repochecker/*-inspector: Refactor file opening

repochecker/file-inspector/zip.go

@@ -3,19 +3,37 @@ package main
 import (
 	"archive/zip"
 	"fmt"
+	"io"
 	"log"
 
 	"srs.epita.fr/fic-server/admin/sync"
 	"srs.epita.fr/fic-server/libfic"
 )
 
-func checkZip(path string, file *fic.EFile, exceptions *sync.CheckExceptions) (errs []error) {
-	r, err := zip.OpenReader(path)
+func checkZip(file *fic.EFile, exceptions *sync.CheckExceptions) (errs []error) {
+	fd, closer, err := sync.GetFile(sync.GlobalImporter, file.GetOrigin())
 	if err != nil {
-		log.Printf("Unable to open %q: %s", path, err.Error())
+		log.Printf("Unable to open %q: %s", file.GetOrigin(), err.Error())
+		return
+	}
+	defer closer()
+
+	fdat, ok := fd.(io.ReaderAt)
+	if !ok {
+		log.Println("The current reader doesn't allow me to check this archive")
+	}
+
+	size, err := sync.GetFileSize(sync.GlobalImporter, file.GetOrigin())
+	if err != nil {
+		log.Printf("Unable to calculate size of %q: %s", file.GetOrigin(), err.Error())
+		return
+	}
+
+	r, err := zip.NewReader(fdat, size)
+	if err != nil {
+		log.Printf("Unable to open %q: %s", file.GetOrigin(), err.Error())
 		return
 	}
-	defer r.Close()
 
 	if len(r.File) < 2 {
 		if !exceptions.HasException(":one-file-tarball") {