Searching in browsers cache (Chrome, Firefox)

trunk/src/com/jpexs/browsers/cache/ChunkedInputStream.java

@@ -0,0 +1,80 @@
+package com.jpexs.browsers.cache;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+/**
+ *
+ * @author JPEXS
+ */
+public class ChunkedInputStream extends InputStream {
+
+    private InputStream is;
+    private int chunkPos = 0;
+    private int chunkLen = 0;
+    private boolean end = false;
+    private boolean first = true;
+
+    public ChunkedInputStream(InputStream is) {
+        this.is = is;
+    }
+
+    @Override
+    public int read() throws IOException {
+        if (end) {
+            return -1;
+        }
+        if (chunkPos >= chunkLen) {
+            if (!first) {
+                if (is.read() != '\r') {
+                    throw new IOException("Invalid chunk");
+                }
+                if (is.read() != '\n') {
+                    throw new IOException("Invalid chunk");
+                }
+            }
+            String lenStr = readLine();
+            try {
+                chunkLen = Integer.parseInt(lenStr);
+            } catch (NumberFormatException nfe) {
+                throw new IOException("Invalid chunk");
+            }
+            if (chunkLen == 0) {
+                is.read(); // \r
+                is.read(); // \n
+                end = true;
+                return -1;
+            }
+            chunkPos = 0;
+            first = false;
+        }
+
+        chunkPos++;
+        return is.read();
+    }
+
+    private String readLine() throws IOException {
+        int i;
+        boolean inr = false;
+        String ret = "";
+        while ((i = is.read()) > -1) {
+            if (inr) {
+                inr = false;
+                if (i == '\n') {
+                    break;
+                } else {
+                    ret += "\r";
+                }
+            }
+            if (i == '\r') {
+                inr = true;
+                continue;
+            }
+            ret += (char) i;
+        }
+        if (inr) {
+            ret += "\r";
+        }
+        return ret;
+    }
+}