initial java interface commit: IT DOES NOT WORK

diff --git a/java/CurlGlue.java b/java/CurlGlue.java
new file mode 100644 (file)
index 0000000..fe8f186
--- /dev/null
+++ b/java/CurlGlue.java
@@ -0,0 +1,134 @@
+/**
+ * The curl class is a JNI wrapper for libcurl. Please bear with me, I'm no
+ * true java dude (yet). Improve what you think is bad and send me the
+ * updates!
+ * daniel@haxx.se
+ *
+ * This is meant as a raw, crude and low-level interface to libcurl. If you
+ * want fancy stuff, build upon this.
+ */
+
+public class CurlGlue
+{
+  // start of imported generated list, make a new list with
+  // define2java.pl on demand
+  public static final int CURLOPT_NOTHING  = 0;
+  public static final int CURLOPT_FILE  = 10001;
+  public static final int CURLOPT_URL  = 10002;
+  public static final int CURLOPT_PORT  = 3;
+  public static final int CURLOPT_PROXY  = 10004;
+  public static final int CURLOPT_USERPWD  = 10005;
+  public static final int CURLOPT_PROXYUSERPWD  = 10006;
+  public static final int CURLOPT_RANGE  = 10007;
+  public static final int CURLOPT_INFILE  = 10009;
+  public static final int CURLOPT_ERRORBUFFER  = 10010;
+  public static final int CURLOPT_WRITEFUNCTION  = 20011;
+  public static final int CURLOPT_READFUNCTION  = 20012;
+  public static final int CURLOPT_TIMEOUT  = 13;
+  public static final int CURLOPT_INFILESIZE  = 14;
+  public static final int CURLOPT_POSTFIELDS  = 10015;
+  public static final int CURLOPT_REFERER  = 10016;
+  public static final int CURLOPT_FTPPORT  = 10017;
+  public static final int CURLOPT_USERAGENT  = 10018;
+  public static final int CURLOPT_LOW_SPEED_LIMIT  = 19;
+  public static final int CURLOPT_LOW_SPEED_TIME  = 20;
+  public static final int CURLOPT_RESUME_FROM  = 21;
+  public static final int CURLOPT_COOKIE  = 10022;
+  public static final int CURLOPT_HTTPHEADER  = 10023;
+  public static final int CURLOPT_HTTPPOST  = 10024;
+  public static final int CURLOPT_SSLCERT  = 10025;
+  public static final int CURLOPT_SSLCERTPASSWD  = 10026;
+  public static final int CURLOPT_CRLF  = 27;
+  public static final int CURLOPT_QUOTE  = 10028;
+  public static final int CURLOPT_WRITEHEADER  = 10029;
+  public static final int CURLOPT_COOKIEFILE  = 10031;
+  public static final int CURLOPT_SSLVERSION  = 32;
+  public static final int CURLOPT_TIMECONDITION  = 33;
+  public static final int CURLOPT_TIMEVALUE  = 34;
+  public static final int CURLOPT_HTTPREQUEST  = 10035;
+  public static final int CURLOPT_CUSTOMREQUEST  = 10036;
+  public static final int CURLOPT_STDERR  = 10037;
+  public static final int CURLOPT_POSTQUOTE  = 10039;
+  public static final int CURLOPT_WRITEINFO  = 10040;
+  public static final int CURLOPT_VERBOSE  = 41;
+  public static final int CURLOPT_HEADER  = 42;
+  public static final int CURLOPT_NOPROGRESS  = 43;
+  public static final int CURLOPT_NOBODY  = 44;
+  public static final int CURLOPT_FAILONERROR  = 45;
+  public static final int CURLOPT_UPLOAD  = 46;
+  public static final int CURLOPT_POST  = 47;
+  public static final int CURLOPT_FTPLISTONLY  = 48;
+  public static final int CURLOPT_FTPAPPEND  = 50;
+  public static final int CURLOPT_NETRC  = 51;
+  public static final int CURLOPT_FOLLOWLOCATION  = 52;
+  public static final int CURLOPT_FTPASCII  = 53;
+  public static final int CURLOPT_TRANSFERTEXT  = 53;
+  public static final int CURLOPT_PUT  = 54;
+  public static final int CURLOPT_MUTE  = 55;
+  public static final int CURLOPT_PROGRESSFUNCTION  = 20056;
+  public static final int CURLOPT_PROGRESSDATA  = 10057;
+  public static final int CURLOPT_AUTOREFERER  = 58;
+  public static final int CURLOPT_PROXYPORT  = 59;
+  public static final int CURLOPT_POSTFIELDSIZE  = 60;
+  public static final int CURLOPT_HTTPPROXYTUNNEL  = 61;
+  public static final int CURLOPT_INTERFACE  = 10062;
+  public static final int CURLOPT_KRB4LEVEL  = 10063;
+  public static final int CURLOPT_SSL_VERIFYPEER  = 64;
+  public static final int CURLOPT_CAINFO  = 10065;
+  public static final int CURLOPT_PASSWDFUNCTION  = 20066;
+  public static final int CURLOPT_PASSWDDATA  = 10067;
+  public static final int CURLOPT_MAXREDIRS  = 68;
+  public static final int CURLOPT_FILETIME  = 10069;
+  public static final int CURLOPT_TELNETOPTIONS  = 10070;
+  public static final int CURLOPT_MAXCONNECTS  = 71;
+  public static final int CURLOPT_CLOSEPOLICY  = 72;
+  public static final int CURLOPT_CLOSEFUNCTION  = 20073;
+  public static final int CURLOPT_FRESH_CONNECT  = 74;
+  public static final int CURLOPT_FORBID_REUSE  = 75;
+  public static final int CURLOPT_RANDOM_FILE  = 10076;
+  public static final int CURLOPT_EGDSOCKET  = 10077;
+  public static final int CURLOPT_CONNECTTIMEOUT  = 78;
+  public static final int CURLOPT_HEADERFUNCTION  = 20079;
+  // end of generated list
+
+  public CurlGlue() {
+    javacurl_handle = jni_init();
+  }
+
+  public void finalize() {
+    jni_cleanup(javacurl_handle);
+  }
+
+  private int javacurl_handle;
+
+  /* constructor and destructor for the libcurl handle */
+  private native int jni_init();
+  private native void jni_cleanup(int javacurl_handle);
+  private native synchronized int jni_perform(int javacurl_handle);
+  
+    // Instead of varargs, we have different functions for each
+  // kind of type setopt() can take
+  private native int jni_setopt(int libcurl, int option, String value);
+  private native int jni_setopt(int libcurl, int option, int value);
+  private native int jni_setopt(int libcurl, int option, CurlWrite value);
+
+  public native int getinfo();
+  
+  public int perform() {
+    return jni_perform(javacurl_handle);
+  }
+  public int setopt(int option, int value) {
+    return jni_setopt(javacurl_handle, option, value);
+  }
+  public int setopt(int option, String value) {
+    return jni_setopt(javacurl_handle, option, value);
+  }
+  public int setopt(int option, CurlWrite value) {
+    return jni_setopt(javacurl_handle, option, value);
+  }
+
+  static {
+    System.loadLibrary("javacurl");
+  }
+  
+}

diff --git a/java/CurlWrite.java b/java/CurlWrite.java
new file mode 100644 (file)
index 0000000..37c8484
--- /dev/null
+++ b/java/CurlWrite.java
@@ -0,0 +1,9 @@
+public interface CurlWrite
+{
+  /**
+   * handleString gets called by libcurl on each chunk of data
+   * we receive from the remote server
+   */
+  public int handleString(byte s[]);
+}
+

diff --git a/java/Makefile b/java/Makefile
new file mode 100644 (file)
index 0000000..e05ea60
--- /dev/null
+++ b/java/Makefile
@@ -0,0 +1,33 @@
+
+TARGET = libjavacurl.so
+
+OBJS = javacurl.o
+
+CC = gcc
+CFLAGS = -c
+CPPFLAGS = -I/usr/j2se/include -I/usr/local/include -I/usr/j2se/include/solaris
+LDFLAGS = -lcurl -ldl -L/usr/local/ssl/lib -lssl -lcrypto
+
+all: CurlGlue.h CurlGlue.class javacurl.o $(TARGET) test.class
+
+test:
+       java test
+
+javacurl.o: javacurl.c CurlGlue.h
+       $(CC) $(CPPFLAGS) $(CFLAGS) $<
+
+CurlGlue.h: CurlGlue.java CurlGlue.class
+       javah CurlGlue
+       touch CurlGlue.h
+
+test.class: CurlGlue.class javacurl.o
+       javac test.java
+
+CurlGlue.class: CurlGlue.java
+       javac $<
+
+$(TARGET): $(OBJS)
+       $(CC) -G -o $(TARGET) $(LDFLAGS) $(OBJS)
+
+clean:
+       rm -f javacurl.o CurlGlue.h CurlGlue.class

diff --git a/java/javacurl.c b/java/javacurl.c
new file mode 100644 (file)
index 0000000..2b93bc6
--- /dev/null
+++ b/java/javacurl.c
@@ -0,0 +1,157 @@
+
+#include <curl/curl.h> /* libcurl header */
+#include "CurlGlue.h"  /* the JNI-generated glue header file */
+
+/*
+ * This is a private struct allocated for every 'CurlGlue' object.
+ */
+struct javacurl {
+  void *libcurl;
+  void *whatever;
+  struct writecallback {
+    jmethodID mid;
+    JNIEnv *java;
+    jclass cls;
+    jobject obj;
+  } write;
+};
+
+JNIEXPORT jint JNICALL Java_CurlGlue_jni_1init(JNIEnv *java,
+                                               jobject myself)
+{
+  void *libhandle;
+  struct javacurl *jcurl=NULL;
+
+  libhandle = curl_easy_init();
+
+  if(libhandle) {
+    jcurl=(struct javacurl *)malloc(sizeof(struct javacurl));
+    if(jcurl) {
+      memset(jcurl, 0, sizeof(struct javacurl));
+      jcurl->libcurl = libhandle;
+
+    }
+    else {
+      curl_easy_cleanup(libhandle);
+      return (jint)0;
+    }
+  }
+
+  return (jint) jcurl; /* nasty typecast */
+}
+
+JNIEXPORT void JNICALL Java_CurlGlue_jni_1cleanup(JNIEnv *java,
+                                                  jobject myself,
+                                                  jint jcurl)
+{
+  void *handle=(void *)((struct javacurl*)jcurl)->libcurl;
+
+  curl_easy_cleanup(handle); /* cleanup libcurl stuff */
+
+  free((void *)jcurl); /* free the struct too */
+}
+
+/*
+ * setopt() int + string
+ */
+JNIEXPORT jint JNICALL Java_CurlGlue_jni_1setopt__IILjava_lang_String_2
+  (JNIEnv *java, jobject myself, jint jcurl, jint option, jstring value)
+{
+  /* get the actual string C-style */
+  const char *str = (*java)->GetStringUTFChars(java, value, 0);
+
+  void *handle = (void *)((struct javacurl*)jcurl)->libcurl;
+
+  puts("setopt int + string");
+  
+  return (jint)curl_easy_setopt(handle, (CURLoption)option, str);
+
+}
+
+/*
+ * setopt() int + int 
+ */
+JNIEXPORT jint JNICALL Java_CurlGlue_jni_1setopt__III
+  (JNIEnv *java, jobject myself, jint jcurl, jint option, jint value)
+{
+  void *handle = (void *)((struct javacurl*)jcurl)->libcurl;
+
+  puts("setopt int + int");
+
+  return (jint)curl_easy_setopt(handle, (CURLoption)option, value);
+}
+
+static int javacurl_write_callback(void *ptr,
+                                   size_t size,
+                                   size_t nmemb,
+                                   FILE  *stream)
+{
+  struct javacurl *curl = (struct javacurl *)stream;
+  size_t realsize = size * nmemb;
+  JNIEnv *java = curl->write.java;
+  jbyteArray jb;
+  int ret;
+
+  jb=(*java)->NewByteArray(java, realsize);
+  (*java)->SetByteArrayRegion(java, jb, 0, 
+                              realsize, (jbyte *)ptr);
+
+  ret = (*java)->CallIntMethod(java,
+                               curl->write.obj,
+                               curl->write.mid,
+                               jb);
+
+  return realsize;
+}
+
+/*
+ * setopt() int + object
+ */
+
+JNIEXPORT jint JNICALL Java_CurlGlue_jni_1setopt__IILCurlWrite_2
+  (JNIEnv *java, jobject myself, jint jcurl, jint option, jobject value)
+{
+  jclass cls = (*java)->GetObjectClass(java, value);
+  jmethodID mid;
+  struct javacurl *curl = (struct javacurl *)jcurl;
+
+  printf("setopt int + object, option = %d cls= %p\n", option, cls);
+
+  switch(option) {
+  case CURLOPT_WRITEFUNCTION:
+    /* this is the write callback */
+    mid = (*java)->GetMethodID(java, cls, "handleString",
+                               "([B)I");
+    if(!mid) {
+      /* no callback method found */
+      puts("no callback method found");
+      return 0;
+    }
+    curl->write.mid = mid;
+    curl->write.java = java;
+    curl->write.cls = cls;
+    curl->write.obj = value;
+
+    puts("setopt write callback and write file pointer");
+
+    curl_easy_setopt(curl->libcurl, CURLOPT_WRITEFUNCTION,
+                     javacurl_write_callback);
+    curl_easy_setopt(curl->libcurl, CURLOPT_FILE,
+                     curl);
+    break;
+  }
+  return 0;
+}
+
+JNIEXPORT jint JNICALL Java_CurlGlue_getinfo
+  (JNIEnv *java, jobject value)
+{
+    return 0;
+}
+
+JNIEXPORT jint JNICALL Java_CurlGlue_jni_1perform
+  (JNIEnv *java, jobject myself, jint jcurl)
+{
+  void *handle=(void *)((struct javacurl*)jcurl)->libcurl;
+  return (jint)curl_easy_perform(handle);
+}

diff --git a/java/test.java b/java/test.java
new file mode 100644 (file)
index 0000000..33da880
--- /dev/null
+++ b/java/test.java
@@ -0,0 +1,27 @@
+import CurlGlue;
+import CurlWrite;
+
+class test implements CurlWrite {
+    public int handleString(byte s[])
+    {
+        /* output everything */
+        System.out.println("IIIIIIIIIII -------------- OOOOOOOOOOOOOOOOOOO");
+        try {
+          System.out.write(s);
+        }
+        catch (java.io.IOException moo) {
+          // nothing
+        }
+        return 0;
+    }
+
+    public static void main(String[] args)
+    {
+        CurlGlue cg = new CurlGlue();
+        test cw = new test();
+        cg.setopt(CurlGlue.CURLOPT_URL, "http://www.contactor.se/");
+        cg.setopt(CurlGlue.CURLOPT_WRITEFUNCTION, cw);
+        cg.perform();
+    }
+}
+