func getAllFrontPages(DocRoot string) (PageList []string, ErrorResult error) {
PageList = make([]string, 0)
PagesDir := filepath.Join(DocRoot, "pages")
files, err := ioutil.ReadDir(PagesDir)
if err != nil {
return nil, err
}
for _, f := range files {
if f.IsDir() {
DocName := malkovich.FolderNameToDocName(f.Name())
pageDirectory := getDocDirectory(DocRoot, DocName)
PageDB, err := openPageDatabase(DocName, pageDirectory)
if err == nil {
exists, value := readPageAttribute(PageDB, `IsOnFrontPage`)
valueAsBool, _ := strconv.ParseBool(value)
if (exists == true) && (valueAsBool == true) {
PageList = append(PageList, f.Name())
}
}
closePageDatabase(PageDB)
}
}
return PageList, nil
}
func getPageInfoAsJsonData(DocRoot string, PageList []string) (Data string, ErrorResult error) {
var pageSummaryData PageSummaryData
var TextBuffer string
var DocName string
pageInfo := struct {
PageName string `json:"pagename"`
PageLocation string `json:"href"`
FirstHeading string `json:"firstHeading"`
FirstImage string `json:"firstImage"`
FirstParagraph string `json:"firstParagraph"`
}{}
TextBuffer = `{"pages":[`
for _, fileName := range PageList {
DocName = malkovich.FolderNameToDocName(fileName)
pageInfo.PageName = DocName
pageInfo.PageLocation = GetDocLink(fileName)
pageInfo.FirstHeading = ""
pageInfo.FirstImage = ""
pageInfo.FirstParagraph = ""
DocName := fileName
summaryFilePath := getDocPreviewFilePath(DocRoot, DocName)
jsonData, err := readPageSummary(summaryFilePath)
if err != nil {
log.Info("ERROR1: " + err.Error())
}
if err == nil {
err = json.Unmarshal(jsonData, &pageSummaryData)
if err != nil {
log.Info("ERROR2: " + err.Error())
}
if err == nil {
pageInfo.FirstHeading = pageSummaryData.PageTitle
pageInfo.FirstImage = pageSummaryData.FirstImage
pageInfo.FirstParagraph = pageSummaryData.FirstParagraph
}
}
jsonData, err = json.Marshal(pageInfo)
if err != nil {
panic(err.Error())
}
TextBuffer = TextBuffer + string(jsonData) + `,`
}
TextBuffer = strings.TrimSuffix(TextBuffer, ",")
TextBuffer = TextBuffer + `]}`
return TextBuffer, nil
}
func UpdatePageSummary(docName, PageFilePath, PreviewFilePath string) error {
var pageSummaryData PageSummaryData
html, err := readPageAsHtml(docName, PageFilePath)
if err != nil {
return err
}
htmlreader := bytes.NewReader(html)
//htmlString := string(html)
//log.Info("HtmlString " + htmlString)
doc, err := gq.NewDocumentFromReader(htmlreader)
if err != nil {
return err
}
var SelectedNodes *gq.Selection
//======= work out the document heading ========
DocTitle := ""
if DocTitle == "" {
SelectedNodes = doc.Find("h1, h2, h3, h4").First()
if len(SelectedNodes.Nodes) == 1 {
DocTitle = strings.TrimSpace(SelectedNodes.Text())
}
}
if DocTitle == "" {
DocTitle = docName
}
//DocTitle = base64.StdEncoding.EncodeToString([]byte(DocTitle))
DocTitle = malkovich.FolderNameToDocName(DocTitle)
pageSummaryData.PageTitle = DocTitle
//======== look for an image =========
DocImage := ""
SelectedNodes = doc.Find("img").First()
if len(SelectedNodes.Nodes) == 1 {
for _, nodeAttr := range SelectedNodes.Nodes[0].Attr {
if nodeAttr.Key == "src" {
DocImage = nodeAttr.Val
break
}
}
}
//DocImage = base64.StdEncoding.EncodeToString([]byte(DocImage))
pageSummaryData.FirstImage = DocImage
//======== look for the first paragraph =========
FirstParagraph := ""
SelectedNodes = doc.Find("p").First()
if len(SelectedNodes.Nodes) == 1 {
FirstParagraph = strings.TrimSpace(SelectedNodes.Text())
}
//TODO:HIGH Maybe limit to a set number of charactors here.
//FirstParagraph = base64.StdEncoding.EncodeToString([]byte(FirstParagraph))
pageSummaryData.FirstParagraph = FirstParagraph
jsonData, err := json.Marshal(pageSummaryData)
if err != nil {
return err
}
// TODO:MED what would the best file permissions be here?
err = ioutil.WriteFile(PreviewFilePath, jsonData, os.FileMode(0644))
if err != nil {
panic(err.Error())
}
return nil
}
