3 files changed, 207 insertions, 0 deletions
diff --git a/src/main/java/ru/sape/Sape.java b/src/main/java/ru/sape/Sape.java
new file mode 100644
index 00000000..38577c45
--- /dev/null
+++ b/src/main/java/ru/sape/Sape.java
@@ -0,0 +1,23 @@
+/*
+ * http://code.google.com/p/javasape/
+ */
+package ru.sape;
+
+public class Sape {
+
+    private final String sapeUser;
+    private final SapeConnection sapePageLinkConnection;
+
+    public Sape(String sapeUser, String host, int socketTimeout, int cacheLifeTime) {
+        this.sapeUser = sapeUser;
+
+        this.sapePageLinkConnection = new SapeConnection(
+                "/code.php?user=" + sapeUser + "&host=" + host,
+                "SAPE_Client PHP", socketTimeout, cacheLifeTime);
+    }
+    public boolean debug = false;
+
+    public SapePageLinks getPageLinks(String requestUri, String cookie) {
+        return new SapePageLinks(sapePageLinkConnection, sapeUser, requestUri, cookie, debug);
+    }
+}
diff --git a/src/main/java/ru/sape/SapeConnection.java b/src/main/java/ru/sape/SapeConnection.java
new file mode 100644
index 00000000..a15658fa
--- /dev/null
+++ b/src/main/java/ru/sape/SapeConnection.java
@@ -0,0 +1,108 @@
+package ru.sape;
+
+import com.github.ooxi.phparser.SerializedPhpParser;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.Reader;
+import java.io.StringWriter;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.util.*;
+
+public class SapeConnection {
+    private static final Logger logger = LoggerFactory.getLogger(SapeConnection.class);
+    private final String version = "1.0.3";
+    private final List<String> serverList = Arrays.asList("dispenser-01.sape.ru", "dispenser-02.sape.ru");
+    private final String dispenserPath;
+    private final String userAgent;
+    private final int socketTimeout;
+    private final int cacheLifeTime;
+
+    public SapeConnection(String dispenserPath, String userAgent, int socketTimeout, int cacheLifeTime) {
+        this.dispenserPath = dispenserPath;
+        this.userAgent = userAgent;
+        this.socketTimeout = socketTimeout;
+        this.cacheLifeTime = cacheLifeTime;
+    }
+
+    protected String fetchRemoteFile(String host, String path) throws IOException {
+        Reader r = null;
+
+        try {
+            HttpURLConnection connection = (HttpURLConnection) ((new URL(("http://" + host + path)).openConnection()));
+
+            if (socketTimeout > 0) {
+                connection.setConnectTimeout(socketTimeout);
+                connection.setReadTimeout(socketTimeout);
+            }
+
+            connection.addRequestProperty("User-Agent", userAgent + ' ' + version);
+
+            connection.setDoOutput(true);
+            connection.setDoInput(true);
+            connection.setUseCaches(false);
+            connection.setRequestMethod("GET");
+            connection.connect();
+
+            r = new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8"));
+
+            StringWriter sw = new StringWriter();
+
+            int b;
+
+            while ((b = r.read()) != -1) {
+                sw.write(b);
+            }
+
+            return sw.toString();
+        } finally {
+            if (r != null) {
+                r.close();
+            }
+        }
+    }
+    Map<String, Object> cached;
+    long cacheUpdated;
+
+    @SuppressWarnings("unchecked")
+    public Map<String, Object> getData() {
+        if (cacheLifeTime <= (System.currentTimeMillis() - cacheUpdated) / 1000) {
+            for (String server : serverList) {
+                String data;
+
+                try {
+                    data = fetchRemoteFile(server, dispenserPath + "&charset=UTF-8");
+                } catch (IOException e1) {
+                    continue;
+                }
+
+                if (data.startsWith("FATAL ERROR:")) {
+                    logger.error("Sape responded with error: {}", data);
+
+                    continue;
+                }
+
+                try {
+                    cached = (Map<String, Object>) new SerializedPhpParser(data).parse();
+                } catch (Exception e) {
+                    logger.error("Can't parse Sape data", e);
+                    continue;
+                }
+
+                cacheUpdated = System.currentTimeMillis();
+
+                return cached;
+            }
+
+            logger.error("Unable to fetch Sape data");
+
+            return Collections.emptyMap();
+        }
+
+        return cached;
+    }
+}
diff --git a/src/main/java/ru/sape/SapePageLinks.java b/src/main/java/ru/sape/SapePageLinks.java
new file mode 100644
index 00000000..e89b4e71
--- /dev/null
+++ b/src/main/java/ru/sape/SapePageLinks.java
@@ -0,0 +1,76 @@
+package ru.sape;
+
+import java.util.*;
+
+public class SapePageLinks {
+
+    private boolean showCode;
+
+    public SapePageLinks(SapeConnection sapeConnection, String sapeUser, String requestUri, String sapeCookie) {
+        this(sapeConnection, sapeUser, requestUri, sapeCookie, false);
+    }
+
+    @SuppressWarnings("unchecked")
+    public SapePageLinks(SapeConnection sapeConnection, String sapeUser, String requestUri, String sapeCookie, boolean showCode) {
+        if (sapeUser.equals(sapeCookie)) {
+            showCode = true;
+        }
+
+        Map<String, Object> data = sapeConnection.getData();
+
+        if (data.containsKey("__sape_delimiter__")) {
+            linkDelimiter = (String) data.get("__sape_delimiter__");
+        }
+
+        if (data.containsKey(requestUri)) {
+            pageLinks = new ArrayList<>(((Map<Object, String>) data.get(requestUri)).values());
+        }
+
+        if (data.containsKey("__sape_new_url__")) {
+            if (showCode) {
+                Object newUrl = data.get("__sape_new_url__");
+
+                if (newUrl instanceof Map) {
+                    pageLinks = new ArrayList<>(((Map<Object, String>) newUrl).values());
+                } else {
+                    pageLinks = new ArrayList<>(Collections.singletonList((String) newUrl));
+                }
+            }
+        }
+
+        this.showCode = showCode;
+    }
+    private String linkDelimiter = ".";
+    private List<String> pageLinks = new ArrayList<>();
+
+    public String render() {
+        return render(-1);
+    }
+
+    public String render(int count) {
+        StringBuilder s = new StringBuilder();
+
+        if (count < 0) {
+            count = pageLinks.size();
+        }
+
+        for (Iterator<String> i = pageLinks.iterator(); i.hasNext() && count > 0; count--) {
+            if (s.length() > 0) {
+                s.append(linkDelimiter);
+            }
+
+            String l = i.next();
+
+            s.append(l);
+
+            i.remove();
+        }
+
+        if (showCode) {
+            s.insert(0, "<sape_noindex>");
+            s.append("</sape_noindex>");
+        }
+
+        return s.toString();
+    }
+}