Example 1 with SimpleHtmlParser
use of org.olat.core.util.SimpleHtmlParser in project OpenOLAT by OpenOLAT.
the class IFrameDeliveryMapper method injectJavaScript.
/**
* it would be possible to access the iframe.document but there is no event
* sended when the content changes. Like this is is easier to inject the js
* code and resize the iframe like this.
*
* @param page
* @param addCheckForInlineEvents
* true: check if page is rendered in iframe, if yes send event
* to framework; false: don't do this check
* @return
*/
/**
* TODO:gs make more stable by only adding some js stuff to the end of the page. First check if document.height is ready
* when puttings js to the end or menachism like ext.onReady is needed
*/
private String injectJavaScript(String page, String mimetype, boolean addCheckForInlineEvents, boolean anchorFirefoxWorkaround) {
// do not use parser and just check for css and script stuff myself and append just before body and head
SimpleHtmlParser parser = new SimpleHtmlParser(page);
if (!parser.isValidHtml()) {
return page;
}
String docType = parser.getHtmlDocType();
HtmlOutput sb = new HtmlOutput(docType, themeBaseUri, page.length() + 1000);
if (docType != null)
sb.append(docType).append("\n");
if (parser.getXhtmlNamespaces() == null)
sb.append("<html><head>");
else {
sb.append(parser.getXhtmlNamespaces());
// neded to allow body onload attribute
sb.append("<head>\n<meta http-equiv=\"Content-Script-Type\" content=\"text/javascript\"/>");
}
// <meta http-equiv="content-type" content="text/html; charset=utf-8" />
sb.append("\n<meta http-equiv=\"content-type\" content=\"").append(mimetype).append("\"");
// close tag only when xhtml to validate
if (docType != null && docType.indexOf("XHTML") > 0)
sb.append("/");
sb.append(">");
if (openolatCss != null && openolatCss.booleanValue()) {
sb.appendOpenolatCss();
}
if (!parser.hasOwnCss()) {
if (openolatCss == null || openolatCss.booleanValue()) {
// add olat content css as used in html editor
// css only loaded once in HtmlOutput
sb.appendOpenolatCss();
}
if (customCssDelegate != null && customCssDelegate.getCustomCSS() != null && customCssDelegate.getCustomCSS().getCSSURLIFrame() != null) {
String customCssURL = customCssDelegate.getCustomCSS().getCSSURLIFrame();
sb.appendCss(customCssURL, "customcss");
} else if (customCssURL != null) {
// add the custom CSS, e.g. the course css that overrides the standard content css
sb.appendCss(customCssURL, "customcss");
}
}
if (enableTextmarking) {
if (log.isDebug()) {
log.debug("Textmarking is enabled, including tooltips js files into iframe source...");
}
sb.appendJQuery();
sb.appendGlossary();
}
if (jQueryEnabled != null && jQueryEnabled.booleanValue()) {
sb.appendJQuery();
}
if (prototypeEnabled != null && prototypeEnabled.booleanValue()) {
sb.appendPrototype();
}
// Load some iframe.js helper code
sb.append("\n<script type=\"text/javascript\">\n/* <![CDATA[ */\n");
// Set the iframe id, used by the resize function. Important to set before iframe.js is loaded
sb.append("b_iframeid=\"").append(frameId).append("\";");
sb.append("b_isInlineUri=").append(Boolean.valueOf(addCheckForInlineEvents).toString()).append(";");
sb.append("\n/* ]]> */\n</script>");
sb.appendStaticJs("js/openolat/iframe.js");
// resizeing is meaningless anyway.
if (parser.getHtmlContent().length() > 0) {
sb.append("\n<script type=\"text/javascript\">\n/* <![CDATA[ */\n");
// register the resize code to be executed on document load and click events
if (adjusteightAutomatically) {
sb.append("b_addOnloadEvent(b_sizeIframe);");
sb.append("b_addOnclickEvent(b_sizeIframe);");
}
// register the tooltips enabling on document load event
sb.append("b_addOnloadEvent(b_hideExtMessageBox);");
if (addCheckForInlineEvents) {
// iframe and ignore all other requests (files in framesets, sub-iframes, AJAX calls etc)
if ((System.currentTimeMillis() - this.suppressEndlessReload) > 2000)
sb.append("b_addOnloadEvent(b_sendNewUriEventToParent);");
this.suppressEndlessReload = System.currentTimeMillis();
}
sb.append("b_addOnloadEvent(b_changeLinkTargets);");
if (enableTextmarking) {
sb.append("b_addOnloadEvent(b_glossaryHighlight);");
}
if (anchorFirefoxWorkaround) {
sb.append("b_addOnloadEvent(b_anchorFirefoxWorkaround);");
}
sb.append("\n/* ]]> */\n</script>");
}
String origHTMLHead = parser.getHtmlHead();
// the header of the page
if ((page.indexOf("<math") > -1 || page.indexOf("class=\"math\"") != -1 || page.indexOf("class='math'") != -1) && (origHTMLHead == null || origHTMLHead.indexOf("jsMath/easy/load.js") == -1)) {
sb.appendJsMath();
}
// add some custom header things like js code or css
if (customHeaderContent != null) {
sb.append(customHeaderContent);
}
// Add HTML header stuff from original page: css, javascript, title etc.
if (origHTMLHead != null)
sb.append(origHTMLHead);
sb.append("\n</head>\n");
// use the original body tag, may include all kind of attributes (class, style, onload, on...)
sb.append(parser.getBodyTag());
// finally add content and finish page
sb.append(parser.getHtmlContent());
sb.append("</body></html>");
return sb.toString();
}
Also used :
SimpleHtmlParser(org.olat.core.util.SimpleHtmlParser)
Example 2 with SimpleHtmlParser
use of org.olat.core.util.SimpleHtmlParser in project openolat by klemens.
the class IFrameDeliveryMapper method injectJavaScript.
/**
* it would be possible to access the iframe.document but there is no event
* sended when the content changes. Like this is is easier to inject the js
* code and resize the iframe like this.
*
* @param page
* @param addCheckForInlineEvents
* true: check if page is rendered in iframe, if yes send event
* to framework; false: don't do this check
* @return
*/
/**
* TODO:gs make more stable by only adding some js stuff to the end of the page. First check if document.height is ready
* when puttings js to the end or menachism like ext.onReady is needed
*/
private String injectJavaScript(String page, String mimetype, boolean addCheckForInlineEvents, boolean anchorFirefoxWorkaround) {
// do not use parser and just check for css and script stuff myself and append just before body and head
SimpleHtmlParser parser = new SimpleHtmlParser(page);
if (!parser.isValidHtml()) {
return page;
}
String docType = parser.getHtmlDocType();
HtmlOutput sb = new HtmlOutput(docType, themeBaseUri, page.length() + 1000);
if (docType != null)
sb.append(docType).append("\n");
if (parser.getXhtmlNamespaces() == null)
sb.append("<html><head>");
else {
sb.append(parser.getXhtmlNamespaces());
// neded to allow body onload attribute
sb.append("<head>\n<meta http-equiv=\"Content-Script-Type\" content=\"text/javascript\"/>");
}
// <meta http-equiv="content-type" content="text/html; charset=utf-8" />
sb.append("\n<meta http-equiv=\"content-type\" content=\"").append(mimetype).append("\"");
// close tag only when xhtml to validate
if (docType != null && docType.indexOf("XHTML") > 0)
sb.append("/");
sb.append(">");
if (openolatCss != null && openolatCss.booleanValue()) {
sb.appendOpenolatCss();
}
if (!parser.hasOwnCss()) {
if (openolatCss == null || openolatCss.booleanValue()) {
// add olat content css as used in html editor
// css only loaded once in HtmlOutput
sb.appendOpenolatCss();
}
if (customCssDelegate != null && customCssDelegate.getCustomCSS() != null && customCssDelegate.getCustomCSS().getCSSURLIFrame() != null) {
String customCssURL = customCssDelegate.getCustomCSS().getCSSURLIFrame();
sb.appendCss(customCssURL, "customcss");
} else if (customCssURL != null) {
// add the custom CSS, e.g. the course css that overrides the standard content css
sb.appendCss(customCssURL, "customcss");
}
}
if (enableTextmarking) {
if (log.isDebug()) {
log.debug("Textmarking is enabled, including tooltips js files into iframe source...");
}
sb.appendJQuery();
sb.appendGlossary();
}
if (jQueryEnabled != null && jQueryEnabled.booleanValue()) {
sb.appendJQuery();
}
if (prototypeEnabled != null && prototypeEnabled.booleanValue()) {
sb.appendPrototype();
}
// Load some iframe.js helper code
sb.append("\n<script type=\"text/javascript\">\n/* <![CDATA[ */\n");
// Set the iframe id, used by the resize function. Important to set before iframe.js is loaded
sb.append("b_iframeid=\"").append(frameId).append("\";");
sb.append("b_isInlineUri=").append(Boolean.valueOf(addCheckForInlineEvents).toString()).append(";");
sb.append("\n/* ]]> */\n</script>");
sb.appendStaticJs("js/openolat/iframe.js");
// resizeing is meaningless anyway.
if (parser.getHtmlContent().length() > 0) {
sb.append("\n<script type=\"text/javascript\">\n/* <![CDATA[ */\n");
// register the resize code to be executed on document load and click events
if (adjusteightAutomatically) {
sb.append("b_addOnloadEvent(b_sizeIframe);");
sb.append("b_addOnclickEvent(b_sizeIframe);");
}
// register the tooltips enabling on document load event
sb.append("b_addOnloadEvent(b_hideExtMessageBox);");
if (addCheckForInlineEvents) {
// iframe and ignore all other requests (files in framesets, sub-iframes, AJAX calls etc)
if ((System.currentTimeMillis() - this.suppressEndlessReload) > 2000)
sb.append("b_addOnloadEvent(b_sendNewUriEventToParent);");
this.suppressEndlessReload = System.currentTimeMillis();
}
sb.append("b_addOnloadEvent(b_changeLinkTargets);");
if (enableTextmarking) {
sb.append("b_addOnloadEvent(b_glossaryHighlight);");
}
if (anchorFirefoxWorkaround) {
sb.append("b_addOnloadEvent(b_anchorFirefoxWorkaround);");
}
sb.append("\n/* ]]> */\n</script>");
}
String origHTMLHead = parser.getHtmlHead();
// the header of the page
if ((page.indexOf("<math") > -1 || page.indexOf("class=\"math\"") != -1 || page.indexOf("class='math'") != -1) && (origHTMLHead == null || origHTMLHead.indexOf("jsMath/easy/load.js") == -1)) {
sb.appendJsMath();
}
// add some custom header things like js code or css
if (customHeaderContent != null) {
sb.append(customHeaderContent);
}
// Add HTML header stuff from original page: css, javascript, title etc.
if (origHTMLHead != null)
sb.append(origHTMLHead);
sb.append("\n</head>\n");
// use the original body tag, may include all kind of attributes (class, style, onload, on...)
sb.append(parser.getBodyTag());
// finally add content and finish page
sb.append(parser.getHtmlContent());
sb.append("</body></html>");
return sb.toString();
}
Also used :
SimpleHtmlParser(org.olat.core.util.SimpleHtmlParser)
Example 3 with SimpleHtmlParser
use of org.olat.core.util.SimpleHtmlParser in project openolat by klemens.
the class TunnelComponent method getAsyncMediaResource.
/**
* @see org.olat.core.gui.media.AsyncMediaResponsible#getAsyncMediaResource(org.olat.core.gui.UserRequest)
*/
public MediaResource getAsyncMediaResource(UserRequest ureq) {
String moduleURI = ureq.getModuleURI();
// ../index.php instead everything works as expected
if (moduleURI == null) {
// after a click on some other component e.g.
if (!firstCall)
return null;
// reset first call
firstCall = false;
}
TURequest tureq = new TURequest(config, ureq);
fillTURequestWithUserInfo(tureq, ureq);
HttpResponse response = fetch(tureq, httpClientInstance);
if (response == null) {
setFetchError();
return null;
}
Header responseHeader = response.getFirstHeader("Content-Type");
if (responseHeader == null) {
setFetchError();
return null;
}
String mimeType = responseHeader.getValue();
if (mimeType != null && mimeType.startsWith("text/html")) {
// we have html content, let doDispatch handle it for
// inline rendering, update hreq for next content request
String body;
try {
body = EntityUtils.toString(response.getEntity());
} catch (IOException e) {
log.warn("Problems when tunneling URL::" + tureq.getUri(), e);
return null;
}
SimpleHtmlParser parser = new SimpleHtmlParser(body);
if (!parser.isValidHtml()) {
// asynchronuous
return new HttpRequestMediaResource(response);
}
htmlHead = parser.getHtmlHead();
jsOnLoad = parser.getJsOnLoad();
htmlContent = parser.getHtmlContent();
setDirty(true);
} else {
// this is a async browser
return new HttpRequestMediaResource(response);
}
// refetch
return null;
}
Also used :
TURequest(org.olat.course.nodes.tu.TURequest)
HttpRequestMediaResource(org.olat.core.gui.media.HttpRequestMediaResource)
Header(org.apache.http.Header)
HttpResponse(org.apache.http.HttpResponse)
IOException(java.io.IOException)
SimpleHtmlParser(org.olat.core.util.SimpleHtmlParser)
Example 4 with SimpleHtmlParser
use of org.olat.core.util.SimpleHtmlParser in project OpenOLAT by OpenOLAT.
the class TunnelComponent method getAsyncMediaResource.
/**
* @see org.olat.core.gui.media.AsyncMediaResponsible#getAsyncMediaResource(org.olat.core.gui.UserRequest)
*/
public MediaResource getAsyncMediaResource(UserRequest ureq) {
String moduleURI = ureq.getModuleURI();
// ../index.php instead everything works as expected
if (moduleURI == null) {
// after a click on some other component e.g.
if (!firstCall)
return null;
// reset first call
firstCall = false;
}
TURequest tureq = new TURequest(config, ureq);
fillTURequestWithUserInfo(tureq, ureq);
HttpResponse response = fetch(tureq, httpClientInstance);
if (response == null) {
setFetchError();
return null;
}
Header responseHeader = response.getFirstHeader("Content-Type");
if (responseHeader == null) {
setFetchError();
return null;
}
String mimeType = responseHeader.getValue();
if (mimeType != null && mimeType.startsWith("text/html")) {
// we have html content, let doDispatch handle it for
// inline rendering, update hreq for next content request
String body;
try {
body = EntityUtils.toString(response.getEntity());
} catch (IOException e) {
log.warn("Problems when tunneling URL::" + tureq.getUri(), e);
return null;
}
SimpleHtmlParser parser = new SimpleHtmlParser(body);
if (!parser.isValidHtml()) {
// asynchronuous
return new HttpRequestMediaResource(response);
}
htmlHead = parser.getHtmlHead();
jsOnLoad = parser.getJsOnLoad();
htmlContent = parser.getHtmlContent();
setDirty(true);
} else {
// this is a async browser
return new HttpRequestMediaResource(response);
}
// refetch
return null;
}
Also used :
TURequest(org.olat.course.nodes.tu.TURequest)
HttpRequestMediaResource(org.olat.core.gui.media.HttpRequestMediaResource)
Header(org.apache.http.Header)
HttpResponse(org.apache.http.HttpResponse)
IOException(java.io.IOException)
SimpleHtmlParser(org.olat.core.util.SimpleHtmlParser)
Example 5 with SimpleHtmlParser
use of org.olat.core.util.SimpleHtmlParser in project OpenOLAT by OpenOLAT.
the class TunnelComponent method fetchFirstResource.
private void fetchFirstResource(UserRequest ureq) {
// config, ureq);
TURequest tureq = new TURequest();
// not used
tureq.setContentType(null);
tureq.setMethod("GET");
tureq.setParameterMap(Collections.<String, String[]>emptyMap());
tureq.setQueryString(query);
if (startUri != null) {
if (startUri.startsWith("/")) {
tureq.setUri(startUri);
} else {
tureq.setUri("/" + startUri);
}
}
fillTURequestWithUserInfo(tureq, ureq);
HttpResponse response = fetch(tureq, httpClientInstance);
if (response == null) {
setFetchError();
} else {
Header responseHeader = response.getFirstHeader("Content-Type");
String mimeType;
if (responseHeader == null) {
setFetchError();
mimeType = null;
} else {
mimeType = responseHeader.getValue();
}
if (mimeType != null && mimeType.startsWith("text/html")) {
// we have html content, let doDispatch handle it for
// inline rendering, update hreq for next content request
String body;
try {
body = EntityUtils.toString(response.getEntity());
} catch (IOException e) {
log.warn("Problems when tunneling URL::" + tureq.getUri(), e);
htmlContent = "Error: cannot display inline :" + tureq.getUri() + ": Unknown transfer problem '";
return;
}
SimpleHtmlParser parser = new SimpleHtmlParser(body);
if (!parser.isValidHtml()) {
// this is not valid HTML, deliver
// asynchronuous
}
htmlHead = parser.getHtmlHead();
jsOnLoad = parser.getJsOnLoad();
htmlContent = parser.getHtmlContent();
} else {
htmlContent = "Error: cannot display inline :" + tureq.getUri() + ": mime type was '" + mimeType + "' but expected 'text/html'. Response header was '" + responseHeader + "'.";
}
}
}
Also used :
TURequest(org.olat.course.nodes.tu.TURequest)
Header(org.apache.http.Header)
HttpResponse(org.apache.http.HttpResponse)
IOException(java.io.IOException)
SimpleHtmlParser(org.olat.core.util.SimpleHtmlParser)
Aggregations
SimpleHtmlParser (org.olat.core.util.SimpleHtmlParser)10
IOException (java.io.IOException)4
Header (org.apache.http.Header)4
HttpResponse (org.apache.http.HttpResponse)4
TURequest (org.olat.course.nodes.tu.TURequest)4
InputStream (java.io.InputStream)2
HttpRequestMediaResource (org.olat.core.gui.media.HttpRequestMediaResource)2
AssertException (org.olat.core.logging.AssertException)2
