补充实现细节

pkg/core/page.go

@@ -1,9 +1,78 @@
 package core
 
-type PageContent struct {
-	meta PageMeta
+import (
+	"errors"
+	"fmt"
+	"os"
+	"strings"
+)
+
+type PageDomain struct {
+	*ServerMeta
+
+	baseDomain    string
+	defaultBranch string
 }
 
-func (p *PageContent) GetMeta(domain, path string) (*PageMeta, error) {
-
+func NewPageDomain(meta *ServerMeta, baseDomain, defaultBranch string) *PageDomain {
+	return &PageDomain{
+		baseDomain:    baseDomain,
+		defaultBranch: defaultBranch,
+		ServerMeta:    meta,
+	}
+}
+
+type PageDomainContent struct {
+	*PageMetaContent
+
+	Owner string
+	Repo  string
+	Path  string
+}
+
+func (m *PageDomainContent) CacheKey() string {
+	return fmt.Sprintf("%s/%s/%s%s", m.Owner, m.Repo, m.CommitID, m.Path)
+}
+
+func (p *PageDomain) ParseDomainMeta(domain, path, branch string) (*PageDomainContent, error) {
+	if branch == "" {
+		branch = p.defaultBranch
+	}
+
+	rel := &PageDomainContent{}
+	if !strings.HasSuffix(domain, "."+p.baseDomain) {
+		return nil, os.ErrNotExist
+	}
+
+	rel.Owner = strings.TrimSuffix(domain, "."+p.baseDomain)
+	pathS := strings.Split(strings.TrimPrefix(path, "/"), "/")
+	repo := pathS[0]
+	defaultRepo := rel.Owner + "." + p.baseDomain
+	if repo == "" {
+		// 回退到默认仓库
+		rel.Repo = defaultRepo
+	}
+
+	meta, err := p.GetMeta(rel.Owner, rel.Repo, branch)
+	if err != nil && !errors.Is(err, os.ErrNotExist) {
+		return nil, err
+	}
+	if err == nil {
+		rel.Path = "/" + strings.Join(pathS[1:], "/")
+		rel.PageMetaContent = meta
+		return rel, nil
+	}
+	if defaultRepo == rel.Repo {
+		return nil, os.ErrNotExist
+	}
+	if meta, err := p.GetMeta(rel.Owner, defaultRepo, branch); err == nil {
+		rel.PageMetaContent = meta
+		rel.Repo = defaultRepo
+		rel.Path = "/" + strings.Join(pathS, "/")
+		return rel, nil
+	}
+	if strings.HasSuffix(path, "/") {
+		rel.Path = rel.Path + "/index.html"
+	}
+	return nil, os.ErrNotExist
 }