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initial java interface commit: IT DOES NOT WORK

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Daniel Stenberg 2001-04-10 15:29:32 +00:00
parent d9f989c8c8
commit d712a4e800
5 changed files with 360 additions and 0 deletions
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134
java/CurlGlue.java Normal file
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/**
* 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");
}
}

9
java/CurlWrite.java Normal file
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public interface CurlWrite
{
/**
* handleString gets called by libcurl on each chunk of data
* we receive from the remote server
*/
public int handleString(byte s[]);
}

33
java/Makefile Normal file
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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

157
java/javacurl.c Normal file
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#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);
}

27
java/test.java Normal file
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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();
}
}