mirror of https://github.com/v2fly/v2ray-core.git
79 lines
1.6 KiB
Go
79 lines
1.6 KiB
Go
package control
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import (
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"net/http"
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"net/url"
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"os"
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"strings"
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"time"
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"github.com/v2fly/v2ray-core/v4/common"
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"github.com/v2fly/v2ray-core/v4/common/buf"
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)
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type FetchCommand struct{}
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func (c *FetchCommand) Name() string {
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return "fetch"
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}
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func (c *FetchCommand) Description() Description {
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return Description{
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Short: "Fetch resources",
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Usage: []string{"v2ctl fetch <url>"},
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}
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}
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func (c *FetchCommand) Execute(args []string) error {
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if len(args) < 1 {
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return newError("empty url")
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}
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content, err := FetchHTTPContent(args[0])
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if err != nil {
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return newError("failed to read HTTP response").Base(err)
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}
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os.Stdout.Write(content)
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return nil
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}
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// FetchHTTPContent dials https for remote content
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func FetchHTTPContent(target string) ([]byte, error) {
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parsedTarget, err := url.Parse(target)
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if err != nil {
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return nil, newError("invalid URL: ", target).Base(err)
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}
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if s := strings.ToLower(parsedTarget.Scheme); s != "http" && s != "https" {
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return nil, newError("invalid scheme: ", parsedTarget.Scheme)
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}
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client := &http.Client{
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Timeout: 30 * time.Second,
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}
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resp, err := client.Do(&http.Request{
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Method: "GET",
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URL: parsedTarget,
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Close: true,
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})
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if err != nil {
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return nil, newError("failed to dial to ", target).Base(err)
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}
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defer resp.Body.Close()
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if resp.StatusCode != 200 {
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return nil, newError("unexpected HTTP status code: ", resp.StatusCode)
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}
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content, err := buf.ReadAllToBytes(resp.Body)
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if err != nil {
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return nil, newError("failed to read HTTP response").Base(err)
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}
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return content, nil
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}
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func init() {
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common.Must(RegisterCommand(&FetchCommand{}))
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}
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