52 lines
1.4 KiB
Go
52 lines
1.4 KiB
Go
package Tools
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import (
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"net/http"
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"sort"
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"strconv"
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"strings"
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)
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func GetRequestLanguage(request *http.Request) (resultLangs Languages) {
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languageCodeForm := request.FormValue(`lang`)
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languageCodeHeader := request.Header.Get(`Accept-Language`)
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if languageCodeForm != `` && ((len(languageCodeForm) == 2) || (len(languageCodeForm) == 5 && strings.Contains(languageCodeForm, `-`))) {
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resultLangs = make(Languages, 1)
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resultLangs[0].Factor = 1.0
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resultLangs[0].Language = strings.ToLower(languageCodeForm)
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return
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}
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if languageCodeHeader == `` {
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resultLangs = make(Languages, 1)
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resultLangs[0].Factor = 1.0
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resultLangs[0].Language = defaultLanguage
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return
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}
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values := strings.Split(languageCodeHeader, `,`)
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langs := make(Languages, len(values))
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for n, langData := range values {
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if factorData := strings.Split(langData, `;q=`); len(factorData) == 2 {
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if factor, errFactor := strconv.ParseFloat(factorData[1], 32); errFactor != nil {
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langs[n] = Language{}
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langs[n].Language = strings.ToLower(strings.Trim(factorData[0], ` `))
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langs[n].Factor = 1.0
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} else {
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langs[n] = Language{}
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langs[n].Language = strings.ToLower(strings.Trim(factorData[0], ` `))
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langs[n].Factor = float32(factor)
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}
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} else {
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langs[n] = Language{}
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langs[n].Language = strings.ToLower(strings.Trim(langData, ` `))
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langs[n].Factor = 1.0
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}
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}
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sort.Sort(langs)
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resultLangs = langs
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return
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}
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