glance/internal/feed/dockerhub.go
2024-08-27 05:19:35 +01:00

103 lines
2.5 KiB
Go

package feed
import (
"fmt"
"net/http"
"strings"
)
type dockerHubRepositoryTagsResponse struct {
Results []dockerHubRepositoryTagResponse `json:"results"`
}
type dockerHubRepositoryTagResponse struct {
Name string `json:"name"`
LastPushed string `json:"tag_last_pushed"`
}
const dockerHubOfficialRepoTagURLFormat = "https://hub.docker.com/_/%s/tags?name=%s"
const dockerHubRepoTagURLFormat = "https://hub.docker.com/r/%s/tags?name=%s"
const dockerHubTagsURLFormat = "https://hub.docker.com/v2/namespaces/%s/repositories/%s/tags"
const dockerHubSpecificTagURLFormat = "https://hub.docker.com/v2/namespaces/%s/repositories/%s/tags/%s"
func fetchLatestDockerHubRelease(request *ReleaseRequest) (*AppRelease, error) {
nameParts := strings.Split(request.Repository, "/")
if len(nameParts) > 2 {
return nil, fmt.Errorf("invalid repository name: %s", request.Repository)
} else if len(nameParts) == 1 {
nameParts = []string{"library", nameParts[0]}
}
tagParts := strings.SplitN(nameParts[1], ":", 2)
var requestURL string
if len(tagParts) == 2 {
requestURL = fmt.Sprintf(dockerHubSpecificTagURLFormat, nameParts[0], tagParts[0], tagParts[1])
} else {
requestURL = fmt.Sprintf(dockerHubTagsURLFormat, nameParts[0], nameParts[1])
}
httpRequest, err := http.NewRequest("GET", requestURL, nil)
if err != nil {
return nil, err
}
if request.Token != nil {
httpRequest.Header.Add("Authorization", "Bearer "+(*request.Token))
}
var tag *dockerHubRepositoryTagResponse
if len(tagParts) == 1 {
response, err := decodeJsonFromRequest[dockerHubRepositoryTagsResponse](defaultClient, httpRequest)
if err != nil {
return nil, err
}
if len(response.Results) == 0 {
return nil, fmt.Errorf("no tags found for repository: %s", request.Repository)
}
tag = &response.Results[0]
} else {
response, err := decodeJsonFromRequest[dockerHubRepositoryTagResponse](defaultClient, httpRequest)
if err != nil {
return nil, err
}
tag = &response
}
var repo string
var displayName string
var notesURL string
if len(tagParts) == 1 {
repo = nameParts[1]
} else {
repo = tagParts[0]
}
if nameParts[0] == "library" {
displayName = repo
notesURL = fmt.Sprintf(dockerHubOfficialRepoTagURLFormat, repo, tag.Name)
} else {
displayName = nameParts[0] + "/" + repo
notesURL = fmt.Sprintf(dockerHubRepoTagURLFormat, displayName, tag.Name)
}
return &AppRelease{
Source: ReleaseSourceDockerHub,
NotesUrl: notesURL,
Name: displayName,
Version: tag.Name,
TimeReleased: parseRFC3339Time(tag.LastPushed),
}, nil
}