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-rwxr-xr-xhtroot/js/rss2.js167
-rwxr-xr-xhtroot/rssTerminal.html151
2 files changed, 318 insertions, 0 deletions
diff --git a/htroot/js/rss2.js b/htroot/js/rss2.js
new file mode 100755
index 000000000..68387d648
--- /dev/null
+++ b/htroot/js/rss2.js
@@ -0,0 +1,167 @@
+// parser for rss2
+
+function RSS2Enclosure(encElement) {
+ if (encElement == null) {
+ this.url = null;
+ this.length = null;
+ this.type = null;
+ } else {
+ this.url = encElement.getAttribute("url");
+ this.length = encElement.getAttribute("length");
+ this.type = encElement.getAttribute("type");
+ }
+}
+
+function RSS2Guid(guidElement) {
+ if (guidElement == null) {
+ this.isPermaLink = null;
+ this.value = null;
+ } else {
+ this.isPermaLink = guidElement.getAttribute("isPermaLink");
+ this.value = guidElement.childNodes[0].nodeValue;
+ }
+}
+
+function RSS2Source(souElement) {
+ if (souElement == null) {
+ this.url = null;
+ this.value = null;
+ } else {
+ this.url = souElement.getAttribute("url");
+ this.value = souElement.childNodes[0].nodeValue;
+ }
+}
+
+function RSS2Item(itemxml) {
+ //required
+ this.title;
+ this.link;
+ this.description;
+
+ //optional vars
+ this.author;
+ this.comments;
+ this.pubDate;
+
+ //optional objects
+ this.category;
+ this.enclosure;
+ this.guid;
+ this.source;
+
+ var properties = new Array("title", "link", "description", "author", "comments", "pubDate");
+ //var properties = new Array("title", "link");
+ var tmpElement = null;
+ for (var i=0; i<properties.length; i++) {
+ tmpElement = itemxml.getElementsByTagName(properties[i])[0];
+ if ((tmpElement != null) && (tmpElement.firstChild))
+ eval("this."+properties[i]+"=tmpElement.firstChild.nodeValue");
+ }
+
+ this.category = new RSS2Category(itemxml.getElementsByTagName("category")[0]);
+ this.enclosure = new RSS2Enclosure(itemxml.getElementsByTagName("enclosure")[0]);
+ this.guid = new RSS2Guid(itemxml.getElementsByTagName("guid")[0]);
+ this.source = new RSS2Source(itemxml.getElementsByTagName("source")[0]);
+}
+
+function RSS2Category(catElement) {
+ if (catElement == null) {
+ this.domain = null;
+ this.value = null;
+ } else {
+ this.domain = catElement.getAttribute("domain");
+ this.value = catElement.childNodes[0].nodeValue;
+ }
+}
+
+function RSS2Image(imgElement) {
+ if (imgElement == null) {
+ this.url = null;
+ this.link = null;
+ this.width = null;
+ this.height = null;
+ this.description = null;
+ } else {
+ imgAttribs = new Array("url","title","link","width","height","description");
+ for (var i=0; i<imgAttribs.length; i++)
+ if (imgElement.getAttribute(imgAttribs[i]) != null)
+ eval("this."+imgAttribs[i]+"=imgElement.getAttribute("+imgAttribs[i]+")");
+ }
+}
+
+function RSS2Channel(rssxml) {
+ //required
+ this.title;
+ this.link;
+ this.description;
+
+ //array of RSS2Item objects
+ this.items = new Array();
+
+ //optional vars
+ this.language;
+ this.copyright;
+ this.managingEditor;
+ this.webMaster;
+ this.pubDate;
+ this.lastBuildDate;
+ this.generator;
+ this.docs;
+ this.ttl;
+ this.rating;
+
+ //optional objects
+ this.category;
+ this.image;
+
+ var chanElement = rssxml.getElementsByTagName("channel")[0];
+ var itemElements = rssxml.getElementsByTagName("item");
+
+ for (var i=0; i<itemElements.length; i++) {
+ Item = new RSS2Item(itemElements[i]);
+ this.items.push(Item);
+ //chanElement.removeChild(itemElements[i]);
+ }
+
+ var properties = new Array("title", "link", "description", "language", "copyright", "managingEditor", "webMaster", "pubDate", "lastBuildDate", "generator", "docs", "ttl", "rating");
+ var tmpElement = null;
+ for (var i=0; i<properties.length; i++) {
+ tmpElement = chanElement.getElementsByTagName(properties[i])[0];
+ if ((tmpElement!= null) && (tmpElement.firstChild))
+ eval("this."+properties[i]+"=tmpElement.firstChild.nodeValue");
+ }
+
+ this.category = new RSS2Category(chanElement.getElementsByTagName("category")[0]);
+ this.image = new RSS2Image(chanElement.getElementsByTagName("image")[0]);
+}
+
+
+// loader and display method for rss
+// this needs ajax.js and a method showRSS(RSS) to display a rss file
+var xhr;
+
+function getRSS(url){
+ xhr = createRequestObject();
+ xhr.open("GET",url,true);
+ xhr.setRequestHeader("Cache-Control", "no-cache");
+ xhr.setRequestHeader("Pragma", "no-cache");
+ xhr.onreadystatechange = processRSS;
+ xhr.send(null);
+}
+
+function processRSS() {
+ if (xhr.readyState == 4) {
+ if (xhr.status == 200) {
+ if (xhr.responseText != null) {
+ RSS = new RSS2Channel(xhr.responseXML);
+ showRSS(RSS);
+ } else {
+ alert("rss file not found.");
+ return false;
+ }
+ }
+ else
+ alert("Error code " + xhr.status + " received: " + xhr.statusText);
+ }
+}
+
diff --git a/htroot/rssTerminal.html b/htroot/rssTerminal.html
new file mode 100755
index 000000000..f3b1ac225
--- /dev/null
+++ b/htroot/rssTerminal.html
@@ -0,0 +1,151 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+<title>rss terminal</title>
+<style type="text/css">
+
+div#container {
+ padding:6px;
+ background:#fff;
+ border:1px solid #000;
+ width: 600px;
+ height: 360px;
+ margin:0 auto;
+ text-align:left;
+}
+
+div#container p {
+ margin:0px 0;
+}
+
+div#scrollObject {
+ position: absolute;
+ overflow: hidden;
+ width: 600px;
+ height: 360px;
+}
+
+div#content {
+ position:absolute;
+ font:9px 'Lucida Console', 'Courier New', monospace;
+ top:0;
+ left:0;
+}
+</style>
+
+<script type="text/javascript" src="/js/ajax.js"></script>
+<script type="text/javascript" src="/js/rss2.js"></script>
+<script type="text/javascript">
+
+var lines = new Array();
+var maxlines = 360 / 9;
+var maxwidth = 600 / 5;
+var maxtime = 30000; // time that should be wasted until everything is scrolled
+var minwait = 50; // if this is too short, the CPU will eat all performance
+var maxwait = 500;
+var scroller = null;
+var idleping = null;
+var lastwait = 1000;
+var tab = "&nbsp;&nbsp;";
+
+function fillLines() {
+ for (var i = 0; i < maxlines; i++) {
+ addLine("");
+ }
+}
+
+function addLine(line) {
+ while (line.length > maxwidth) {
+ lines.push(line.substring(0, maxwidth));
+ line = tab + line.substring(maxwidth);
+ }
+ lines.push(line);
+ if (lines.length > maxlines) {
+ if (scroller != null) {
+ window.clearInterval(scroller);
+ scroller = null;
+ }
+ scroller=window.setInterval("scroll()", newwait());
+ }
+ show();
+}
+
+function show() {
+ var doc = document.getElementById("content");
+ doc.innerHTML = "";
+ for (var i = 0; i < maxlines; i++) {
+ doc.innerHTML += lines[i] + "<br />";
+ }
+}
+
+function newwait() {
+ if (lines.length > maxlines) {
+ var time = maxtime / (lines.length - maxlines);
+ if (time < minwait) time = minwait;
+ if (time > maxwait) time = maxwait;
+ } else {
+ time = maxwait;
+ }
+ if (time < lastwait) time = (time + maxlines * lastwait) / (maxlines + 1);
+ lastwait = time;
+ return time;
+}
+
+function scroll() {
+ if (scroller != null) {
+ window.clearInterval(scroller);
+ scroller = null;
+ }
+ if (lines.length > maxlines) {
+ var factor = (lines.length - maxlines) / maxlines / 10;
+ if (factor < 0) factor = 1;
+ if (factor > 3) factor = 3;
+ for (var i = 0; i < factor; i++) {
+ lines.shift();
+ }
+ show();
+ scroller=window.setInterval("scroll()", newwait());
+ }
+}
+
+function showRSS(RSS) {
+ //populate the items
+ for (var i=0; i<RSS.items.length; i++) {
+ if (RSS.items[i].title != null) addLine(RSS.items[i].title);
+ if (RSS.items[i].link != null) addLine(tab + RSS.items[i].link);
+ if (RSS.items[i].description != null) addLine(tab + RSS.items[i].description);
+ }
+ return true;
+}
+
+function idlepingInit() {
+ idleping = window.setInterval("idlepingExec()", 10000);
+}
+
+function idlepingExec() {
+ if (lines.length <= maxlines) {
+ // feed in some empty lines to make the list appear alive
+ addLine("");
+ }
+}
+
+</script>
+
+</head>
+ <body>
+ <div id="container">
+ <div id="scrollObject">
+ <div id="content"></div>
+ </div>
+ </div>
+ </body>
+
+<script type="text/javascript">
+fillLines();
+idlepingInit();
+getRSS("http://localhost:8080/yacysearch.rss?search=java&count=100");
+//getRSS("http://news.google.com/news?output=rss");
+</script>
+
+</html>
generated by cgit v1.2.3 (git 2.46.0) at 2026-08-08 10:29:47 +0000