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get.go
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get.go
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package config
import (
"context"
"fmt"
"io/ioutil"
"net/http"
"github.com/blang/semver"
"github.com/google/go-github/v29/github"
"github.com/rancher/channelserver/pkg/model"
"github.com/rancher/wrangler/pkg/data/convert"
"sigs.k8s.io/yaml"
)
func getURLs(ctx context.Context, urls ...Source) ([]byte, int, error) {
var (
bytes []byte
err error
index int
)
for i, url := range urls {
index = i
bytes, err = get(ctx, url)
if err == nil {
break
}
}
return bytes, index, err
}
func get(ctx context.Context, url Source) ([]byte, error) {
content, err := ioutil.ReadFile(url.URL())
if err == nil {
return content, nil
}
req, err := http.NewRequestWithContext(ctx, http.MethodGet, url.URL(), nil)
if err != nil {
return nil, err
}
resp, err := http.DefaultClient.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
return nil, fmt.Errorf("status %v", resp.Status)
}
return ioutil.ReadAll(resp.Body)
}
func GetChannelsConfig(ctx context.Context, content []byte, subKey string) (*model.ChannelsConfig, error) {
var (
data = map[string]interface{}{}
config = &model.ChannelsConfig{}
)
if subKey == "" {
return config, yaml.Unmarshal(content, config)
}
if err := yaml.Unmarshal(content, &data); err != nil {
return nil, err
}
data, _ = data[subKey].(map[string]interface{})
if data == nil {
return nil, fmt.Errorf("failed to find key %s in config", subKey)
}
return config, convert.ToObj(data, config)
}
func GetReleasesConfig(content []byte, channelServerVersion, subKey string) (*model.ReleasesConfig, error) {
var (
allReleases model.ReleasesConfig
availableReleases model.ReleasesConfig
data map[string]interface{}
)
if subKey == "" {
if err := yaml.Unmarshal(content, &allReleases); err != nil {
return nil, err
}
} else {
if err := yaml.Unmarshal(content, &data); err != nil {
return nil, err
}
data, _ = data[subKey].(map[string]interface{})
if err := convert.ToObj(data, &allReleases); err != nil {
return nil, err
}
}
// no server version specified, show all releases
if channelServerVersion == "" {
return &allReleases, nil
}
availableReleases = model.ReleasesConfig{}
serverVersion, err := semver.ParseTolerant(channelServerVersion)
if err != nil {
return nil, err
}
for _, release := range allReleases.Releases {
minServerVer, err := semver.ParseTolerant(release.ChannelServerMinVersion)
if err != nil {
continue
}
maxServerVer, err := semver.ParseTolerant(release.ChannelServerMaxVersion)
if err != nil {
continue
}
if serverVersion.GE(minServerVer) && serverVersion.LE(maxServerVer) {
availableReleases.Releases = append(availableReleases.Releases, release)
}
}
return &availableReleases, nil
}
func GetGHReleases(ctx context.Context, client *github.Client, owner, repo string) ([]string, error) {
var (
opt = &github.ListOptions{}
allReleases []string
)
for {
releases, resp, err := client.Repositories.ListReleases(ctx, owner, repo, opt)
if err != nil {
return nil, err
}
for _, release := range releases {
if release.GetTagName() != "" && !release.GetPrerelease() {
allReleases = append(allReleases, *release.TagName)
}
}
if resp.NextPage == 0 {
break
}
opt.Page = resp.NextPage
}
return allReleases, nil
}
func GetAppDefaultsConfig(content []byte, subKey, appName string) (*model.AppDefaultsConfig, error) {
var (
data map[string]interface{}
allConfigs model.AppDefaultsConfig
availableConfigs model.AppDefaultsConfig
)
if subKey == "" {
if err := yaml.Unmarshal(content, &allConfigs); err != nil {
return nil, err
}
} else {
if err := yaml.Unmarshal(content, &data); err != nil {
return nil, err
}
subData, ok := data[subKey].(map[string]interface{})
if !ok {
return nil, fmt.Errorf("content at key %s expected to be map[string]interface{}, found %T instead", subKey, data[subKey])
}
if err := convert.ToObj(subData, &allConfigs); err != nil {
return nil, err
}
}
// no app name is specified, return all AppDefaultsConfigs
if appName == "" {
return &allConfigs, nil
}
for _, appDefault := range allConfigs.AppDefaults {
if appDefault.AppName == appName {
availableConfigs.AppDefaults = append(availableConfigs.AppDefaults, appDefault)
break
}
}
return &availableConfigs, nil
}