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c44e7a3e63
This adds support for the passthrough on build, push, login, and search. Revamp the integration test to cover these cases and make it more robust. Use backticks instead of quoted strings for backslash-heavy string contstands. Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
74 lines
2.5 KiB
Go
74 lines
2.5 KiB
Go
package dockerversion
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import (
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"fmt"
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"runtime"
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"github.com/docker/docker/api/server/httputils"
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"github.com/docker/docker/pkg/parsers/kernel"
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"github.com/docker/docker/pkg/useragent"
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"golang.org/x/net/context"
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)
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// DockerUserAgent is the User-Agent the Docker client uses to identify itself.
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// In accordance with RFC 7231 (5.5.3) is of the form:
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// [docker client's UA] UpstreamClient([upstream client's UA])
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func DockerUserAgent(ctx context.Context) string {
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httpVersion := make([]useragent.VersionInfo, 0, 6)
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httpVersion = append(httpVersion, useragent.VersionInfo{Name: "docker", Version: Version})
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httpVersion = append(httpVersion, useragent.VersionInfo{Name: "go", Version: runtime.Version()})
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httpVersion = append(httpVersion, useragent.VersionInfo{Name: "git-commit", Version: GitCommit})
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if kernelVersion, err := kernel.GetKernelVersion(); err == nil {
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httpVersion = append(httpVersion, useragent.VersionInfo{Name: "kernel", Version: kernelVersion.String()})
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}
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httpVersion = append(httpVersion, useragent.VersionInfo{Name: "os", Version: runtime.GOOS})
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httpVersion = append(httpVersion, useragent.VersionInfo{Name: "arch", Version: runtime.GOARCH})
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dockerUA := useragent.AppendVersions("", httpVersion...)
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upstreamUA := getUserAgentFromContext(ctx)
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if len(upstreamUA) > 0 {
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ret := insertUpstreamUserAgent(upstreamUA, dockerUA)
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return ret
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}
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return dockerUA
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}
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// getUserAgentFromContext returns the previously saved user-agent context stored in ctx, if one exists
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func getUserAgentFromContext(ctx context.Context) string {
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var upstreamUA string
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if ctx != nil {
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var ki interface{} = ctx.Value(httputils.UAStringKey)
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if ki != nil {
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upstreamUA = ctx.Value(httputils.UAStringKey).(string)
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}
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}
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return upstreamUA
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}
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// escapeStr returns s with every rune in charsToEscape escaped by a backslash
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func escapeStr(s string, charsToEscape string) string {
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var ret string
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for _, currRune := range s {
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appended := false
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for _, escapeableRune := range charsToEscape {
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if currRune == escapeableRune {
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ret += `\` + string(currRune)
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appended = true
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break
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}
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}
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if !appended {
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ret += string(currRune)
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}
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}
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return ret
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}
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// insertUpstreamUserAgent adds the upstream client useragent to create a user-agent
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// string of the form:
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// $dockerUA UpstreamClient($upstreamUA)
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func insertUpstreamUserAgent(upstreamUA string, dockerUA string) string {
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charsToEscape := `();\`
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upstreamUAEscaped := escapeStr(upstreamUA, charsToEscape)
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return fmt.Sprintf("%s UpstreamClient(%s)", dockerUA, upstreamUAEscaped)
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}
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