80 lines
2.7 KiB
Go
80 lines
2.7 KiB
Go
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package xai
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import (
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"net/http"
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"os"
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"strings"
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"golang.org/x/mod/semver"
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)
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// Fixed Grok Build / CLI-chat-proxy client identity.
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// These values are intentionally pinned in-binary (not scraped from live CLI).
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// Operators may bump the version via XAI_GROK_CLI_VERSION without a release.
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const (
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// CLIProxyHost is the hostname that requires the official CLI identity headers.
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CLIProxyHost = "cli-chat-proxy.grok.com"
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// CLIStableVersion is the known-good minimum client version accepted by cli-chat-proxy.
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CLIStableVersion = "0.2.93"
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// CLIVersionEnv is the optional operator override for CLIStableVersion.
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CLIVersionEnv = "XAI_GROK_CLI_VERSION"
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// CLITokenAuth is required by cli-chat-proxy for Grok Build OAuth tokens.
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CLITokenAuth = "xai-grok-cli"
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// CLIClientIdentifier is the x-grok-client-identifier value used by Grok shell/CLI.
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CLIClientIdentifier = "grok-shell"
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// CLIClientMode is used by billing / quota probes on the CLI surface.
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CLIClientMode = "cli"
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)
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// ResolveCLIVersion returns a supported CLI client version.
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// Empty or invalid overrides fall back to CLIClientVersion (the pinned
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// preferred client pin in billing.go). CLIStableVersion is only the minimum
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// accepted by IsSupportedCLIVersion, not the default identity we advertise.
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func ResolveCLIVersion() string {
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version := strings.TrimSpace(os.Getenv(CLIVersionEnv))
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if !IsSupportedCLIVersion(version) {
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return CLIClientVersion
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}
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return version
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}
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// IsSupportedCLIVersion reports whether version is a valid semver string at or
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// above CLIStableVersion (prereleases below a higher release are rejected when
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// they compare less than the stable pin).
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func IsSupportedCLIVersion(version string) bool {
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canonical := "v" + version
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minimum := "v" + CLIStableVersion
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return semver.IsValid(canonical) &&
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semver.Canonical(canonical) == canonical &&
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semver.Compare(canonical, minimum) >= 0
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}
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// CLIUserAgent builds the workspace-style User-Agent for a CLI client version.
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func CLIUserAgent(version string) string {
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if strings.TrimSpace(version) == "" {
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version = CLIClientVersion
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}
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return "xai-grok-workspace/" + version
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}
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// ApplyCLIProxyHeaders stamps the fixed Grok CLI identity when the request
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// targets cli-chat-proxy. Direct api.x.ai traffic is left unchanged.
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func ApplyCLIProxyHeaders(req *http.Request) {
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if req == nil || req.URL == nil || !strings.EqualFold(strings.TrimSpace(req.URL.Hostname()), CLIProxyHost) {
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return
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}
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if req.Header == nil {
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req.Header = make(http.Header)
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}
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version := ResolveCLIVersion()
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req.Header.Set("X-XAI-Token-Auth", CLITokenAuth)
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req.Header.Set("x-grok-client-version", version)
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req.Header.Set("x-grok-client-identifier", CLIClientIdentifier)
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req.Header.Set("User-Agent", CLIUserAgent(version))
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}
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