46 lines
1.3 KiB
Go
46 lines
1.3 KiB
Go
package main
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import (
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"regexp"
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)
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var prePlusMatch = regexp.MustCompile(`([^@\+]*)\+?(.*)@.*`)
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var periodsMatch = regexp.MustCompile(`[\.]`)
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var postAtMatch = regexp.MustCompile(`[^@]*(@.*)`)
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func emailStrip(email string) string {
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postAt := postAtMatch.ReplaceAllString(email, `$1`)
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prePlus := prePlusMatch.ReplaceAllString(email, `$1`)
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strippedEmail := periodsMatch.ReplaceAllString(prePlus, ``) + postAt
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return strippedEmail
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}
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var https = regexp.MustCompile(`(https?://)`)
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var trailingSlash = regexp.MustCompile(`(/*$)`)
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func domainStrip(domain string) string {
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noSlash := trailingSlash.ReplaceAllString(domain, ``)
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noProtocol := https.ReplaceAllString(noSlash, ``)
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return noProtocol
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}
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var pathMatch = regexp.MustCompile(`(https?://[^/]*)`)
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func pathStrip(url string) string {
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strippedPath := pathMatch.ReplaceAllString(url, ``)
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return strippedPath
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}
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var httpsUrl = regexp.MustCompile(`^https?://`)
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func isHttpsUrl(in string) bool {
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// Admittedly, this isn't the greatest URL checker. But it does what we need.
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// I don't care if the user gives an invalid URL, I just want to make sure
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// they don't do any XSS shenanigans. Hopefully, enforcing a https?:// prefix
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// solves this. If this function returns false, prefix with "http://"
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return len(httpsUrl.FindAllString(in, -1)) != 0
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}
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