func (h *handle) findRecord(w http.ResponseWriter, r *http.Request) (rec record.Record, matched bool) {
h.RLock()
defer h.RUnlock()
// 1. try remote server via media-url
// 2. try virtual image configuration from TOML
// 3. try file map from scanned directory and the generated CSV file
// 4. try to find a pattern in the URL which might look like an image size: 420x230
// 5. print not found
var path = r.URL.Path[1:]
dir, file := filepath.Split(path)
if vis, ok := h.virtualImages[dir]; ok {
for _, vi := range vis {
if vi.regex != nil {
matched = vi.regex.MatchString(file)
if matched {
rec = record.NewRecordFields(h.pattern, path, vi.Width, vi.Height)
return
}
} else {
matched = true
rec = record.NewRecordFields(h.pattern, path, vi.Width, vi.Height)
return
}
}
}
rec, matched = h.fileMap[path]
if !matched && len(path) > 0 && path[0] != '/' {
rec, matched = h.fileMap["/"+path]
}
if false == matched {
if false == common.IsImage(path) {
return
}
if width, height := common.FileSizeFromPath(path); width > 0 && height > 0 {
matched = true
rec = record.NewRecordFields(h.pattern, path, width, height)
}
return
}
return
}
func newHandle(ctx *cli.Context) *handle {
csvFile := ctx.String("csv")
var rec [][]string
if csvFile != "" {
rec = record.GetCSVContent(csvFile)
}
h := &handle{
proxy: newProxy(ctx),
fileMap: make(map[string]record.Record),
pattern: ctx.String("img-pattern"),
}
h.Lock()
defer h.Unlock()
if vif := ctx.String("img-config"); vif != "" {
var err error
if h.virtualImages, err = parseVirtualImageConfigFile(vif); err != nil {
common.InfoErr("File %s contains error:\n%s\n", vif, err)
}
}
h.fileMap["favicon.ico"] = record.NewRecordFields("icon", "favicon.ico", 16, 16)
for _, row := range rec {
rec, err := record.NewRecord(h.pattern, row...)
if err != nil {
common.InfoErr("File %s contains error: %s\n", csvFile, err)
}
rec.Path = ctx.String("url-prefix") + rec.Path
h.fileMap[rec.Path] = rec
}
h.length = len(rec)
return h
}
