diff --git a/.gitignore b/.gitignore index 9de9393..069a597 100644 --- a/.gitignore +++ b/.gitignore @@ -1,2 +1,3 @@ kls.conf -kls \ No newline at end of file +kls +*.db \ No newline at end of file diff --git a/CLAUDE.md b/CLAUDE.md new file mode 100644 index 0000000..1e95a87 --- /dev/null +++ b/CLAUDE.md @@ -0,0 +1,43 @@ +# CLAUDE.md + +This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository. + +## What is kls + +A URL shortener web service. Users submit a URL, get back a 5-character short code. Visiting `/` redirects to the original URL. Admin routes (POST, /list) are protected with HTTP Basic Auth. + +## Build and Run + +```bash +go build -o kls . +./kls -f /path/to/kls.conf +``` + +No Makefile, no tests. The binary is `.gitignore`d. + +## Configuration + +Uses `goutils/config` to load a key=value config file (default `~/.config/kls/kls.conf`). Required keys: + +- `DB_PASSWORD`, `DB_HOST` — no defaults +- `HTTP_USER`, `HTTP_PASS` — Basic Auth credentials +- `HTTP_ADDR` — bind address + +Optional (have defaults): `DB_ENGINE` (postgres), `DB_NAME` (kls), `DB_USER` (kls), `DB_PORT` (5432), `HTTP_PORT` (8000). + +## Architecture + +- **`main.go`** — entry point: loads config, connects to DB, starts HTTP server. +- **`handler.go`** — HTTP routing and handlers on the `server` struct. Implements `ServeHTTP` directly (no router library). GET requests matching a valid short code bypass auth and redirect; everything else requires Basic Auth. Templates are embedded via `//go:embed`. +- **`links/`** — core domain package: + - `url.go` — `URL` model, CRUD operations (Store, Lookup, StoreURL, RetrieveURL, FetchAll), URL normalization (strips query/fragment by default), and cleaning logic. Uses squirrel for query building with PostgreSQL dollar placeholders. + - `db.go` — PostgreSQL connection setup via pgx/v4 pool. + - `alphabet.go` — short code generation: 5 random characters from an unambiguous alphabet (`ABCDEFGHJKMNPQRSTUVWXYZ23456789`, excludes 0/O/1/I/L). `ValidShortCode` regex is used for routing. +- **`schema.sql`** — single `urls` table with `id` (UUID), `url`, `nurl` (normalized), `short` (unique), `created_at`. +- **`templates/`** — Go HTML templates (`index.tpl` for submit form, `list.tpl` for listing all URLs). + +## Key behaviors + +- **Deduplication**: `StoreURL` checks for an existing normalized URL before creating a new entry. +- **URL cleaning**: By default, query strings are stripped. The "rawp" form checkbox preserves the original query string. +- **No router**: `server.ServeHTTP` handles all dispatch — check there when adding routes. diff --git a/Dockerfile b/Dockerfile new file mode 100644 index 0000000..22466e0 --- /dev/null +++ b/Dockerfile @@ -0,0 +1,21 @@ +FROM golang:1.25-alpine AS builder + +RUN apk add --no-cache git +WORKDIR /build +COPY go.mod go.sum ./ +RUN go mod download +COPY . . + +RUN CGO_ENABLED=0 go build -trimpath \ + -ldflags="-s -w" \ + -o /kls . + +FROM alpine:3.21 + +RUN apk add --no-cache ca-certificates tzdata +COPY --from=builder /kls /usr/local/bin/kls + +WORKDIR /srv/kls + +ENTRYPOINT ["kls"] +CMD ["-f", "/srv/kls/kls.conf"] diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..2dab1c8 --- /dev/null +++ b/Makefile @@ -0,0 +1,13 @@ +all: vet build + +build: + go build ./... + +vet: + go vet ./... + +MCR = mcr.svc.mcp.metacircular.net:8443 +VERSION = $(shell git describe --tags --always --dirty) + +docker: + docker build -t $(MCR)/kls:$(VERSION) -f Dockerfile . diff --git a/cmd/pg2sqlite/main.go b/cmd/pg2sqlite/main.go new file mode 100644 index 0000000..0725f50 --- /dev/null +++ b/cmd/pg2sqlite/main.go @@ -0,0 +1,94 @@ +package main + +import ( + "context" + "database/sql" + "flag" + "fmt" + "log" + "os" + "time" + + "github.com/jackc/pgx/v4" + _ "modernc.org/sqlite" +) + +func main() { + pgConn := flag.String("pg", "", "postgres connection string (e.g. postgres://user:pass@host:5432/kls?sslmode=verify-full)") + out := flag.String("out", "kls.db", "output sqlite file path") + flag.Parse() + + if *pgConn == "" { + fmt.Fprintln(os.Stderr, "usage: pg2sqlite -pg [-out kls.db]") + os.Exit(1) + } + + ctx := context.Background() + + // Connect to Postgres + pg, err := pgx.Connect(ctx, *pgConn) + if err != nil { + log.Fatalf("postgres: %v", err) + } + defer pg.Close(ctx) + + // Open SQLite + os.Remove(*out) + lite, err := sql.Open("sqlite", *out) + if err != nil { + log.Fatalf("sqlite open: %v", err) + } + defer lite.Close() + + _, err = lite.ExecContext(ctx, `CREATE TABLE urls ( + id TEXT PRIMARY KEY, + url TEXT NOT NULL, + nurl TEXT NOT NULL, + short TEXT NOT NULL UNIQUE, + created_at TEXT NOT NULL + )`) + if err != nil { + log.Fatalf("sqlite create table: %v", err) + } + + // Read from Postgres + rows, err := pg.Query(ctx, `SELECT id, url, nurl, short, created_at FROM urls ORDER BY created_at`) + if err != nil { + log.Fatalf("postgres query: %v", err) + } + defer rows.Close() + + tx, err := lite.BeginTx(ctx, nil) + if err != nil { + log.Fatalf("sqlite begin: %v", err) + } + + stmt, err := tx.PrepareContext(ctx, `INSERT INTO urls (id, url, nurl, short, created_at) VALUES (?, ?, ?, ?, ?)`) + if err != nil { + log.Fatalf("sqlite prepare: %v", err) + } + defer stmt.Close() + + var n int + for rows.Next() { + var id, url, nurl, short string + var createdAt time.Time + if err := rows.Scan(&id, &url, &nurl, &short, &createdAt); err != nil { + log.Fatalf("postgres scan: %v", err) + } + + if _, err := stmt.ExecContext(ctx, id, url, nurl, short, createdAt.Format(time.RFC3339)); err != nil { + log.Fatalf("sqlite insert: %v", err) + } + n++ + } + if err := rows.Err(); err != nil { + log.Fatalf("postgres rows: %v", err) + } + + if err := tx.Commit(); err != nil { + log.Fatalf("sqlite commit: %v", err) + } + + log.Printf("migrated %d rows to %s", n, *out) +} diff --git a/deploy/kls-rift.toml b/deploy/kls-rift.toml new file mode 100644 index 0000000..ca7c3e8 --- /dev/null +++ b/deploy/kls-rift.toml @@ -0,0 +1,21 @@ +name = "kls" +node = "rift" +active = true +path = "../kls" + +[build.images] +kls = "Dockerfile" + +[[components]] +name = "kls" +image = "mcr.svc.mcp.metacircular.net:8443/kls:v0.1.0" +network = "mcpnet" +user = "0:0" +restart = "unless-stopped" +ports = ["127.0.0.1:48000:8000"] +volumes = ["/srv/kls:/srv/kls"] +cmd = ["-f", "/srv/kls/kls.conf"] + +[[components.routes]] +port = 443 +mode = "l7" diff --git a/go.mod b/go.mod index 5a72474..644fec4 100644 --- a/go.mod +++ b/go.mod @@ -1,25 +1,33 @@ module git.wntrmute.dev/kyle/kls -go 1.17 +go 1.25.0 require ( git.wntrmute.dev/kyle/goutils v1.7.4 github.com/Masterminds/squirrel v1.5.2 - github.com/google/uuid v1.3.0 - github.com/jackc/pgx/v4 v4.15.0 + github.com/google/uuid v1.6.0 + github.com/jackc/pgx/v4 v4.18.3 + modernc.org/sqlite v1.48.0 ) require ( + github.com/dustin/go-humanize v1.0.1 // indirect github.com/jackc/chunkreader/v2 v2.0.1 // indirect - github.com/jackc/pgconn v1.11.0 // indirect + github.com/jackc/pgconn v1.14.3 // indirect github.com/jackc/pgio v1.0.0 // indirect github.com/jackc/pgpassfile v1.0.0 // indirect - github.com/jackc/pgproto3/v2 v2.2.0 // indirect - github.com/jackc/pgservicefile v0.0.0-20200714003250-2b9c44734f2b // indirect - github.com/jackc/pgtype v1.10.0 // indirect - github.com/jackc/puddle v1.2.1 // indirect + github.com/jackc/pgproto3/v2 v2.3.3 // indirect + github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a // indirect + github.com/jackc/pgtype v1.14.0 // indirect github.com/lann/builder v0.0.0-20180802200727-47ae307949d0 // indirect github.com/lann/ps v0.0.0-20150810152359-62de8c46ede0 // indirect - golang.org/x/crypto v0.0.0-20220314234659-1baeb1ce4c0b // indirect - golang.org/x/text v0.3.6 // indirect + github.com/mattn/go-isatty v0.0.20 // indirect + github.com/ncruces/go-strftime v1.0.0 // indirect + github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect + golang.org/x/crypto v0.20.0 // indirect + golang.org/x/sys v0.42.0 // indirect + golang.org/x/text v0.14.0 // indirect + modernc.org/libc v1.70.0 // indirect + modernc.org/mathutil v1.7.1 // indirect + modernc.org/memory v1.11.0 // indirect ) diff --git a/go.sum b/go.sum index d4411ed..0467d51 100644 --- a/go.sum +++ b/go.sum @@ -9,21 +9,23 @@ github.com/cockroachdb/apd v1.1.0/go.mod h1:8Sl8LxpKi29FqWXR16WEFZRNSz3SoPzUzeMe github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4= github.com/coreos/go-systemd v0.0.0-20190719114852-fd7a80b32e1f/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4= github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY= -github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E= github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY= +github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto= github.com/go-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vbaY= github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A= github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY= github.com/gofrs/uuid v4.0.0+incompatible h1:1SD/1F5pU8p29ybwgQSwpQk+mwdRrXCYuPhW6m+TnJw= github.com/gofrs/uuid v4.0.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM= -github.com/google/certificate-transparency-go v1.0.21/go.mod h1:QeJfpSbVSfYc7RgB3gJFj9cbuQMMchQxrWXz8Ruopmg= +github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e h1:ijClszYn+mADRFY17kjQEVQ1XRhq2/JR1M3sGqeJoxs= +github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e/go.mod h1:boTsfXsheKC2y+lKOCMpSfarhxDeIzfZG1jqGcPl3cA= github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI= -github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I= -github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo= -github.com/hashicorp/go-syslog v1.0.0/go.mod h1:qPfqrKkXGihmCqbJM2mZgkZGvKG1dFdvsLplgctolz4= -github.com/jackc/chunkreader v1.0.0 h1:4s39bBR8ByfqH+DKm8rQA3E1LHZWB9XWcrz8fqaZbe0= +github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0= +github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo= +github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs4luLUK2k= +github.com/hashicorp/golang-lru/v2 v2.0.7/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM= github.com/jackc/chunkreader v1.0.0/go.mod h1:RT6O25fNZIuasFJRyZ4R/Y2BbhasbmZXF9QQ7T3kePo= github.com/jackc/chunkreader/v2 v2.0.0/go.mod h1:odVSm741yZoC3dpHEUXIqA9tQRhFrgOHwnPIn9lDKlk= github.com/jackc/chunkreader/v2 v2.0.1 h1:i+RDz65UE+mmpjTfyz0MoVTnzeYxroil2G82ki7MGG8= @@ -34,8 +36,8 @@ github.com/jackc/pgconn v0.0.0-20190831204454-2fabfa3c18b7/go.mod h1:ZJKsE/KZfsU github.com/jackc/pgconn v1.8.0/go.mod h1:1C2Pb36bGIP9QHGBYCjnyhqu7Rv3sGshaQUvmfGIB/o= github.com/jackc/pgconn v1.9.0/go.mod h1:YctiPyvzfU11JFxoXokUOOKQXQmDMoJL9vJzHH8/2JY= github.com/jackc/pgconn v1.9.1-0.20210724152538-d89c8390a530/go.mod h1:4z2w8XhRbP1hYxkpTuBjTS3ne3J48K83+u0zoyvg2pI= -github.com/jackc/pgconn v1.11.0 h1:HiHArx4yFbwl91X3qqIHtUFoiIfLNJXCQRsnzkiwwaQ= -github.com/jackc/pgconn v1.11.0/go.mod h1:4z2w8XhRbP1hYxkpTuBjTS3ne3J48K83+u0zoyvg2pI= +github.com/jackc/pgconn v1.14.3 h1:bVoTr12EGANZz66nZPkMInAV/KHD2TxH9npjXXgiB3w= +github.com/jackc/pgconn v1.14.3/go.mod h1:RZbme4uasqzybK2RK5c65VsHxoyaml09lx3tXOcO/VM= github.com/jackc/pgio v1.0.0 h1:g12B9UwVnzGhueNavwioyEEpAmqMe1E/BN9ES+8ovkE= github.com/jackc/pgio v1.0.0/go.mod h1:oP+2QK2wFfUWgr+gxjoBH9KGBb31Eio69xUb0w5bYf8= github.com/jackc/pgmock v0.0.0-20190831213851-13a1b77aafa2/go.mod h1:fGZlG77KXmcq05nJLRkk0+p82V8B8Dw8KN2/V9c/OAE= @@ -44,7 +46,6 @@ github.com/jackc/pgmock v0.0.0-20210724152146-4ad1a8207f65 h1:DadwsjnMwFjfWc9y5W github.com/jackc/pgmock v0.0.0-20210724152146-4ad1a8207f65/go.mod h1:5R2h2EEX+qri8jOWMbJCtaPWkrrNc7OHwsp2TCqp7ak= github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM= github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg= -github.com/jackc/pgproto3 v1.1.0 h1:FYYE4yRw+AgI8wXIinMlNjBbp/UitDJwfj5LqqewP1A= github.com/jackc/pgproto3 v1.1.0/go.mod h1:eR5FA3leWg7p9aeAqi37XOTgTIbkABlvcPB3E5rlc78= github.com/jackc/pgproto3/v2 v2.0.0-alpha1.0.20190420180111-c116219b62db/go.mod h1:bhq50y+xrl9n5mRYyCBFKkpRVTLYJVWeCc+mEAI3yXA= github.com/jackc/pgproto3/v2 v2.0.0-alpha1.0.20190609003834-432c2951c711/go.mod h1:uH0AWtUmuShn0bcesswc4aBTWGvw0cAxIJp+6OB//Wg= @@ -52,36 +53,33 @@ github.com/jackc/pgproto3/v2 v2.0.0-rc3/go.mod h1:ryONWYqW6dqSg1Lw6vXNMXoBJhpzvW github.com/jackc/pgproto3/v2 v2.0.0-rc3.0.20190831210041-4c03ce451f29/go.mod h1:ryONWYqW6dqSg1Lw6vXNMXoBJhpzvWKnT95C46ckYeM= github.com/jackc/pgproto3/v2 v2.0.6/go.mod h1:WfJCnwN3HIg9Ish/j3sgWXnAfK8A9Y0bwXYU5xKaEdA= github.com/jackc/pgproto3/v2 v2.1.1/go.mod h1:WfJCnwN3HIg9Ish/j3sgWXnAfK8A9Y0bwXYU5xKaEdA= -github.com/jackc/pgproto3/v2 v2.2.0 h1:r7JypeP2D3onoQTCxWdTpCtJ4D+qpKr0TxvoyMhZ5ns= -github.com/jackc/pgproto3/v2 v2.2.0/go.mod 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golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= -golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= -golang.org/x/sys v0.0.0-20220412211240-33da011f77ad/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.42.0 h1:omrd2nAlyT5ESRdCLYdm3+fMfNFE/+Rf4bDIQImRJeo= +golang.org/x/sys v0.42.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw= golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw= golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo= golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk= golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= golang.org/x/text v0.3.4/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= -golang.org/x/text v0.3.6 h1:aRYxNxv6iGQlyVaZmk6ZgYEDa+Jg18DxebPSrd6bg1M= golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= +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 v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs= golang.org/x/tools v0.0.0-20190425163242-31fd60d6bfdc/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q= @@ -186,6 +193,8 @@ golang.org/x/tools v0.0.0-20190823170909-c4a336ef6a2f/go.mod h1:b+2E5dAYhXwXZwtn golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= golang.org/x/tools v0.0.0-20191029190741-b9c20aec41a5/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= golang.org/x/tools v0.0.0-20200103221440-774c71fcf114/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28= +golang.org/x/tools v0.42.0 h1:uNgphsn75Tdz5Ji2q36v/nsFSfR/9BRFvqhGBaJGd5k= +golang.org/x/tools v0.42.0/go.mod h1:Ma6lCIwGZvHK6XtgbswSoWroEkhugApmsXyrUmBhfr0= golang.org/x/xerrors v0.0.0-20190410155217-1f06c39b4373/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= @@ -196,7 +205,35 @@ gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI= gopkg.in/inconshreveable/log15.v2 v2.0.0-20180818164646-67afb5ed74ec/go.mod h1:aPpfJ7XW+gOuirDoZ8gHhLh3kZ1B08FtV2bbmy7Jv3s= gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= -gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ= -gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo= gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= +gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= +gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg= +modernc.org/cc/v4 v4.27.1 h1:9W30zRlYrefrDV2JE2O8VDtJ1yPGownxciz5rrbQZis= +modernc.org/cc/v4 v4.27.1/go.mod h1:uVtb5OGqUKpoLWhqwNQo/8LwvoiEBLvZXIQ/SmO6mL0= +modernc.org/ccgo/v4 v4.32.0 h1:hjG66bI/kqIPX1b2yT6fr/jt+QedtP2fqojG2VrFuVw= +modernc.org/ccgo/v4 v4.32.0/go.mod h1:6F08EBCx5uQc38kMGl+0Nm0oWczoo1c7cgpzEry7Uc0= +modernc.org/fileutil v1.4.0 h1:j6ZzNTftVS054gi281TyLjHPp6CPHr2KCxEXjEbD6SM= +modernc.org/fileutil v1.4.0/go.mod h1:EqdKFDxiByqxLk8ozOxObDSfcVOv/54xDs/DUHdvCUU= +modernc.org/gc/v2 v2.6.5 h1:nyqdV8q46KvTpZlsw66kWqwXRHdjIlJOhG6kxiV/9xI= +modernc.org/gc/v2 v2.6.5/go.mod h1:YgIahr1ypgfe7chRuJi2gD7DBQiKSLMPgBQe9oIiito= +modernc.org/gc/v3 v3.1.2 h1:ZtDCnhonXSZexk/AYsegNRV1lJGgaNZJuKjJSWKyEqo= +modernc.org/gc/v3 v3.1.2/go.mod h1:HFK/6AGESC7Ex+EZJhJ2Gni6cTaYpSMmU/cT9RmlfYY= +modernc.org/goabi0 v0.2.0 h1:HvEowk7LxcPd0eq6mVOAEMai46V+i7Jrj13t4AzuNks= +modernc.org/goabi0 v0.2.0/go.mod h1:CEFRnnJhKvWT1c1JTI3Avm+tgOWbkOu5oPA8eH8LnMI= +modernc.org/libc v1.70.0 h1:U58NawXqXbgpZ/dcdS9kMshu08aiA6b7gusEusqzNkw= +modernc.org/libc v1.70.0/go.mod h1:OVmxFGP1CI/Z4L3E0Q3Mf1PDE0BucwMkcXjjLntvHJo= +modernc.org/mathutil v1.7.1 h1:GCZVGXdaN8gTqB1Mf/usp1Y/hSqgI2vAGGP4jZMCxOU= +modernc.org/mathutil v1.7.1/go.mod h1:4p5IwJITfppl0G4sUEDtCr4DthTaT47/N3aT6MhfgJg= +modernc.org/memory v1.11.0 h1:o4QC8aMQzmcwCK3t3Ux/ZHmwFPzE6hf2Y5LbkRs+hbI= +modernc.org/memory v1.11.0/go.mod h1:/JP4VbVC+K5sU2wZi9bHoq2MAkCnrt2r98UGeSK7Mjw= +modernc.org/opt v0.1.4 h1:2kNGMRiUjrp4LcaPuLY2PzUfqM/w9N23quVwhKt5Qm8= +modernc.org/opt v0.1.4/go.mod h1:03fq9lsNfvkYSfxrfUhZCWPk1lm4cq4N+Bh//bEtgns= +modernc.org/sortutil v1.2.1 h1:+xyoGf15mM3NMlPDnFqrteY07klSFxLElE2PVuWIJ7w= +modernc.org/sortutil v1.2.1/go.mod h1:7ZI3a3REbai7gzCLcotuw9AC4VZVpYMjDzETGsSMqJE= +modernc.org/sqlite v1.48.0 h1:ElZyLop3Q2mHYk5IFPPXADejZrlHu7APbpB0sF78bq4= +modernc.org/sqlite v1.48.0/go.mod h1:hWjRO6Tj/5Ik8ieqxQybiEOUXy0NJFNp2tpvVpKlvig= +modernc.org/strutil v1.2.1 h1:UneZBkQA+DX2Rp35KcM69cSsNES9ly8mQWD71HKlOA0= +modernc.org/strutil v1.2.1/go.mod h1:EHkiggD70koQxjVdSBM3JKM7k6L0FbGE5eymy9i3B9A= +modernc.org/token v1.1.0 h1:Xl7Ap9dKaEs5kLoOQeQmPWevfnk/DM5qcLcYlA8ys6Y= +modernc.org/token v1.1.0/go.mod h1:UGzOrNV1mAFSEB63lOFHIpNRUVMvYTc6yu1SMY/XTDM= diff --git a/handler.go b/handler.go index 0e8378c..c05eab8 100644 --- a/handler.go +++ b/handler.go @@ -3,6 +3,7 @@ package main import ( "context" "crypto/subtle" + "database/sql" "embed" "fmt" "html/template" @@ -12,11 +13,10 @@ import ( "git.wntrmute.dev/kyle/goutils/config" "git.wntrmute.dev/kyle/kls/links" - "github.com/jackc/pgx/v4/pgxpool" ) type server struct { - db *pgxpool.Pool + db *sql.DB } //go:embed templates/*.tpl @@ -46,7 +46,7 @@ func (srv *server) postURL(w http.ResponseWriter, r *http.Request) { return } - isRawURL := boolean(r.FormValue("rawp")) + stripQuery := boolean(r.FormValue("strip")) url := r.FormValue("value") if len(url) == 0 { @@ -54,7 +54,7 @@ func (srv *server) postURL(w http.ResponseWriter, r *http.Request) { return } - url, err = links.CleanString(url, isRawURL) + url, err = links.CleanString(url, stripQuery) if err != nil { http.Error(w, err.Error(), http.StatusInternalServerError) return diff --git a/links/db.go b/links/db.go index 96f88bd..72dbbe4 100644 --- a/links/db.go +++ b/links/db.go @@ -2,48 +2,38 @@ package links import ( "context" + "database/sql" "fmt" "git.wntrmute.dev/kyle/goutils/config" - "github.com/jackc/pgx/v4/pgxpool" + _ "modernc.org/sqlite" ) const ( - // The keys are all set up as constants to avoid typos and - // runtime surprises. I've prefixed the names with k, which - // perhaps counterintuitively is not for 'kyle' but for 'key'. - kDriver = "DB_ENGINE" - kName = "DB_NAME" - kUser = "DB_USER" - kPass = "DB_PASSWORD" - kHost = "DB_HOST" - kPort = "DB_PORT" - - defaultDriver = "postgres" - defaultName = "kls" - defaultUser = "kls" - defaultPort = "5432" + kDBPath = "DB_PATH" + defaultPath = "kls.db" ) -func connString(user, pass, host, name, port string) string { - return fmt.Sprintf("postgres://%s:%s@%s:%s/%s?sslmode=verify-full", - user, pass, host, port, name) -} +const createTable = `CREATE TABLE IF NOT EXISTS urls ( + id TEXT PRIMARY KEY, + url TEXT NOT NULL, + nurl TEXT NOT NULL, + short TEXT NOT NULL UNIQUE, + created_at TEXT NOT NULL +)` -// Connect will try to open a connection to the database using the -// standard configuration vars, etc. -func Connect(ctx context.Context) (*pgxpool.Pool, error) { - driver := config.GetDefault(kDriver, defaultDriver) - if driver != defaultDriver { - return nil, fmt.Errorf("database: unsupported driver %s", driver) +// Connect opens the SQLite database and ensures the schema exists. +func Connect(ctx context.Context) (*sql.DB, error) { + path := config.GetDefault(kDBPath, defaultPath) + db, err := sql.Open("sqlite", path) + if err != nil { + return nil, fmt.Errorf("database: %w", err) } - user := config.GetDefault(kUser, defaultUser) - pass := config.Get(kPass) - host := config.Get(kHost) - name := config.GetDefault(kName, defaultName) - port := config.GetDefault(kPort, defaultPort) - cstr := connString(user, pass, host, name, port) + if _, err := db.ExecContext(ctx, createTable); err != nil { + db.Close() + return nil, fmt.Errorf("database: schema init: %w", err) + } - return pgxpool.Connect(ctx, cstr) + return db, nil } diff --git a/links/url.go b/links/url.go index 38a7d9f..318f4de 100644 --- a/links/url.go +++ b/links/url.go @@ -2,17 +2,16 @@ package links import ( "context" + "database/sql" "log" "net/url" "time" "github.com/Masterminds/squirrel" "github.com/google/uuid" - "github.com/jackc/pgx/v4" - "github.com/jackc/pgx/v4/pgxpool" ) -var psql = squirrel.StatementBuilder.PlaceholderFormat(squirrel.Dollar) +var sq = squirrel.StatementBuilder.PlaceholderFormat(squirrel.Question) type URL struct { ID string @@ -26,26 +25,27 @@ func (u *URL) Timestamp() string { return u.CreatedAt.Format("2006-01-02 15:04") } -func (u *URL) Store(ctx context.Context, db *pgxpool.Pool) error { - stmt := psql.Insert("urls"). +func (u *URL) Store(ctx context.Context, db *sql.DB) error { + stmt := sq.Insert("urls"). Columns("id", "url", "nurl", "short", "created_at"). - Values(u.ID, u.URL, u.NURL, u.Short, u.CreatedAt) + Values(u.ID, u.URL, u.NURL, u.Short, u.CreatedAt.Format(time.RFC3339)) query, args, err := stmt.ToSql() if err != nil { return err } - _, err = db.Exec(ctx, query, args...) + _, err = db.ExecContext(ctx, query, args...) return err } // Normalize cleans the URL to only the parts we care about. func Normalize(u *url.URL) *url.URL { norm := &url.URL{ - Scheme: u.Scheme, - Host: u.Host, - Path: u.Path, - RawPath: u.RawPath, + Scheme: u.Scheme, + Host: u.Host, + Path: u.Path, + RawPath: u.RawPath, + RawQuery: u.RawQuery, } return norm } @@ -61,18 +61,19 @@ func NormalizeString(s string) (string, error) { } // Clean should scrub out junk from the URL. -func Clean(u *url.URL, keepQuery bool) *url.URL { +func Clean(u *url.URL, stripQuery bool) *url.URL { norm := &url.URL{ Scheme: u.Scheme, Host: u.Host, Path: u.Path, RawPath: u.RawPath, + RawQuery: u.RawQuery, Fragment: u.Fragment, RawFragment: u.RawFragment, } - if keepQuery { - norm.RawQuery = u.RawQuery + if stripQuery { + norm.RawQuery = "" } return norm } @@ -107,7 +108,7 @@ func FromString(s string) (*URL, error) { return New(u), nil } -func Lookup(ctx context.Context, db *pgxpool.Pool, s string) (string, error) { +func Lookup(ctx context.Context, db *sql.DB, s string) (string, error) { u, err := url.Parse(s) if err != nil { return "", nil @@ -115,14 +116,14 @@ func Lookup(ctx context.Context, db *pgxpool.Pool, s string) (string, error) { u = Normalize(u) - stmt := psql.Select("short").From("urls"). + stmt := sq.Select("short").From("urls"). Where(squirrel.Eq{"nurl": u.String()}) query, args, err := stmt.ToSql() if err != nil { return "", err } - row := db.QueryRow(ctx, query, args...) + row := db.QueryRowContext(ctx, query, args...) var short string err = row.Scan(&short) @@ -133,13 +134,13 @@ func Lookup(ctx context.Context, db *pgxpool.Pool, s string) (string, error) { return short, nil } -func StoreURL(ctx context.Context, db *pgxpool.Pool, s string) (string, error) { +func StoreURL(ctx context.Context, db *sql.DB, s string) (string, error) { short, err := Lookup(ctx, db, s) if err == nil { return short, nil } - if err != pgx.ErrNoRows { + if err != sql.ErrNoRows { return "", err } @@ -156,48 +157,50 @@ func StoreURL(ctx context.Context, db *pgxpool.Pool, s string) (string, error) { return u.Short, nil } -func RetrieveURL(ctx context.Context, db *pgxpool.Pool, short string) (string, error) { +func RetrieveURL(ctx context.Context, db *sql.DB, short string) (string, error) { log.Printf("look up url for short code %s", short) - stmt := psql.Select("url").From("urls"). + stmt := sq.Select("url").From("urls"). Where(squirrel.Eq{"short": short}) query, args, err := stmt.ToSql() if err != nil { return "", err } - row := db.QueryRow(ctx, query, args...) - var url string + row := db.QueryRowContext(ctx, query, args...) + var u string - err = row.Scan(&url) + err = row.Scan(&u) if err != nil { return "", err } - return url, nil + return u, nil } -func FetchAll(ctx context.Context, db *pgxpool.Pool) ([]*URL, error) { - stmt := psql.Select("*").From("urls").OrderBy("created_at") +func FetchAll(ctx context.Context, db *sql.DB) ([]*URL, error) { + stmt := sq.Select("id", "url", "nurl", "short", "created_at"). + From("urls").OrderBy("created_at") query, args, err := stmt.ToSql() if err != nil { return nil, err } - rows, err := db.Query(ctx, query, args...) + rows, err := db.QueryContext(ctx, query, args...) if err != nil { return nil, err } + defer rows.Close() var urls []*URL for rows.Next() { u := &URL{} - err = rows.Scan( - &u.ID, - &u.URL, - &u.NURL, - &u.Short, - &u.CreatedAt, - ) + var ts string + err = rows.Scan(&u.ID, &u.URL, &u.NURL, &u.Short, &ts) + if err != nil { + return nil, err + } + + u.CreatedAt, err = time.Parse(time.RFC3339, ts) if err != nil { return nil, err } diff --git a/main.go b/main.go index 2b99b4e..b3ae164 100644 --- a/main.go +++ b/main.go @@ -6,6 +6,7 @@ import ( "log" "net" "net/http" + "os" "git.wntrmute.dev/kyle/goutils/config" "git.wntrmute.dev/kyle/goutils/die" @@ -29,10 +30,15 @@ func main() { srv := &server{db: db} http.Handle("/", srv) - addr := net.JoinHostPort( - config.Get("HTTP_ADDR"), - config.GetDefault("HTTP_PORT", "8000"), - ) + var addr string + if port := os.Getenv("PORT"); port != "" { + addr = ":" + port + } else { + addr = net.JoinHostPort( + config.Get("HTTP_ADDR"), + config.GetDefault("HTTP_PORT", "8000"), + ) + } log.Print("listening on ", addr) log.Fatal(http.ListenAndServe(addr, nil)) } diff --git a/schema.sql b/schema.sql index 3e4d178..42271bb 100644 --- a/schema.sql +++ b/schema.sql @@ -1,7 +1,7 @@ -CREATE TABLE urls ( - id UUID PRIMARY KEY DEFAULT gen_random_uuid(), - url TEXT NOT NULL, - nurl TEXT NOT NULL, -- normalized url - short TEXT NOT NULL UNIQUE, - created_at TIMESTAMPTZ NOT NULL DEFAULT NOW() +CREATE TABLE IF NOT EXISTS urls ( + id TEXT PRIMARY KEY, + url TEXT NOT NULL, + nurl TEXT NOT NULL, + short TEXT NOT NULL UNIQUE, + created_at TEXT NOT NULL ); diff --git a/templates/index.tpl b/templates/index.tpl index 9e5d387..35e44fe 100644 --- a/templates/index.tpl +++ b/templates/index.tpl @@ -20,8 +20,8 @@ {{ end }}

- - + +