Re: [External] : Re: Question about XML-FO Convertor related to Proxy settings for External Images
Ashish Singhal <[email protected]> Wed, 6 Sep 2023 23:03:44 +0000
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--===============8779627285311450464== Content-Language: en-US Content-Type: multipart/alternative; boundary="_000_BYAPR10MB2950FCB07807DF30C638E151F3EFABYAPR10MB2950namp_" --_000_BYAPR10MB2950FCB07807DF30C638E151F3EFABYAPR10MB2950namp_ Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi Hussein, Thanks a lot for your guidance. Based on this info, we were able to pinpoin= t the issue on our side. We were setting the proxy values incorrectly. Much appreciated. From: Hussein Shafie <[email protected]> Date: Wednesday, September 6, 2023 at 5:49 AM To: Ashish Singhal <[email protected]> Cc: Jeff Haynes <[email protected]>, Surendra Kumar <surendra.kumar@or= acle.com>, [email protected] <[email protected]> Subject: [External] : Re: [XFC] Question about XML-FO Convertor related to = Proxy settings for External Images On 9/5/23 19:12, Ashish Singhal wrote: > > I am in the Oracle CPQ Cloud team. We license XmlMind=92s XML-FO Converto= r > to output Docx documents. Yes. Purchased in 2015. Hence a very old version not supported by us anymore. > We have a requirement to support proxies for > External images referenced in fo tags. The issue we are facing is that > it doesn=92t resolve the external image when there a proxy server on the > envns where the FO conversion is happening. > > Sample: > > <fo:external-graphic src=3D"url(https://urldefense.com/v3/__http://nginx.= org/nginx.png__;!!ACWV5N9M2RV99hQ!KNwjUH9-Ki8Wzusd-eAjF9Y9SPvGGddDR3YoWA7e4= ocjsbirlc5-WCtPx7nQ_nPRVoViRLUywDqNnfwtigka$ )" width=3D"auto" > height=3D"auto" content-width=3D"auto" content-height=3D"auto"/> > > Here is what we have tried > > * Download the latest XML-FO Convertor > * Install the samples and binaries onto an envn that requires the use > of proxy > * Before setting proxy envn vars > o Curl hangs/blocks > o Converting sample=92s userguide.fo with above fo tag also hangs/b= locks > * After setting proxy envn vars > o Curl succeeds > o Converting sample=92s userguide.fo with above fo tag doesn=92t > blocks but outputs the message > * warning: failed to load image "https://urldefense.com/v3/__http://ngi= nx.org/nginx.png__;!!ACWV5N9M2RV99hQ!KNwjUH9-Ki8Wzusd-eAjF9Y9SPvGGddDR3YoWA= 7e4ocjsbirlc5-WCtPx7nQ_nPRVoViRLUywDqNnfwtigka$ ": > http://www-proxy.us.oracle.com > (file:/Users/ASSINGHA/Downloads/xfc_eval_java-6_4_1/samples/userguide= 2.fo, line #428, column #1993) > o It output an empty image file > > What is the solution? Is there a workaround? > > Setting of proxy vars > > * We are tried various options but nothing works for XML-FO Convertor > * Setting of envn vars > * Setting java vars while running the convertor script > * exec java -Dhttp.proxyHost=3Dhttp://www-proxy.us.oracle.com > -Dhttp.proxyPort=3D80 -Djava.awt.headless=3Dtrue > com.xmlmind.fo.converter.Driver > Sorry but we cannot help you. This is a Java question, not a question related to our product. XMLmind XML-FO Converter downloads the image files using stock Java classes, that is, it simply does: --- (new URL(location)).openStream(); --- You have the full source code of our product. You can check this by yourself (src/com/xmlmind/fo/util/URLUtil.java, src/com/xmlmind/fo/graphic/GraphicFactoryImpl.java). In other words, any Java program which would attempt to download https://urldefense.com/v3/__http://nginx.org/nginx.png__;!!ACWV5N9M2RV99hQ!= KNwjUH9-Ki8Wzusd-eAjF9Y9SPvGGddDR3YoWA7e4ocjsbirlc5-WCtPx7nQ_nPRVoViRLUywDq= Nnfwtigka$<https://urldefense.com/v3/__http:/nginx.org/nginx.png__;!!ACWV5N= 9M2RV99hQ!KNwjUH9-Ki8Wzusd-eAjF9Y9SPvGGddDR3YoWA7e4ocjsbirlc5-WCtPx7nQ_nPRV= oViRLUywDqNnfwtigka$> in the same working environment would report exactly the same error as XMLmind XML-FO Converter. exec java -Dhttp.proxyHost=3Dhttp://www-proxy.us.oracle.com -Dhttp.proxyPort=3D80 ... may be the good approach to solve your problem. However, make sure to get ALL the system properties (-Dvar=3Dvalue) RIGHT given the version of Java you use. See for example, for Java 8,: https://docs.oracle.com/javase/8/docs/api/java/net/doc-files/net-properties= .html#Proxies Not tested at all, but just to give you a general idea, may be (a) removing all -Dx=3Dy, (b) setting the environment variables and (c) -Djava.net.useSystemProxies=3Dtrue would work for you. Depends on the operating system and the version of Java you use. --- PS: Well known Java caveat: Java does not follow HTTP to HTTPS redirection. Therefore if https://urldefense.com/v3/__http://nginx.org/ngin= x.png__;!!ACWV5N9M2RV99hQ!KNwjUH9-Ki8Wzusd-eAjF9Y9SPvGGddDR3YoWA7e4ocjsbirl= c5-WCtPx7nQ_nPRVoViRLUywDqNnfwtigka$<https://urldefense.com/v3/__http:/ngin= x.org/nginx.png__;!!ACWV5N9M2RV99hQ!KNwjUH9-Ki8Wzusd-eAjF9Y9SPvGGddDR3YoWA7= e4ocjsbirlc5-WCtPx7nQ_nPRVoViRLUywDqNnfwtigka$> redirects to https://urldefense.com/v3/__https://nginx.org/nginx.png__;!!ACWV5N9M2RV99hQ= !KNwjUH9-Ki8Wzusd-eAjF9Y9SPvGGddDR3YoWA7e4ocjsbirlc5-WCtPx7nQ_nPRVoViRLUywD= qNnaAgVp4d$<https://urldefense.com/v3/__https:/nginx.org/nginx.png__;!!ACWV= 5N9M2RV99hQ!KNwjUH9-Ki8Wzusd-eAjF9Y9SPvGGddDR3YoWA7e4ocjsbirlc5-WCtPx7nQ_nP= RVoViRLUywDqNnaAgVp4d$> or http://www-proxy.us.oracle.com redirects to https://www-proxy.us.oracle.com, it's unlikely to work. --_000_BYAPR10MB2950FCB07807DF30C638E151F3EFABYAPR10MB2950namp_ Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable <html xmlns:o=3D"urn:schemas-microsoft-com:office:office" xmlns:w=3D"urn:sc= hemas-microsoft-com:office:word" xmlns:m=3D"http://schemas.microsoft.com/of= fice/2004/12/omml" xmlns=3D"http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3DWindows-1= 252"> <meta name=3D"Generator" content=3D"Microsoft Word 15 (filtered medium)"> <style><!-- /* Font Definitions */ @font-face {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4;} @font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0in; font-size:10.0pt; font-family:"Calibri",sans-serif;} a:link, span.MsoHyperlink {mso-style-priority:99; color:blue; text-decoration:underline;} .MsoChpDefault {mso-style-type:export-only; font-size:10.0pt; mso-ligatures:none;} @page WordSection1 {size:8.5in 11.0in; margin:1.0in 1.0in 1.0in 1.0in;} div.WordSection1 {page:WordSection1;} --></style> </head> <body lang=3D"EN-US" link=3D"blue" vlink=3D"purple" style=3D"word-wrap:brea= k-word"> <div class=3D"WordSection1"> <p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Hi Hussein,<o:p></o= :p></span></p> <p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p> </o:p></= span></p> <p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Thanks a lot for yo= ur guidance. Based on this info, we were able to pinpoint the issue on our = side. We were setting the proxy values incorrectly.<o:p></o:p></span></p> <p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p> </o:p></= span></p> <p class=3D"MsoNormal"><span style=3D"font-size:11.0pt">Much appreciated.<o= :p></o:p></span></p> <p class=3D"MsoNormal"><span style=3D"font-size:11.0pt"><o:p> </o:p></= span></p> <div id=3D"mail-editor-reference-message-container"> <div> <div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in = 0in 0in"> <p class=3D"MsoNormal" style=3D"margin-bottom:12.0pt"><b><span style=3D"fon= t-size:12.0pt;color:black">From: </span></b><span style=3D"font-size:12.0pt;color:black">Hussein Shafie <= [email protected]><br> <b>Date: </b>Wednesday, September 6, 2023 at 5:49 AM<br> <b>To: </b>Ashish Singhal <[email protected]><br> <b>Cc: </b>Jeff Haynes <[email protected]>, Surendra Kumar <s= [email protected]>, [email protected] <xfc-support@xmlmi= nd.com><br> <b>Subject: </b>[External] : Re: [XFC] Question about XML-FO Convertor rela= ted to Proxy settings for External Images<o:p></o:p></span></p> </div> <div> <p class=3D"MsoNormal" style=3D"margin-bottom:12.0pt"><span style=3D"font-s= ize:11.0pt">On 9/5/23 19:12, Ashish Singhal wrote:<br> > <br> > I am in the Oracle CPQ Cloud team. We license XmlMind=92s XML-FO Conve= rtor <br> > to output Docx documents. <br> <br> Yes. Purchased in 2015. Hence a very old version not supported by us <br> anymore.<br> <br> <br> <br> > We have a requirement to support proxies for <br> > External images referenced in fo tags. The issue we are facing is that= <br> > it doesn=92t resolve the external image when there a proxy server on t= he <br> > envns where the FO conversion is happening.<br> > <br> > Sample:<br> > <br> > <fo:external-graphic src=3D"url(https://urldefense.com/v3/__ht= tp://nginx.org/nginx.png__;!!ACWV5N9M2RV99hQ!KNwjUH9-Ki8Wzusd-eAjF9Y9SPvGGd= dDR3YoWA7e4ocjsbirlc5-WCtPx7nQ_nPRVoViRLUywDqNnfwtigka$ )" width=3D&qu= ot;auto" <br> > height=3D"auto" content-width=3D"auto" content-hei= ght=3D"auto"/><br> > <br> > Here is what we have tried<br> > <br> > * Download the latest XML-FO Convertor<br> > * Install the samples and binaries onto an envn that requi= res the use<br> > of proxy<br> > * Before setting proxy envn vars<br> > o Curl hangs/blocks<br> > o Converting sample=92s userguide.= fo with above fo tag also hangs/blocks<br> > * After setting proxy envn vars<br> > o Curl succeeds<br> > o Converting sample=92s userguide.= fo with above fo tag doesn=92t<br> > blocks but outputs the= message <br> > * warning: failed to load image "https://urldefense.c= om/v3/__http://nginx.org/nginx.png__;!!ACWV5N9M2RV99hQ!KNwjUH9-Ki8Wzusd-eAj= F9Y9SPvGGddDR3YoWA7e4ocjsbirlc5-WCtPx7nQ_nPRVoViRLUywDqNnfwtigka$ ":<b= r> > </span><a href=3D"http://www-proxy.us.oracle.c= om"><span style=3D"font-size:11.0pt">http://www-proxy.us.oracle.com</span><= /a><span style=3D"font-size:11.0pt"><br> > (file:/Users/ASSINGHA/Downloads/xfc_eval_java-= 6_4_1/samples/userguide2.fo, line #428, column #1993)<br> > o It output an empty image file<br= > > <br> > What is the solution? Is there a workaround?<br> > <br> > Setting of proxy vars<br> > <br> > * We are tried various options but nothing works for XML-F= O Convertor<br> > * Setting of envn vars<br> > * Setting java vars while running the convertor script<br> > * exec java -Dhttp.proxyHost=3Dhttp://www-proxy.us.oracle.= com<br> > -Dhttp.proxyPort=3D80 -Djava.awt.headless=3Dtr= ue<br> > com.xmlmind.fo.converter.Driver<br> > <br> <br> <br> Sorry but we cannot help you. This is a Java question, not a question <br> related to our product.<br> <br> XMLmind XML-FO Converter downloads the image files using stock Java <br> classes, that is, it simply does:<br> ---<br> (new URL(location)).openStream();<br> ---<br> You have the full source code of our product. You can check this by <br> yourself (src/com/xmlmind/fo/util/URLUtil.java, <br> src/com/xmlmind/fo/graphic/GraphicFactoryImpl.java).<br> <br> In other words, any Java program which would attempt to download <br> </span><a href=3D"https://urldefense.com/v3/__http:/nginx.org/nginx.png__;!= !ACWV5N9M2RV99hQ!KNwjUH9-Ki8Wzusd-eAjF9Y9SPvGGddDR3YoWA7e4ocjsbirlc5-WCtPx7= nQ_nPRVoViRLUywDqNnfwtigka$"><span style=3D"font-size:11.0pt">https://urlde= fense.com/v3/__http://nginx.org/nginx.png__;!!ACWV5N9M2RV99hQ!KNwjUH9-Ki8Wz= usd-eAjF9Y9SPvGGddDR3YoWA7e4ocjsbirlc5-WCtPx7nQ_nPRVoViRLUywDqNnfwtigka$</s= pan></a><span style=3D"font-size:11.0pt"> in the same working environment would report <br> exactly the same error as XMLmind XML-FO Converter.<br> <br> exec java -Dhttp.proxyHost=3Dhttp://www-proxy.us.oracle.com<br> -Dhttp.proxyPort=3D80 ... may be the good approach to solve your problem.<b= r> <br> However, make sure to get ALL the system properties (-Dvar=3Dvalue) RIGHT <= br> given the version of Java you use. See for example, for Java 8,: <br> </span><a href=3D"https://docs.oracle.com/javase/8/docs/api/java/net/doc-fi= les/net-properties.html#Proxies"><span style=3D"font-size:11.0pt">https://d= ocs.oracle.com/javase/8/docs/api/java/net/doc-files/net-properties.html#Pro= xies</span></a><span style=3D"font-size:11.0pt"><br> <br> Not tested at all, but just to give you a general idea, may be (a) <br> removing all -Dx=3Dy, (b) setting the environment variables and (c) <br> -Djava.net.useSystemProxies=3Dtrue would work for you. Depends on the <br> operating system and the version of Java you use.<br> <br> <br> <br> <br> ---<br> PS: Well known Java caveat: Java does not follow HTTP to HTTPS <br> redirection. Therefore if </span><a href=3D"https://urldefense.com/v3/__htt= p:/nginx.org/nginx.png__;!!ACWV5N9M2RV99hQ!KNwjUH9-Ki8Wzusd-eAjF9Y9SPvGGddD= R3YoWA7e4ocjsbirlc5-WCtPx7nQ_nPRVoViRLUywDqNnfwtigka$"><span style=3D"font-= size:11.0pt">https://urldefense.com/v3/__http://nginx.org/nginx.png__;!!ACW= V5N9M2RV99hQ!KNwjUH9-Ki8Wzusd-eAjF9Y9SPvGGddDR3YoWA7e4ocjsbirlc5-WCtPx7nQ_n= PRVoViRLUywDqNnfwtigka$</span></a><span style=3D"font-size:11.0pt"> redirects to <br> </span><a href=3D"https://urldefense.com/v3/__https:/nginx.org/nginx.png__;= !!ACWV5N9M2RV99hQ!KNwjUH9-Ki8Wzusd-eAjF9Y9SPvGGddDR3YoWA7e4ocjsbirlc5-WCtPx= 7nQ_nPRVoViRLUywDqNnaAgVp4d$"><span style=3D"font-size:11.0pt">https://urld= efense.com/v3/__https://nginx.org/nginx.png__;!!ACWV5N9M2RV99hQ!KNwjUH9-Ki8= Wzusd-eAjF9Y9SPvGGddDR3YoWA7e4ocjsbirlc5-WCtPx7nQ_nPRVoViRLUywDqNnaAgVp4d$<= /span></a><span style=3D"font-size:11.0pt"> or </span><a href=3D"http://www-proxy.us.oracle.com"><span style=3D"font-s= ize:11.0pt">http://www-proxy.us.oracle.com</span></a><span style=3D"font-si= ze:11.0pt"> redirects <br> to </span><a href=3D"https://www-proxy.us.oracle.com"><span style=3D"font-s= ize:11.0pt">https://www-proxy.us.oracle.com</span></a><span style=3D"font-s= ize:11.0pt">, it's unlikely to work.<br> <br> <o:p></o:p></span></p> </div> </div> </div> </div> </body> </html> --_000_BYAPR10MB2950FCB07807DF30C638E151F3EFABYAPR10MB2950namp_-- --===============8779627285311450464== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline -- XMLmind FO Converter Support List [email protected] http://www.xmlmind.com/mailman/listinfo/xfc-support --===============8779627285311450464==--