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files.go
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files.go
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package shuffle
/*
Handles files for Shuffle. Uses ID's to reference everything
*/
import (
"archive/zip"
"bytes"
"context"
"crypto/sha256"
"encoding/base64"
"encoding/json"
"errors"
"fmt"
"io"
"io/ioutil"
"log"
"net/http"
"net/url"
"os"
"sort"
"strconv"
"strings"
"time"
"github.com/google/go-github/v28/github"
uuid "github.com/satori/go.uuid"
)
var basepath = os.Getenv("SHUFFLE_FILE_LOCATION")
var orgFileBucket = "shuffle_org_files"
var maxFileSize = 10000000 // raw 10mb max filesize on cloud
func init() {
if len(os.Getenv("SHUFFLE_ORG_BUCKET")) > 0 {
orgFileBucket = os.Getenv("SHUFFLE_ORG_BUCKET")
} else {
// Using standard bucket
}
log.Printf("[DEBUG] Inside Files Init with org bucket name %#v", orgFileBucket)
}
func fileAuthentication(request *http.Request) (string, error) {
executionId, ok := request.URL.Query()["execution_id"]
if ok && len(executionId) > 0 {
ctx := GetContext(request)
workflowExecution, err := GetWorkflowExecution(ctx, executionId[0])
if err != nil {
log.Printf("[ERROR] Couldn't find execution ID from '%s'", executionId)
return "", err
}
apikey := request.Header.Get("Authorization")
if !strings.HasPrefix(apikey, "Bearer ") {
log.Printf("[ERROR} Apikey doesn't start with bearer (2)")
return "", errors.New("No auth key found")
}
apikeyCheck := strings.Split(apikey, " ")
if len(apikeyCheck) != 2 {
log.Printf("[ERROR] Invalid format for apikey (2)")
return "", errors.New("No space in authkey")
}
// This is annoying af and is done because of maxlength lol
newApikey := apikeyCheck[1]
if newApikey != workflowExecution.Authorization {
//log.Printf("[ERROR] Bad apikey for execution %s. %s vs %s", executionId[0], apikey, workflowExecution.Authorization)
log.Printf("[ERROR] Bad apikey for execution %s.", executionId[0])
//%s vs %s", executionId[0], apikey, workflowExecution.Authorization)
return "", errors.New("Bad authorization key")
}
//log.Printf("[INFO] Authorization is correct for execution %s!", executionId[0])
//%s vs %s. Setting Org", executionId, apikey, workflowExecution.Authorization)
if len(workflowExecution.ExecutionOrg) > 0 {
return workflowExecution.ExecutionOrg, nil
} else if len(workflowExecution.Workflow.ExecutingOrg.Id) > 0 {
return workflowExecution.ExecutionOrg, nil
} else {
log.Printf("[ERROR] Couldn't find org for workflow execution, but auth was correct.")
}
}
return "", errors.New("No execution id specified")
}
// https://golangcode.com/check-if-a-file-exists/
func fileExists(filename string) bool {
info, err := os.Stat(filename)
if os.IsNotExist(err) {
return false
}
return !info.IsDir()
}
func HandleGetFiles(resp http.ResponseWriter, request *http.Request) {
cors := HandleCors(resp, request)
if cors {
return
}
// 1. Check user directly
// 2. Check workflow execution authorization
user, err := HandleApiAuthentication(resp, request)
if err != nil {
log.Printf("[AUDIT] INITIAL Api authentication failed in file LIST: %s", err)
resp.WriteHeader(401)
resp.Write([]byte(`{"success": false}`))
return
}
if user.Role != "admin" {
log.Printf("[AUTH] User isn't admin")
resp.WriteHeader(401)
resp.Write([]byte(fmt.Sprintf(`{"success": false, "reason": "Need to be admin to list files"}`)))
return
}
ctx := GetContext(request)
files, err := GetAllFiles(ctx, user.ActiveOrg.Id, "")
if err != nil && len(files) == 0 {
log.Printf("[ERROR] Failed to get files: %s", err)
resp.WriteHeader(500)
resp.Write([]byte(fmt.Sprintf(`{"success": false, "reason": "Error getting files."}`)))
return
}
sort.Slice(files[:], func(i, j int) bool {
return files[i].UpdatedAt > files[j].UpdatedAt
})
fileResponse := FileResponse{
Success: true,
Files: files,
Namespaces: []string{"default"},
}
for _, file := range files {
if file.Status != "active" {
continue
}
if file.Namespace != "" && file.Namespace != "default" {
if !ArrayContains(fileResponse.Namespaces, file.Namespace) {
fileResponse.Namespaces = append(fileResponse.Namespaces, file.Namespace)
}
}
}
// Shitty way to build it, but works before scale. Need ES search mechanism for namespaces
log.Printf("[INFO] Got %d files and %d namespace(s) for org %s", len(files), len(fileResponse.Namespaces), user.ActiveOrg.Id)
newBody, err := json.Marshal(fileResponse)
if err != nil {
log.Printf("[ERROR] Failed marshaling files: %s", err)
resp.WriteHeader(500)
resp.Write([]byte(`{"success": false, "reason": "Failed to marshal files"}`))
return
}
resp.WriteHeader(200)
resp.Write([]byte(newBody))
}
func HandleGetFileMeta(resp http.ResponseWriter, request *http.Request) {
cors := HandleCors(resp, request)
if cors {
return
}
// 1. Check user directly
// 2. Check workflow execution authorization
user, err := HandleApiAuthentication(resp, request)
if err != nil {
log.Printf("[AUDIT] INITIAL Api authentication failed in file deletion: %s", err)
orgId, err := fileAuthentication(request)
if err != nil {
log.Printf("[ERROR] Bad file authentication in get: %s", err)
resp.WriteHeader(401)
resp.Write([]byte(`{"success": false}`))
return
}
user.ActiveOrg.Id = orgId
user.Username = "Execution File API"
}
var fileId string
location := strings.Split(request.URL.String(), "/")
if location[1] == "api" {
if len(location) <= 4 {
log.Printf("[INFO] Path too short: %d", len(location))
resp.WriteHeader(401)
resp.Write([]byte(`{"success": false}`))
return
}
fileId = location[4]
}
if strings.Contains(fileId, "?") {
fileId = strings.Split(fileId, "?")[0]
}
if len(fileId) != 36 && !strings.HasPrefix(fileId, "file_") {
log.Printf("[WARNING] Bad format for fileId %s", fileId)
resp.WriteHeader(401)
resp.Write([]byte(`{"success": false, "reason": "Badly formatted fileId"}`))
return
}
// 1. Verify if the user has access to the file: org_id and workflow
log.Printf("[INFO] Should GET FILE META for %s if user has access", fileId)
ctx := GetContext(request)
file, err := GetFile(ctx, fileId)
if err != nil {
log.Printf("[INFO] File %s not found: %s", fileId, err)
resp.WriteHeader(400)
resp.Write([]byte(`{"success": false}`))
return
}
found := false
if file.OrgId == user.ActiveOrg.Id {
found = true
} else {
for _, item := range user.Orgs {
if item == file.OrgId {
found = true
break
}
}
}
if !found {
log.Printf("[INFO] User %s doesn't have access to %s", user.Username, fileId)
resp.WriteHeader(401)
resp.Write([]byte(`{"success": false}`))
return
}
newBody, err := json.Marshal(file)
if err != nil {
resp.WriteHeader(500)
resp.Write([]byte(`{"success": false, "reason": "Failed to marshal filedata"}`))
return
}
log.Printf("[INFO] Successfully got file meta for %s", fileId)
resp.WriteHeader(200)
resp.Write([]byte(newBody))
}
func HandleDeleteFile(resp http.ResponseWriter, request *http.Request) {
cors := HandleCors(resp, request)
if cors {
return
}
// read query parameter "remove_metadata"
removeMetadata := false
removeMetadataQuery, ok := request.URL.Query()["remove_metadata"]
if ok && len(removeMetadataQuery) > 0 {
if removeMetadataQuery[0] == "true" {
log.Printf("[INFO] Remove metadata is true")
removeMetadata = true
}
}
var fileId string
location := strings.Split(request.URL.String(), "/")
if location[1] == "api" {
if len(location) <= 4 {
log.Printf("[INFO] Path too short: %d", len(location))
resp.WriteHeader(401)
resp.Write([]byte(`{"success": false}`))
return
}
fileId = location[4]
}
if strings.Contains(fileId, "?") {
fileId = strings.Split(fileId, "?")[0]
}
if len(fileId) != 36 && !strings.HasPrefix(fileId, "file_") {
log.Printf("[WARNING] Bad format for fileId %s", fileId)
resp.WriteHeader(401)
resp.Write([]byte(`{"success": false, "reason": "Badly formatted fileId"}`))
return
}
// 1. Check user directly
// 2. Check workflow execution authorization
user, err := HandleApiAuthentication(resp, request)
if err != nil {
log.Printf("[AUDIT] INITIAL Api authentication failed in file deletion: %s", err)
orgId, err := fileAuthentication(request)
if err != nil {
log.Printf("[ERROR] Bad file authentication in delete: %s", err)
resp.WriteHeader(401)
resp.Write([]byte(`{"success": false}`))
return
}
user.ActiveOrg.Id = orgId
user.Username = "Execution File API"
}
log.Printf("[INFO] User %s (%s) is attempting to delete file %s", user.Username, user.Id, fileId)
if user.Role == "org-reader" {
log.Printf("[WARNING] Org-reader doesn't have access to delete files: %s (%s)", user.Username, user.Id)
resp.WriteHeader(401)
resp.Write([]byte(`{"success": false, "reason": "Read only user"}`))
return
}
// 1. Verify if the user has access to the file: org_id and workflow
log.Printf("[INFO] Should DELETE file %s if user has access", fileId)
ctx := GetContext(request)
file, err := GetFile(ctx, fileId)
if err != nil {
log.Printf("[INFO] File %s not found: %s", fileId, err)
resp.WriteHeader(400)
resp.Write([]byte(`{"success": false}`))
return
}
found := false
if file.OrgId == user.ActiveOrg.Id {
found = true
} else {
for _, item := range user.Orgs {
if item == file.OrgId {
found = true
break
}
}
}
if !found {
log.Printf("[INFO] User %s doesn't have access to %s", user.Username, fileId)
resp.WriteHeader(401)
resp.Write([]byte(`{"success": false}`))
return
}
if file.Status == "deleted" {
log.Printf("[INFO] File with ID %s is already deleted.", fileId)
if !(removeMetadata) {
resp.WriteHeader(401)
resp.Write([]byte(`{"success": false}`))
return
}
} else {
if project.Environment == "cloud" || file.StorageArea == "google_storage" {
bucket := project.StorageClient.Bucket(orgFileBucket)
obj := bucket.Object(file.DownloadPath)
err := obj.Delete(ctx)
if err != nil {
log.Printf("[ERROR] FAILED to delete file %s from Google cloud storage. Removing frontend reference anyway. Err: %s", fileId, err)
} else {
log.Printf("[DEBUG] Deleted file %s from Google cloud storage", fileId)
}
} else {
if fileExists(file.DownloadPath) {
err = os.Remove(file.DownloadPath)
if err != nil {
log.Printf("[ERROR] Failed deleting file locally: %s", err)
resp.WriteHeader(401)
resp.Write([]byte(fmt.Sprintf(`{"success": false, "reason": "Failed deleting filein path %s"}`, file.DownloadPath)))
return
}
log.Printf("[INFO] Deleted file %s locally. Next is database.", file.DownloadPath)
} else {
log.Printf("[ERROR] File doesn't exist. Can't delete. Should maybe delete file anyway?")
resp.WriteHeader(200)
resp.Write([]byte(fmt.Sprintf(`{"success": false, "reason": "File in location %s doesn't exist"}`, file.DownloadPath)))
return
}
}
file.Status = "deleted"
err = SetFile(ctx, *file)
if err != nil {
log.Printf("[ERROR] Failed setting file to deleted: %s", err)
resp.WriteHeader(500)
resp.Write([]byte(`{"success": false, "reason": "Failed setting file to deleted"}`))
return
}
outputFiles, err := FindSimilarFile(ctx, file.Md5sum, file.OrgId)
log.Printf("[INFO] Found %d similar files for Md5 '%s'", len(outputFiles), file.Md5sum)
if len(outputFiles) > 0 {
for _, item := range outputFiles {
item.Status = "deleted"
err = SetFile(ctx, item)
if err != nil {
log.Printf("[ERROR] Failed setting duplicate file %s to deleted", item.Id)
}
}
}
nameKey := "Files"
DeleteCache(ctx, fmt.Sprintf("%s_%s_%s", nameKey, file.OrgId, file.Md5sum))
DeleteCache(ctx, fmt.Sprintf("%s_%s", nameKey, file.OrgId))
}
if removeMetadata {
//Actually delete it
err = DeleteKey(ctx, "files", fileId)
if err != nil {
log.Printf("Failed deleting file with ID %s: %s", fileId, err)
resp.WriteHeader(401)
resp.Write([]byte(`{"success": false}`))
return
}
log.Printf("[INFO] Deleted file %s from database", fileId)
}
log.Printf("[INFO] Successfully deleted file %s for org %s", fileId, user.ActiveOrg.Id)
resp.WriteHeader(200)
resp.Write([]byte(`{"success": true}`))
}
func LoadStandardFromGithub(client *github.Client, owner, repo, path, filename string) ([]*github.RepositoryContent, error) {
var err error
ctx := context.Background()
files := []*github.RepositoryContent{}
cacheKey := fmt.Sprintf("github_%s_%s_%s_%s", owner, repo, path, filename)
if project.CacheDb {
cache, err := GetCache(ctx, cacheKey)
if err == nil {
cacheData := []byte(cache.([]uint8))
err = json.Unmarshal(cacheData, &files)
if err == nil {
//return files, nil
}
}
}
if len(files) == 0 {
_, files, _, err = client.Repositories.GetContents(ctx, owner, repo, path, nil)
if err != nil {
log.Printf("[WARNING] Failed getting standard list for namespace %s: %s", path, err)
return []*github.RepositoryContent{}, err
}
}
//log.Printf("\n\n[DEBUG] Got %d file(s): %s\n\n", len(files), path)
if len(files) == 0 {
log.Printf("[ERROR] No files found in namespace '%s' on Github - Used for integration framework", path)
return []*github.RepositoryContent{}, nil
}
if len(filename) > 0 {
matchingFiles := []*github.RepositoryContent{}
for _, item := range files {
if len(filename) > 0 && strings.HasPrefix(*item.Name, filename) {
matchingFiles = append(matchingFiles, item)
}
}
files = matchingFiles
}
if project.CacheDb {
data, err := json.Marshal(files)
if err != nil {
log.Printf("[WARNING] Failed marshalling in get github files: %s", err)
return files, nil
}
err = SetCache(ctx, cacheKey, data, 30)
if err != nil {
log.Printf("[WARNING] Failed setting cache for getfiles on github '%s': %s", cacheKey, err)
}
}
return files, nil
}
func HandleGetFileNamespace(resp http.ResponseWriter, request *http.Request) {
cors := HandleCors(resp, request)
if cors {
return
}
var namespace string
location := strings.Split(request.URL.String(), "/")
if location[1] == "api" {
if len(location) <= 5 {
log.Printf("Path too short: %d", len(location))
resp.WriteHeader(401)
resp.Write([]byte(`{"success": false}`))
return
}
namespace = location[5]
}
if strings.Contains(namespace, "?") {
namespace = strings.Split(namespace, "?")[0]
}
namespace = strings.Replace(namespace, "%20", " ", -1)
// 1. Check user directly
// 2. Check workflow execution authorization
user, err := HandleApiAuthentication(resp, request)
if err != nil {
//log.Printf("[AUDIT] INITIAL Api authentication failed in file download: %s", err)
orgId, err := fileAuthentication(request)
if err != nil {
log.Printf("[WARNING] Bad file authentication in get namespace %s: %s", namespace, err)
resp.WriteHeader(401)
resp.Write([]byte(`{"success": false}`))
return
}
user.ActiveOrg.Id = orgId
user.Username = "Execution File API"
}
log.Printf("[AUDIT] User '%s' (%s) is trying to get files from namespace %#v", user.Username, user.Id, namespace)
ctx := GetContext(request)
files, err := GetAllFiles(ctx, user.ActiveOrg.Id, namespace)
if err != nil && len(files) == 0 {
log.Printf("[ERROR] Failed to get files: %s", err)
resp.WriteHeader(500)
resp.Write([]byte(fmt.Sprintf(`{"success": false, "reason": "Error getting files."}`)))
return
}
sort.Slice(files[:], func(i, j int) bool {
return files[i].UpdatedAt > files[j].UpdatedAt
})
fileResponse := FileResponse{
Files: []File{},
Namespaces: []string{namespace},
List: []BaseFile{},
}
for _, file := range files {
if file.Status != "active" {
//log.Printf("[DEBUG] File %s (%s) is not active", file.Filename, file.Id)
continue
}
if file.Namespace == "" {
file.Namespace = "default"
}
//log.Printf("File namespace: %s", file.Namespace)
if file.Namespace == namespace && file.OrgId == user.ActiveOrg.Id {
// FIXME: This double control is silly
fileResponse.Files = append(fileResponse.Files, file)
fileResponse.List = append(fileResponse.List, BaseFile{
Name: file.Filename,
ID: file.Id,
Type: file.Type,
UpdatedAt: file.UpdatedAt,
Md5Sum: file.Md5sum,
Status: file.Status,
FileSize: file.FileSize,
})
}
}
//log.Printf("[DEBUG] Found %d (%d:%d) files in org %s (%s) for namespace '%s'", len(files), len(fileResponse.Files), len(fileResponse.List), user.ActiveOrg.Name, user.ActiveOrg.Id, namespace)
// Standards to load directly from Github if applicable
reservedCategoryNames := []string{
"translation_input",
"translation_output",
"translation_standards",
"translation_ai_queries",
"detections",
}
// Dynamically loads special files directly from Github
// For now it's using Shuffle's repo for standards, but this could
// also be environment variables / input arguments
filename, filenameOk := request.URL.Query()["filename"]
if filenameOk && ArrayContains(reservedCategoryNames, namespace) {
//log.Printf("[DEBUG] Filename '%s' in URL with reserved category name: %s. Listlength: %d", filename[0], namespace, len(fileResponse.List))
// Load from Github repo https://github.com/Shuffle/standards
filenameFound := false
parsedFilename := strings.TrimSpace(strings.Replace(strings.ToLower(filename[0]), " ", "_", -1))
if strings.HasSuffix(parsedFilename, ".json") {
parsedFilename = strings.Replace(parsedFilename, ".json", "", -1)
}
// This is basically a unique handler
for _, item := range fileResponse.List {
itemName := strings.TrimSpace(strings.Replace(strings.ToLower(item.Name), " ", "_", -1))
if itemName == parsedFilename || itemName == fmt.Sprintf("%s.json", parsedFilename) {
filenameFound = true
break
}
}
// FIXME: How to handle files here?
if !filenameFound && namespace != "translation_input" && namespace != "translation_ai_queries" && namespace != "translation_output" {
client := github.NewClient(nil)
owner := "shuffle"
repo := "standards"
foundFiles, err := LoadStandardFromGithub(client, owner, repo, namespace, filename[0])
if err != nil {
if !strings.Contains(err.Error(), "404") {
log.Printf("[ERROR] Failed loading file %s in category %s from Github: %s", filename[0], namespace, err)
}
// Don't quit here as the standard may not exist in that repo
//resp.WriteHeader(500)
//resp.Write([]byte(fmt.Sprintf(`{"success": false, "reason": "Failed loading file from Github repo %s/%s"}`, owner, repo)))
//return
} else {
log.Printf("[DEBUG] Found %d file(s) in category '%s' for filename '%s'", len(foundFiles), namespace, filename[0])
for _, item := range foundFiles {
log.Printf("[DEBUG] Found file from Github '%s'", *item.Name)
fileContent, _, _, err := client.Repositories.GetContents(ctx, owner, repo, *item.Path, nil)
if err != nil {
log.Printf("[ERROR] Failed getting file %s: %s", *item.Path, err)
continue
}
// Get the bytes of the file
decoded, err := base64.StdEncoding.DecodeString(*fileContent.Content)
if err != nil {
log.Printf("[ERROR] Failed decoding standard file %s: %s", *item.Path, err)
continue
}
//log.Printf("[DEBUG] Decoded Github file '%s' with content:\n%s", *item.Path, string(decoded))
timeNow := time.Now().Unix()
fileId := "file_"+uuid.NewV4().String()
folderPath := fmt.Sprintf("%s/%s/%s", basepath, user.ActiveOrg.Id, "global")
downloadPath := fmt.Sprintf("%s/%s", folderPath, fileId)
file := File{
Id: fileId,
CreatedAt: timeNow,
UpdatedAt: timeNow,
Description: "",
Status: "active",
Filename: *item.Name,
OrgId: user.ActiveOrg.Id,
WorkflowId: "global",
DownloadPath: downloadPath,
Subflows: []string{},
StorageArea: "local",
Namespace: namespace,
Tags: []string{
"standard",
},
}
if project.Environment == "cloud" {
file.StorageArea = "google_storage"
}
// Can be used for validation files for change
var buf bytes.Buffer
io.Copy(&buf, bytes.NewReader(decoded))
contents := buf.Bytes()
file.FileSize = int64(len(contents))
file.ContentType = http.DetectContentType(contents)
file.OriginalMd5sum = Md5sum(contents)
buf.Reset()
// Handle file encryption if an encryption key is set
parsedKey := fmt.Sprintf("%s_%s", user.ActiveOrg.Id, file.Id)
fileId, err = uploadFile(ctx, &file, parsedKey, contents)
if err != nil {
log.Printf("[ERROR] Failed to upload file %s: %s", fileId, err)
continue
}
log.Printf("[DEBUG] Uploaded file %#v with ID %s in category %#v", file.Filename, fileId, namespace)
fileResponse.List = append(fileResponse.List, BaseFile{
Name: file.Filename,
ID: fileId,
Type: file.Type,
UpdatedAt: file.UpdatedAt,
Md5Sum: file.Md5sum,
Status: file.Status,
FileSize: file.FileSize,
})
}
}
}
}
ids, idsok := request.URL.Query()["ids"]
if idsok {
if ids[0] == "true" {
fileResponse.Success = true
fileResponse.Files = []File{}
newBody, err := json.Marshal(fileResponse)
if err != nil {
log.Printf("[ERROR] Failed marshaling files (2) for user %s (%s): %s", user.Username, user.Id, err)
resp.WriteHeader(500)
resp.Write([]byte(`{"success": false, "reason": "Failed to marshal files (2)"}`))
return
}
resp.WriteHeader(200)
resp.Write([]byte(newBody))
return
}
}
//zipfile := fmt.Sprintf("%s.zip", namespace)
buf := new(bytes.Buffer)
zipWriter := zip.NewWriter(buf)
packed := 0
for _, file := range fileResponse.Files {
var filedata = []byte{}
if file.Encrypted {
if project.Environment == "cloud" || file.StorageArea == "google_storage" {
log.Printf("[ERROR] No namespace handler for cloud decryption (files)!")
} else {
Openfile, err := os.Open(file.DownloadPath)
defer Openfile.Close() //Close after function return
allText := []byte{}
buf := make([]byte, 1024)
for {
n, err := Openfile.Read(buf)
if err == io.EOF {
break
}
if err != nil {
continue
}
if n > 0 {
//fmt.Println(string(buf[:n]))
allText = append(allText, buf[:n]...)
}
}
passphrase := fmt.Sprintf("%s_%s", user.ActiveOrg.Id, file.Id)
if len(file.ReferenceFileId) > 0 {
passphrase = fmt.Sprintf("%s_%s", user.ActiveOrg.Id, file.ReferenceFileId)
}
data, err := HandleKeyDecryption(allText, passphrase)
if err != nil {
log.Printf("[ERROR] Failed decrypting file (3): %s", err)
} else {
//log.Printf("[DEBUG] File size of %s reduced from %d to %d after decryption (1)", file.Id, len(allText), len(data))
allText = []byte(data)
}
filedata = allText
}
} else {
filedata, err = ioutil.ReadFile(file.DownloadPath)
if err != nil {
log.Printf("Filereading failed for %s create zip file : %v", file.Filename, err)
continue
}
}
//log.Printf("DATA: %s", string(filedata))
zipFile, err := zipWriter.Create(file.Filename)
if err != nil {
log.Printf("[WARNING] Packing failed for %s create zip file: %v", file.Filename, err)
continue
}
// Have to use Fprintln otherwise it tries to parse all strings etc.
if _, err := fmt.Fprintln(zipFile, string(filedata)); err != nil {
log.Printf("[WARNING] Datapasting failed for %s when creating zip file from bucket: %v", file.Filename, err)
continue
}
packed += 1
}
err = zipWriter.Close()
if err != nil {
log.Printf("[WARNING] Packing failed to close zip file writer: %v", err)
resp.WriteHeader(401)
resp.Write([]byte(`{"success": false}`))
return
}
if packed == 0 {
log.Printf("[WARNING] Couldn't find anything for namespace %s in org %s", namespace, user.ActiveOrg.Id)
resp.WriteHeader(401)
resp.Write([]byte(`{"success": false}`))
return
}
log.Printf("[DEBUG] Packed %d files from namespace %s into the zip for %s (%s)", packed, namespace, user.Username, user.Id)
FileHeader := make([]byte, 512)
FileContentType := http.DetectContentType(FileHeader)
resp.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=%s.zip", namespace))
resp.Header().Set("Content-Type", FileContentType)
io.Copy(resp, buf)
}
func HandleGetFileContent(resp http.ResponseWriter, request *http.Request) {
cors := HandleCors(resp, request)
if cors {
return
}
var fileId string
location := strings.Split(request.URL.String(), "/")
if location[1] == "api" {
if len(location) <= 4 {
log.Printf("Path too short: %d", len(location))
resp.WriteHeader(401)
resp.Write([]byte(`{"success": false}`))
return
}
fileId = location[4]
}
if len(fileId) != 36 && !strings.HasPrefix(fileId, "file_") {
log.Printf("[WARNING] Bad format for fileId %s", fileId)
resp.WriteHeader(401)
resp.Write([]byte(`{"success": false, "reason": "Badly formatted fileId"}`))
return
}
// 1. Check user directly
// 2. Check workflow execution authorization
user, err := HandleApiAuthentication(resp, request)
if err != nil {
orgId, err := fileAuthentication(request)
if err != nil {
log.Printf("[WARNING] Bad user & file authentication in get for ID %s: %s", fileId, err)
resp.WriteHeader(401)
resp.Write([]byte(`{"success": false}`))
return
}
user.ActiveOrg.Id = orgId
user.Username = "Execution File API"
}
log.Printf("[AUDIT] User '%s' (%s) downloading file %s in org %s", user.Username, user.Id, fileId, user.ActiveOrg.Id)
// 1. Verify if the user has access to the file: org_id and workflow
ctx := GetContext(request)
file, err := GetFile(ctx, fileId)
if err != nil {
log.Printf("[ERROR] File %s not found: %s", fileId, err)
resp.WriteHeader(400)
resp.Write([]byte(`{"success": false, "reason": "File not found"}`))
return
}
found := false
if file.OrgId == user.ActiveOrg.Id {
found = true
} else {
for _, item := range user.Orgs {
if item == file.OrgId {
found = true
break
}
}
}
if !found {
log.Printf("[WARNING] User %s doesn't have access to %s", user.Username, fileId)
resp.WriteHeader(401)
resp.Write([]byte(`{"success": false}`))
return
}
if file.Status != "active" {
log.Printf("[WARNING] File status isn't active, but %s. Can't continue.", file.Status)
resp.WriteHeader(401)
resp.Write([]byte(`{"success": false, "reason": "The file isn't ready to be downloaded yet. Status required: active"}`))
return
}
// Automatically downloads and returns the file through resp
// GetFileContent() is used to return data, through resp if possible due to how we used to do it.
if len(file.OrgId) == 0 {
file.OrgId = user.ActiveOrg.Id
}
_, err = GetFileContent(ctx, file, resp)
if err != nil {
log.Printf("[ERROR] Failed getting file content for %s: %s", fileId, err)
}
//resp.WriteHeader(200)
//resp.Write(content)
}
func GetFileContent(ctx context.Context, file *File, resp http.ResponseWriter) ([]byte, error) {
downloadPath := file.DownloadPath
if project.Environment == "cloud" || file.StorageArea == "google_storage" {
bucket := project.StorageClient.Bucket(orgFileBucket)
obj := bucket.Object(file.DownloadPath)
fileReader, err := obj.NewReader(ctx)
if err != nil {
log.Printf("[ERROR] Reader error for %s in bucket %s: %s", downloadPath, orgFileBucket, err)
file.Status = "deleted"
err = SetFile(ctx, *file)
if err != nil {
log.Printf("[ERROR] SetFile error while uploading")
if resp != nil {
resp.WriteHeader(500)
resp.Write([]byte(`{"success": false, "reason": "Failed setting file to deleted"}`))
}
return []byte{}, err
}
//File not found, send 404
if resp != nil {
resp.WriteHeader(404)
resp.Write([]byte(`{"success": false, "reason": "File doesn't exist in google cloud storage"}`))
}
return []byte{}, err
}
defer fileReader.Close()
if file.Encrypted {
allText := []byte{}
buf := make([]byte, 1024)
for {
n, err := fileReader.Read(buf)
if err == io.EOF {
break
}
if err != nil {
continue
}
if n > 0 {
//fmt.Println(string(buf[:n]))
allText = append(allText, buf[:n]...)
}
}
// FIXME:
// Editing in the following order fails:
// url -> apikey
// Editing in the following order works:
// apikey -> url
// This means apikey should be the reference file ID?
// Problem: It shouldn't edit ALL files when one out of many are edited.
//log.Printf("[DEBUG] MD5: %s, Original MD5:", file.Md5sum, file.OriginalMd5sum)
// If file does not equal the original MD5, it's been edited
passphrase := fmt.Sprintf("%s_%s", file.OrgId, file.Id)
data, err := HandleKeyDecryption(allText, passphrase)
if err != nil {
// Reference File Id only used as fallback
if len(file.ReferenceFileId) > 0 {