diff --git a/.gitignore b/.gitignore index adf8f72..2b4c842 100644 --- a/.gitignore +++ b/.gitignore @@ -21,3 +21,4 @@ # Go workspace file go.work +main.db diff --git a/assests/favicon.ico b/assests/favicon.ico new file mode 100644 index 0000000..5d58779 Binary files /dev/null and b/assests/favicon.ico differ diff --git a/db.go b/db.go new file mode 100644 index 0000000..94f56c1 --- /dev/null +++ b/db.go @@ -0,0 +1,145 @@ +package main + +import ( + "database/sql" + "fmt" + + "g.arns.lt/zordsdavini/abcex" + _ "github.com/mattn/go-sqlite3" +) + +var migrations = []string{} + +func connectDB() (*sql.DB, error) { + db, err := sql.Open("sqlite3", "./main.db") + if err != nil { + return db, err + } + + err = checkPreinstall(db) + if err != nil { + return db, err + } + + return db, nil +} + +func checkPreinstall(db *sql.DB) error { + sqlStmt := ` + CREATE TABLE IF NOT EXISTS Urls (id INTEGER NOT NULL PRIMARY KEY, url TEXT NOT NULL, short_url TEXT NULL); + CREATE UNIQUE INDEX IF NOT EXISTS url_idx ON Urls (short_url); + + CREATE TABLE IF NOT EXISTS Stats (id INTEGER NOT NULL PRIMARY KEY, name TEXT NOT NULL, count INT, comment TEXT); + CREATE UNIQUE INDEX IF NOT EXISTS stats_idx ON Stats (name); + INSERT OR IGNORE INTO Stats (name, count) VALUES ('last_migration', 0); + ` + _, err := db.Exec(sqlStmt) + if err != nil { + return err + } + + err = runMigrations(db) + if err != nil { + return err + } + + return nil +} + +func runMigrations(db *sql.DB) error { + lastMigration, err := getStatsCounter(db, "last_migration") + if err != nil { + return err + } + + for i := lastMigration; i < len(migrations); i++ { + sqlStmt := migrations[i] + _, err := db.Exec(sqlStmt) + if err != nil { + return err + } + + db.Exec("UPDATE Stats SET count=count+1 WHERE name='last_migration';") + } + + return nil +} + +func getStatsCounter(db *sql.DB, name string) (int, error) { + stmt, err := db.Prepare("SELECT count FROM Stats WHERE name = ?") + if err != nil { + return 0, err + } + defer stmt.Close() + + var count int + err = stmt.QueryRow(name).Scan(&count) + if err != nil { + return 0, nil + } + + return count, nil +} + +func getStatsComment(db *sql.DB, name string) (string, error) { + stmt, err := db.Prepare("SELECT comment FROM Stats WHERE name = ?") + if err != nil { + return "", err + } + defer stmt.Close() + + var comment string + err = stmt.QueryRow(name).Scan(&comment) + if err != nil { + return "", nil + } + + return comment, nil +} + +func getShortUrl(db *sql.DB, url string) string { + if len(url) == 0 { + return "" + } + + fmt.Println(url) + res, err := db.Exec( + "INSERT INTO Urls (url) VALUES (?);", + url, + ) + if err != nil { + return "" + } + + lid, err := res.LastInsertId() + if err != nil { + return "" + } + + shortUrl := abcex.Encode(lid) + fmt.Println(lid, shortUrl) + + db.Exec( + "UPDATE Urls SET short_url=? WHERE id=?", + shortUrl, + lid, + ) + + return shortUrl +} + +func getRedirectUrl(db *sql.DB, shortUrl string) string { + stmt, err := db.Prepare("SELECT url FROM Urls WHERE short_url = ?") + if err != nil { + return "" + } + defer stmt.Close() + + var url string + err = stmt.QueryRow(shortUrl).Scan(&url) + if err != nil { + return "" + } + + return url +} diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..dccd613 --- /dev/null +++ b/go.mod @@ -0,0 +1,41 @@ +module g.arns.lt/zordsdavini/url_shortiner + +go 1.21.6 + +require ( + g.arns.lt/zordsdavini/abcex v1.0.0 + github.com/foolin/goview v0.3.0 + github.com/gin-contrib/sessions v0.0.5 + github.com/gin-gonic/gin v1.9.1 + github.com/mattn/go-sqlite3 v2.0.3+incompatible +) + +require ( + github.com/bytedance/sonic v1.9.1 // indirect + github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311 // indirect + github.com/gabriel-vasile/mimetype v1.4.2 // indirect + github.com/gin-contrib/sse v0.1.0 // indirect + github.com/go-playground/locales v0.14.1 // indirect + github.com/go-playground/universal-translator v0.18.1 // indirect + github.com/go-playground/validator/v10 v10.14.0 // indirect + github.com/goccy/go-json v0.10.2 // indirect + github.com/gorilla/context v1.1.1 // indirect + github.com/gorilla/securecookie v1.1.1 // indirect + github.com/gorilla/sessions v1.2.1 // indirect + github.com/json-iterator/go v1.1.12 // indirect + github.com/klauspost/cpuid/v2 v2.2.4 // indirect + github.com/leodido/go-urn v1.2.4 // indirect + github.com/mattn/go-isatty v0.0.19 // indirect + github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect + github.com/modern-go/reflect2 v1.0.2 // indirect + github.com/pelletier/go-toml/v2 v2.0.8 // indirect + github.com/twitchyliquid64/golang-asm v0.15.1 // indirect + github.com/ugorji/go/codec v1.2.11 // indirect + golang.org/x/arch v0.3.0 // indirect + golang.org/x/crypto v0.9.0 // indirect + golang.org/x/net v0.10.0 // indirect + golang.org/x/sys v0.8.0 // indirect + golang.org/x/text v0.9.0 // indirect + google.golang.org/protobuf v1.30.0 // indirect + gopkg.in/yaml.v3 v3.0.1 // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..13c7b0b --- /dev/null +++ b/go.sum @@ -0,0 +1,141 @@ +g.arns.lt/zordsdavini/abcex v1.0.0 h1:qQqlZ4DMfethCGK4I6yGaLqMrTzKNIshqpINd1l3t0E= +g.arns.lt/zordsdavini/abcex v1.0.0/go.mod h1:YRcJgts3XZwI+LEkngpfUab3DkUAW387Irpr43hIym8= +github.com/GeertJohan/go.incremental v1.0.0/go.mod h1:6fAjUhbVuX1KcMD3c8TEgVUqmo4seqhv0i0kdATSkM0= +github.com/GeertJohan/go.rice v1.0.0/go.mod h1:eH6gbSOAUv07dQuZVnBmoDP8mgsM1rtixis4Tib9if0= +github.com/akavel/rsrc v0.8.0/go.mod h1:uLoCtb9J+EyAqh+26kdrTgmzRBFPGOolLWKpdxkKq+c= +github.com/bytedance/sonic v1.5.0/go.mod h1:ED5hyg4y6t3/9Ku1R6dU/4KyJ48DZ4jPhfY1O2AihPM= +github.com/bytedance/sonic v1.9.1 h1:6iJ6NqdoxCDr6mbY8h18oSO+cShGSMRGCEo7F2h0x8s= +github.com/bytedance/sonic v1.9.1/go.mod h1:i736AoUSYt75HyZLoJW9ERYxcy6eaN6h4BZXU064P/U= 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"github.com/gin-contrib/sessions" + "github.com/gin-contrib/sessions/cookie" + "github.com/gin-gonic/gin" +) + +func main() { + db, err := connectDB() + if err != nil { + log.Fatal(err) + } + defer db.Close() + + r := gin.Default() + + r.HTMLRender = ginview.Default() + + store := cookie.NewStore([]byte("secret")) + r.Use(sessions.Sessions("mysession", store)) + + r.StaticFile("/favicon.ico", "./assets/favicon.ico") + + r.GET("/", func(c *gin.Context) { + c.HTML(http.StatusOK, "index", gin.H{}) + }) + + r.POST("/", func(c *gin.Context) { + shortUrl := getShortUrl(db, c.PostForm("url")) + if len(shortUrl) > 0 { + shortUrl = "https://" + c.Request.Host + "/" + shortUrl + } + c.HTML(http.StatusOK, "index", gin.H{ + "shortUrl": shortUrl, + }) + }) + + r.GET("/:short_url", func(c *gin.Context) { + redirectUrl := getRedirectUrl(db, c.Param("short_url")) + + if len(redirectUrl) == 0 { + c.Redirect(http.StatusMovedPermanently, "/") + } + + c.Redirect(http.StatusMovedPermanently, redirectUrl) + }) + + r.Run() +} diff --git a/views/index.html b/views/index.html new file mode 100644 index 0000000..fa407fc --- /dev/null +++ b/views/index.html @@ -0,0 +1,28 @@ +{{define "head"}} + +{{end}} + + +{{define "content"}} + +

+

+ + +
+ +{{if .shortUrl}} + {{ .shortUrl }} +{{end}} +

+ +{{end}} diff --git a/views/layouts/footer.html b/views/layouts/footer.html new file mode 100644 index 0000000..0de27d1 --- /dev/null +++ b/views/layouts/footer.html @@ -0,0 +1,13 @@ +
+
+ Udovič Arns + @zordsdavini@s.arns.lt +
+ +
+
+ Pruojekta kuods īr https://g.arns.lt/zordsdavini/url_shortiner +
+ +
+
diff --git a/views/layouts/master.html b/views/layouts/master.html new file mode 100644 index 0000000..e728aa6 --- /dev/null +++ b/views/layouts/master.html @@ -0,0 +1,26 @@ + + + + + Arna trumpintuos + + + {{template "head" .}} + + + +
+

Arna trumpintuos

+ +
+
+ {{template "content" .}} +
+
+ + {{include "layouts/footer"}} + + +
+ +