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|
package config
import (
"crypto/tls"
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"net/url"
"strings"
"github.com/network-quality/goresponsiveness/utilities"
"golang.org/x/net/http2"
)
type ConfigUrls struct {
SmallUrl string `json:"small_https_download_url"`
LargeUrl string `json:"large_https_download_url"`
UploadUrl string `json:"https_upload_url"`
}
type Config struct {
Version int
Urls ConfigUrls `json:"urls"`
Source string
Test_Endpoint string
}
func (c *Config) Get(configHost string, configPath string) error {
configTransport := http2.Transport{}
configTransport.TLSClientConfig = &tls.Config{InsecureSkipVerify: true}
configClient := &http.Client{Transport: &configTransport}
// Extraneous /s in URLs is normally okay, but the Apple CDN does not
// like them. Make sure that we put exactly one (1) / between the host
// and the path.
if !strings.HasPrefix(configPath, "/") {
configPath = "/" + configPath
}
c.Source = fmt.Sprintf("https://%s%s", configHost, configPath)
resp, err := configClient.Get(c.Source)
if err != nil {
return fmt.Errorf(
"Error: Could not connect to configuration host %s: %v\n",
configHost,
err,
)
}
jsonConfig, err := ioutil.ReadAll(resp.Body)
if err != nil {
return fmt.Errorf(
"Error: Could not read configuration content downloaded from %s: %v\n",
c.Source,
err,
)
}
err = json.Unmarshal(jsonConfig, c)
if err != nil {
return fmt.Errorf(
"Error: Could not parse configuration returned from %s: %v\n",
c.Source,
err,
)
}
//if len(c.Test_Endpoint) != 0 {
if false {
tempUrl, err := url.Parse(c.Urls.LargeUrl)
if err != nil {
return fmt.Errorf("Error parsing large_https_download_url: %v", err)
}
c.Urls.LargeUrl = tempUrl.Scheme + "://" + c.Test_Endpoint + "/" + tempUrl.Path
tempUrl, err = url.Parse(c.Urls.SmallUrl)
if err != nil {
return fmt.Errorf("Error parsing small_https_download_url: %v", err)
}
c.Urls.SmallUrl = tempUrl.Scheme + "://" + c.Test_Endpoint + "/" + tempUrl.Path
tempUrl, err = url.Parse(c.Urls.UploadUrl)
if err != nil {
return fmt.Errorf("Error parsing https_upload_url: %v", err)
}
c.Urls.UploadUrl = tempUrl.Scheme + "://" + c.Test_Endpoint + "/" + tempUrl.Path
}
return nil
}
func (c *Config) String() string {
return fmt.Sprintf(
"Version: %d\nSmall URL: %s\nLarge URL: %s\nUpload URL: %s\nEndpoint: %s\n",
c.Version,
c.Urls.SmallUrl,
c.Urls.LargeUrl,
c.Urls.UploadUrl,
c.Test_Endpoint,
)
}
func (c *Config) IsValid() error {
if parsedUrl, err := url.ParseRequestURI(c.Urls.LargeUrl); err != nil ||
parsedUrl.Scheme != "https" {
return fmt.Errorf(
"Configuration url large_https_download_url is invalid: %s",
utilities.Conditional(
len(c.Urls.LargeUrl) != 0,
c.Urls.LargeUrl,
"Missing",
),
)
}
if parsedUrl, err := url.ParseRequestURI(c.Urls.SmallUrl); err != nil ||
parsedUrl.Scheme != "https" {
return fmt.Errorf(
"Configuration url small_https_download_url is invalid: %s",
utilities.Conditional(
len(c.Urls.SmallUrl) != 0,
c.Urls.SmallUrl,
"Missing",
),
)
}
if parsedUrl, err := url.ParseRequestURI(c.Urls.UploadUrl); err != nil ||
parsedUrl.Scheme != "https" {
return fmt.Errorf(
"Configuration url https_upload_url is invalid: %s",
utilities.Conditional(
len(c.Urls.UploadUrl) != 0,
c.Urls.UploadUrl,
"Missing",
),
)
}
return nil
}
|
