From 08837c71ff065791a400b976fa23ca2fd338d5bc Mon Sep 17 00:00:00 2001 From: abcdlsj Date: Thu, 11 Apr 2024 18:16:59 +0800 Subject: [PATCH] readability: redis & dockerfile --- go/readability/Dockerfile | 16 +++++++ go/readability/README.md | 16 ++++++- go/readability/article.html | 1 + go/readability/go.mod | 7 ++- go/readability/go.sum | 77 +++++++++++++++++++++++++++++- go/readability/index.html | 7 +++ go/readability/main.go | 94 +++++++++++++++++++++++++++++++++---- 7 files changed, 205 insertions(+), 13 deletions(-) create mode 100644 go/readability/Dockerfile diff --git a/go/readability/Dockerfile b/go/readability/Dockerfile new file mode 100644 index 0000000..51884f7 --- /dev/null +++ b/go/readability/Dockerfile @@ -0,0 +1,16 @@ +FROM golang:alpine AS builder +RUN apk add --no-cache build-base +WORKDIR /build +COPY . . +RUN apk --no-cache add ca-certificates +RUN go build -ldflags="-s -w" -trimpath -o /dist/readability . +RUN ldd /dist/readability | tr -s [:blank:] '\n' | grep ^/ | xargs -I % install -D % /dist/% +RUN ln -s ld-musl-x86_64.so.1 /dist/lib/libc.musl-x86_64.so.1 + +FROM scratch +COPY --from=builder /dist / +COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ + +EXPOSE 8080 + +CMD ["/readability"] \ No newline at end of file diff --git a/go/readability/README.md b/go/readability/README.md index 469a1ae..c6fd2c4 100644 --- a/go/readability/README.md +++ b/go/readability/README.md @@ -1,3 +1,17 @@ # Readability -Can find more at my blog [Write a Readability Tool](https://abcdlsj.github.io/posts/write-a-readability-tool.html) \ No newline at end of file +Can find more at my blog [Write a Readability Tool](https://abcdlsj.github.io/posts/write-a-readability-tool.html) + + +## Run + +1. Stand run + +`PORT` default 8080 +``` +PORT= REDIS_URL=redis:// go run main.go +``` + +2. Use Docker + +See dockerfile \ No newline at end of file diff --git a/go/readability/article.html b/go/readability/article.html index 351db19..4ca0392 100644 --- a/go/readability/article.html +++ b/go/readability/article.html @@ -4,6 +4,7 @@ Article Content + Home diff --git a/go/readability/go.mod b/go/readability/go.mod index 1eb2c34..73101c7 100644 --- a/go/readability/go.mod +++ b/go/readability/go.mod @@ -3,6 +3,7 @@ module github.com/abcdlsj/share/go/readability go 1.20 require ( + github.com/go-redis/redis v6.15.9+incompatible github.com/go-shiori/go-readability v0.0.0-20230421032831-c66949dfc0ad github.com/gorilla/mux v1.8.0 ) @@ -11,6 +12,8 @@ require ( github.com/andybalholm/cascadia v1.3.2 // indirect github.com/go-shiori/dom v0.0.0-20210627111528-4e4722cd0d65 // indirect github.com/gogs/chardet v0.0.0-20211120154057-b7413eaefb8f // indirect - golang.org/x/net v0.9.0 // indirect - golang.org/x/text v0.9.0 // indirect + github.com/onsi/ginkgo v1.16.5 // indirect + github.com/onsi/gomega v1.32.0 // indirect + golang.org/x/net v0.20.0 // indirect + golang.org/x/text v0.14.0 // indirect ) diff --git a/go/readability/go.sum b/go/readability/go.sum index 8d019b5..ca76992 100644 --- a/go/readability/go.sum +++ b/go/readability/go.sum @@ -1,40 +1,94 @@ github.com/andybalholm/cascadia v1.2.0/go.mod h1:YCyR8vOZT9aZ1CHEd8ap0gMVm2aFgxBp0T0eFw1RUQY= github.com/andybalholm/cascadia v1.3.2 h1:3Xi6Dw5lHF15JtdcmAHD3i1+T8plmv7BQ/nsViSLyss= github.com/andybalholm/cascadia v1.3.2/go.mod h1:7gtRlve5FxPPgIgX36uWBX58OdBsSS6lUvCFb+h7KvU= +github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo= +github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4= +github.com/fsnotify/fsnotify v1.4.9/go.mod 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v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.7.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.16.0 h1:xWw16ngr6ZMtmxDyKyIgsE93KNKz5HKmMa3b8ALHidU= golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo= golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8= golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k= @@ -44,10 +98,29 @@ golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ= golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8= -golang.org/x/text v0.9.0 h1:2sjJmO8cDvYveuX97RDLsxlyUxLl+GHoLxBiRdHllBE= golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8= +golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ= +golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU= golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= +golang.org/x/tools v0.0.0-20201224043029-2b0845dc783e/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA= golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc= golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU= golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= +golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= +golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= +golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= +google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8= +google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0= +google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM= +google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE= +google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo= +google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU= +gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= +gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys= +gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ= +gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw= +gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= diff --git a/go/readability/index.html b/go/readability/index.html index 96ba371..a1f6348 100644 --- a/go/readability/index.html +++ b/go/readability/index.html @@ -14,6 +14,13 @@

Readability

+ +

Recents:

+
    + {{range $index, $record := .Recents}} + {{$record}} + {{end}} +
\ No newline at end of file diff --git a/go/readability/main.go b/go/readability/main.go index 582b551..1b2c2ff 100644 --- a/go/readability/main.go +++ b/go/readability/main.go @@ -2,6 +2,8 @@ package main import ( "embed" + "encoding/json" + "errors" "html/template" "log" "net/http" @@ -9,6 +11,7 @@ import ( "strings" "time" + "github.com/go-redis/redis" readability "github.com/go-shiori/go-readability" "github.com/gorilla/mux" ) @@ -33,11 +36,22 @@ var ( }, } - artsCache = make(map[string]article) - tmpl = template.Must(template.New("article.html").Funcs(funcMap).ParseFS(tmplFiles, "article.html", "index.html")) + + REDIS_URL = os.Getenv("REDIS_URL") + + redisclient *redis.Client ) +func init() { + opt, _ := redis.ParseURL(REDIS_URL) + redisclient = redis.NewClient(opt) + + if err := redisclient.Ping().Err(); err != nil { + log.Fatalf("Failed to connect to redis, URL: %s, error: %s", REDIS_URL, err.Error()) + } +} + func main() { r := mux.NewRouter() r.SkipClean(true) @@ -53,14 +67,24 @@ func main() { func port() string { if port := os.Getenv("PORT"); port != "" { + log.Println("Listening on address, http://localhost:" + port) return ":" + port } + log.Println("Listening on address, http://localhost:8080") return ":8080" } func indexHandler(w http.ResponseWriter, r *http.Request) { - err := tmpl.ExecuteTemplate(w, "index.html", nil) + last10arts, err := getLastNArticles(10) + if err != nil { + http.Error(w, err.Error(), http.StatusInternalServerError) + } + + err = tmpl.ExecuteTemplate(w, "index.html", map[string]interface{}{ + "Recents": last10arts, + }) + if err != nil { http.Error(w, err.Error(), http.StatusInternalServerError) } @@ -101,17 +125,19 @@ func readHandler(w http.ResponseWriter, r *http.Request) { } func readabyFormURL(uri string) article { - if cache, ok := artsCache[uri]; ok { - return cache + if art, err := getArticleFromCache(uri); err != nil || art != nil { + return *art } - art, err := readability.FromURL(uri, 30*time.Second) + fromdata, err := readability.FromURL(uri, 30*time.Second) if err != nil { return article{URL: uri, ErrMsg: err.Error()} } - artsCache[uri] = article{URL: uri, Title: art.Title, Content: art.Content} - return article{URL: uri, Title: art.Title, Content: art.Content} + art := article{URL: uri, Title: fromdata.Title, Content: fromdata.Content} + + defer setArticleToCache(uri, art) + return art } func render(w http.ResponseWriter, data article) { @@ -120,3 +146,55 @@ func render(w http.ResponseWriter, data article) { http.Error(w, err.Error(), http.StatusInternalServerError) } } + +func setArticleToCache(key string, art article) error { + data, err := json.Marshal(art) + if err != nil { + return err + } + + defer lpushToRedis(key) + + return redisclient.Set(key, data, 0).Err() +} + +func getArticleFromCache(key string) (*article, error) { + var data []byte + + if err := redisclient.Get(key).Scan(&data); err != nil { + if err == redis.Nil { + return nil, nil + } + + return &article{URL: key, ErrMsg: err.Error()}, errors.New("failed to get article from cache") + } + + var art article + if err := json.Unmarshal(data, &art); err != nil { + return &article{URL: key, ErrMsg: err.Error()}, errors.New("failed to unmarshal article from json") + } + + log.Printf("get article from cache: %s", key) + defer incrViewCount(key) + + return &art, nil +} + +func incrViewCount(key string) error { + return redisclient.ZIncrBy("readability-viewcount", 1, key).Err() +} + +func lpushToRedis(key string) error { + return redisclient.LPush("readability-timequeue", key).Err() +} + +func getLastNArticles(n int) ([]string, error) { + records := make([]string, 0, n) + + if err := redisclient.LRange("readability-timequeue", 0, int64(n)).ScanSlice(&records); err != nil { + log.Printf("failed to get last %d articles from redis: %s", n, err.Error()) + return nil, err + } + + return records, nil +}