfWriter.getInstance(document, new > > FileOutputStream(pdfFile)); this.document.open(); > > } catch (FileNotFoundException ex) { > > Logger.getLogger(PdfForms.class.getName()).log(Level.SEVERE, > > null, ex); } catch (DocumentException ex) { > > Logger.getLogger(PdfForms.class.getName()).log(Level.SEVERE, > > null, ex); } > > } > > > > public static void main(String[] args) { > > PdfForms p = new PdfForms(); > > p.addContent(); > > p.close(); > > p.showDocument(); > > System.exit(0); > > } > > } > > > > FieldCell.java ################################################# > > package pdfforms_test; > > > > import com.itextpdf.text.Rectangle; > > import com.itextpdf.text.pdf.PdfAnnotation; > > import com.itextpdf.text.pdf.PdfContentByte; > > import com.itextpdf.text.pdf.PdfFormField; > > import com.itextpdf.text.pdf.PdfPCell; > > import com.itextpdf.text.pdf.PdfPCellEvent; > > import com.itextpdf.text.pdf.PdfPTable; > > import com.itextpdf.text.pdf.PdfWriter; > > > > class FieldCell implements PdfPCellEvent { > > > > private PdfFormField formField; > > private PdfWriter writer; > > private int height; > > > > public FieldCell(PdfFormField _formField, int _height, PdfWriter > > _writer) { this.formField = _formField; > > this.height = _height; > > this.writer = _writer; > > } > > > > public void cellLayout(PdfPCell cell, Rectangle rect, > > PdfContentByte[] canvas) { try { > > PdfContentByte cb = canvas[PdfPTable.LINECANVAS]; > > //cb.reset(); > > formField.setWidget(new Rectangle(rect.getLeft(), > > rect.getTop()-height, > > rect.getRight(), > > rect.getTop()), > > PdfAnnotation.HIGHLIGHT_NONE); > > writer.addAnnotation(formField); > > } catch (Exception e) { > > System.out.println(e); > > } > > } > > } > > > > get_post_vars.php ############################################## > > <?php > > ob_start(); > > var_dump($_REQUEST); > > $vars = ob_get_contents(); > > ob_end_clean(); > > $f = fopen("/tmp/vars.txt","w"); > > fwrite($f,$vars); > > fclose($f); > > > > function ReadfileChunks($filename) { > > $chunksize = 1*(1024*1024); > > $chunksize = 512; > > $buffer = ''; > > $count = 0; > > $handle = fopen($filename, 'rb'); > > if ($handle === false) { > > return false; > > } > > while (!feof($handle)) { > > $buffer = fread($handle, $chunksize); > > echo $buffer; > > ob_flush(); > > flush(); > > } > > $status = fclose($handle); > > } > > > > $filename="erfolg.pdf"; > > header("Pragma: public"); > > header("Expires: 0"); > > header("Cache-Control: must-revalidate, post-check=0, pre-check=0"); > > header("Cache-Control: private", false); > > header("Content-Type: application/pdf"); > > header("Content-Disposition: attachment; filename=\"danke.pdf\""); > > header("Content-Transfer-Encoding: binary"); > > header("Content-Length: "....@filesize($filename)); > > ReadfileChunks($filename); > > ?> > > > > EOF ########################################################## > > > > ------------------------------------------------------------------------------ > > > > _______________________________________________ > > iText-questions mailing list > > iText-questions@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/itext-questions > > > > Buy the iText book: http://www.itextpdf.com/book/ > > Check the site with examples before you ask questions: > > http://www.1t3xt.info/examples/ You can also search the keywords > > list: http://1t3xt.info/tutorials/keywords/ > > > > ------------------------------------------------------------------------------ > > > > _______________________________________________ > > iText-questions mailing list > > iText-questions@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/itext-questions > > > > Buy the iText book: http://www.itextpdf.com/book/ > > Check the site with examples before you ask questions: > > http://www.1t3xt.info/examples/ You can also search the keywords > > list: http://1t3xt.info/tutorials/keywords/ > > > ------------------------------------------------------------------------------ > ThinkGeek and WIRED's GeekDad team up for the Ultimate > GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the > lucky parental unit. See the prize list and enter to win: > http://p.sf.net/sfu/thinkgeek-promo > _______________________________________________ > iText-questions mailing list > iText-questions@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/itext-questions > > Buy the iText book: http://www.itextpdf.com/book/ > Check the site with examples before you ask questions: > http://www.1t3xt.info/examples/ You can also search the keywords > list: http://1t3xt.info/tutorials/keywords/ > > ------------------------------------------------------------------------------ > ThinkGeek and WIRED's GeekDad team up for the Ultimate > GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the > lucky parental unit. See the prize list and enter to win: > http://p.sf.net/sfu/thinkgeek-promo > _______________________________________________ > iText-questions mailing list > iText-questions@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/itext-questions > > Buy the iText book: http://www.itextpdf.com/book/ > Check the site with examples before you ask questions: > http://www.1t3xt.info/examples/ You can also search the keywords > list: http://1t3xt.info/tutorials/keywords/ ------------------------------------------------------------------------------ ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo _______________________________________________ iText-questions mailing list iText-questions@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/itext-questions Buy the iText book: http://www.itextpdf.com/book/ Check the site with examples before you ask questions: http://www.1t3xt.info/examples/ You can also search the keywords list: http://1t3xt.info/tutorials/keywords/
