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chore: 🤖 [frontend-gray]优化关于处理index page 处理逻辑 (#1345)

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Co-authored-by: Kent Dong <ch3cho@qq.com>
This commit is contained in:
mamba
2024-09-26 09:16:00 +08:00
committed by GitHub
parent 8293042c25
commit af4e34b7ed
3 changed files with 45 additions and 44 deletions
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22
plugins/wasm-go/extensions/frontend-gray/README.md
View File

@@ -130,7 +130,7 @@ grayDeployments:
- name: beta-user
version: gray
enabled: true
weight: 80
weight: 80
```
总的灰度规则为100%，其中灰度版本的权重为`80%`，基线版本为`20%`。一旦用户命中了灰度规则，会根据IP固定这个用户的灰度版本（否则会在下次请求时随机选择一个灰度版本）。
@@ -229,16 +229,16 @@ grayDeployments:
- name: beta-user
version: gray
enabled: true
weight: 80
weight: 80
injection:
head:
- <script>console.log('Header')</script>
body:
first:
- <script>console.log('hello world before')</script>
- <script>console.log('hello world before1')</script>
last:
- <script>console.log('hello world after')</script>
- <script>console.log('hello world after2')</script>
head:
- <script>console.log('Header')</script>
body:
first:
- <script>console.log('hello world before')</script>
- <script>console.log('hello world before1')</script>
last:
- <script>console.log('hello world after')</script>
- <script>console.log('hello world after2')</script>
```
通过 `injection`往HTML首页注入代码，可以在`head`标签注入代码，也可以在`body`标签的`first`和`last`位置注入代码。

19
plugins/wasm-go/extensions/frontend-gray/envoy.yaml
View File

@@ -73,25 +73,24 @@ static_resources:
],
"rewrite": {
"host": "frontend-gray-cn-shanghai.oss-cn-shanghai-internal.aliyuncs.com",
"notFoundUri": "/mfe/app1/{version}/333.html",
"notFoundUri": "/cygtapi/{version}/333.html",
"indexRouting": {
"/app1": "/mfe/app1/{version}/index.html",
"/": "/mfe/app1/{version}/index.html"
"/app1": "/cygtapi/{version}/index.html",
"/": "/cygtapi/{version}/index.html"
},
"fileRouting": {
"/": "/mfe/app1/{version}",
"/app1": "/mfe/app1/{version}"
"/": "/cygtapi/{version}",
"/app1": "/cygtapi/{version}"
}
},
"baseDeployment": {
"version": "dev"
"version": "base"
},
"grayDeployments": [
{
"name": "beta-user",
"version": "0.0.1",
"enabled": true,
"weight": 50
"version": "gray",
"enabled": true
}
],
"injection": {
@@ -128,4 +127,4 @@ static_resources:
address:
socket_address:
address: frontend-gray-cn-shanghai.oss-cn-shanghai.aliyuncs.com
port_value: 80
port_value: 80

48
plugins/wasm-go/extensions/frontend-gray/main.go
View File

@@ -108,19 +108,26 @@ func onHttpResponseHeader(ctx wrapper.HttpContext, grayConfig config.GrayConfig,
if !util.IsGrayEnabled(grayConfig) {
return types.ActionContinue
}
status, err := proxywasm.GetHttpResponseHeader(":status")
contentType, _ := proxywasm.GetHttpResponseHeader("Content-Type")
isPageRequest, ok := ctx.GetContext(config.IsPageRequest).(bool)
if !ok {
isPageRequest = false // 默认值
}
// response 不处理非首页的请求
if !isPageRequest {
ctx.DontReadResponseBody()
return types.ActionContinue
}
status, err := proxywasm.GetHttpResponseHeader(":status")
if grayConfig.Rewrite != nil && grayConfig.Rewrite.Host != "" {
// 删除Content-Disposition，避免自动下载文件
proxywasm.RemoveHttpResponseHeader("Content-Disposition")
}
isPageRequest, ok := ctx.GetContext(config.IsPageRequest).(bool)
if !ok {
isPageRequest = false // 默认值
}
// 删除content-length，可能要修改Response返回值
proxywasm.RemoveHttpResponseHeader("Content-Length")
// 处理code为 200的情况
if err != nil || status != "200" {
if status == "404" {
if grayConfig.Rewrite.NotFound != "" && isPageRequest {
@@ -143,6 +150,7 @@ func onHttpResponseHeader(ctx wrapper.HttpContext, grayConfig config.GrayConfig,
ctx.BufferResponseBody()
return types.ActionContinue
} else {
// 直接返回400
ctx.DontReadResponseBody()
}
}
@@ -150,25 +158,19 @@ func onHttpResponseHeader(ctx wrapper.HttpContext, grayConfig config.GrayConfig,
return types.ActionContinue
}
// 删除content-length，可能要修改Response返回值
proxywasm.RemoveHttpResponseHeader("Content-Length")
// 不会进去Streaming 的Body处理
ctx.BufferResponseBody()
proxywasm.ReplaceHttpResponseHeader("Cache-Control", "no-cache, no-store, max-age=0, must-revalidate")
if strings.HasPrefix(contentType, "text/html") || isPageRequest {
// 不会进去Streaming 的Body处理
ctx.BufferResponseBody()
frontendVersion := ctx.GetContext(config.XPreHigressTag).(string)
xUniqueClient := ctx.GetContext(config.XUniqueClientId).(string)
proxywasm.ReplaceHttpResponseHeader("Cache-Control", "no-cache, no-store")
frontendVersion := ctx.GetContext(config.XPreHigressTag).(string)
xUniqueClient := ctx.GetContext(config.XUniqueClientId).(string)
// 设置前端的版本
proxywasm.AddHttpResponseHeader("Set-Cookie", fmt.Sprintf("%s=%s,%s; Max-Age=%s; Path=/;", config.XPreHigressTag, frontendVersion, xUniqueClient, grayConfig.UserStickyMaxAge))
// 设置后端的版本
if util.IsBackendGrayEnabled(grayConfig) {
backendVersion := ctx.GetContext(grayConfig.BackendGrayTag).(string)
proxywasm.AddHttpResponseHeader("Set-Cookie", fmt.Sprintf("%s=%s; Max-Age=%s; Path=/;", grayConfig.BackendGrayTag, backendVersion, grayConfig.UserStickyMaxAge))
}
// 设置前端的版本
proxywasm.AddHttpResponseHeader("Set-Cookie", fmt.Sprintf("%s=%s,%s; Max-Age=%s; Path=/;", config.XPreHigressTag, frontendVersion, xUniqueClient, grayConfig.UserStickyMaxAge))
// 设置后端的版本
if util.IsBackendGrayEnabled(grayConfig) {
backendVersion := ctx.GetContext(grayConfig.BackendGrayTag).(string)
proxywasm.AddHttpResponseHeader("Set-Cookie", fmt.Sprintf("%s=%s; Max-Age=%s; Path=/;", grayConfig.BackendGrayTag, backendVersion, grayConfig.UserStickyMaxAge))
}
return types.ActionContinue
}