解决kkfileview 使用https预览问题记录

场景：项目使用了开源的kkfileview进行文件在线预览，部署方式使用的是docker，使用IP进行访问，但是http协议直接访问有漏洞告警，现在需要调整为https，且仍然需要使用IP访问。

kkfileview官网kkFileView - 在线文件预览
问题：使用自签证书将web中间件访问方式调整为https，代理kkfile容器8012端口，后预览图片正常，预览其他类型文件提示如下错误

错误信息： 

下载失败:org.springframework.web.client.ResourceAccessException: I/O error on GET request for "https://192.168.1.1:80/api/admin/image/local/c639a28c6e4b4278b8c93ff94352957a.txt": sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target; nested exception is javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

解决方法：

1.重新自包含签证书SAN(Subject Alternative Name)的证书

openssl genrsa -out server.key 2048

cat >server.cnf<<EOF
[req]  
default_bits = 2048  
prompt = no  
default_md = sha256  
distinguished_name = dn  
req_extensions = req_ext  

[dn]  
C = CN  
ST = Province  
L = City  
O = Organization  
OU = Organizational Unit  
CN = test  

[req_ext]  
subjectAltName = @alt_names  

[alt_names]  
# 如果需要，可以添加更多的DNS或IP地址 
#DNS.1 = baidu.com   
IP.1 = 192.168.1.1
IP.2 = 192.168.1.2
EOF

openssl req -new -sha256 -key server.key -config server.cnf -out server.csr

openssl x509 -req -days 3650 -in server.csr -signkey server.key -extfile server.cnf -extensions req_ext -out server.crt

2.修改Dockerfile把证书加入到kkfile的jdk环境

cat >Dockerfile<<EOF
FROM keking/kkfileview:v4.4.0
MAINTAINER hello
ADD server.crt /opt/
RUN keytool -import -alias myServer -file /opt/server.crt -keystore $JAVA_HOME/jre/lib/security/cacerts -storepass changeit -noprompt
ENTRYPOINT ["java","-Dfile.encoding=UTF-8","-Dspring.config.location=/opt/kkFileView-4.4.0-beta/config/application.properties","-jar","/opt/kkFileView-4.4.0-beta/bin/kkFileView-4.4.0-beta.jar"]
EOF

docker build -t keking/kkfileview:v4.4.1 .

3.使用新镜像重新启动kkfileview

docker stop kkfile && docker rm kkfile
docker run -d -p 8012:8012 -e KK_BASE_URL="https://192.168.1.1" --name kkfile keking/kkfileview:v4.4.1

4.替换web中间件的自签证书，重新加载web服务,验证预览

原文地址：https://blog.csdn.net/checkjiji/article/details/140640351

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