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add ai cache plugin (#1010)
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澄潭
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19
plugins/wasm-go/extensions/ai-cache/.gitignore
vendored
Normal file
19
plugins/wasm-go/extensions/ai-cache/.gitignore
vendored
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@@ -0,0 +1,19 @@
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# File generated by hgctl. Modify as required.
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*
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!/.gitignore
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!*.go
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!go.sum
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!go.mod
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|
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!LICENSE
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!*.md
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!*.yaml
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!*.yml
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!*/
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/out
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/test
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34
plugins/wasm-go/extensions/ai-cache/README.md
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34
plugins/wasm-go/extensions/ai-cache/README.md
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## 简介
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**Note**
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> 需要数据面的proxy wasm版本大于等于0.2.100
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> 编译时，需要带上版本的tag，例如：`tinygo build -o main.wasm -scheduler=none -target=wasi -gc=custom -tags="custommalloc nottinygc_finalizer proxy_wasm_version_0_2_100" ./`
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LLM 结果缓存插件，默认配置方式可以直接用于 openai 协议的结果缓存，同时支持流式和非流式响应的缓存。
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## 配置说明
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| Name | Type | Requirement | Default | Description |
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| -------- | -------- | -------- | -------- | -------- |
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| cacheKeyFrom.requestBody | string | optional | "messages.@reverse.0.content" | 从请求 Body 中基于 [GJSON PATH](https://github.com/tidwall/gjson/blob/master/SYNTAX.md) 语法提取字符串 |
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| cacheValueFrom.responseBody | string | optional | "choices.0.message.content" | 从响应 Body 中基于 [GJSON PATH](https://github.com/tidwall/gjson/blob/master/SYNTAX.md) 语法提取字符串 |
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| cacheStreamValueFrom.responseBody | string | optional | "choices.0.delta.content" | 从流式响应 Body 中基于 [GJSON PATH](https://github.com/tidwall/gjson/blob/master/SYNTAX.md) 语法提取字符串 |
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| cacheKeyPrefix | string | optional | "higress-ai-cache:" | Redis缓存Key的前缀 |
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| cacheTTL | integer | optional | 0 | 缓存的过期时间，单位是秒，默认值为0，即永不过期 |
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| redis.serviceName | string | requried | - | redis 服务名称，带服务类型的完整 FQDN 名称，例如 my-redis.dns、redis.my-ns.svc.cluster.local |
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| redis.servicePort | integer | optional | 6379 | redis 服务端口 |
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| redis.timeout | integer | optional | 1000 | 请求 redis 的超时时间，单位为毫秒 |
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| redis.username | string | optional | - | 登陆 redis 的用户名 |
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| redis.password | string | optional | - | 登陆 redis 的密码 |
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| returnResponseTemplate | string | optional | `{"id":"from-cache","choices":[%s],"model":"gpt-4o","object":"chat.completion","usage":{"prompt_tokens":0,"completion_tokens":0,"total_tokens":0}}` | 返回 HTTP 响应的模版，用 %s 标记需要被 cache value 替换的部分 |
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| returnStreamResponseTemplate | string | optional | `data:{"id":"from-cache","choices":[{"index":0,"delta":{"role":"assistant","content":"%s"},"finish_reason":"stop"}],"model":"gpt-4o","object":"chat.completion","usage":{"prompt_tokens":0,"completion_tokens":0,"total_tokens":0}}\n\ndata:[DONE]\n\n` | 返回流式 HTTP 响应的模版，用 %s 标记需要被 cache value 替换的部分 |
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## 配置示例
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```yaml
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redis:
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serviceName: my-redis.dns
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timeout: 2000
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```
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23
plugins/wasm-go/extensions/ai-cache/go.mod
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23
plugins/wasm-go/extensions/ai-cache/go.mod
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@@ -0,0 +1,23 @@
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// File generated by hgctl. Modify as required.
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module github.com/alibaba/higress/plugins/wasm-go/extensions/ai-cache
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go 1.19
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replace github.com/alibaba/higress/plugins/wasm-go => ../..
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require (
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github.com/alibaba/higress/plugins/wasm-go v1.3.6-0.20240528060522-53bccf89f441
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github.com/higress-group/proxy-wasm-go-sdk v0.0.0-20240327114451-d6b7174a84fc
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github.com/tidwall/gjson v1.14.3
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github.com/tidwall/resp v0.1.1
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github.com/tidwall/sjson v1.2.5
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)
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require (
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github.com/google/uuid v1.3.0 // indirect
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github.com/higress-group/nottinygc v0.0.0-20231101025119-e93c4c2f8520 // indirect
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github.com/magefile/mage v1.14.0 // indirect
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github.com/tidwall/match v1.1.1 // indirect
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github.com/tidwall/pretty v1.2.0 // indirect
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)
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23
plugins/wasm-go/extensions/ai-cache/go.sum
Normal file
23
plugins/wasm-go/extensions/ai-cache/go.sum
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@@ -0,0 +1,23 @@
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github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
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github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
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github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
|
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github.com/higress-group/nottinygc v0.0.0-20231101025119-e93c4c2f8520 h1:IHDghbGQ2DTIXHBHxWfqCYQW1fKjyJ/I7W1pMyUDeEA=
|
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github.com/higress-group/nottinygc v0.0.0-20231101025119-e93c4c2f8520/go.mod h1:Nz8ORLaFiLWotg6GeKlJMhv8cci8mM43uEnLA5t8iew=
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github.com/higress-group/proxy-wasm-go-sdk v0.0.0-20240327114451-d6b7174a84fc h1:t2AT8zb6N/59Y78lyRWedVoVWHNRSCBh0oWCC+bluTQ=
|
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github.com/higress-group/proxy-wasm-go-sdk v0.0.0-20240327114451-d6b7174a84fc/go.mod h1:hNFjhrLUIq+kJ9bOcs8QtiplSQ61GZXtd2xHKx4BYRo=
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github.com/magefile/mage v1.14.0 h1:6QDX3g6z1YvJ4olPhT1wksUcSa/V0a1B+pJb73fBjyo=
|
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github.com/magefile/mage v1.14.0/go.mod h1:z5UZb/iS3GoOSn0JgWuiw7dxlurVYTu+/jHXqQg881A=
|
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github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
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github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
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github.com/tidwall/gjson v1.14.2/go.mod h1:/wbyibRr2FHMks5tjHJ5F8dMZh3AcwJEMf5vlfC0lxk=
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github.com/tidwall/gjson v1.14.3 h1:9jvXn7olKEHU1S9vwoMGliaT8jq1vJ7IH/n9zD9Dnlw=
|
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github.com/tidwall/gjson v1.14.3/go.mod h1:/wbyibRr2FHMks5tjHJ5F8dMZh3AcwJEMf5vlfC0lxk=
|
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github.com/tidwall/match v1.1.1 h1:+Ho715JplO36QYgwN9PGYNhgZvoUSc9X2c80KVTi+GA=
|
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github.com/tidwall/match v1.1.1/go.mod h1:eRSPERbgtNPcGhD8UCthc6PmLEQXEWd3PRB5JTxsfmM=
|
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github.com/tidwall/pretty v1.2.0 h1:RWIZEg2iJ8/g6fDDYzMpobmaoGh5OLl4AXtGUGPcqCs=
|
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github.com/tidwall/pretty v1.2.0/go.mod h1:ITEVvHYasfjBbM0u2Pg8T2nJnzm8xPwvNhhsoaGGjNU=
|
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github.com/tidwall/resp v0.1.1 h1:Ly20wkhqKTmDUPlyM1S7pWo5kk0tDu8OoC/vFArXmwE=
|
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github.com/tidwall/resp v0.1.1/go.mod h1:3/FrruOBAxPTPtundW0VXgmsQ4ZBA0Aw714lVYgwFa0=
|
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github.com/tidwall/sjson v1.2.5 h1:kLy8mja+1c9jlljvWTlSazM7cKDRfJuR/bOJhcY5NcY=
|
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github.com/tidwall/sjson v1.2.5/go.mod h1:Fvgq9kS/6ociJEDnK0Fk1cpYF4FIW6ZF7LAe+6jwd28=
|
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gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
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361
plugins/wasm-go/extensions/ai-cache/main.go
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361
plugins/wasm-go/extensions/ai-cache/main.go
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@@ -0,0 +1,361 @@
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// File generated by hgctl. Modify as required.
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// See: https://higress.io/zh-cn/docs/user/wasm-go#2-%E7%BC%96%E5%86%99-maingo-%E6%96%87%E4%BB%B6
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package main
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import (
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"errors"
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"fmt"
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"strings"
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"github.com/alibaba/higress/plugins/wasm-go/pkg/wrapper"
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"github.com/higress-group/proxy-wasm-go-sdk/proxywasm"
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"github.com/higress-group/proxy-wasm-go-sdk/proxywasm/types"
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"github.com/tidwall/gjson"
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"github.com/tidwall/resp"
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)
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const (
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CacheKeyContextKey = "cacheKey"
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CacheContentContextKey = "cacheContent"
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PartialMessageContextKey = "partialMessage"
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ToolCallsContextKey = "toolCalls"
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StreamContextKey = "stream"
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DefaultCacheKeyPrefix = "higress-ai-cache:"
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)
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func main() {
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wrapper.SetCtx(
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"ai-cache",
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wrapper.ParseConfigBy(parseConfig),
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wrapper.ProcessRequestHeadersBy(onHttpRequestHeaders),
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wrapper.ProcessRequestBodyBy(onHttpRequestBody),
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wrapper.ProcessStreamingResponseBodyBy(onHttpResponseBody),
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)
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}
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// @Name ai-cache
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// @Category protocol
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// @Phase AUTHN
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// @Priority 10
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// @Title zh-CN AI Cache
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// @Description zh-CN 大模型结果缓存
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// @IconUrl
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// @Version 0.1.0
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//
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// @Contact.name johnlanni
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// @Contact.url
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// @Contact.email
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//
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// @Example
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// redis:
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// serviceName: my-redis.dns
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// timeout: 2000
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// cacheKeyFrom:
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// requestBody: "messages.@reverse.0.content"
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// cacheValueFrom:
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// responseBody: "choices.0"
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// returnResponseTemplate: |
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// {"id":"from-cache","choices":[%s],"model":"gpt-4o","object":"chat.completion","usage":{"prompt_tokens":0,"completion_tokens":0,"total_tokens":0}}
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// @End
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type RedisInfo struct {
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// @Title zh-CN redis 服务名称
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// @Description zh-CN 带服务类型的完整 FQDN 名称，例如 my-redis.dns、redis.my-ns.svc.cluster.local
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ServiceName string `required:"true" yaml:"serviceName" json:"serviceName"`
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// @Title zh-CN redis 服务端口
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// @Description zh-CN 默认值为6379
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ServicePort int `required:"false" yaml:"servicePort" json:"servicePort"`
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// @Title zh-CN 用户名
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// @Description zh-CN 登陆 redis 的用户名，非必填
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Username string `required:"false" yaml:"username" json:"username"`
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// @Title zh-CN 密码
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// @Description zh-CN 登陆 redis 的密码，非必填，可以只填密码
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Password string `required:"false" yaml:"password" json:"password"`
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// @Title zh-CN 请求超时
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// @Description zh-CN 请求 redis 的超时时间，单位为毫秒。默认值是1000，即1秒
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Timeout int `required:"false" yaml:"timeout" json:"timeout"`
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}
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type KVExtractor struct {
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// @Title zh-CN 从请求 Body 中基于 [GJSON PATH](https://github.com/tidwall/gjson/blob/master/SYNTAX.md) 语法提取字符串
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RequestBody string `required:"false" yaml:"requestBody" json:"requestBody"`
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// @Title zh-CN 从响应 Body 中基于 [GJSON PATH](https://github.com/tidwall/gjson/blob/master/SYNTAX.md) 语法提取字符串
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ResponseBody string `required:"false" yaml:"responseBody" json:"responseBody"`
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}
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type PluginConfig struct {
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// @Title zh-CN Redis 地址信息
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// @Description zh-CN 用于存储缓存结果的 Redis 地址
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RedisInfo RedisInfo `required:"true" yaml:"redis" json:"redis"`
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// @Title zh-CN 缓存 key 的来源
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// @Description zh-CN 往 redis 里存时，使用的 key 的提取方式
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CacheKeyFrom KVExtractor `required:"true" yaml:"cacheKeyFrom" json:"cacheKeyFrom"`
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// @Title zh-CN 缓存 value 的来源
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// @Description zh-CN 往 redis 里存时，使用的 value 的提取方式
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CacheValueFrom KVExtractor `required:"true" yaml:"cacheValueFrom" json:"cacheValueFrom"`
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// @Title zh-CN 流式响应下，缓存 value 的来源
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// @Description zh-CN 往 redis 里存时，使用的 value 的提取方式
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CacheStreamValueFrom KVExtractor `required:"true" yaml:"cacheStreamValueFrom" json:"cacheStreamValueFrom"`
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// @Title zh-CN 返回 HTTP 响应的模版
|
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// @Description zh-CN 用 %s 标记需要被 cache value 替换的部分
|
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ReturnResponseTemplate string `required:"true" yaml:"returnResponseTemplate" json:"returnResponseTemplate"`
|
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// @Title zh-CN 返回流式 HTTP 响应的模版
|
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// @Description zh-CN 用 %s 标记需要被 cache value 替换的部分
|
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ReturnStreamResponseTemplate string `required:"true" yaml:"returnStreamResponseTemplate" json:"returnStreamResponseTemplate"`
|
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// @Title zh-CN 缓存的过期时间
|
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// @Description zh-CN 单位是秒，默认值为0，即永不过期
|
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CacheTTL int `required:"false" yaml:"cacheTTL" json:"cacheTTL"`
|
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// @Title zh-CN Redis缓存Key的前缀
|
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// @Description zh-CN 默认值是"higress-ai-cache:"
|
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CacheKeyPrefix string `required:"false" yaml:"cacheKeyPrefix" json:"cacheKeyPrefix"`
|
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redisClient wrapper.RedisClient `yaml:"-" json:"-"`
|
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}
|
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func parseConfig(json gjson.Result, c *PluginConfig, log wrapper.Log) error {
|
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c.RedisInfo.ServiceName = json.Get("redis.serviceName").String()
|
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if c.RedisInfo.ServiceName == "" {
|
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return errors.New("redis service name must not by empty")
|
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}
|
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c.RedisInfo.ServicePort = int(json.Get("redis.servicePort").Int())
|
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if c.RedisInfo.ServicePort == 0 {
|
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if strings.HasSuffix(c.RedisInfo.ServiceName, ".static") {
|
||||
// use default logic port which is 80 for static service
|
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c.RedisInfo.ServicePort = 80
|
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} else {
|
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c.RedisInfo.ServicePort = 6379
|
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}
|
||||
}
|
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c.RedisInfo.Username = json.Get("redis.username").String()
|
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c.RedisInfo.Password = json.Get("redis.password").String()
|
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c.RedisInfo.Timeout = int(json.Get("redis.timeout").Int())
|
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if c.RedisInfo.Timeout == 0 {
|
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c.RedisInfo.Timeout = 1000
|
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}
|
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c.CacheKeyFrom.RequestBody = json.Get("cacheKeyFrom.requestBody").String()
|
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if c.CacheKeyFrom.RequestBody == "" {
|
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c.CacheKeyFrom.RequestBody = "messages.@reverse.0.content"
|
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}
|
||||
c.CacheValueFrom.ResponseBody = json.Get("cacheValueFrom.responseBody").String()
|
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if c.CacheValueFrom.ResponseBody == "" {
|
||||
c.CacheValueFrom.ResponseBody = "choices.0.message.content"
|
||||
}
|
||||
c.CacheStreamValueFrom.ResponseBody = json.Get("cacheStreamValueFrom.responseBody").String()
|
||||
if c.CacheStreamValueFrom.ResponseBody == "" {
|
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c.CacheStreamValueFrom.ResponseBody = "choices.0.delta.content"
|
||||
}
|
||||
c.ReturnResponseTemplate = json.Get("returnResponseTemplate").String()
|
||||
if c.ReturnResponseTemplate == "" {
|
||||
c.ReturnResponseTemplate = `{"id":"from-cache","choices":[{"index":0,"message":{"role":"assistant","content":"%s"},"finish_reason":"stop"}],"model":"gpt-4o","object":"chat.completion","usage":{"prompt_tokens":0,"completion_tokens":0,"total_tokens":0}}`
|
||||
}
|
||||
c.ReturnStreamResponseTemplate = json.Get("returnStreamResponseTemplate").String()
|
||||
if c.ReturnStreamResponseTemplate == "" {
|
||||
c.ReturnStreamResponseTemplate = `data:{"id":"from-cache","choices":[{"index":0,"delta":{"role":"assistant","content":"%s"},"finish_reason":"stop"}],"model":"gpt-4o","object":"chat.completion","usage":{"prompt_tokens":0,"completion_tokens":0,"total_tokens":0}}` + "\n\ndata:[DONE]\n\n"
|
||||
}
|
||||
c.CacheKeyPrefix = json.Get("cacheKeyPrefix").String()
|
||||
if c.CacheKeyPrefix == "" {
|
||||
c.CacheKeyPrefix = DefaultCacheKeyPrefix
|
||||
}
|
||||
c.redisClient = wrapper.NewRedisClusterClient(wrapper.FQDNCluster{
|
||||
FQDN: c.RedisInfo.ServiceName,
|
||||
Port: int64(c.RedisInfo.ServicePort),
|
||||
})
|
||||
return c.redisClient.Init(c.RedisInfo.Username, c.RedisInfo.Password, int64(c.RedisInfo.Timeout))
|
||||
}
|
||||
|
||||
func onHttpRequestHeaders(ctx wrapper.HttpContext, config PluginConfig, log wrapper.Log) types.Action {
|
||||
contentType, _ := proxywasm.GetHttpRequestHeader("content-type")
|
||||
// The request does not have a body.
|
||||
if contentType == "" {
|
||||
return types.ActionContinue
|
||||
}
|
||||
if !strings.Contains(contentType, "application/json") {
|
||||
log.Warnf("content is not json, can't process:%s", contentType)
|
||||
ctx.DontReadRequestBody()
|
||||
return types.ActionContinue
|
||||
}
|
||||
// compatiable with qwen
|
||||
x_dashscope_sse, _ := proxywasm.GetHttpRequestHeader("X-DashScope-SSE")
|
||||
accept, _ := proxywasm.GetHttpRequestHeader("Accept")
|
||||
if x_dashscope_sse == "enable" || strings.Contains(accept, "text/event-stream") {
|
||||
ctx.SetContext(StreamContextKey, struct{}{})
|
||||
}
|
||||
proxywasm.RemoveHttpRequestHeader("Accept-Encoding")
|
||||
// The request has a body and requires delaying the header transmission until a cache miss occurs,
|
||||
// at which point the header should be sent.
|
||||
return types.HeaderStopIteration
|
||||
}
|
||||
|
||||
func TrimQuote(source string) string {
|
||||
return strings.Trim(source, `"`)
|
||||
}
|
||||
|
||||
func onHttpRequestBody(ctx wrapper.HttpContext, config PluginConfig, body []byte, log wrapper.Log) types.Action {
|
||||
bodyJson := gjson.ParseBytes(body)
|
||||
// TODO: It may be necessary to support stream mode determination for different LLM providers.
|
||||
stream := false
|
||||
if bodyJson.Get("stream").Bool() {
|
||||
stream = true
|
||||
ctx.SetContext(StreamContextKey, struct{}{})
|
||||
} else if ctx.GetContext(StreamContextKey) != nil {
|
||||
stream = true
|
||||
}
|
||||
key := TrimQuote(bodyJson.Get(config.CacheKeyFrom.RequestBody).Raw)
|
||||
if key == "" {
|
||||
log.Debug("parse key from request body failed")
|
||||
return types.ActionContinue
|
||||
}
|
||||
ctx.SetContext(CacheKeyContextKey, key)
|
||||
err := config.redisClient.Get(config.CacheKeyPrefix+key, func(response resp.Value) {
|
||||
if err := response.Error(); err != nil {
|
||||
log.Errorf("redis get key:%s failed, err:%v", key, err)
|
||||
proxywasm.ResumeHttpRequest()
|
||||
return
|
||||
}
|
||||
if response.IsNull() {
|
||||
log.Debugf("cache miss, key:%s", key)
|
||||
proxywasm.ResumeHttpRequest()
|
||||
return
|
||||
}
|
||||
log.Debugf("cache hit, key:%s", key)
|
||||
ctx.SetContext(CacheKeyContextKey, nil)
|
||||
if !stream {
|
||||
proxywasm.SendHttpResponse(200, [][2]string{{"content-type", "application/json; charset=utf-8"}}, []byte(fmt.Sprintf(config.ReturnResponseTemplate, response.String())), -1)
|
||||
} else {
|
||||
proxywasm.SendHttpResponse(200, [][2]string{{"content-type", "text/event-stream; charset=utf-8"}}, []byte(fmt.Sprintf(config.ReturnStreamResponseTemplate, response.String())), -1)
|
||||
}
|
||||
})
|
||||
if err != nil {
|
||||
log.Error("redis access failed")
|
||||
return types.ActionContinue
|
||||
}
|
||||
return types.ActionPause
|
||||
}
|
||||
|
||||
func processSSEMessage(ctx wrapper.HttpContext, config PluginConfig, sseMessage string, log wrapper.Log) string {
|
||||
subMessages := strings.Split(sseMessage, "\n")
|
||||
var message string
|
||||
for _, msg := range subMessages {
|
||||
if strings.HasPrefix(msg, "data:") {
|
||||
message = msg
|
||||
break
|
||||
}
|
||||
}
|
||||
if len(message) < 6 {
|
||||
log.Errorf("invalid message:%s", message)
|
||||
return ""
|
||||
}
|
||||
// skip the prefix "data:"
|
||||
bodyJson := message[5:]
|
||||
if gjson.Get(bodyJson, config.CacheStreamValueFrom.ResponseBody).Exists() {
|
||||
tempContentI := ctx.GetContext(CacheContentContextKey)
|
||||
if tempContentI == nil {
|
||||
content := TrimQuote(gjson.Get(bodyJson, config.CacheStreamValueFrom.ResponseBody).Raw)
|
||||
ctx.SetContext(CacheContentContextKey, content)
|
||||
return content
|
||||
}
|
||||
append := TrimQuote(gjson.Get(bodyJson, config.CacheStreamValueFrom.ResponseBody).Raw)
|
||||
content := tempContentI.(string) + append
|
||||
ctx.SetContext(CacheContentContextKey, content)
|
||||
return content
|
||||
} else if gjson.Get(bodyJson, "choices.0.delta.content.tool_calls").Exists() {
|
||||
// TODO: compatible with other providers
|
||||
ctx.SetContext(ToolCallsContextKey, struct{}{})
|
||||
return ""
|
||||
}
|
||||
log.Debugf("unknown message:%s", bodyJson)
|
||||
return ""
|
||||
}
|
||||
|
||||
func onHttpResponseBody(ctx wrapper.HttpContext, config PluginConfig, chunk []byte, isLastChunk bool, log wrapper.Log) []byte {
|
||||
if ctx.GetContext(ToolCallsContextKey) != nil {
|
||||
// we should not cache tool call result
|
||||
return chunk
|
||||
}
|
||||
keyI := ctx.GetContext(CacheKeyContextKey)
|
||||
if keyI == nil {
|
||||
return chunk
|
||||
}
|
||||
if !isLastChunk {
|
||||
stream := ctx.GetContext(StreamContextKey)
|
||||
if stream == nil {
|
||||
tempContentI := ctx.GetContext(CacheContentContextKey)
|
||||
if tempContentI == nil {
|
||||
ctx.SetContext(CacheContentContextKey, chunk)
|
||||
return chunk
|
||||
}
|
||||
tempContent := tempContentI.([]byte)
|
||||
tempContent = append(tempContent, chunk...)
|
||||
ctx.SetContext(CacheContentContextKey, tempContent)
|
||||
} else {
|
||||
var partialMessage []byte
|
||||
partialMessageI := ctx.GetContext(PartialMessageContextKey)
|
||||
if partialMessageI != nil {
|
||||
partialMessage = append(partialMessageI.([]byte), chunk...)
|
||||
} else {
|
||||
partialMessage = chunk
|
||||
}
|
||||
messages := strings.Split(string(partialMessage), "\n\n")
|
||||
for i, msg := range messages {
|
||||
if i < len(messages)-1 {
|
||||
// process complete message
|
||||
processSSEMessage(ctx, config, msg, log)
|
||||
}
|
||||
}
|
||||
if !strings.HasSuffix(string(partialMessage), "\n\n") {
|
||||
ctx.SetContext(PartialMessageContextKey, []byte(messages[len(messages)-1]))
|
||||
} else {
|
||||
ctx.SetContext(PartialMessageContextKey, nil)
|
||||
}
|
||||
}
|
||||
return chunk
|
||||
}
|
||||
// last chunk
|
||||
key := keyI.(string)
|
||||
stream := ctx.GetContext(StreamContextKey)
|
||||
var value string
|
||||
if stream == nil {
|
||||
var body []byte
|
||||
tempContentI := ctx.GetContext(CacheContentContextKey)
|
||||
if tempContentI != nil {
|
||||
body = append(tempContentI.([]byte), chunk...)
|
||||
} else {
|
||||
body = chunk
|
||||
}
|
||||
bodyJson := gjson.ParseBytes(body)
|
||||
|
||||
value = TrimQuote(bodyJson.Get(config.CacheValueFrom.ResponseBody).Raw)
|
||||
if value == "" {
|
||||
log.Warnf("parse value from response body failded, body:%s", body)
|
||||
return chunk
|
||||
}
|
||||
} else {
|
||||
if len(chunk) > 0 {
|
||||
var lastMessage []byte
|
||||
partialMessageI := ctx.GetContext(PartialMessageContextKey)
|
||||
if partialMessageI != nil {
|
||||
lastMessage = append(partialMessageI.([]byte), chunk...)
|
||||
} else {
|
||||
lastMessage = chunk
|
||||
}
|
||||
if !strings.HasSuffix(string(lastMessage), "\n\n") {
|
||||
log.Warnf("invalid lastMessage:%s", lastMessage)
|
||||
return chunk
|
||||
}
|
||||
// remove the last \n\n
|
||||
lastMessage = lastMessage[:len(lastMessage)-2]
|
||||
value = processSSEMessage(ctx, config, string(lastMessage), log)
|
||||
} else {
|
||||
tempContentI := ctx.GetContext(CacheContentContextKey)
|
||||
if tempContentI == nil {
|
||||
return chunk
|
||||
}
|
||||
value = tempContentI.(string)
|
||||
}
|
||||
}
|
||||
config.redisClient.Set(config.CacheKeyPrefix+key, value, nil)
|
||||
if config.CacheTTL != 0 {
|
||||
config.redisClient.Expire(config.CacheKeyPrefix+key, config.CacheTTL, nil)
|
||||
}
|
||||
return chunk
|
||||
}
|
||||
52
plugins/wasm-go/extensions/ai-cache/option.yaml
Normal file
52
plugins/wasm-go/extensions/ai-cache/option.yaml
Normal file
@@ -0,0 +1,52 @@
|
||||
# File generated by hgctl. Modify as required.
|
||||
|
||||
version: 1.0.0
|
||||
|
||||
build:
|
||||
# The official builder image version
|
||||
builder:
|
||||
go: 1.19
|
||||
tinygo: 0.28.1
|
||||
oras: 1.0.0
|
||||
# The WASM plugin project directory
|
||||
input: ./
|
||||
# The output of the build products
|
||||
output:
|
||||
# Choose between 'files' and 'image'
|
||||
type: files
|
||||
# Destination address: when type=files, specify the local directory path, e.g., './out' or
|
||||
# type=image, specify the remote docker repository, e.g., 'docker.io/<your_username>/<your_image>'
|
||||
dest: ./out
|
||||
# The authentication configuration for pushing image to the docker repository
|
||||
docker-auth: ~/.docker/config.json
|
||||
# The directory for the WASM plugin configuration structure
|
||||
model-dir: ./
|
||||
# The WASM plugin configuration structure name
|
||||
model: PluginConfig
|
||||
# Enable debug mode
|
||||
debug: false
|
||||
|
||||
test:
|
||||
# Test environment name, that is a docker compose project name
|
||||
name: wasm-test
|
||||
# The output path to build products, that is the source of test configuration parameters
|
||||
from-path: ./out
|
||||
# The test configuration source
|
||||
test-path: ./test
|
||||
# Docker compose configuration, which is empty, looks for the following files from 'test-path':
|
||||
# compose.yaml, compose.yml, docker-compose.yml, docker-compose.yaml
|
||||
compose-file:
|
||||
# Detached mode: Run containers in the background
|
||||
detach: false
|
||||
|
||||
install:
|
||||
# The namespace of the installation
|
||||
namespace: higress-system
|
||||
# Use to validate WASM plugin configuration when install by yaml
|
||||
spec-yaml: ./out/spec.yaml
|
||||
# Installation source. Choose between 'from-yaml' and 'from-go-project'
|
||||
from-yaml: ./test/plugin-conf.yaml
|
||||
# If 'from-go-src' is non-empty, the output type of the build option must be 'image'
|
||||
from-go-src:
|
||||
# Enable debug mode
|
||||
debug: false
|
||||
Reference in New Issue
Block a user