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https://github.com/MetaCubeX/mihomo.git
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chore: update default headers in xhttp
This commit is contained in:
wwqgtxx
@@ -0,0 +1,249 @@
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package xhttp
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import (
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"math"
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"strconv"
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"strings"
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"time"
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"github.com/metacubex/http"
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"github.com/metacubex/randv2"
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)
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// The Chrome version generator will suffer from deviation of a normal distribution.
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func ChromeVersion() int {
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// Start from Chrome 144, released on 2026.1.13.
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var startVersion int = 144
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var timeStart int64 = time.Date(2026, 1, 13, 0, 0, 0, 0, time.UTC).Unix() / 86400
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var timeCurrent int64 = time.Now().Unix() / 86400
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var timeDiff int = int((timeCurrent - timeStart - 35)) - int(math.Floor(math.Pow(randv2.Float64(), 2)*105))
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return startVersion + (timeDiff / 35) // It's 31.15 currently.
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}
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var safariMinorMap [25]int = [25]int{0, 0, 0, 1, 1,
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1, 2, 2, 2, 2, 3, 3, 3, 4, 4,
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4, 5, 5, 5, 5, 5, 6, 6, 6, 6}
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// The following version generators use deterministic generators, but with the distribution scaled by a curve.
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func CurlVersion() string {
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// curl 8.0.0 was released on 20/03/2023.
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var timeCurrent int64 = time.Now().Unix() / 86400
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var timeStart int64 = time.Date(2023, 3, 20, 0, 0, 0, 0, time.UTC).Unix() / 86400
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var timeDiff int = int((timeCurrent - timeStart - 60)) - int(math.Floor(math.Pow(randv2.Float64(), 2)*165))
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var minorValue int = int(timeDiff / 57) // The release cadence is actually 56.67 days.
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return "8." + strconv.Itoa(minorValue) + ".0"
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}
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func FirefoxVersion() int {
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// Firefox 128 ESR was released on 09/07/2023.
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var timeCurrent int64 = time.Now().Unix() / 86400
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var timeStart int64 = time.Date(2024, 7, 29, 0, 0, 0, 0, time.UTC).Unix() / 86400
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var timeDiff = timeCurrent - timeStart - 25 - int64(math.Floor(math.Pow(randv2.Float64(), 2)*50))
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return int(timeDiff/30) + 128
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}
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func SafariVersion() string {
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var anchoredTime time.Time = time.Now()
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var releaseYear int = anchoredTime.Year()
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var splitPoint time.Time = time.Date(releaseYear, 9, 23, 0, 0, 0, 0, time.UTC)
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var delayedDays = int(math.Floor(math.Pow(randv2.Float64(), 3) * 75))
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splitPoint = splitPoint.AddDate(0, 0, delayedDays)
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if anchoredTime.Compare(splitPoint) < 0 {
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releaseYear--
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splitPoint = time.Date(releaseYear, 9, 23, 0, 0, 0, 0, time.UTC)
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splitPoint = splitPoint.AddDate(0, 0, delayedDays)
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}
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var minorVersion = safariMinorMap[(anchoredTime.Unix()-splitPoint.Unix())/1296000]
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return strconv.Itoa(releaseYear-1999) + "." + strconv.Itoa(minorVersion)
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}
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// The full Chromium brand GREASE implementation
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var clientHintGreaseNA = []string{" ", "(", ":", "-", ".", "/", ")", ";", "=", "?", "_"}
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var clientHintVersionNA = []string{"8", "99", "24"}
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var clientHintShuffle3 = [][3]int{{0, 1, 2}, {0, 2, 1}, {1, 0, 2}, {1, 2, 0}, {2, 0, 1}, {2, 1, 0}}
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var clientHintShuffle4 = [][4]int{
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{0, 1, 2, 3}, {0, 1, 3, 2}, {0, 2, 1, 3}, {0, 2, 3, 1}, {0, 3, 1, 2}, {0, 3, 2, 1},
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{1, 0, 2, 3}, {1, 0, 3, 2}, {1, 2, 0, 3}, {1, 2, 3, 0}, {1, 3, 0, 2}, {1, 3, 2, 0},
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{2, 0, 1, 3}, {2, 0, 3, 1}, {2, 1, 0, 3}, {2, 1, 3, 0}, {2, 3, 0, 1}, {2, 3, 1, 0},
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{3, 0, 1, 2}, {3, 0, 2, 1}, {3, 1, 0, 2}, {3, 1, 2, 0}, {3, 2, 0, 1}, {3, 2, 1, 0}}
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func getGreasedChInvalidBrand(seed int) string {
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return "\"Not" + clientHintGreaseNA[seed%len(clientHintGreaseNA)] + "A" + clientHintGreaseNA[(seed+1)%len(clientHintGreaseNA)] + "Brand\";v=\"" + clientHintVersionNA[seed%len(clientHintVersionNA)] + "\""
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}
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func getGreasedChOrder(brandLength int, seed int) []int {
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switch brandLength {
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case 1:
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return []int{0}
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case 2:
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return []int{seed % brandLength, (seed + 1) % brandLength}
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case 3:
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return clientHintShuffle3[seed%len(clientHintShuffle3)][:]
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default:
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return clientHintShuffle4[seed%len(clientHintShuffle4)][:]
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}
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//return []int{}
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}
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func getUngreasedChUa(majorVersion int, forkName string) []string {
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// Set the capacity to 4, the maximum allowed brand size, so Go will never allocate memory twice
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baseChUa := make([]string, 0, 4)
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baseChUa = append(baseChUa, getGreasedChInvalidBrand(majorVersion),
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"\"Chromium\";v=\""+strconv.Itoa(majorVersion)+"\"")
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switch forkName {
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case "chrome":
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baseChUa = append(baseChUa, "\"Google Chrome\";v=\""+strconv.Itoa(majorVersion)+"\"")
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case "edge":
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baseChUa = append(baseChUa, "\"Microsoft Edge\";v=\""+strconv.Itoa(majorVersion)+"\"")
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}
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return baseChUa
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}
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func getGreasedChUa(majorVersion int, forkName string) string {
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ungreasedCh := getUngreasedChUa(majorVersion, forkName)
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shuffleMap := getGreasedChOrder(len(ungreasedCh), majorVersion)
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shuffledCh := make([]string, len(ungreasedCh))
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for i, e := range shuffleMap {
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shuffledCh[e] = ungreasedCh[i]
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}
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return strings.Join(shuffledCh, ", ")
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}
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// The code below provides a coherent default browser user agent string based on a CPU-seeded PRNG.
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var CurlUA = "curl/" + CurlVersion()
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var AnchoredFirefoxVersion = strconv.Itoa(FirefoxVersion())
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var FirefoxUA = "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:" + AnchoredFirefoxVersion + ".0) Gecko/20100101 Firefox/" + AnchoredFirefoxVersion + ".0"
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var SafariUA = "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/" + SafariVersion() + " Safari/605.1.15"
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// Chromium browsers.
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var AnchoredChromeVersion = ChromeVersion()
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var ChromeUA = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/" + strconv.Itoa(AnchoredChromeVersion) + ".0.0.0 Safari/537.36"
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var ChromeUACH = getGreasedChUa(AnchoredChromeVersion, "chrome")
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var MSEdgeUA = ChromeUA + "Edg/" + strconv.Itoa(AnchoredChromeVersion) + ".0.0.0"
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var MSEdgeUACH = getGreasedChUa(AnchoredChromeVersion, "edge")
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func applyMasqueradedHeaders(header http.Header, browser string, variant string) {
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// Browser-specific.
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switch browser {
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case "chrome":
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header["Sec-CH-UA"] = []string{ChromeUACH}
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header["Sec-CH-UA-Mobile"] = []string{"?0"}
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header["Sec-CH-UA-Platform"] = []string{"\"Windows\""}
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header["DNT"] = []string{"1"}
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header.Set("User-Agent", ChromeUA)
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header.Set("Accept-Language", "en-US,en;q=0.9")
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case "edge":
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header["Sec-CH-UA"] = []string{MSEdgeUACH}
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header["Sec-CH-UA-Mobile"] = []string{"?0"}
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header["Sec-CH-UA-Platform"] = []string{"\"Windows\""}
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header["DNT"] = []string{"1"}
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header.Set("User-Agent", MSEdgeUA)
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header.Set("Accept-Language", "en-US,en;q=0.9")
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case "firefox":
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header.Set("User-Agent", FirefoxUA)
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header["DNT"] = []string{"1"}
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header.Set("Accept-Language", "en-US,en;q=0.5")
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case "safari":
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header.Set("User-Agent", SafariUA)
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header.Set("Accept-Language", "en-US,en;q=0.9")
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case "golang":
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// Expose the default net/http header.
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header.Del("User-Agent")
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return
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case "curl":
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header.Set("User-Agent", CurlUA)
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return
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}
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// Context-specific.
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switch variant {
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case "nav":
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if header.Get("Cache-Control") == "" {
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switch browser {
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case "chrome", "edge":
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header.Set("Cache-Control", "max-age=0")
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}
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}
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header.Set("Upgrade-Insecure-Requests", "1")
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if header.Get("Accept") == "" {
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switch browser {
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case "chrome", "edge":
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header.Set("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7")
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case "firefox", "safari":
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header.Set("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8")
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}
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}
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header.Set("Sec-Fetch-Site", "none")
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header.Set("Sec-Fetch-Mode", "navigate")
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switch browser {
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case "safari":
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default:
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header.Set("Sec-Fetch-User", "?1")
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}
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header.Set("Sec-Fetch-Dest", "document")
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header.Set("Priority", "u=0, i")
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case "ws":
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header.Set("Sec-Fetch-Mode", "websocket")
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switch browser {
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case "safari":
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// Safari is NOT web-compliant here!
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header.Set("Sec-Fetch-Dest", "websocket")
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default:
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header.Set("Sec-Fetch-Dest", "empty")
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}
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header.Set("Sec-Fetch-Site", "same-origin")
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if header.Get("Cache-Control") == "" {
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header.Set("Cache-Control", "no-cache")
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}
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if header.Get("Pragma") == "" {
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header.Set("Pragma", "no-cache")
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}
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if header.Get("Accept") == "" {
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header.Set("Accept", "*/*")
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}
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case "fetch":
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header.Set("Sec-Fetch-Mode", "cors")
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header.Set("Sec-Fetch-Dest", "empty")
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header.Set("Sec-Fetch-Site", "same-origin")
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if header.Get("Priority") == "" {
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switch browser {
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case "chrome", "edge":
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header.Set("Priority", "u=1, i")
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case "firefox":
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header.Set("Priority", "u=4")
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case "safari":
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header.Set("Priority", "u=3, i")
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}
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}
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if header.Get("Cache-Control") == "" {
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header.Set("Cache-Control", "no-cache")
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}
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if header.Get("Pragma") == "" {
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header.Set("Pragma", "no-cache")
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}
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if header.Get("Accept") == "" {
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header.Set("Accept", "*/*")
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}
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}
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}
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func TryDefaultHeadersWith(header http.Header, variant string) {
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// The global UA special value handler for transports. Used to be called HandleTransportUASettings.
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// Just a FYI to whoever needing to fix this piece of code after some spontaneous event, I tried to make the two methods separate to let the code be cleaner and more organized.
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if len(header.Values("User-Agent")) < 1 {
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applyMasqueradedHeaders(header, "chrome", variant)
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} else {
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switch header.Get("User-Agent") {
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case "chrome":
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applyMasqueradedHeaders(header, "chrome", variant)
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case "firefox":
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applyMasqueradedHeaders(header, "firefox", variant)
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case "safari":
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applyMasqueradedHeaders(header, "safari", variant)
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case "edge":
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applyMasqueradedHeaders(header, "edge", variant)
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case "curl":
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applyMasqueradedHeaders(header, "curl", variant)
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case "golang":
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applyMasqueradedHeaders(header, "golang", variant)
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}
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}
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}
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@@ -99,23 +99,7 @@ func (c *Config) GetRequestHeader() http.Header {
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for k, v := range c.Headers {
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h.Set(k, v)
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}
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if h.Get("User-Agent") == "" {
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h.Set("User-Agent", "Mozilla/5.0")
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}
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if h.Get("Accept") == "" {
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h.Set("Accept", "*/*")
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}
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if h.Get("Accept-Language") == "" {
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h.Set("Accept-Language", "en-US,en;q=0.9")
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}
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if h.Get("Cache-Control") == "" {
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h.Set("Cache-Control", "no-cache")
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}
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if h.Get("Pragma") == "" {
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h.Set("Pragma", "no-cache")
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}
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TryDefaultHeadersWith(h, "fetch")
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return h
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}
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