primeira entrega

This commit is contained in:
serxoz 2025-02-19 20:39:05 +01:00
commit bd6d9d8b7a
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# Contenedor para compilar
FROM golang:alpine AS builder
RUN apk add --update git
# Configurar Go modules y compilar
WORKDIR /go/src/tr4ck.net/xenerador_contrasinais/
COPY . .
RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags="-w -s" -o app .
# Contenedor para ejecutar
FROM alpine:latest
RUN addgroup -S user && adduser -S user -G user
WORKDIR /srv/xenerador_contrasinais/
COPY --from=builder /go/src/tr4ck.net/xenerador_contrasinais/app .
COPY templates/ ./templates/
COPY palabras.txt .
USER user
ENV GIN_MODE=release
EXPOSE 8080
CMD ["./app"]

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# Xenerador de contrasinais
Xenera frases en galego para usar como contrasinais do estilo: correct horse battery staple.
Seguindo as ensinanzas de [xkcd](https://xkcd.com/936/).
## Build:
```
docker build -t contrasinais .
```
## Run:
```
docker run -d \
-p 8080:8080 \
--name contrasinais \
--restart=unless-stopped \
contrasinais
```

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module tr4ck.net/xenerador_contrasinais
go 1.23.6
require (
github.com/bytedance/sonic v1.12.9 // indirect
github.com/bytedance/sonic/loader v0.2.3 // indirect
github.com/cloudwego/base64x v0.1.5 // indirect
github.com/cloudwego/iasm v0.2.0 // indirect
github.com/gabriel-vasile/mimetype v1.4.8 // indirect
github.com/gin-contrib/sse v1.0.0 // indirect
github.com/gin-gonic/gin v1.10.0 // 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 v10.25.0 // indirect
github.com/goccy/go-json v0.10.5 // indirect
github.com/json-iterator/go v1.1.12 // indirect
github.com/klauspost/cpuid/v2 v2.2.9 // indirect
github.com/leodido/go-urn v1.4.0 // indirect
github.com/mattn/go-isatty v0.0.20 // 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 v2.2.3 // indirect
github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
github.com/ugorji/go/codec v1.2.12 // indirect
golang.org/x/arch v0.14.0 // indirect
golang.org/x/crypto v0.33.0 // indirect
golang.org/x/net v0.35.0 // indirect
golang.org/x/sys v0.30.0 // indirect
golang.org/x/text v0.22.0 // indirect
google.golang.org/protobuf v1.36.5 // indirect
gopkg.in/yaml.v3 v3.0.1 // indirect
)

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github.com/bytedance/sonic v1.12.9 h1:Od1BvK55NnewtGaJsTDeAOSnLVO2BTSLOe0+ooKokmQ=
github.com/bytedance/sonic v1.12.9/go.mod h1:uVvFidNmlt9+wa31S1urfwwthTWteBgG0hWuoKAXTx8=
github.com/bytedance/sonic/loader v0.1.1/go.mod h1:ncP89zfokxS5LZrJxl5z0UJcsk4M4yY2JpfqGeCtNLU=
github.com/bytedance/sonic/loader v0.2.3 h1:yctD0Q3v2NOGfSWPLPvG2ggA2kV6TS6s4wioyEqssH0=
github.com/bytedance/sonic/loader v0.2.3/go.mod h1:N8A3vUdtUebEY2/VQC0MyhYeKUFosQU6FxH2JmUe6VI=
github.com/cloudwego/base64x v0.1.5 h1:XPciSp1xaq2VCSt6lF0phncD4koWyULpl5bUxbfCyP4=
github.com/cloudwego/base64x v0.1.5/go.mod h1:0zlkT4Wn5C6NdauXdJRhSKRlJvmclQ1hhJgA0rcu/8w=
github.com/cloudwego/iasm v0.2.0 h1:1KNIy1I1H9hNNFEEH3DVnI4UujN+1zjpuk6gwHLTssg=
github.com/cloudwego/iasm v0.2.0/go.mod h1:8rXZaNYT2n95jn+zTI1sDr+IgcD2GVs0nlbbQPiEFhY=
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/gabriel-vasile/mimetype v1.4.8 h1:FfZ3gj38NjllZIeJAmMhr+qKL8Wu+nOoI3GqacKw1NM=
github.com/gabriel-vasile/mimetype v1.4.8/go.mod h1:ByKUIKGjh1ODkGM1asKUbQZOLGrPjydw3hYPU2YU9t8=
github.com/gin-contrib/sse v1.0.0 h1:y3bT1mUWUxDpW4JLQg/HnTqV4rozuW4tC9eFKTxYI9E=
github.com/gin-contrib/sse v1.0.0/go.mod h1:zNuFdwarAygJBht0NTKiSi3jRf6RbqeILZ9Sp6Slhe0=
github.com/gin-gonic/gin v1.10.0 h1:nTuyha1TYqgedzytsKYqna+DfLos46nTv2ygFy86HFU=
github.com/gin-gonic/gin v1.10.0/go.mod h1:4PMNQiOhvDRa013RKVbsiNwoyezlm2rm0uX/T7kzp5Y=
github.com/go-playground/locales v0.14.1 h1:EWaQ/wswjilfKLTECiXz7Rh+3BjFhfDFKv/oXslEjJA=
github.com/go-playground/locales v0.14.1/go.mod h1:hxrqLVvrK65+Rwrd5Fc6F2O76J/NuW9t0sjnWqG1slY=
github.com/go-playground/universal-translator v0.18.1 h1:Bcnm0ZwsGyWbCzImXv+pAJnYK9S473LQFuzCbDbfSFY=
github.com/go-playground/universal-translator v0.18.1/go.mod h1:xekY+UJKNuX9WP91TpwSH2VMlDf28Uj24BCp08ZFTUY=
github.com/go-playground/validator/v10 v10.25.0 h1:5Dh7cjvzR7BRZadnsVOzPhWsrwUr0nmsZJxEAnFLNO8=
github.com/go-playground/validator/v10 v10.25.0/go.mod h1:GGzBIJMuE98Ic/kJsBXbz1x/7cByt++cQ+YOuDM5wus=
github.com/goccy/go-json v0.10.5 h1:Fq85nIqj+gXn/S5ahsiTlK3TmC85qgirsdTP/+DeaC4=
github.com/goccy/go-json v0.10.5/go.mod h1:oq7eo15ShAhp70Anwd5lgX2pLfOS3QCiwU/PULtXL6M=
github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
github.com/klauspost/cpuid/v2 v2.0.9/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg=
github.com/klauspost/cpuid/v2 v2.2.9 h1:66ze0taIn2H33fBvCkXuv9BmCwDfafmiIVpKV9kKGuY=
github.com/klauspost/cpuid/v2 v2.2.9/go.mod h1:rqkxqrZ1EhYM9G+hXH7YdowN5R5RGN6NK4QwQ3WMXF8=
github.com/knz/go-libedit v1.10.1/go.mod h1:MZTVkCWyz0oBc7JOWP3wNAzd002ZbM/5hgShxwh4x8M=
github.com/leodido/go-urn v1.4.0 h1:WT9HwE9SGECu3lg4d/dIA+jxlljEa1/ffXKmRjqdmIQ=
github.com/leodido/go-urn v1.4.0/go.mod h1:bvxc+MVxLKB4z00jd1z+Dvzr47oO32F/QSNjSBOlFxI=
github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
github.com/pelletier/go-toml/v2 v2.2.3 h1:YmeHyLY8mFWbdkNWwpr+qIL2bEqT0o95WSdkNHvL12M=
github.com/pelletier/go-toml/v2 v2.2.3/go.mod h1:MfCQTFTvCcUyyvvwm1+G6H/jORL20Xlb6rzQu9GuUkc=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
github.com/stretchr/objx v0.5.2/go.mod h1:FRsXN1f5AsAjCGJKqEizvkpNtU+EGNCLh3NxZ/8L+MA=
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
github.com/twitchyliquid64/golang-asm v0.15.1 h1:SU5vSMR7hnwNxj24w34ZyCi/FmDZTkS4MhqMhdFk5YI=
github.com/twitchyliquid64/golang-asm v0.15.1/go.mod h1:a1lVb/DtPvCB8fslRZhAngC2+aY1QWCk3Cedj/Gdt08=
github.com/ugorji/go/codec v1.2.12 h1:9LC83zGrHhuUA9l16C9AHXAqEV/2wBQ4nkvumAE65EE=
github.com/ugorji/go/codec v1.2.12/go.mod h1:UNopzCgEMSXjBc6AOMqYvWC1ktqTAfzJZUZgYf6w6lg=
golang.org/x/arch v0.14.0 h1:z9JUEZWr8x4rR0OU6c4/4t6E6jOZ8/QBS2bBYBm4tx4=
golang.org/x/arch v0.14.0/go.mod h1:FEVrYAQjsQXMVJ1nsMoVVXPZg6p2JE2mx8psSWTDQys=
golang.org/x/crypto v0.33.0 h1:IOBPskki6Lysi0lo9qQvbxiQ+FvsCC/YWOecCHAixus=
golang.org/x/crypto v0.33.0/go.mod h1:bVdXmD7IV/4GdElGPozy6U7lWdRXA4qyRVGJV57uQ5M=
golang.org/x/net v0.35.0 h1:T5GQRQb2y08kTAByq9L4/bz8cipCdA8FbRTXewonqY8=
golang.org/x/net v0.35.0/go.mod h1:EglIi67kWsHKlRzzVMUD93VMSWGFOMSZgxFjparz1Qk=
golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.30.0 h1:QjkSwP/36a20jFYWkSue1YwXzLmsV5Gfq7Eiy72C1uc=
golang.org/x/sys v0.30.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
golang.org/x/text v0.22.0 h1:bofq7m3/HAFvbF51jz3Q9wLg3jkvSPuiZu/pD1XwgtM=
golang.org/x/text v0.22.0/go.mod h1:YRoo4H8PVmsu+E3Ou7cqLVH8oXWIHVoX0jqUWALQhfY=
google.golang.org/protobuf v1.36.5 h1:tPhr+woSbjfYvY6/GPufUoYizxw1cF/yFoxJ2fmpwlM=
google.golang.org/protobuf v1.36.5/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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=
nullprogram.com/x/optparse v1.0.0/go.mod h1:KdyPE+Igbe0jQUrVfMqDMeJQIJZEuyV7pjYmp6pbG50=
rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=

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<!DOCTYPE html>
<html lang="gz">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Xenerador de contrasinais</title>
<style>
body {
font-family: 'Poppins', sans-serif;
background: linear-gradient(135deg, #121212, #1e1e1e);
color: #d1d1d1;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
min-height: 100vh;
margin: 0;
}
.container {
background: #242424;
padding: 20px;
border-radius: 10px;
box-shadow: 0px 4px 15px rgba(0, 0, 0, 0.3);
text-align: center;
max-width: 420px;
width: 100%;
margin-top: 25px;
border: 1px solid #3a3a3a;
}
h1 {
font-size: 1.8rem;
margin-bottom: 15px;
color: #00bcd4;
text-shadow: 0px 0px 5px rgba(0, 188, 212, 0.5);
font-weight: 600;
}
.password-box {
background: #333;
padding: 12px;
border-radius: 6px;
font-size: 1.4rem;
font-weight: bold;
color: #ffffff;
word-break: break-all;
text-align: center;
margin-bottom: 15px;
border: 1px solid #00bcd4;
}
.button {
background: #00bcd4;
color: #ffffff;
border: none;
padding: 10px 16px;
border-radius: 6px;
cursor: pointer;
font-size: 1rem;
transition: background 0.3s, box-shadow 0.3s;
font-weight: 500;
}
.button:hover {
background: #008ba3;
box-shadow: 0px 2px 8px rgba(0, 188, 212, 0.5);
}
a {
color: #00bcd4;
text-decoration: none;
font-weight: 500;
transition: color 0.3s;
}
a:hover {
color: #008ba3;
text-decoration: underline;
}
footer {
margin-top: auto;
padding: 10px;
text-align: center;
font-size: 0.9rem;
color: #a1a1a1;
font-weight: 400;
}
</style>
</head>
<body>
<div class="container">
<h1>
Xenerador de contrasinais
</h1>
<p>
Xenera frases en galego para usar como contrasinais do estilo:
<a href="https://xkcd.com/936/">correct horse battery staple</a>.
</p>
<div class="password-box">
{{ .password }}
</div>
<form>
<label>Cantidade de palabras:</label><br>
<input type="text" id="num" name="num" value="4"><br>
<label>Separador:</label><br>
<input type="text" id="sep" name="sep" value=""><br><br>
<input class="button" type="submit" value="xenerar">
</form>
</div>
</body>
<footer>
Feito con ❤️ por <a href="https://tr4ck.net/~sergio">serxoz</a> no 2025.
</footer>
</html>

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package main
import (
"bufio"
"math/rand"
"net/http"
"os"
"regexp"
"strconv"
"github.com/gin-gonic/gin"
)
// devolve un array co listado de palabros do arquivo palabras.txt
func read_words() []string {
readFile, err := os.Open("palabras.txt")
if err != nil {
panic(err)
}
defer readFile.Close()
fileScanner := bufio.NewScanner(readFile)
fileScanner.Split(bufio.ScanLines)
var fileLines []string
for fileScanner.Scan() {
fileLines = append(fileLines, fileScanner.Text())
}
return fileLines
}
// devolve unha palabra random
func random_word(list []string) string {
return list[rand.Intn(len(list))]
}
// monta a frase a usar como contrasinal
func generate_password(list []string, cantidade int, separator string) string {
phrase := ""
for i := range cantidade {
if i == cantidade-1 {
// ultimo elemento
phrase = phrase + random_word(list)
} else {
phrase = phrase + random_word(list) + separator
}
}
return phrase
}
// xenera resposta
type resposta struct {
code int
chave string
valor string
}
func generate_response(c *gin.Context, listado []string) resposta {
resp := resposta{}
num := c.Query("num")
sep := c.Query("sep")
if num == "" {
num = "4" // cantidade por defecto
}
if sep == "" {
sep = " " // separador por defecto
}
isNumber := regexp.MustCompile(`^\d*$`)
if !isNumber.MatchString(num) {
resp.code = 400
resp.chave = "error"
resp.valor = "O parámetro 'num' ten que ser un número."
} else {
// xenera unha frase de 'num' palabras
n, _ := strconv.Atoi(num) // o erro non fai falta, foi comprobado no regexp
if n >= 128 {
// limitase a sacho
n = 128
}
resp.code = 200
resp.chave = "password"
resp.valor = generate_password(listado, n, sep)
}
// resp.code sera o 200 e logo chave e valor o JSON do gin.H
// c.JSON(200, gin.H{
// "password": generate_password(listado, n, sep),
// })
return resp
}
func main() {
// lemos a memoria o arquivo de palabras
listado := read_words()
// arrancamos gin
r := gin.Default()
r.LoadHTMLGlob("templates/*")
r.GET("/ping", func(c *gin.Context) {
c.JSON(200, gin.H{
"message": "pong",
})
})
// /pass?num=4&sep=-
r.GET("/pass", func(c *gin.Context) {
resp := generate_response(c, listado)
c.JSON(resp.code, gin.H{
resp.chave: resp.valor,
})
})
r.GET("/", func(c *gin.Context) {
resp := generate_response(c, listado)
c.HTML(http.StatusOK, "index.tmpl", gin.H{
resp.chave: resp.valor,
})
})
r.Run() //listen and serve on 0.0.0.0:8080
}