helpers.go

package main

import (
	"crypto/md5"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"net/http"
	"net/url"
	"strings"

	"github.com/gin-gonic/gin"
	"zxq.co/ripple/hanayo/modules/bbcode"
	tp "zxq.co/ripple/hanayo/modules/top-passwords"
)

//go:generate go run scripts/generate_mappings.go -g
//go:generate go run scripts/top_passwords.go

func cmd5(s string) string {
	return fmt.Sprintf("%x", md5.Sum([]byte(s)))
}

func validatePassword(p string) string {
	if len(p) < 8 {
		return "Your password is too short! It must be at least 8 characters long."
	}

	for _, k := range tp.TopPasswords {
		if k == p {
			return "Your password is one of the most common passwords on the entire internet. No way we're letting you use that!"
		}
	}

	return ""
}

func recaptchaCheck(c *gin.Context) bool {
	f := make(url.Values)
	f.Add("secret", config.RecaptchaPrivate)
	f.Add("response", c.PostForm("g-recaptcha-response"))
	f.Add("remoteip", clientIP(c))

	req, err := http.Post("https://www.google.com/recaptcha/api/siteverify",
		"application/x-www-form-urlencoded", strings.NewReader(f.Encode()))
	if err != nil {
		c.Error(err)
		return false
	}

	data, err := ioutil.ReadAll(req.Body)
	if err != nil {
		c.Error(err)
		return false
	}

	var e struct {
		Success bool `json:"success"`
	}
	err = json.Unmarshal(data, &e)
	if err != nil {
		c.Error(err)
		return false
	}

	return e.Success
}

func parseBBCode(c *gin.Context) {
	body, err := ioutil.ReadAll(c.Request.Body)
	if err != nil {
		c.Error(err)
		c.String(200, "Error")
		return
	}
	d := bbcode.Compile(string(body))
	c.String(200, d)
}

func mustCSRFGenerate(u int) string {
	v, err := CSRF.Generate(u)
	if err != nil {
		panic(err)
	}
	return v
}

var blogRedirectMap = map[string]string{
	"/posts/moving-to-a-new-server":                                      "https://blog.ripple.moe/moving-to-a-new-server-11155949edca",
	"/posts/ripple-qa-3":                                                 "https://blog.ripple.moe/ripple-q-a-3-28c9851f42b3",
	"/posts/hanayo-is-now-the-ripple-website":                            "https://blog.ripple.moe/hanayo-is-now-the-ripple-website-3bcfaab60c4f",
	"/posts/ripple-qa-2":                                                 "https://blog.ripple.moe/ripple-q-a-2-1204be5ffeef",
	"/posts/hanayo-is-live":                                              "https://blog.ripple.moe/hanayo-is-live-still-not-replacing-the-official-site-f2b751a5baf7",
	"/posts/ripple-qa-1":                                                 "https://blog.ripple.moe/ripple-q-a-1-51181dd8df65",
	"/posts/why-am-i-randomly-gaining-losing-pp":                         "https://blog.ripple.moe/why-am-i-randomly-gaining-losing-pp-595aedfdc5db",
	"/posts/more-love-for-donors":                                        "https://blog.ripple.moe/more-love-for-donors-96c889a9d95f",
	"/posts/happy-birthday-ripple":                                       "https://blog.ripple.moe/happy-birthday-ripple-fbc4bbc47936",
	"/posts/going-back-open-source":                                      "https://blog.ripple.moe/going-back-open-source-a53469e15658",
	"/posts/the-useless-things-we-make-during-weekends-series-continues": "https://blog.ripple.moe/the-useless-things-we-make-during-weekends-series-continues-1a06671ff5c2",
	"/posts/performance-points-pp":                                       "https://blog.ripple.moe/performance-points-pp-d02e0353ad81",
	"/posts/why-are-you-introducing-so-many-bugs-its-not-like-we-asked-for-them": "https://blog.ripple.moe/why-are-you-introducing-so-many-bugs-its-not-like-we-asked-for-them-c650a8ea9667",
	"/posts/going-closed-source":       "https://blog.ripple.moe/going-closed-source-5c0a991f581f",
	"/posts/changes-in-administration": "https://blog.ripple.moe/changes-in-administration-983114dc6332",
	"/posts/its-dangerous-to-go-alone": "https://blog.ripple.moe/its-dangerous-to-go-alone-ef7fa98f2975",
	"/posts/we-got-a-blog":             "https://blog.ripple.moe/we-got-a-blog-81a0af62b410",
}

func blogRedirect(c *gin.Context) {
	a := c.Param("url")
	red := blogRedirectMap[a]
	if red == "" {
		red = "https://blog.ripple.moe"
	}
	c.Redirect(301, red)
}