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sftp 下载实现

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使用零拷贝技术优化合并分块的功能
This commit is contained in:
laoyuyu
2020-01-15 20:28:10 +08:00
parent 6f53235807
commit 50b265f22a
37 changed files with 934 additions and 257 deletions
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41
SFtpComponent/src/main/java/com/arialyy/aria/sftp/AbsSFtpInfoTask.java
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@@ -15,21 +15,17 @@
*/
package com.arialyy.aria.sftp;
import android.text.TextUtils;
import com.arialyy.aria.core.FtpUrlEntity;
import com.arialyy.aria.core.IdEntity;
import com.arialyy.aria.core.loader.IInfoTask;
import com.arialyy.aria.core.loader.ILoaderVisitor;
import com.arialyy.aria.core.wrapper.AbsTaskWrapper;
import com.arialyy.aria.exception.BaseException;
import com.arialyy.aria.ftp.FtpTaskOption;
import com.arialyy.aria.util.CommonUtil;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.JSchException;
import com.jcraft.jsch.Session;
import com.jcraft.jsch.SftpException;
import java.io.UnsupportedEncodingException;
import java.util.Properties;
/**
* 进行登录，获取session，获取文件信息
@@ -51,10 +47,10 @@ public abstract class AbsSFtpInfoTask<WP extends AbsTaskWrapper> implements IInf
@Override public void run() {
try {
FtpUrlEntity entity = option.getUrlEntity();
String key = CommonUtil.getStrMd5(entity.hostName + entity.port + entity.user);
String key = CommonUtil.getStrMd5(entity.hostName + entity.port + entity.user + 0);
Session session = SFtpSessionManager.getInstance().getSession(key);
if (session == null) {
session = login(entity);
session = SFtpUtil.getInstance().getSession(entity, 0);
}
getFileInfo(session);
} catch (JSchException e) {
@@ -69,39 +65,6 @@ public abstract class AbsSFtpInfoTask<WP extends AbsTaskWrapper> implements IInf
}
}
private Session login(FtpUrlEntity entity) throws JSchException, UnsupportedEncodingException {
JSch jSch = new JSch();
IdEntity idEntity = entity.idEntity;
if (idEntity.prvKey != null) {
if (idEntity.pubKey == null) {
jSch.addIdentity(idEntity.prvKey,
entity.password == null ? null : entity.password.getBytes("UTF-8"));
} else {
jSch.addIdentity(idEntity.prvKey, idEntity.pubKey,
entity.password == null ? null : entity.password.getBytes("UTF-8"));
}
}
Session session;
if (TextUtils.isEmpty(entity.user)) {
session = jSch.getSession(entity.url, entity.hostName, Integer.parseInt(entity.port));
} else {
session = jSch.getSession(entity.hostName);
}
if (!TextUtils.isEmpty(entity.password)) {
session.setPassword(entity.password);
}
Properties config = new Properties();
config.put("StrictHostKeyChecking", "no");
session.setConfig(config);// 为Session对象设置properties
session.setTimeout(3000);// 设置超时
session.setIdentityRepository(jSch.getIdentityRepository());
session.connect();
return session;
}
protected FtpTaskOption getOption() {
return option;
}