From a451e0b234ef0066550867c653ee55b617aa01e9 Mon Sep 17 00:00:00 2001 From: Alexandr Karpov Date: Mon, 27 Mar 2023 16:15:03 +0300 Subject: [PATCH] added chunked upload --- akarpov/contrib/chunked_upload/__init__.py | 1 + akarpov/contrib/chunked_upload/admin.py | 12 + akarpov/contrib/chunked_upload/constants.py | 17 + akarpov/contrib/chunked_upload/exceptions.py | 13 + .../chunked_upload/management}/__init__.py | 0 .../management/commands/__init__.py | 0 .../commands/delete_expired_uploads.py | 52 + .../chunked_upload/migrations/0001_initial.py | 72 + .../chunked_upload/migrations/__init__.py | 0 akarpov/contrib/chunked_upload/models.py | 107 ++ akarpov/contrib/chunked_upload/response.py | 16 + akarpov/contrib/chunked_upload/settings.py | 58 + akarpov/contrib/chunked_upload/tests.py | 2 + akarpov/contrib/chunked_upload/views.py | 319 ++++ akarpov/files/api/urls.py | 6 - akarpov/files/models.py | 3 +- akarpov/files/urls.py | 17 +- akarpov/files/views.py | 42 + akarpov/static/css/demo.css | 12 + akarpov/static/js/jquery.fileupload.js | 1466 +++++++++++++++++ akarpov/static/js/jquery.iframe-transport.js | 217 +++ akarpov/static/js/jquery.js | 4 + akarpov/static/js/jquery.ui.widget.js | 563 +++++++ akarpov/static/js/spark-md5.js | 1 + akarpov/templates/files/upload.html | 95 ++ config/api_router.py | 1 - config/settings/base.py | 2 +- poetry.lock | 30 +- pyproject.toml | 2 - 29 files changed, 3089 insertions(+), 41 deletions(-) create mode 100644 akarpov/contrib/chunked_upload/__init__.py create mode 100644 akarpov/contrib/chunked_upload/admin.py create mode 100644 akarpov/contrib/chunked_upload/constants.py create mode 100644 akarpov/contrib/chunked_upload/exceptions.py rename akarpov/{files/api => contrib/chunked_upload/management}/__init__.py (100%) create mode 100644 akarpov/contrib/chunked_upload/management/commands/__init__.py create mode 100644 akarpov/contrib/chunked_upload/management/commands/delete_expired_uploads.py create mode 100644 akarpov/contrib/chunked_upload/migrations/0001_initial.py create mode 100644 akarpov/contrib/chunked_upload/migrations/__init__.py create mode 100644 akarpov/contrib/chunked_upload/models.py create mode 100644 akarpov/contrib/chunked_upload/response.py create mode 100644 akarpov/contrib/chunked_upload/settings.py create mode 100644 akarpov/contrib/chunked_upload/tests.py create mode 100644 akarpov/contrib/chunked_upload/views.py delete mode 100644 akarpov/files/api/urls.py create mode 100644 akarpov/static/css/demo.css create mode 100644 akarpov/static/js/jquery.fileupload.js create mode 100644 akarpov/static/js/jquery.iframe-transport.js create mode 100644 akarpov/static/js/jquery.js create mode 100644 akarpov/static/js/jquery.ui.widget.js create mode 100644 akarpov/static/js/spark-md5.js create mode 100644 akarpov/templates/files/upload.html diff --git a/akarpov/contrib/chunked_upload/__init__.py b/akarpov/contrib/chunked_upload/__init__.py new file mode 100644 index 0000000..4802e90 --- /dev/null +++ b/akarpov/contrib/chunked_upload/__init__.py @@ -0,0 +1 @@ +__version__ = "1.0" diff --git a/akarpov/contrib/chunked_upload/admin.py b/akarpov/contrib/chunked_upload/admin.py new file mode 100644 index 0000000..b48e054 --- /dev/null +++ b/akarpov/contrib/chunked_upload/admin.py @@ -0,0 +1,12 @@ +from django.contrib import admin + +from .models import ChunkedUpload + + +class ChunkedUploadAdmin(admin.ModelAdmin): + list_display = ("upload_id", "filename", "status", "created_on") + search_fields = ("filename", "filename") + list_filter = ("status",) + + +admin.site.register(ChunkedUpload, ChunkedUploadAdmin) diff --git a/akarpov/contrib/chunked_upload/constants.py b/akarpov/contrib/chunked_upload/constants.py new file mode 100644 index 0000000..97ef76b --- /dev/null +++ b/akarpov/contrib/chunked_upload/constants.py @@ -0,0 +1,17 @@ +from django.utils.translation import gettext as _ + + +class http_status: + HTTP_200_OK = 200 + HTTP_400_BAD_REQUEST = 400 + HTTP_403_FORBIDDEN = 403 + HTTP_410_GONE = 410 + + +UPLOADING = 1 +COMPLETE = 2 + +CHUNKED_UPLOAD_CHOICES = ( + (UPLOADING, _("Uploading")), + (COMPLETE, _("Complete")), +) diff --git a/akarpov/contrib/chunked_upload/exceptions.py b/akarpov/contrib/chunked_upload/exceptions.py new file mode 100644 index 0000000..c417a25 --- /dev/null +++ b/akarpov/contrib/chunked_upload/exceptions.py @@ -0,0 +1,13 @@ +""" +Exceptions raised by django-chunked-upload. +""" + + +class ChunkedUploadError(Exception): + """ + Exception raised if errors in the request/process. + """ + + def __init__(self, status, **data): + self.status_code = status + self.data = data diff --git a/akarpov/files/api/__init__.py b/akarpov/contrib/chunked_upload/management/__init__.py similarity index 100% rename from akarpov/files/api/__init__.py rename to akarpov/contrib/chunked_upload/management/__init__.py diff --git a/akarpov/contrib/chunked_upload/management/commands/__init__.py b/akarpov/contrib/chunked_upload/management/commands/__init__.py new file mode 100644 index 0000000..e69de29 diff --git a/akarpov/contrib/chunked_upload/management/commands/delete_expired_uploads.py b/akarpov/contrib/chunked_upload/management/commands/delete_expired_uploads.py new file mode 100644 index 0000000..e0ad1cd --- /dev/null +++ b/akarpov/contrib/chunked_upload/management/commands/delete_expired_uploads.py @@ -0,0 +1,52 @@ +from optparse import make_option + +from django.core.management.base import BaseCommand +from django.utils import timezone +from django.utils.translation import ugettext as _ + +from akarpov.contrib.chunked_upload.constants import COMPLETE, UPLOADING +from akarpov.contrib.chunked_upload.models import ChunkedUpload +from akarpov.contrib.chunked_upload.settings import EXPIRATION_DELTA + +prompt_msg = _("Do you want to delete {obj}?") + + +class Command(BaseCommand): + + # Has to be a ChunkedUpload subclass + model = ChunkedUpload + + help = "Deletes chunked uploads that have already expired." + + option_list = BaseCommand.option_list + ( + make_option( + "--interactive", + action="store_true", + dest="interactive", + default=False, + help="Prompt confirmation before each deletion.", + ), + ) + + def handle(self, *args, **options): + interactive = options.get("interactive") + + count = {UPLOADING: 0, COMPLETE: 0} + qs = self.model.objects.all() + qs = qs.filter(created_on__lt=(timezone.now() - EXPIRATION_DELTA)) + + for chunked_upload in qs: + if interactive: + prompt = prompt_msg.format(obj=chunked_upload) + " (y/n): " + answer = input(prompt).lower() + while answer not in ("y", "n"): + answer = input(prompt).lower() + if answer == "n": + continue + + count[chunked_upload.status] += 1 + # Deleting objects individually to call delete method explicitly + chunked_upload.delete() + + print("%i complete uploads were deleted." % count[COMPLETE]) + print("%i incomplete uploads were deleted." % count[UPLOADING]) diff --git a/akarpov/contrib/chunked_upload/migrations/0001_initial.py b/akarpov/contrib/chunked_upload/migrations/0001_initial.py new file mode 100644 index 0000000..38ef679 --- /dev/null +++ b/akarpov/contrib/chunked_upload/migrations/0001_initial.py @@ -0,0 +1,72 @@ +# Generated by Django 4.1.7 on 2023-03-27 11:18 + +import akarpov.contrib.chunked_upload.models +import akarpov.utils.files +from django.conf import settings +from django.db import migrations, models +import django.db.models.deletion + + +class Migration(migrations.Migration): + + initial = True + + dependencies = [ + migrations.swappable_dependency(settings.AUTH_USER_MODEL), + ] + + operations = [ + migrations.CreateModel( + name="ChunkedUpload", + fields=[ + ( + "id", + models.BigAutoField( + auto_created=True, + primary_key=True, + serialize=False, + verbose_name="ID", + ), + ), + ( + "upload_id", + models.CharField( + default=akarpov.contrib.chunked_upload.models.generate_upload_id, + editable=False, + max_length=32, + unique=True, + ), + ), + ( + "file", + models.FileField( + max_length=255, + upload_to=akarpov.utils.files.user_file_upload_mixin, + ), + ), + ("filename", models.CharField(max_length=255)), + ("offset", models.BigIntegerField(default=0)), + ("created_on", models.DateTimeField(auto_now_add=True)), + ( + "status", + models.PositiveSmallIntegerField( + choices=[(1, "Uploading"), (2, "Complete")], default=1 + ), + ), + ("completed_on", models.DateTimeField(blank=True, null=True)), + ( + "user", + models.ForeignKey( + blank=True, + null=True, + on_delete=django.db.models.deletion.CASCADE, + related_name="chunked_uploads", + to=settings.AUTH_USER_MODEL, + ), + ), + ], + options={ + "abstract": False, + }, + ), + ] diff --git a/akarpov/contrib/chunked_upload/migrations/__init__.py b/akarpov/contrib/chunked_upload/migrations/__init__.py new file mode 100644 index 0000000..e69de29 diff --git a/akarpov/contrib/chunked_upload/models.py b/akarpov/contrib/chunked_upload/models.py new file mode 100644 index 0000000..bf50e49 --- /dev/null +++ b/akarpov/contrib/chunked_upload/models.py @@ -0,0 +1,107 @@ +import hashlib +import uuid + +from django.conf import settings +from django.core.files.uploadedfile import UploadedFile +from django.db import models +from django.utils import timezone + +from .constants import CHUNKED_UPLOAD_CHOICES, UPLOADING +from .settings import ( + DEFAULT_MODEL_USER_FIELD_BLANK, + DEFAULT_MODEL_USER_FIELD_NULL, + EXPIRATION_DELTA, + STORAGE, + UPLOAD_TO, +) + + +def generate_upload_id(): + return uuid.uuid4().hex + + +class AbstractChunkedUpload(models.Model): + """ + Base chunked upload model. This model is abstract (doesn't create a table + in the database). + Inherit from this model to implement your own. + """ + + upload_id = models.CharField( + max_length=32, unique=True, editable=False, default=generate_upload_id + ) + file = models.FileField(max_length=255, upload_to=UPLOAD_TO, storage=STORAGE) + filename = models.CharField(max_length=255) + offset = models.BigIntegerField(default=0) + created_on = models.DateTimeField(auto_now_add=True) + status = models.PositiveSmallIntegerField( + choices=CHUNKED_UPLOAD_CHOICES, default=UPLOADING + ) + completed_on = models.DateTimeField(null=True, blank=True) + + @property + def expires_on(self): + return self.created_on + EXPIRATION_DELTA + + @property + def expired(self): + return self.expires_on <= timezone.now() + + @property + def md5(self): + if getattr(self, "_md5", None) is None: + md5 = hashlib.md5() + for chunk in self.file.chunks(): + md5.update(chunk) + self._md5 = md5.hexdigest() + return self._md5 + + def delete(self, delete_file=True, *args, **kwargs): + if self.file: + storage, path = self.file.storage, self.file.path + super().delete(*args, **kwargs) + if self.file and delete_file: + storage.delete(path) + + def __str__(self): + return f"<{self.filename} - upload_id: {self.upload_id} - bytes: {self.offset} - status: {self.status}>" + + def append_chunk(self, chunk, chunk_size=None, save=True): + self.file.close() + with open(self.file.path, mode="ab") as file_obj: # mode = append+binary + file_obj.write( + chunk.read() + ) # We can use .read() safely because chunk is already in memory + + if chunk_size is not None: + self.offset += chunk_size + elif hasattr(chunk, "size"): + self.offset += chunk.size + else: + self.offset = self.file.size + self._md5 = None # Clear cached md5 + if save: + self.save() + self.file.close() # Flush + + def get_uploaded_file(self): + self.file.close() + self.file.open(mode="rb") # mode = read+binary + return UploadedFile(file=self.file, name=self.filename, size=self.offset) + + class Meta: + abstract = True + + +class ChunkedUpload(AbstractChunkedUpload): + """ + Default chunked upload model. + """ + + user = models.ForeignKey( + settings.AUTH_USER_MODEL, + on_delete=models.CASCADE, + related_name="chunked_uploads", + null=DEFAULT_MODEL_USER_FIELD_NULL, + blank=DEFAULT_MODEL_USER_FIELD_BLANK, + ) diff --git a/akarpov/contrib/chunked_upload/response.py b/akarpov/contrib/chunked_upload/response.py new file mode 100644 index 0000000..af47b2e --- /dev/null +++ b/akarpov/contrib/chunked_upload/response.py @@ -0,0 +1,16 @@ +from django.http import HttpResponse + +from .settings import CONTENT_TYPE, ENCODER + + +class Response(HttpResponse): + """ """ + + def __init__(self, content, status=None, *args, **kwargs): + super().__init__( + content=ENCODER(content), + content_type=CONTENT_TYPE, + status=status, + *args, + **kwargs + ) diff --git a/akarpov/contrib/chunked_upload/settings.py b/akarpov/contrib/chunked_upload/settings.py new file mode 100644 index 0000000..df4f325 --- /dev/null +++ b/akarpov/contrib/chunked_upload/settings.py @@ -0,0 +1,58 @@ +import os.path +import time +from datetime import timedelta + +from django.conf import settings +from django.core.serializers.json import DjangoJSONEncoder +from django.utils.module_loading import import_string + +from akarpov.utils.files import user_file_upload_mixin + +# How long after creation the upload will expire +DEFAULT_EXPIRATION_DELTA = timedelta(days=1) +EXPIRATION_DELTA = getattr( + settings, "CHUNKED_UPLOAD_EXPIRATION_DELTA", DEFAULT_EXPIRATION_DELTA +) + +# Path where uploading files will be stored until completion +DEFAULT_UPLOAD_PATH = "chunked_uploads/%Y/%m/%d" +UPLOAD_PATH = getattr(settings, "CHUNKED_UPLOAD_PATH", DEFAULT_UPLOAD_PATH) + + +# upload_to function to be used in the FileField +def default_upload_to(instance, filename): + filename = os.path.join(UPLOAD_PATH, instance.upload_id + ".part") + return time.strftime(filename) + + +UPLOAD_TO = user_file_upload_mixin + +# Storage system + + +try: + STORAGE = getattr(settings, "CHUNKED_UPLOAD_STORAGE_CLASS", lambda: None)() +except TypeError: + STORAGE = import_string( + getattr(settings, "CHUNKED_UPLOAD_STORAGE_CLASS", lambda: None) + )() + +# Function used to encode response data. Receives a dict and return a string +DEFAULT_ENCODER = DjangoJSONEncoder().encode +ENCODER = getattr(settings, "CHUNKED_UPLOAD_ENCODER", DEFAULT_ENCODER) + +# Content-Type for the response data +DEFAULT_CONTENT_TYPE = "application/json" +CONTENT_TYPE = getattr(settings, "CHUNKED_UPLOAD_CONTENT_TYPE", DEFAULT_CONTENT_TYPE) + +# Max amount of data (in bytes) that can be uploaded. `None` means no limit +DEFAULT_MAX_BYTES = None +MAX_BYTES = getattr(settings, "CHUNKED_UPLOAD_MAX_BYTES", DEFAULT_MAX_BYTES) + +# determine the "null" and "blank" properties of "user" field in the "ChunkedUpload" model +DEFAULT_MODEL_USER_FIELD_NULL = getattr( + settings, "CHUNKED_UPLOAD_MODEL_USER_FIELD_NULL", True +) +DEFAULT_MODEL_USER_FIELD_BLANK = getattr( + settings, "CHUNKED_UPLOAD_MODEL_USER_FIELD_BLANK", True +) diff --git a/akarpov/contrib/chunked_upload/tests.py b/akarpov/contrib/chunked_upload/tests.py new file mode 100644 index 0000000..2c66857 --- /dev/null +++ b/akarpov/contrib/chunked_upload/tests.py @@ -0,0 +1,2 @@ +# Tests for chunked_upload should be created on the app where it is being used, +# with its own views and models. diff --git a/akarpov/contrib/chunked_upload/views.py b/akarpov/contrib/chunked_upload/views.py new file mode 100644 index 0000000..0ceeb89 --- /dev/null +++ b/akarpov/contrib/chunked_upload/views.py @@ -0,0 +1,319 @@ +import re + +from django.core.files.base import ContentFile +from django.shortcuts import get_object_or_404 +from django.utils import timezone +from django.views.generic import View + +from .constants import COMPLETE, http_status +from .exceptions import ChunkedUploadError +from .models import ChunkedUpload +from .response import Response +from .settings import MAX_BYTES + + +def is_authenticated(user): + if callable(user.is_authenticated): + return user.is_authenticated() # Django <2.0 + return user.is_authenticated # Django >=2.0 + + +class ChunkedUploadBaseView(View): + """ + Base view for the rest of chunked upload views. + """ + + # Has to be a ChunkedUpload subclass + model = ChunkedUpload + user_field_name = "user" # the field name that point towards the AUTH_USER in ChunkedUpload class or its subclasses + + def get_queryset(self, request): + """ + Get (and filter) ChunkedUpload queryset. + By default, users can only continue uploading their own uploads. + """ + queryset = self.model.objects.all() + if ( + hasattr(self.model, self.user_field_name) + and hasattr(request, "user") + and is_authenticated(request.user) + ): + queryset = queryset.filter(**{self.user_field_name: request.user}) + return queryset + + def validate(self, request): + """ + Placeholder method to define extra validation. + Must raise ChunkedUploadError if validation fails. + """ + + def get_response_data(self, chunked_upload, request): + """ + Data for the response. Should return a dictionary-like object. + Called *only* if POST is successful. + """ + return {} + + def pre_save(self, chunked_upload, request, new=False): + """ + Placeholder method for calling before saving an object. + May be used to set attributes on the object that are implicit + in either the request, or the url. + """ + + def save(self, chunked_upload, request, new=False): + """ + Method that calls save(). Overriding may be useful is save() needs + special args or kwargs. + """ + chunked_upload.save() + + def post_save(self, chunked_upload, request, new=False): + """ + Placeholder method for calling after saving an object. + """ + + def _save(self, chunked_upload): + """ + Wraps save() method. + """ + new = chunked_upload.id is None + self.pre_save(chunked_upload, self.request, new=new) + self.save(chunked_upload, self.request, new=new) + self.post_save(chunked_upload, self.request, new=new) + + def check_permissions(self, request): + """ + Grants permission to start/continue an upload based on the request. + """ + if hasattr(request, "user") and not is_authenticated(request.user): + raise ChunkedUploadError( + status=http_status.HTTP_403_FORBIDDEN, + detail="Authentication credentials were not provided", + ) + + def _post(self, request, *args, **kwargs): + raise NotImplementedError + + def post(self, request, *args, **kwargs): + """ + Handle POST requests. + """ + try: + self.check_permissions(request) + return self._post(request, *args, **kwargs) + except ChunkedUploadError as error: + return Response(error.data, status=error.status_code) + + +class ChunkedUploadView(ChunkedUploadBaseView): + """ + Uploads large files in multiple chunks. Also, has the ability to resume + if the upload is interrupted. + """ + + field_name = "file" + content_range_header = "HTTP_CONTENT_RANGE" + content_range_pattern = re.compile( + r"^bytes (?P\d+)-(?P\d+)/(?P\d+)$" + ) + max_bytes = MAX_BYTES # Max amount of data that can be uploaded + # If `fail_if_no_header` is True, an exception will be raised if the + # content-range header is not found. Default is False to match Jquery File + # Upload behavior (doesn't send header if the file is smaller than chunk) + fail_if_no_header = False + + def get_extra_attrs(self, request): + """ + Extra attribute values to be passed to the new ChunkedUpload instance. + Should return a dictionary-like object. + """ + attrs = {} + if ( + hasattr(self.model, self.user_field_name) + and hasattr(request, "user") + and is_authenticated(request.user) + ): + attrs[self.user_field_name] = request.user + return attrs + + def get_max_bytes(self, request): + """ + Used to limit the max amount of data that can be uploaded. `None` means + no limit. + You can override this to have a custom `max_bytes`, e.g. based on + logged user. + """ + + return self.max_bytes + + def create_chunked_upload(self, save=False, **attrs): + """ + Creates new chunked upload instance. Called if no 'upload_id' is + found in the POST data. + """ + chunked_upload = self.model(**attrs) + # file starts empty + chunked_upload.file.save(name="", content=ContentFile(""), save=save) + return chunked_upload + + def is_valid_chunked_upload(self, chunked_upload): + """ + Check if chunked upload has already expired or is already complete. + """ + if chunked_upload.expired: + raise ChunkedUploadError( + status=http_status.HTTP_410_GONE, detail="Upload has expired" + ) + error_msg = 'Upload has already been marked as "%s"' + if chunked_upload.status == COMPLETE: + raise ChunkedUploadError( + status=http_status.HTTP_400_BAD_REQUEST, detail=error_msg % "complete" + ) + + def get_response_data(self, chunked_upload, request): + """ + Data for the response. Should return a dictionary-like object. + """ + return { + "upload_id": chunked_upload.upload_id, + "offset": chunked_upload.offset, + "expires": chunked_upload.expires_on, + } + + def _post(self, request, *args, **kwargs): + chunk = request.FILES.get(self.field_name) + if chunk is None: + raise ChunkedUploadError( + status=http_status.HTTP_400_BAD_REQUEST, + detail="No chunk file was submitted", + ) + self.validate(request) + + upload_id = request.POST.get("upload_id") + if upload_id: + chunked_upload = get_object_or_404( + self.get_queryset(request), upload_id=upload_id + ) + self.is_valid_chunked_upload(chunked_upload) + else: + attrs = {"filename": chunk.name} + + attrs.update(self.get_extra_attrs(request)) + chunked_upload = self.create_chunked_upload(save=False, **attrs) + + content_range = request.META.get(self.content_range_header, "") + match = self.content_range_pattern.match(content_range) + if match: + start = int(match.group("start")) + end = int(match.group("end")) + total = int(match.group("total")) + elif self.fail_if_no_header: + raise ChunkedUploadError( + status=http_status.HTTP_400_BAD_REQUEST, + detail="Error in request headers", + ) + else: + # Use the whole size when HTTP_CONTENT_RANGE is not provided + start = 0 + end = chunk.size - 1 + total = chunk.size + + chunk_size = end - start + 1 + max_bytes = self.get_max_bytes(request) + + if max_bytes is not None and total > max_bytes: + raise ChunkedUploadError( + status=http_status.HTTP_400_BAD_REQUEST, + detail="Size of file exceeds the limit (%s bytes)" % max_bytes, + ) + if chunked_upload.offset != start: + raise ChunkedUploadError( + status=http_status.HTTP_400_BAD_REQUEST, + detail="Offsets do not match", + offset=chunked_upload.offset, + ) + if chunk.size != chunk_size: + raise ChunkedUploadError( + status=http_status.HTTP_400_BAD_REQUEST, + detail="File size doesn't match headers", + ) + + chunked_upload.append_chunk(chunk, chunk_size=chunk_size, save=False) + + self._save(chunked_upload) + + return Response( + self.get_response_data(chunked_upload, request), + status=http_status.HTTP_200_OK, + ) + + +class ChunkedUploadCompleteView(ChunkedUploadBaseView): + """ + Completes an chunked upload. Method `on_completion` is a placeholder to + define what to do when upload is complete. + """ + + # I wouldn't recommend to turn off the md5 check, unless is really + # impacting your performance. Proceed at your own risk. + do_md5_check = True + + def on_completion(self, uploaded_file, request): + """ + Placeholder method to define what to do when upload is complete. + """ + + def is_valid_chunked_upload(self, chunked_upload): + """ + Check if chunked upload is already complete. + """ + if chunked_upload.status == COMPLETE: + error_msg = "Upload has already been marked as complete" + return ChunkedUploadError( + status=http_status.HTTP_400_BAD_REQUEST, detail=error_msg + ) + + def md5_check(self, chunked_upload, md5): + """ + Verify if md5 checksum sent by client matches generated md5. + """ + if chunked_upload.md5 != md5: + raise ChunkedUploadError( + status=http_status.HTTP_400_BAD_REQUEST, + detail="md5 checksum does not match", + ) + + def _post(self, request, *args, **kwargs): + upload_id = request.POST.get("upload_id") + md5 = request.POST.get("md5") + + error_msg = None + if self.do_md5_check: + if not upload_id or not md5: + error_msg = "Both 'upload_id' and 'md5' are required" + elif not upload_id: + error_msg = "'upload_id' is required" + if error_msg: + raise ChunkedUploadError( + status=http_status.HTTP_400_BAD_REQUEST, detail=error_msg + ) + + chunked_upload = get_object_or_404( + self.get_queryset(request), upload_id=upload_id + ) + + self.validate(request) + self.is_valid_chunked_upload(chunked_upload) + if self.do_md5_check: + self.md5_check(chunked_upload, md5) + + chunked_upload.status = COMPLETE + chunked_upload.completed_on = timezone.now() + self._save(chunked_upload) + self.on_completion(chunked_upload.get_uploaded_file(), request) + + return Response( + self.get_response_data(chunked_upload, request), + status=http_status.HTTP_200_OK, + ) diff --git a/akarpov/files/api/urls.py b/akarpov/files/api/urls.py deleted file mode 100644 index 741e684..0000000 --- a/akarpov/files/api/urls.py +++ /dev/null @@ -1,6 +0,0 @@ -from django.urls import path -from drf_chunked_upload.views import ChunkedUploadView - -urlpatterns = [ - path("upload/", ChunkedUploadView.as_view(), name="chunked_upload"), -] diff --git a/akarpov/files/models.py b/akarpov/files/models.py index e584263..815cbf0 100644 --- a/akarpov/files/models.py +++ b/akarpov/files/models.py @@ -10,11 +10,12 @@ from django.urls import reverse from model_utils.models import TimeStampedModel +from akarpov.contrib.chunked_upload.models import AbstractChunkedUpload from akarpov.tools.shortener.models import ShortLink from akarpov.utils.files import user_file_upload_mixin -class File(TimeStampedModel, ShortLink): +class File(AbstractChunkedUpload, TimeStampedModel, ShortLink): """model to store user's files""" name = CharField(max_length=100) diff --git a/akarpov/files/urls.py b/akarpov/files/urls.py index 94ff15d..98e46c0 100644 --- a/akarpov/files/urls.py +++ b/akarpov/files/urls.py @@ -1,9 +1,24 @@ from django.urls import path -from akarpov.files.views import files_view, folder_view +from akarpov.files.views import ( + ChunkedUploadDemo, + MyChunkedUploadCompleteView, + MyChunkedUploadView, + files_view, + folder_view, +) app_name = "files" urlpatterns = [ + path("upload", ChunkedUploadDemo.as_view(), name="chunked_upload"), + path( + "api/chunked_upload_complete/", + MyChunkedUploadCompleteView.as_view(), + name="api_chunked_upload_complete", + ), + path( + "api/chunked_upload/", MyChunkedUploadView.as_view(), name="api_chunked_upload" + ), path("", files_view, name="view"), path("f/", folder_view, name="folder"), ] diff --git a/akarpov/files/views.py b/akarpov/files/views.py index 31bc91b..de96583 100644 --- a/akarpov/files/views.py +++ b/akarpov/files/views.py @@ -1,5 +1,10 @@ from django.views.generic import DetailView +from django.views.generic.base import TemplateView +from akarpov.contrib.chunked_upload.views import ( + ChunkedUploadCompleteView, + ChunkedUploadView, +) from akarpov.files.models import File, Folder @@ -19,3 +24,40 @@ class FileFolderView(DetailView): folder_view = FileFolderView.as_view() + + +class ChunkedUploadDemo(TemplateView): + template_name = "files/upload.html" + + +class MyChunkedUploadView(ChunkedUploadView): + model = File + field_name = "the_file" + + def check_permissions(self, request): + # Allow non authenticated users to make uploads + pass + + +class MyChunkedUploadCompleteView(ChunkedUploadCompleteView): + model = File + + def check_permissions(self, request): + # Allow non authenticated users to make uploads + pass + + def on_completion(self, uploaded_file, request): + # Do something with the uploaded file. E.g.: + # * Store the uploaded file on another model: + # SomeModel.objects.create(user=request.user, file=uploaded_file) + # * Pass it as an argument to a function: + # function_that_process_file(uploaded_file) + pass + + def get_response_data(self, chunked_upload, request): + return { + "message": ( + "You successfully uploaded '%s' (%s bytes)!" + % (chunked_upload.filename, chunked_upload.offset) + ) + } diff --git a/akarpov/static/css/demo.css b/akarpov/static/css/demo.css new file mode 100644 index 0000000..49e662d --- /dev/null +++ b/akarpov/static/css/demo.css @@ -0,0 +1,12 @@ +html { + margin: 0 auto; + max-width: 1000px; +} +body { + color: #5A5A5A; + font-family: monospace; + font-size: 14px; +} +.title { + text-align: center; +} diff --git a/akarpov/static/js/jquery.fileupload.js b/akarpov/static/js/jquery.fileupload.js new file mode 100644 index 0000000..e99f309 --- /dev/null +++ b/akarpov/static/js/jquery.fileupload.js @@ -0,0 +1,1466 @@ +/* + * jQuery File Upload Plugin 5.42.2 + * https://github.com/blueimp/jQuery-File-Upload + * + * Copyright 2010, Sebastian Tschan + * https://blueimp.net + * + * Licensed under the MIT license: + * http://www.opensource.org/licenses/MIT + */ + +/* jshint nomen:false */ +/* global define, require, window, document, location, Blob, FormData */ + +(function (factory) { + 'use strict'; + if (typeof define === 'function' && define.amd) { + // Register as an anonymous AMD module: + define([ + 'jquery', + 'jquery.ui.widget' + ], factory); + } else if (typeof exports === 'object') { + // Node/CommonJS: + factory( + require('jquery'), + require('./vendor/jquery.ui.widget') + ); + } else { + // Browser globals: + factory(window.jQuery); + } +}(function ($) { + 'use strict'; + + // Detect file input support, based on + // http://viljamis.com/blog/2012/file-upload-support-on-mobile/ + $.support.fileInput = !(new RegExp( + // Handle devices which give false positives for the feature detection: + '(Android (1\\.[0156]|2\\.[01]))' + + '|(Windows Phone (OS 7|8\\.0))|(XBLWP)|(ZuneWP)|(WPDesktop)' + + '|(w(eb)?OSBrowser)|(webOS)' + + '|(Kindle/(1\\.0|2\\.[05]|3\\.0))' + ).test(window.navigator.userAgent) || + // Feature detection for all other devices: + $('').prop('disabled')); + + // The FileReader API is not actually used, but works as feature detection, + // as some Safari versions (5?) support XHR file uploads via the FormData API, + // but not non-multipart XHR file uploads. + // window.XMLHttpRequestUpload is not available on IE10, so we check for + // window.ProgressEvent instead to detect XHR2 file upload capability: + $.support.xhrFileUpload = !!(window.ProgressEvent && window.FileReader); + $.support.xhrFormDataFileUpload = !!window.FormData; + + // Detect support for Blob slicing (required for chunked uploads): + $.support.blobSlice = window.Blob && (Blob.prototype.slice || + Blob.prototype.webkitSlice || Blob.prototype.mozSlice); + + // Helper function to create drag handlers for dragover/dragenter/dragleave: + function getDragHandler(type) { + var isDragOver = type === 'dragover'; + return function (e) { + e.dataTransfer = e.originalEvent && e.originalEvent.dataTransfer; + var dataTransfer = e.dataTransfer; + if (dataTransfer && $.inArray('Files', dataTransfer.types) !== -1 && + this._trigger( + type, + $.Event(type, {delegatedEvent: e}) + ) !== false) { + e.preventDefault(); + if (isDragOver) { + dataTransfer.dropEffect = 'copy'; + } + } + }; + } + + // The fileupload widget listens for change events on file input fields defined + // via fileInput setting and paste or drop events of the given dropZone. + // In addition to the default jQuery Widget methods, the fileupload widget + // exposes the "add" and "send" methods, to add or directly send files using + // the fileupload API. + // By default, files added via file input selection, paste, drag & drop or + // "add" method are uploaded immediately, but it is possible to override + // the "add" callback option to queue file uploads. + $.widget('blueimp.fileupload', { + + options: { + // The drop target element(s), by the default the complete document. + // Set to null to disable drag & drop support: + dropZone: $(document), + // The paste target element(s), by the default undefined. + // Set to a DOM node or jQuery object to enable file pasting: + pasteZone: undefined, + // The file input field(s), that are listened to for change events. + // If undefined, it is set to the file input fields inside + // of the widget element on plugin initialization. + // Set to null to disable the change listener. + fileInput: undefined, + // By default, the file input field is replaced with a clone after + // each input field change event. This is required for iframe transport + // queues and allows change events to be fired for the same file + // selection, but can be disabled by setting the following option to false: + replaceFileInput: true, + // The parameter name for the file form data (the request argument name). + // If undefined or empty, the name property of the file input field is + // used, or "files[]" if the file input name property is also empty, + // can be a string or an array of strings: + paramName: undefined, + // By default, each file of a selection is uploaded using an individual + // request for XHR type uploads. Set to false to upload file + // selections in one request each: + singleFileUploads: true, + // To limit the number of files uploaded with one XHR request, + // set the following option to an integer greater than 0: + limitMultiFileUploads: undefined, + // The following option limits the number of files uploaded with one + // XHR request to keep the request size under or equal to the defined + // limit in bytes: + limitMultiFileUploadSize: undefined, + // Multipart file uploads add a number of bytes to each uploaded file, + // therefore the following option adds an overhead for each file used + // in the limitMultiFileUploadSize configuration: + limitMultiFileUploadSizeOverhead: 512, + // Set the following option to true to issue all file upload requests + // in a sequential order: + sequentialUploads: false, + // To limit the number of concurrent uploads, + // set the following option to an integer greater than 0: + limitConcurrentUploads: undefined, + // Set the following option to true to force iframe transport uploads: + forceIframeTransport: false, + // Set the following option to the location of a redirect url on the + // origin server, for cross-domain iframe transport uploads: + redirect: undefined, + // The parameter name for the redirect url, sent as part of the form + // data and set to 'redirect' if this option is empty: + redirectParamName: undefined, + // Set the following option to the location of a postMessage window, + // to enable postMessage transport uploads: + postMessage: undefined, + // By default, XHR file uploads are sent as multipart/form-data. + // The iframe transport is always using multipart/form-data. + // Set to false to enable non-multipart XHR uploads: + multipart: true, + // To upload large files in smaller chunks, set the following option + // to a preferred maximum chunk size. If set to 0, null or undefined, + // or the browser does not support the required Blob API, files will + // be uploaded as a whole. + maxChunkSize: undefined, + // When a non-multipart upload or a chunked multipart upload has been + // aborted, this option can be used to resume the upload by setting + // it to the size of the already uploaded bytes. This option is most + // useful when modifying the options object inside of the "add" or + // "send" callbacks, as the options are cloned for each file upload. + uploadedBytes: undefined, + // By default, failed (abort or error) file uploads are removed from the + // global progress calculation. Set the following option to false to + // prevent recalculating the global progress data: + recalculateProgress: true, + // Interval in milliseconds to calculate and trigger progress events: + progressInterval: 100, + // Interval in milliseconds to calculate progress bitrate: + bitrateInterval: 500, + // By default, uploads are started automatically when adding files: + autoUpload: true, + + // Error and info messages: + messages: { + uploadedBytes: 'Uploaded bytes exceed file size' + }, + + // Translation function, gets the message key to be translated + // and an object with context specific data as arguments: + i18n: function (message, context) { + message = this.messages[message] || message.toString(); + if (context) { + $.each(context, function (key, value) { + message = message.replace('{' + key + '}', value); + }); + } + return message; + }, + + // Additional form data to be sent along with the file uploads can be set + // using this option, which accepts an array of objects with name and + // value properties, a function returning such an array, a FormData + // object (for XHR file uploads), or a simple object. + // The form of the first fileInput is given as parameter to the function: + formData: function (form) { + return form.serializeArray(); + }, + + // The add callback is invoked as soon as files are added to the fileupload + // widget (via file input selection, drag & drop, paste or add API call). + // If the singleFileUploads option is enabled, this callback will be + // called once for each file in the selection for XHR file uploads, else + // once for each file selection. + // + // The upload starts when the submit method is invoked on the data parameter. + // The data object contains a files property holding the added files + // and allows you to override plugin options as well as define ajax settings. + // + // Listeners for this callback can also be bound the following way: + // .bind('fileuploadadd', func); + // + // data.submit() returns a Promise object and allows to attach additional + // handlers using jQuery's Deferred callbacks: + // data.submit().done(func).fail(func).always(func); + add: function (e, data) { + if (e.isDefaultPrevented()) { + return false; + } + if (data.autoUpload || (data.autoUpload !== false && + $(this).fileupload('option', 'autoUpload'))) { + data.process().done(function () { + data.submit(); + }); + } + }, + + // Other callbacks: + + // Callback for the submit event of each file upload: + // submit: function (e, data) {}, // .bind('fileuploadsubmit', func); + + // Callback for the start of each file upload request: + // send: function (e, data) {}, // .bind('fileuploadsend', func); + + // Callback for successful uploads: + // done: function (e, data) {}, // .bind('fileuploaddone', func); + + // Callback for failed (abort or error) uploads: + // fail: function (e, data) {}, // .bind('fileuploadfail', func); + + // Callback for completed (success, abort or error) requests: + // always: function (e, data) {}, // .bind('fileuploadalways', func); + + // Callback for upload progress events: + // progress: function (e, data) {}, // .bind('fileuploadprogress', func); + + // Callback for global upload progress events: + // progressall: function (e, data) {}, // .bind('fileuploadprogressall', func); + + // Callback for uploads start, equivalent to the global ajaxStart event: + // start: function (e) {}, // .bind('fileuploadstart', func); + + // Callback for uploads stop, equivalent to the global ajaxStop event: + // stop: function (e) {}, // .bind('fileuploadstop', func); + + // Callback for change events of the fileInput(s): + // change: function (e, data) {}, // .bind('fileuploadchange', func); + + // Callback for paste events to the pasteZone(s): + // paste: function (e, data) {}, // .bind('fileuploadpaste', func); + + // Callback for drop events of the dropZone(s): + // drop: function (e, data) {}, // .bind('fileuploaddrop', func); + + // Callback for dragover events of the dropZone(s): + // dragover: function (e) {}, // .bind('fileuploaddragover', func); + + // Callback for the start of each chunk upload request: + // chunksend: function (e, data) {}, // .bind('fileuploadchunksend', func); + + // Callback for successful chunk uploads: + // chunkdone: function (e, data) {}, // .bind('fileuploadchunkdone', func); + + // Callback for failed (abort or error) chunk uploads: + // chunkfail: function (e, data) {}, // .bind('fileuploadchunkfail', func); + + // Callback for completed (success, abort or error) chunk upload requests: + // chunkalways: function (e, data) {}, // .bind('fileuploadchunkalways', func); + + // The plugin options are used as settings object for the ajax calls. + // The following are jQuery ajax settings required for the file uploads: + processData: false, + contentType: false, + cache: false + }, + + // A list of options that require reinitializing event listeners and/or + // special initialization code: + _specialOptions: [ + 'fileInput', + 'dropZone', + 'pasteZone', + 'multipart', + 'forceIframeTransport' + ], + + _blobSlice: $.support.blobSlice && function () { + var slice = this.slice || this.webkitSlice || this.mozSlice; + return slice.apply(this, arguments); + }, + + _BitrateTimer: function () { + this.timestamp = ((Date.now) ? Date.now() : (new Date()).getTime()); + this.loaded = 0; + this.bitrate = 0; + this.getBitrate = function (now, loaded, interval) { + var timeDiff = now - this.timestamp; + if (!this.bitrate || !interval || timeDiff > interval) { + this.bitrate = (loaded - this.loaded) * (1000 / timeDiff) * 8; + this.loaded = loaded; + this.timestamp = now; + } + return this.bitrate; + }; + }, + + _isXHRUpload: function (options) { + return !options.forceIframeTransport && + ((!options.multipart && $.support.xhrFileUpload) || + $.support.xhrFormDataFileUpload); + }, + + _getFormData: function (options) { + var formData; + if ($.type(options.formData) === 'function') { + return options.formData(options.form); + } + if ($.isArray(options.formData)) { + return options.formData; + } + if ($.type(options.formData) === 'object') { + formData = []; + $.each(options.formData, function (name, value) { + formData.push({name: name, value: value}); + }); + return formData; + } + return []; + }, + + _getTotal: function (files) { + var total = 0; + $.each(files, function (index, file) { + total += file.size || 1; + }); + return total; + }, + + _initProgressObject: function (obj) { + var progress = { + loaded: 0, + total: 0, + bitrate: 0 + }; + if (obj._progress) { + $.extend(obj._progress, progress); + } else { + obj._progress = progress; + } + }, + + _initResponseObject: function (obj) { + var prop; + if (obj._response) { + for (prop in obj._response) { + if (obj._response.hasOwnProperty(prop)) { + delete obj._response[prop]; + } + } + } else { + obj._response = {}; + } + }, + + _onProgress: function (e, data) { + if (e.lengthComputable) { + var now = ((Date.now) ? Date.now() : (new Date()).getTime()), + loaded; + if (data._time && data.progressInterval && + (now - data._time < data.progressInterval) && + e.loaded !== e.total) { + return; + } + data._time = now; + loaded = Math.floor( + e.loaded / e.total * (data.chunkSize || data._progress.total) + ) + (data.uploadedBytes || 0); + // Add the difference from the previously loaded state + // to the global loaded counter: + this._progress.loaded += (loaded - data._progress.loaded); + this._progress.bitrate = this._bitrateTimer.getBitrate( + now, + this._progress.loaded, + data.bitrateInterval + ); + data._progress.loaded = data.loaded = loaded; + data._progress.bitrate = data.bitrate = data._bitrateTimer.getBitrate( + now, + loaded, + data.bitrateInterval + ); + // Trigger a custom progress event with a total data property set + // to the file size(s) of the current upload and a loaded data + // property calculated accordingly: + this._trigger( + 'progress', + $.Event('progress', {delegatedEvent: e}), + data + ); + // Trigger a global progress event for all current file uploads, + // including ajax calls queued for sequential file uploads: + this._trigger( + 'progressall', + $.Event('progressall', {delegatedEvent: e}), + this._progress + ); + } + }, + + _initProgressListener: function (options) { + var that = this, + xhr = options.xhr ? options.xhr() : $.ajaxSettings.xhr(); + // Accesss to the native XHR object is required to add event listeners + // for the upload progress event: + if (xhr.upload) { + $(xhr.upload).bind('progress', function (e) { + var oe = e.originalEvent; + // Make sure the progress event properties get copied over: + e.lengthComputable = oe.lengthComputable; + e.loaded = oe.loaded; + e.total = oe.total; + that._onProgress(e, options); + }); + options.xhr = function () { + return xhr; + }; + } + }, + + _isInstanceOf: function (type, obj) { + // Cross-frame instanceof check + return Object.prototype.toString.call(obj) === '[object ' + type + ']'; + }, + + _initXHRData: function (options) { + var that = this, + formData, + file = options.files[0], + // Ignore non-multipart setting if not supported: + multipart = options.multipart || !$.support.xhrFileUpload, + paramName = $.type(options.paramName) === 'array' ? + options.paramName[0] : options.paramName; + options.headers = $.extend({}, options.headers); + if (options.contentRange) { + options.headers['Content-Range'] = options.contentRange; + } + if (!multipart || options.blob || !this._isInstanceOf('File', file)) { + options.headers['Content-Disposition'] = 'attachment; filename="' + + encodeURI(file.name) + '"'; + } + if (!multipart) { + options.contentType = file.type || 'application/octet-stream'; + options.data = options.blob || file; + } else if ($.support.xhrFormDataFileUpload) { + if (options.postMessage) { + // window.postMessage does not allow sending FormData + // objects, so we just add the File/Blob objects to + // the formData array and let the postMessage window + // create the FormData object out of this array: + formData = this._getFormData(options); + if (options.blob) { + formData.push({ + name: paramName, + value: options.blob + }); + } else { + $.each(options.files, function (index, file) { + formData.push({ + name: ($.type(options.paramName) === 'array' && + options.paramName[index]) || paramName, + value: file + }); + }); + } + } else { + if (that._isInstanceOf('FormData', options.formData)) { + formData = options.formData; + } else { + formData = new FormData(); + $.each(this._getFormData(options), function (index, field) { + formData.append(field.name, field.value); + }); + } + if (options.blob) { + formData.append(paramName, options.blob, file.name); + } else { + $.each(options.files, function (index, file) { + // This check allows the tests to run with + // dummy objects: + if (that._isInstanceOf('File', file) || + that._isInstanceOf('Blob', file)) { + formData.append( + ($.type(options.paramName) === 'array' && + options.paramName[index]) || paramName, + file, + file.uploadName || file.name + ); + } + }); + } + } + options.data = formData; + } + // Blob reference is not needed anymore, free memory: + options.blob = null; + }, + + _initIframeSettings: function (options) { + var targetHost = $('').prop('href', options.url).prop('host'); + // Setting the dataType to iframe enables the iframe transport: + options.dataType = 'iframe ' + (options.dataType || ''); + // The iframe transport accepts a serialized array as form data: + options.formData = this._getFormData(options); + // Add redirect url to form data on cross-domain uploads: + if (options.redirect && targetHost && targetHost !== location.host) { + options.formData.push({ + name: options.redirectParamName || 'redirect', + value: options.redirect + }); + } + }, + + _initDataSettings: function (options) { + if (this._isXHRUpload(options)) { + if (!this._chunkedUpload(options, true)) { + if (!options.data) { + this._initXHRData(options); + } + this._initProgressListener(options); + } + if (options.postMessage) { + // Setting the dataType to postmessage enables the + // postMessage transport: + options.dataType = 'postmessage ' + (options.dataType || ''); + } + } else { + this._initIframeSettings(options); + } + }, + + _getParamName: function (options) { + var fileInput = $(options.fileInput), + paramName = options.paramName; + if (!paramName) { + paramName = []; + fileInput.each(function () { + var input = $(this), + name = input.prop('name') || 'files[]', + i = (input.prop('files') || [1]).length; + while (i) { + paramName.push(name); + i -= 1; + } + }); + if (!paramName.length) { + paramName = [fileInput.prop('name') || 'files[]']; + } + } else if (!$.isArray(paramName)) { + paramName = [paramName]; + } + return paramName; + }, + + _initFormSettings: function (options) { + // Retrieve missing options from the input field and the + // associated form, if available: + if (!options.form || !options.form.length) { + options.form = $(options.fileInput.prop('form')); + // If the given file input doesn't have an associated form, + // use the default widget file input's form: + if (!options.form.length) { + options.form = $(this.options.fileInput.prop('form')); + } + } + options.paramName = this._getParamName(options); + if (!options.url) { + options.url = options.form.prop('action') || location.href; + } + // The HTTP request method must be "POST" or "PUT": + options.type = (options.type || + ($.type(options.form.prop('method')) === 'string' && + options.form.prop('method')) || '' + ).toUpperCase(); + if (options.type !== 'POST' && options.type !== 'PUT' && + options.type !== 'PATCH') { + options.type = 'POST'; + } + if (!options.formAcceptCharset) { + options.formAcceptCharset = options.form.attr('accept-charset'); + } + }, + + _getAJAXSettings: function (data) { + var options = $.extend({}, this.options, data); + this._initFormSettings(options); + this._initDataSettings(options); + return options; + }, + + // jQuery 1.6 doesn't provide .state(), + // while jQuery 1.8+ removed .isRejected() and .isResolved(): + _getDeferredState: function (deferred) { + if (deferred.state) { + return deferred.state(); + } + if (deferred.isResolved()) { + return 'resolved'; + } + if (deferred.isRejected()) { + return 'rejected'; + } + return 'pending'; + }, + + // Maps jqXHR callbacks to the equivalent + // methods of the given Promise object: + _enhancePromise: function (promise) { + promise.success = promise.done; + promise.error = promise.fail; + promise.complete = promise.always; + return promise; + }, + + // Creates and returns a Promise object enhanced with + // the jqXHR methods abort, success, error and complete: + _getXHRPromise: function (resolveOrReject, context, args) { + var dfd = $.Deferred(), + promise = dfd.promise(); + context = context || this.options.context || promise; + if (resolveOrReject === true) { + dfd.resolveWith(context, args); + } else if (resolveOrReject === false) { + dfd.rejectWith(context, args); + } + promise.abort = dfd.promise; + return this._enhancePromise(promise); + }, + + // Adds convenience methods to the data callback argument: + _addConvenienceMethods: function (e, data) { + var that = this, + getPromise = function (args) { + return $.Deferred().resolveWith(that, args).promise(); + }; + data.process = function (resolveFunc, rejectFunc) { + if (resolveFunc || rejectFunc) { + data._processQueue = this._processQueue = + (this._processQueue || getPromise([this])).pipe( + function () { + if (data.errorThrown) { + return $.Deferred() + .rejectWith(that, [data]).promise(); + } + return getPromise(arguments); + } + ).pipe(resolveFunc, rejectFunc); + } + return this._processQueue || getPromise([this]); + }; + data.submit = function () { + if (this.state() !== 'pending') { + data.jqXHR = this.jqXHR = + (that._trigger( + 'submit', + $.Event('submit', {delegatedEvent: e}), + this + ) !== false) && that._onSend(e, this); + } + return this.jqXHR || that._getXHRPromise(); + }; + data.abort = function () { + if (this.jqXHR) { + return this.jqXHR.abort(); + } + this.errorThrown = 'abort'; + that._trigger('fail', null, this); + return that._getXHRPromise(false); + }; + data.state = function () { + if (this.jqXHR) { + return that._getDeferredState(this.jqXHR); + } + if (this._processQueue) { + return that._getDeferredState(this._processQueue); + } + }; + data.processing = function () { + return !this.jqXHR && this._processQueue && that + ._getDeferredState(this._processQueue) === 'pending'; + }; + data.progress = function () { + return this._progress; + }; + data.response = function () { + return this._response; + }; + }, + + // Parses the Range header from the server response + // and returns the uploaded bytes: + _getUploadedBytes: function (jqXHR) { + var range = jqXHR.getResponseHeader('Range'), + parts = range && range.split('-'), + upperBytesPos = parts && parts.length > 1 && + parseInt(parts[1], 10); + return upperBytesPos && upperBytesPos + 1; + }, + + // Uploads a file in multiple, sequential requests + // by splitting the file up in multiple blob chunks. + // If the second parameter is true, only tests if the file + // should be uploaded in chunks, but does not invoke any + // upload requests: + _chunkedUpload: function (options, testOnly) { + options.uploadedBytes = options.uploadedBytes || 0; + var that = this, + file = options.files[0], + fs = file.size, + ub = options.uploadedBytes, + mcs = options.maxChunkSize || fs, + slice = this._blobSlice, + dfd = $.Deferred(), + promise = dfd.promise(), + jqXHR, + upload; + if (!(this._isXHRUpload(options) && slice && (ub || mcs < fs)) || + options.data) { + return false; + } + if (testOnly) { + return true; + } + if (ub >= fs) { + file.error = options.i18n('uploadedBytes'); + return this._getXHRPromise( + false, + options.context, + [null, 'error', file.error] + ); + } + // The chunk upload method: + upload = function () { + // Clone the options object for each chunk upload: + var o = $.extend({}, options), + currentLoaded = o._progress.loaded; + o.blob = slice.call( + file, + ub, + ub + mcs, + file.type + ); + // Store the current chunk size, as the blob itself + // will be dereferenced after data processing: + o.chunkSize = o.blob.size; + // Expose the chunk bytes position range: + o.contentRange = 'bytes ' + ub + '-' + + (ub + o.chunkSize - 1) + '/' + fs; + // Process the upload data (the blob and potential form data): + that._initXHRData(o); + // Add progress listeners for this chunk upload: + that._initProgressListener(o); + jqXHR = ((that._trigger('chunksend', null, o) !== false && $.ajax(o)) || + that._getXHRPromise(false, o.context)) + .done(function (result, textStatus, jqXHR) { + ub = that._getUploadedBytes(jqXHR) || + (ub + o.chunkSize); + // Create a progress event if no final progress event + // with loaded equaling total has been triggered + // for this chunk: + if (currentLoaded + o.chunkSize - o._progress.loaded) { + that._onProgress($.Event('progress', { + lengthComputable: true, + loaded: ub - o.uploadedBytes, + total: ub - o.uploadedBytes + }), o); + } + options.uploadedBytes = o.uploadedBytes = ub; + o.result = result; + o.textStatus = textStatus; + o.jqXHR = jqXHR; + that._trigger('chunkdone', null, o); + that._trigger('chunkalways', null, o); + if (ub < fs) { + // File upload not yet complete, + // continue with the next chunk: + upload(); + } else { + dfd.resolveWith( + o.context, + [result, textStatus, jqXHR] + ); + } + }) + .fail(function (jqXHR, textStatus, errorThrown) { + o.jqXHR = jqXHR; + o.textStatus = textStatus; + o.errorThrown = errorThrown; + that._trigger('chunkfail', null, o); + that._trigger('chunkalways', null, o); + dfd.rejectWith( + o.context, + [jqXHR, textStatus, errorThrown] + ); + }); + }; + this._enhancePromise(promise); + promise.abort = function () { + return jqXHR.abort(); + }; + upload(); + return promise; + }, + + _beforeSend: function (e, data) { + if (this._active === 0) { + // the start callback is triggered when an upload starts + // and no other uploads are currently running, + // equivalent to the global ajaxStart event: + this._trigger('start'); + // Set timer for global bitrate progress calculation: + this._bitrateTimer = new this._BitrateTimer(); + // Reset the global progress values: + this._progress.loaded = this._progress.total = 0; + this._progress.bitrate = 0; + } + // Make sure the container objects for the .response() and + // .progress() methods on the data object are available + // and reset to their initial state: + this._initResponseObject(data); + this._initProgressObject(data); + data._progress.loaded = data.loaded = data.uploadedBytes || 0; + data._progress.total = data.total = this._getTotal(data.files) || 1; + data._progress.bitrate = data.bitrate = 0; + this._active += 1; + // Initialize the global progress values: + this._progress.loaded += data.loaded; + this._progress.total += data.total; + }, + + _onDone: function (result, textStatus, jqXHR, options) { + var total = options._progress.total, + response = options._response; + if (options._progress.loaded < total) { + // Create a progress event if no final progress event + // with loaded equaling total has been triggered: + this._onProgress($.Event('progress', { + lengthComputable: true, + loaded: total, + total: total + }), options); + } + response.result = options.result = result; + response.textStatus = options.textStatus = textStatus; + response.jqXHR = options.jqXHR = jqXHR; + this._trigger('done', null, options); + }, + + _onFail: function (jqXHR, textStatus, errorThrown, options) { + var response = options._response; + if (options.recalculateProgress) { + // Remove the failed (error or abort) file upload from + // the global progress calculation: + this._progress.loaded -= options._progress.loaded; + this._progress.total -= options._progress.total; + } + response.jqXHR = options.jqXHR = jqXHR; + response.textStatus = options.textStatus = textStatus; + response.errorThrown = options.errorThrown = errorThrown; + this._trigger('fail', null, options); + }, + + _onAlways: function (jqXHRorResult, textStatus, jqXHRorError, options) { + // jqXHRorResult, textStatus and jqXHRorError are added to the + // options object via done and fail callbacks + this._trigger('always', null, options); + }, + + _onSend: function (e, data) { + if (!data.submit) { + this._addConvenienceMethods(e, data); + } + var that = this, + jqXHR, + aborted, + slot, + pipe, + options = that._getAJAXSettings(data), + send = function () { + that._sending += 1; + // Set timer for bitrate progress calculation: + options._bitrateTimer = new that._BitrateTimer(); + jqXHR = jqXHR || ( + ((aborted || that._trigger( + 'send', + $.Event('send', {delegatedEvent: e}), + options + ) === false) && + that._getXHRPromise(false, options.context, aborted)) || + that._chunkedUpload(options) || $.ajax(options) + ).done(function (result, textStatus, jqXHR) { + that._onDone(result, textStatus, jqXHR, options); + }).fail(function (jqXHR, textStatus, errorThrown) { + that._onFail(jqXHR, textStatus, errorThrown, options); + }).always(function (jqXHRorResult, textStatus, jqXHRorError) { + that._onAlways( + jqXHRorResult, + textStatus, + jqXHRorError, + options + ); + that._sending -= 1; + that._active -= 1; + if (options.limitConcurrentUploads && + options.limitConcurrentUploads > that._sending) { + // Start the next queued upload, + // that has not been aborted: + var nextSlot = that._slots.shift(); + while (nextSlot) { + if (that._getDeferredState(nextSlot) === 'pending') { + nextSlot.resolve(); + break; + } + nextSlot = that._slots.shift(); + } + } + if (that._active === 0) { + // The stop callback is triggered when all uploads have + // been completed, equivalent to the global ajaxStop event: + that._trigger('stop'); + } + }); + return jqXHR; + }; + this._beforeSend(e, options); + if (this.options.sequentialUploads || + (this.options.limitConcurrentUploads && + this.options.limitConcurrentUploads <= this._sending)) { + if (this.options.limitConcurrentUploads > 1) { + slot = $.Deferred(); + this._slots.push(slot); + pipe = slot.pipe(send); + } else { + this._sequence = this._sequence.pipe(send, send); + pipe = this._sequence; + } + // Return the piped Promise object, enhanced with an abort method, + // which is delegated to the jqXHR object of the current upload, + // and jqXHR callbacks mapped to the equivalent Promise methods: + pipe.abort = function () { + aborted = [undefined, 'abort', 'abort']; + if (!jqXHR) { + if (slot) { + slot.rejectWith(options.context, aborted); + } + return send(); + } + return jqXHR.abort(); + }; + return this._enhancePromise(pipe); + } + return send(); + }, + + _onAdd: function (e, data) { + var that = this, + result = true, + options = $.extend({}, this.options, data), + files = data.files, + filesLength = files.length, + limit = options.limitMultiFileUploads, + limitSize = options.limitMultiFileUploadSize, + overhead = options.limitMultiFileUploadSizeOverhead, + batchSize = 0, + paramName = this._getParamName(options), + paramNameSet, + paramNameSlice, + fileSet, + i, + j = 0; + if (limitSize && (!filesLength || files[0].size === undefined)) { + limitSize = undefined; + } + if (!(options.singleFileUploads || limit || limitSize) || + !this._isXHRUpload(options)) { + fileSet = [files]; + paramNameSet = [paramName]; + } else if (!(options.singleFileUploads || limitSize) && limit) { + fileSet = []; + paramNameSet = []; + for (i = 0; i < filesLength; i += limit) { + fileSet.push(files.slice(i, i + limit)); + paramNameSlice = paramName.slice(i, i + limit); + if (!paramNameSlice.length) { + paramNameSlice = paramName; + } + paramNameSet.push(paramNameSlice); + } + } else if (!options.singleFileUploads && limitSize) { + fileSet = []; + paramNameSet = []; + for (i = 0; i < filesLength; i = i + 1) { + batchSize += files[i].size + overhead; + if (i + 1 === filesLength || + ((batchSize + files[i + 1].size + overhead) > limitSize) || + (limit && i + 1 - j >= limit)) { + fileSet.push(files.slice(j, i + 1)); + paramNameSlice = paramName.slice(j, i + 1); + if (!paramNameSlice.length) { + paramNameSlice = paramName; + } + paramNameSet.push(paramNameSlice); + j = i + 1; + batchSize = 0; + } + } + } else { + paramNameSet = paramName; + } + data.originalFiles = files; + $.each(fileSet || files, function (index, element) { + var newData = $.extend({}, data); + newData.files = fileSet ? element : [element]; + newData.paramName = paramNameSet[index]; + that._initResponseObject(newData); + that._initProgressObject(newData); + that._addConvenienceMethods(e, newData); + result = that._trigger( + 'add', + $.Event('add', {delegatedEvent: e}), + newData + ); + return result; + }); + return result; + }, + + _replaceFileInput: function (data) { + var input = data.fileInput, + inputClone = input.clone(true); + // Add a reference for the new cloned file input to the data argument: + data.fileInputClone = inputClone; + $('
').append(inputClone)[0].reset(); + // Detaching allows to insert the fileInput on another form + // without loosing the file input value: + input.after(inputClone).detach(); + // Avoid memory leaks with the detached file input: + $.cleanData(input.unbind('remove')); + // Replace the original file input element in the fileInput + // elements set with the clone, which has been copied including + // event handlers: + this.options.fileInput = this.options.fileInput.map(function (i, el) { + if (el === input[0]) { + return inputClone[0]; + } + return el; + }); + // If the widget has been initialized on the file input itself, + // override this.element with the file input clone: + if (input[0] === this.element[0]) { + this.element = inputClone; + } + }, + + _handleFileTreeEntry: function (entry, path) { + var that = this, + dfd = $.Deferred(), + errorHandler = function (e) { + if (e && !e.entry) { + e.entry = entry; + } + // Since $.when returns immediately if one + // Deferred is rejected, we use resolve instead. + // This allows valid files and invalid items + // to be returned together in one set: + dfd.resolve([e]); + }, + successHandler = function (entries) { + that._handleFileTreeEntries( + entries, + path + entry.name + '/' + ).done(function (files) { + dfd.resolve(files); + }).fail(errorHandler); + }, + readEntries = function () { + dirReader.readEntries(function (results) { + if (!results.length) { + successHandler(entries); + } else { + entries = entries.concat(results); + readEntries(); + } + }, errorHandler); + }, + dirReader, entries = []; + path = path || ''; + if (entry.isFile) { + if (entry._file) { + // Workaround for Chrome bug #149735 + entry._file.relativePath = path; + dfd.resolve(entry._file); + } else { + entry.file(function (file) { + file.relativePath = path; + dfd.resolve(file); + }, errorHandler); + } + } else if (entry.isDirectory) { + dirReader = entry.createReader(); + readEntries(); + } else { + // Return an empy list for file system items + // other than files or directories: + dfd.resolve([]); + } + return dfd.promise(); + }, + + _handleFileTreeEntries: function (entries, path) { + var that = this; + return $.when.apply( + $, + $.map(entries, function (entry) { + return that._handleFileTreeEntry(entry, path); + }) + ).pipe(function () { + return Array.prototype.concat.apply( + [], + arguments + ); + }); + }, + + _getDroppedFiles: function (dataTransfer) { + dataTransfer = dataTransfer || {}; + var items = dataTransfer.items; + if (items && items.length && (items[0].webkitGetAsEntry || + items[0].getAsEntry)) { + return this._handleFileTreeEntries( + $.map(items, function (item) { + var entry; + if (item.webkitGetAsEntry) { + entry = item.webkitGetAsEntry(); + if (entry) { + // Workaround for Chrome bug #149735: + entry._file = item.getAsFile(); + } + return entry; + } + return item.getAsEntry(); + }) + ); + } + return $.Deferred().resolve( + $.makeArray(dataTransfer.files) + ).promise(); + }, + + _getSingleFileInputFiles: function (fileInput) { + fileInput = $(fileInput); + var entries = fileInput.prop('webkitEntries') || + fileInput.prop('entries'), + files, + value; + if (entries && entries.length) { + return this._handleFileTreeEntries(entries); + } + files = $.makeArray(fileInput.prop('files')); + if (!files.length) { + value = fileInput.prop('value'); + if (!value) { + return $.Deferred().resolve([]).promise(); + } + // If the files property is not available, the browser does not + // support the File API and we add a pseudo File object with + // the input value as name with path information removed: + files = [{name: value.replace(/^.*\\/, '')}]; + } else if (files[0].name === undefined && files[0].fileName) { + // File normalization for Safari 4 and Firefox 3: + $.each(files, function (index, file) { + file.name = file.fileName; + file.size = file.fileSize; + }); + } + return $.Deferred().resolve(files).promise(); + }, + + _getFileInputFiles: function (fileInput) { + if (!(fileInput instanceof $) || fileInput.length === 1) { + return this._getSingleFileInputFiles(fileInput); + } + return $.when.apply( + $, + $.map(fileInput, this._getSingleFileInputFiles) + ).pipe(function () { + return Array.prototype.concat.apply( + [], + arguments + ); + }); + }, + + _onChange: function (e) { + var that = this, + data = { + fileInput: $(e.target), + form: $(e.target.form) + }; + this._getFileInputFiles(data.fileInput).always(function (files) { + data.files = files; + if (that.options.replaceFileInput) { + that._replaceFileInput(data); + } + if (that._trigger( + 'change', + $.Event('change', {delegatedEvent: e}), + data + ) !== false) { + that._onAdd(e, data); + } + }); + }, + + _onPaste: function (e) { + var items = e.originalEvent && e.originalEvent.clipboardData && + e.originalEvent.clipboardData.items, + data = {files: []}; + if (items && items.length) { + $.each(items, function (index, item) { + var file = item.getAsFile && item.getAsFile(); + if (file) { + data.files.push(file); + } + }); + if (this._trigger( + 'paste', + $.Event('paste', {delegatedEvent: e}), + data + ) !== false) { + this._onAdd(e, data); + } + } + }, + + _onDrop: function (e) { + e.dataTransfer = e.originalEvent && e.originalEvent.dataTransfer; + var that = this, + dataTransfer = e.dataTransfer, + data = {}; + if (dataTransfer && dataTransfer.files && dataTransfer.files.length) { + e.preventDefault(); + this._getDroppedFiles(dataTransfer).always(function (files) { + data.files = files; + if (that._trigger( + 'drop', + $.Event('drop', {delegatedEvent: e}), + data + ) !== false) { + that._onAdd(e, data); + } + }); + } + }, + + _onDragOver: getDragHandler('dragover'), + + _onDragEnter: getDragHandler('dragenter'), + + _onDragLeave: getDragHandler('dragleave'), + + _initEventHandlers: function () { + if (this._isXHRUpload(this.options)) { + this._on(this.options.dropZone, { + dragover: this._onDragOver, + drop: this._onDrop, + // event.preventDefault() on dragenter is required for IE10+: + dragenter: this._onDragEnter, + // dragleave is not required, but added for completeness: + dragleave: this._onDragLeave + }); + this._on(this.options.pasteZone, { + paste: this._onPaste + }); + } + if ($.support.fileInput) { + this._on(this.options.fileInput, { + change: this._onChange + }); + } + }, + + _destroyEventHandlers: function () { + this._off(this.options.dropZone, 'dragenter dragleave dragover drop'); + this._off(this.options.pasteZone, 'paste'); + this._off(this.options.fileInput, 'change'); + }, + + _setOption: function (key, value) { + var reinit = $.inArray(key, this._specialOptions) !== -1; + if (reinit) { + this._destroyEventHandlers(); + } + this._super(key, value); + if (reinit) { + this._initSpecialOptions(); + this._initEventHandlers(); + } + }, + + _initSpecialOptions: function () { + var options = this.options; + if (options.fileInput === undefined) { + options.fileInput = this.element.is('input[type="file"]') ? + this.element : this.element.find('input[type="file"]'); + } else if (!(options.fileInput instanceof $)) { + options.fileInput = $(options.fileInput); + } + if (!(options.dropZone instanceof $)) { + options.dropZone = $(options.dropZone); + } + if (!(options.pasteZone instanceof $)) { + options.pasteZone = $(options.pasteZone); + } + }, + + _getRegExp: function (str) { + var parts = str.split('/'), + modifiers = parts.pop(); + parts.shift(); + return new RegExp(parts.join('/'), modifiers); + }, + + _isRegExpOption: function (key, value) { + return key !== 'url' && $.type(value) === 'string' && + /^\/.*\/[igm]{0,3}$/.test(value); + }, + + _initDataAttributes: function () { + var that = this, + options = this.options, + clone = $(this.element[0].cloneNode(false)), + data = clone.data(); + // Avoid memory leaks: + clone.remove(); + // Initialize options set via HTML5 data-attributes: + $.each( + data, + function (key, value) { + var dataAttributeName = 'data-' + + // Convert camelCase to hyphen-ated key: + key.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase(); + if (clone.attr(dataAttributeName)) { + if (that._isRegExpOption(key, value)) { + value = that._getRegExp(value); + } + options[key] = value; + } + } + ); + }, + + _create: function () { + this._initDataAttributes(); + this._initSpecialOptions(); + this._slots = []; + this._sequence = this._getXHRPromise(true); + this._sending = this._active = 0; + this._initProgressObject(this); + this._initEventHandlers(); + }, + + // This method is exposed to the widget API and allows to query + // the number of active uploads: + active: function () { + return this._active; + }, + + // This method is exposed to the widget API and allows to query + // the widget upload progress. + // It returns an object with loaded, total and bitrate properties + // for the running uploads: + progress: function () { + return this._progress; + }, + + // This method is exposed to the widget API and allows adding files + // using the fileupload API. The data parameter accepts an object which + // must have a files property and can contain additional options: + // .fileupload('add', {files: filesList}); + add: function (data) { + var that = this; + if (!data || this.options.disabled) { + return; + } + if (data.fileInput && !data.files) { + this._getFileInputFiles(data.fileInput).always(function (files) { + data.files = files; + that._onAdd(null, data); + }); + } else { + data.files = $.makeArray(data.files); + this._onAdd(null, data); + } + }, + + // This method is exposed to the widget API and allows sending files + // using the fileupload API. The data parameter accepts an object which + // must have a files or fileInput property and can contain additional options: + // .fileupload('send', {files: filesList}); + // The method returns a Promise object for the file upload call. + send: function (data) { + if (data && !this.options.disabled) { + if (data.fileInput && !data.files) { + var that = this, + dfd = $.Deferred(), + promise = dfd.promise(), + jqXHR, + aborted; + promise.abort = function () { + aborted = true; + if (jqXHR) { + return jqXHR.abort(); + } + dfd.reject(null, 'abort', 'abort'); + return promise; + }; + this._getFileInputFiles(data.fileInput).always( + function (files) { + if (aborted) { + return; + } + if (!files.length) { + dfd.reject(); + return; + } + data.files = files; + jqXHR = that._onSend(null, data); + jqXHR.then( + function (result, textStatus, jqXHR) { + dfd.resolve(result, textStatus, jqXHR); + }, + function (jqXHR, textStatus, errorThrown) { + dfd.reject(jqXHR, textStatus, errorThrown); + } + ); + } + ); + return this._enhancePromise(promise); + } + data.files = $.makeArray(data.files); + if (data.files.length) { + return this._onSend(null, data); + } + } + return this._getXHRPromise(false, data && data.context); + } + + }); + +})); diff --git a/akarpov/static/js/jquery.iframe-transport.js b/akarpov/static/js/jquery.iframe-transport.js new file mode 100644 index 0000000..b7581f2 --- /dev/null +++ b/akarpov/static/js/jquery.iframe-transport.js @@ -0,0 +1,217 @@ +/* + * jQuery Iframe Transport Plugin 1.8.3 + * https://github.com/blueimp/jQuery-File-Upload + * + * Copyright 2011, Sebastian Tschan + * https://blueimp.net + * + * Licensed under the MIT license: + * http://www.opensource.org/licenses/MIT + */ + +/* global define, require, window, document */ + +(function (factory) { + 'use strict'; + if (typeof define === 'function' && define.amd) { + // Register as an anonymous AMD module: + define(['jquery'], factory); + } else if (typeof exports === 'object') { + // Node/CommonJS: + factory(require('jquery')); + } else { + // Browser globals: + factory(window.jQuery); + } +}(function ($) { + 'use strict'; + + // Helper variable to create unique names for the transport iframes: + var counter = 0; + + // The iframe transport accepts four additional options: + // options.fileInput: a jQuery collection of file input fields + // options.paramName: the parameter name for the file form data, + // overrides the name property of the file input field(s), + // can be a string or an array of strings. + // options.formData: an array of objects with name and value properties, + // equivalent to the return data of .serializeArray(), e.g.: + // [{name: 'a', value: 1}, {name: 'b', value: 2}] + // options.initialIframeSrc: the URL of the initial iframe src, + // by default set to "javascript:false;" + $.ajaxTransport('iframe', function (options) { + if (options.async) { + // javascript:false as initial iframe src + // prevents warning popups on HTTPS in IE6: + /*jshint scripturl: true */ + var initialIframeSrc = options.initialIframeSrc || 'javascript:false;', + /*jshint scripturl: false */ + form, + iframe, + addParamChar; + return { + send: function (_, completeCallback) { + form = $('
'); + form.attr('accept-charset', options.formAcceptCharset); + addParamChar = /\?/.test(options.url) ? '&' : '?'; + // XDomainRequest only supports GET and POST: + if (options.type === 'DELETE') { + options.url = options.url + addParamChar + '_method=DELETE'; + options.type = 'POST'; + } else if (options.type === 'PUT') { + options.url = options.url + addParamChar + '_method=PUT'; + options.type = 'POST'; + } else if (options.type === 'PATCH') { + options.url = options.url + addParamChar + '_method=PATCH'; + options.type = 'POST'; + } + // IE versions below IE8 cannot set the name property of + // elements that have already been added to the DOM, + // so we set the name along with the iframe HTML markup: + counter += 1; + iframe = $( + '' + ).bind('load', function () { + var fileInputClones, + paramNames = $.isArray(options.paramName) ? + options.paramName : [options.paramName]; + iframe + .unbind('load') + .bind('load', function () { + var response; + // Wrap in a try/catch block to catch exceptions thrown + // when trying to access cross-domain iframe contents: + try { + response = iframe.contents(); + // Google Chrome and Firefox do not throw an + // exception when calling iframe.contents() on + // cross-domain requests, so we unify the response: + if (!response.length || !response[0].firstChild) { + throw new Error(); + } + } catch (e) { + response = undefined; + } + // The complete callback returns the + // iframe content document as response object: + completeCallback( + 200, + 'success', + {'iframe': response} + ); + // Fix for IE endless progress bar activity bug + // (happens on form submits to iframe targets): + $('') + .appendTo(form); + window.setTimeout(function () { + // Removing the form in a setTimeout call + // allows Chrome's developer tools to display + // the response result + form.remove(); + }, 0); + }); + form + .prop('target', iframe.prop('name')) + .prop('action', options.url) + .prop('method', options.type); + if (options.formData) { + $.each(options.formData, function (index, field) { + $('') + .prop('name', field.name) + .val(field.value) + .appendTo(form); + }); + } + if (options.fileInput && options.fileInput.length && + options.type === 'POST') { + fileInputClones = options.fileInput.clone(); + // Insert a clone for each file input field: + options.fileInput.after(function (index) { + return fileInputClones[index]; + }); + if (options.paramName) { + options.fileInput.each(function (index) { + $(this).prop( + 'name', + paramNames[index] || options.paramName + ); + }); + } + // Appending the file input fields to the hidden form + // removes them from their original location: + form + .append(options.fileInput) + .prop('enctype', 'multipart/form-data') + // enctype must be set as encoding for IE: + .prop('encoding', 'multipart/form-data'); + // Remove the HTML5 form attribute from the input(s): + options.fileInput.removeAttr('form'); + } + form.submit(); + // Insert the file input fields at their original location + // by replacing the clones with the originals: + if (fileInputClones && fileInputClones.length) { + options.fileInput.each(function (index, input) { + var clone = $(fileInputClones[index]); + // Restore the original name and form properties: + $(input) + .prop('name', clone.prop('name')) + .attr('form', clone.attr('form')); + clone.replaceWith(input); + }); + } + }); + form.append(iframe).appendTo(document.body); + }, + abort: function () { + if (iframe) { + // javascript:false as iframe src aborts the request + // and prevents warning popups on HTTPS in IE6. + // concat is used to avoid the "Script URL" JSLint error: + iframe + .unbind('load') + .prop('src', initialIframeSrc); + } + if (form) { + form.remove(); + } + } + }; + } + }); + + // The iframe transport returns the iframe content document as response. + // The following adds converters from iframe to text, json, html, xml + // and script. + // Please note that the Content-Type for JSON responses has to be text/plain + // or text/html, if the browser doesn't include application/json in the + // Accept header, else IE will show a download dialog. + // The Content-Type for XML responses on the other hand has to be always + // application/xml or text/xml, so IE properly parses the XML response. + // See also + // https://github.com/blueimp/jQuery-File-Upload/wiki/Setup#content-type-negotiation + $.ajaxSetup({ + converters: { + 'iframe text': function (iframe) { + return iframe && $(iframe[0].body).text(); + }, + 'iframe json': function (iframe) { + return iframe && $.parseJSON($(iframe[0].body).text()); + }, + 'iframe html': function (iframe) { + return iframe && $(iframe[0].body).html(); + }, + 'iframe xml': function (iframe) { + var xmlDoc = iframe && iframe[0]; + return xmlDoc && $.isXMLDoc(xmlDoc) ? xmlDoc : + $.parseXML((xmlDoc.XMLDocument && xmlDoc.XMLDocument.xml) || + $(xmlDoc.body).html()); + }, + 'iframe script': function (iframe) { + return iframe && $.globalEval($(iframe[0].body).text()); + } + } + }); + +})); diff --git a/akarpov/static/js/jquery.js 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