Ticket #2070: modpyton-ok-needs-fcgi-testing.3.diff

File modpyton-ok-needs-fcgi-testing.3.diff, 28.6 KB (added by Øyvind Saltvik <oyvind.saltvik@…>, 17 years ago)

did not work without middleware, fixed

  • django/http/__init__.py

     
    11import os
     2import cgi
    23from Cookie import SimpleCookie
    34from pprint import pformat
    45from urllib import urlencode, quote
     
    4243    def is_secure(self):
    4344        return os.environ.get("HTTPS") == "on"
    4445
    45 def parse_file_upload(header_dict, post_data):
     46def default_parse_file_upload(req):
    4647    "Returns a tuple of (POST MultiValueDict, FILES MultiValueDict)"
    4748    import email, email.Message
    4849    from cgi import parse_header
    49     raw_message = '\r\n'.join(['%s:%s' % pair for pair in header_dict.items()])
    50     raw_message += '\r\n\r\n' + post_data
     50    raw_message = '\r\n'.join(['%s:%s' % pair for pair in req.header_dict.items()])
     51    raw_message += '\r\n\r\n' + req.raw_post_data
    5152    msg = email.message_from_string(raw_message)
    5253    POST = MultiValueDict()
    5354    FILES = MultiValueDict()
     
    7374                POST.appendlist(name_dict['name'], submessage.get_payload())
    7475    return POST, FILES
    7576
     77def parse_file_upload(req):
     78    "Returns a tuple of (POST MultiValueDict, FILES MultiValueDict)"
     79
     80    if hasattr(req, 'parse_file_upload'):
     81        return req.parse_file_upload(req)
     82
     83    return default_parse_file_upload(req)
     84
    7685class QueryDict(MultiValueDict):
    7786    """A specialized MultiValueDict that takes a query string when initialized.
    7887    This is immutable unless you create a copy of it."""
  • django/oldforms/__init__.py

     
    661661        self.validator_list = [self.isNonEmptyFile] + validator_list
    662662
    663663    def isNonEmptyFile(self, field_data, all_data):
     664        if not isinstance(field_data, dict):
     665            raise validators.CriticalValidationError, gettext("No file was submitted. Check the encoding type on the form.")
    664666        try:
     667            content = field_data.tell()>0
     668        except:
    665669            content = field_data['content']
    666         except TypeError:
    667             raise validators.CriticalValidationError, gettext("No file was submitted. Check the encoding type on the form.")
    668670        if not content:
    669671            raise validators.CriticalValidationError, gettext("The submitted file is empty.")
    670672
  • django/db/models/base.py

     
    322322    def _get_FIELD_size(self, field):
    323323        return os.path.getsize(self._get_FIELD_filename(field))
    324324
    325     def _save_FIELD_file(self, field, filename, raw_contents):
     325    def _save_FIELD_file(self, field, filename, raw_field):
    326326        directory = field.get_directory_name()
    327327        try: # Create the date-based directory if it doesn't exist.
    328328            os.makedirs(os.path.join(settings.MEDIA_ROOT, directory))
     
    344344        setattr(self, field.attname, filename)
    345345
    346346        full_filename = self._get_FIELD_filename(field)
    347         fp = open(full_filename, 'wb')
    348         fp.write(raw_contents)
    349         fp.close()
     347        if not raw_field.get('payload', False):
     348            fp = open(full_filename, 'wb')
     349            fp.write(raw_field['content'])
     350            fp.close()
     351        else:
     352            os.rename(raw_field['payload']['name'], full_filename)
    350353
    351354        # Save the width and/or height, if applicable.
    352355        if isinstance(field, ImageField) and (field.width_field or field.height_field):
  • django/db/models/fields/__init__.py

     
    648648        if new_data.get(upload_field_name, False):
    649649            func = getattr(new_object, 'save_%s_file' % self.name)
    650650            if rel:
    651                 func(new_data[upload_field_name][0]["filename"], new_data[upload_field_name][0]["content"])
     651                func(new_data[upload_field_name][0]["filename"], new_data[upload_field_name][0])
    652652            else:
    653                 func(new_data[upload_field_name]["filename"], new_data[upload_field_name]["content"])
     653                func(new_data[upload_field_name]["filename"], new_data[upload_field_name])
    654654
    655655    def get_directory_name(self):
    656656        return os.path.normpath(datetime.datetime.now().strftime(self.upload_to))
  • django/core/handlers/wsgi.py

     
    109109        # Populates self._post and self._files
    110110        if self.method == 'POST':
    111111            if self.environ.get('CONTENT_TYPE', '').startswith('multipart'):
    112                 header_dict = dict([(k, v) for k, v in self.environ.items() if k.startswith('HTTP_')])
    113                 header_dict['Content-Type'] = self.environ.get('CONTENT_TYPE', '')
    114                 self._post, self._files = http.parse_file_upload(header_dict, self.raw_post_data)
     112                self._post, self._files = http.parse_file_upload(self)
    115113            else:
    116114                self._post, self._files = http.QueryDict(self.raw_post_data), datastructures.MultiValueDict()
    117115        else:
     
    166164            self._raw_post_data = buf.getvalue()
    167165            buf.close()
    168166            return self._raw_post_data
     167   
     168    def _get_raw_request(self):
     169        return self.environ['wsgi.input']
    169170
     171    def _get_header_dict(self):
     172        header_dict = dict([(k, v) for k, v in self.environ.items() if k.startswith('HTTP_')])
     173        header_dict['Content-Type'] = self.environ.get('CONTENT_TYPE', '')
     174        return header_dict
     175
    170176    GET = property(_get_get, _set_get)
    171177    POST = property(_get_post, _set_post)
    172178    COOKIES = property(_get_cookies, _set_cookies)
    173179    FILES = property(_get_files)
    174180    REQUEST = property(_get_request)
    175181    raw_post_data = property(_get_raw_post_data)
     182    raw_request = property(_get_raw_request)
     183    header_dict = property(_get_header_dict)
    176184
    177185class WSGIHandler(BaseHandler):
    178186    def __call__(self, environ, start_response):
  • django/core/handlers/modpython.py

     
    4747    def _load_post_and_files(self):
    4848        "Populates self._post and self._files"
    4949        if self._req.headers_in.has_key('content-type') and self._req.headers_in['content-type'].startswith('multipart'):
    50             self._post, self._files = http.parse_file_upload(self._req.headers_in, self.raw_post_data)
     50            self._post, self._files = http.parse_file_upload(self)
    5151        else:
    5252            self._post, self._files = http.QueryDict(self.raw_post_data), datastructures.MultiValueDict()
    5353
     
    122122    def _get_method(self):
    123123        return self.META['REQUEST_METHOD'].upper()
    124124
     125    def _get_raw_request(self):
     126        return self._req
     127
     128    def _get_header_dict(self):
     129        return self._req.headers_in
     130
    125131    GET = property(_get_get, _set_get)
    126132    POST = property(_get_post, _set_post)
    127133    COOKIES = property(_get_cookies, _set_cookies)
     
    130136    REQUEST = property(_get_request)
    131137    raw_post_data = property(_get_raw_post_data)
    132138    method = property(_get_method)
     139    raw_request = property(_get_raw_request)
     140    header_dict = property(_get_header_dict)   
    133141
    134142class ModPythonHandler(BaseHandler):
    135143    def __call__(self, req):
  • django/contrib/admin/media/js/UploadProgress.js

     
     1
     2function getxy(){
     3    var x,y;
     4    if (self.innerHeight) // all except Explorer
     5        {
     6        x = self.innerWidth;
     7        y = self.innerHeight;
     8        }
     9    else if (document.documentElement && document.documentElement.clientHeight)
     10        // Explorer 6 Strict Mode
     11        {
     12        x = document.documentElement.clientWidth;
     13        y = document.documentElement.clientHeight;
     14        }
     15    else if (document.body) // other Explorers
     16        {
     17        x = document.body.clientWidth;
     18        y = document.body.clientHeight;
     19        }
     20    return {'x':x,'y':y}
     21    }
     22
     23var humanvalue = ['B','KB','MB','GB']
     24function humanize(bytes) {
     25    curbytes = bytes
     26    iterations = 0
     27    while (curbytes>1024) {
     28        iterations++
     29        curbytes=curbytes/1024
     30        }
     31    return curbytes.toFixed(1) + ' ' + humanvalue[iterations]
     32    }
     33
     34interval = null;
     35function fetch(uuid) {
     36    req = xmlhttp
     37    req.open("GET", "/progress/", 1);
     38    req.setRequestHeader("X-Progress-Id", uuid);
     39    req.onreadystatechange = function () {
     40    if (req.readyState == 4) {
     41        if (req.status == 200) {
     42
     43            var upload = eval( '(' + req.responseText + ')' );
     44
     45            if (upload.state == 'done' || upload.state == 'uploading') {
     46                bar = document.getElementById('progress_bar');
     47                bar_txt = document.getElementById('progress_text')
     48                bar_txt.innerHTML = ((upload.received / upload.size) * 100).toFixed(1) + '% - ' +
     49                    humanize(upload.received) + ' of ' + humanize(upload.size)
     50                w = 400 * upload.received / upload.size;
     51                bar.style.width = w + 'px';
     52
     53                }
     54                if (upload.state == 'done') {
     55                    window.clearTimeout(interval);
     56                    }
     57                }
     58            }
     59        }
     60    req.send(null);
     61
     62    }
     63
     64function openprogress(e) {
     65
     66    uuid = "";
     67    for (i = 0; i < 32; i++) {
     68        uuid += Math.floor(Math.random() * 16).toString(16);
     69        }
     70    frm = e.target||e.srcElement
     71
     72    frm.action=frm.action+"?" + uuid;
     73
     74    pos = getxy()
     75    posx = parseInt((pos.x/2)-(420/2), 10)
     76    posy = parseInt((pos.y/2)-(50/2), 10)
     77
     78    progress_wrap = quickElement('div', document.body, '', 'style',
     79        'position: absolute; top: '+posy+'px; left: '+posx+'px; height: 50px; ' +
     80        'padding: 10px; width: 420px; background: #ffffff; ' +
     81        'border: solid 1px #dddddd;', 'id', 'progress_wrap')
     82
     83    progress_label = quickElement('h1', progress_wrap, 'Upload progress')
     84
     85    progress = quickElement('div', progress_wrap, '', 'style',
     86        'top: 0; left: 0; width: 0px; ', 'id', 'progress_bar', 'class', 'submit-row')
     87
     88    progress_text = quickElement('div', progress_wrap, '0%', 'style',
     89        'color: #000000; ', 'id', 'progress_text')
     90 
     91    interval = window.setInterval(
     92        function () {
     93            fetch(uuid);
     94            },
     95        1000
     96        );
     97    }
     98
     99addEvent(window, 'load', function() {
     100        frm = document.getElementsByTagName('form')[0]
     101        addEvent(frm, 'submit',  openprogress)   
     102        }
     103    )
  • django/middleware/upload.py

     
     1"streaming upload middleware"
     2import cgi
     3import os
     4import tempfile
     5import re
     6import email, email.Message, email.FeedParser
     7from email import Errors
     8from email import Message
     9from email.FeedParser import NLCRE, NLCRE_bol, NLCRE_eol, NLCRE_crack,headerRE, EMPTYSTRING, NL, NeedMoreData
     10
     11from django.conf import settings
     12from django.utils.datastructures import MultiValueDict
     13from django.utils import simplejson
     14
     15from django.core import signals
     16from django.dispatch import dispatcher
     17
     18def delete_tempfile(sender):
     19    sender.delete()
     20
     21class TempFileDict(dict):
     22    "Keeps uploaded file as a file-like object and reads its content on demand"
     23   
     24    def __init__(self):
     25        self['name'] = tempfile.mktemp()
     26        self['file'] = open(self['name'], "w+b")
     27        dispatcher.connect(delete_tempfile, sender=self, signal=signals.request_finished)
     28
     29    def write(self, data):
     30        self['file'].write(data)
     31
     32    def close(self):
     33        self['file'].close()
     34
     35    def delete(self):
     36        if os.path.exsists(self['name']):
     37            os.remove(self['name'])
     38   
     39    def tell(self):
     40        return os.path.getsize(self['name'])
     41
     42    def __repr__(self):
     43        return '<TempFileDict>'
     44
     45class FileDict(dict):
     46
     47    def __init__(self, filename, contenttype, payload):
     48        self['filename'] , self['content-type'], self['payload'] = filename, contenttype, payload
     49
     50    def __getitem__(self, name):
     51        if name=='content' and not 'content' in self:
     52            size = self.tell()
     53            f = open(self['payload']['name'], 'r')
     54            self['content'] = f.read(size)
     55            f.close()
     56        return dict.__getitem__(self, name)
     57
     58    def tell(self):
     59        return self['payload'].tell()
     60
     61    def __repr__(self):
     62        return '<FileDict>'
     63
     64
     65class StreamingFileFeedParser(email.FeedParser.FeedParser):
     66
     67    def _parsegen(self):
     68        # Create a new message and start by parsing headers.
     69        self._new_message()
     70        headers = []
     71        # Collect the headers, searching for a line that doesn't match the RFC
     72        # 2822 header or continuation pattern (including an empty line).
     73        for line in self._input:
     74            if line is NeedMoreData:
     75                yield NeedMoreData
     76                continue
     77            if not headerRE.match(line):
     78                # If we saw the RFC defined header/body separator
     79                # (i.e. newline), just throw it away. Otherwise the line is
     80                # part of the body so push it back.
     81                if not NLCRE.match(line):
     82                    self._input.unreadline(line)
     83                break
     84            headers.append(line)
     85        # Done with the headers, so parse them and figure out what we're
     86        # supposed to see in the body of the message.
     87        self._parse_headers(headers)
     88        # Headers-only parsing is a backwards compatibility hack, which was
     89        # necessary in the older parser, which could throw errors.  All
     90        # remaining lines in the input are thrown into the message body.
     91        if self._headersonly:
     92            lines = []
     93            while True:
     94                line = self._input.readline()
     95                if line is NeedMoreData:
     96                    yield NeedMoreData
     97                    continue
     98                if line == '':
     99                    break
     100                lines.append(line)
     101            self._cur.set_payload(EMPTYSTRING.join(lines))
     102            return
     103        if self._cur.get_content_type() == 'message/delivery-status':
     104            # message/delivery-status contains blocks of headers separated by
     105            # a blank line.  We'll represent each header block as a separate
     106            # nested message object, but the processing is a bit different
     107            # than standard message/* types because there is no body for the
     108            # nested messages.  A blank line separates the subparts.
     109            while True:
     110                self._input.push_eof_matcher(NLCRE.match)
     111                for retval in self._parsegen():
     112                    if retval is NeedMoreData:
     113                        yield NeedMoreData
     114                        continue
     115                    break
     116                msg = self._pop_message()
     117                # We need to pop the EOF matcher in order to tell if we're at
     118                # the end of the current file, not the end of the last block
     119                # of message headers.
     120                self._input.pop_eof_matcher()
     121                # The input stream must be sitting at the newline or at the
     122                # EOF.  We want to see if we're at the end of this subpart, so
     123                # first consume the blank line, then test the next line to see
     124                # if we're at this subpart's EOF.
     125                while True:
     126                    line = self._input.readline()
     127                    if line is NeedMoreData:
     128                        yield NeedMoreData
     129                        continue
     130                    break
     131                while True:
     132                    line = self._input.readline()
     133                    if line is NeedMoreData:
     134                        yield NeedMoreData
     135                        continue
     136                    break
     137                if line == '':
     138                    break
     139                # Not at EOF so this is a line we're going to need.
     140                self._input.unreadline(line)
     141            return
     142        if self._cur.get_content_maintype() == 'message':
     143            # The message claims to be a message/* type, then what follows is
     144            # another RFC 2822 message.
     145            for retval in self._parsegen():
     146                if retval is NeedMoreData:
     147                    yield NeedMoreData
     148                    continue
     149                break
     150            self._pop_message()
     151            return
     152        if self._cur.get_content_maintype() == 'multipart':
     153            boundary = self._cur.get_boundary()
     154            if boundary is None:
     155                # The message /claims/ to be a multipart but it has not
     156                # defined a boundary.  That's a problem which we'll handle by
     157                # reading everything until the EOF and marking the message as
     158                # defective.
     159                self._cur.defects.append(Errors.NoBoundaryInMultipartDefect())
     160                lines = []
     161                for line in self._input:
     162                    if line is NeedMoreData:
     163                        yield NeedMoreData
     164                        continue
     165                    lines.append(line)
     166                self._cur.set_payload(EMPTYSTRING.join(lines))
     167                return
     168            # Create a line match predicate which matches the inter-part
     169            # boundary as well as the end-of-multipart boundary.  Don't push
     170            # this onto the input stream until we've scanned past the
     171            # preamble.
     172            separator = '--' + boundary
     173            boundaryre = re.compile(
     174                '(?P<sep>' + re.escape(separator) +
     175                r')(?P<end>--)?(?P<ws>[ \t]*)(?P<linesep>\r\n|\r|\n)?$')
     176            capturing_preamble = True
     177            preamble = []
     178            linesep = False
     179            while True:
     180                line = self._input.readline()
     181                if line is NeedMoreData:
     182                    yield NeedMoreData
     183                    continue
     184                if line == '':
     185                    break
     186                mo = boundaryre.match(line)
     187                if mo:
     188                    # If we're looking at the end boundary, we're done with
     189                    # this multipart.  If there was a newline at the end of
     190                    # the closing boundary, then we need to initialize the
     191                    # epilogue with the empty string (see below).
     192                    if mo.group('end'):
     193                        linesep = mo.group('linesep')
     194                        break
     195                    # We saw an inter-part boundary.  Were we in the preamble?
     196                    if capturing_preamble:
     197                        if preamble:
     198                            # According to RFC 2046, the last newline belongs
     199                            # to the boundary.
     200                            lastline = preamble[-1]
     201                            eolmo = NLCRE_eol.search(lastline)
     202                            if eolmo:
     203                                preamble[-1] = lastline[:-len(eolmo.group(0))]
     204                            self._cur.preamble = EMPTYSTRING.join(preamble)
     205                        capturing_preamble = False
     206                        self._input.unreadline(line)
     207                        continue
     208                    # We saw a boundary separating two parts.  Consume any
     209                    # multiple boundary lines that may be following.  Our
     210                    # interpretation of RFC 2046 BNF grammar does not produce
     211                    # body parts within such double boundaries.
     212                    while True:
     213                        line = self._input.readline()
     214                        if line is NeedMoreData:
     215                            yield NeedMoreData
     216                            continue
     217                        mo = boundaryre.match(line)
     218                        if not mo:
     219                            self._input.unreadline(line)
     220                            break
     221                    # Recurse to parse this subpart; the input stream points
     222                    # at the subpart's first line.
     223                    self._input.push_eof_matcher(boundaryre.match)
     224                    for retval in self._parsegen():
     225                        if retval is NeedMoreData:
     226                            yield NeedMoreData
     227                            continue
     228                        break
     229                    # Because of RFC 2046, the newline preceding the boundary
     230                    # separator actually belongs to the boundary, not the
     231                    # previous subpart's payload (or epilogue if the previous
     232                    # part is a multipart).
     233                    if self._last.get_content_maintype() == 'multipart':
     234                        epilogue = self._last.epilogue
     235                        if epilogue == '':
     236                            self._last.epilogue = None
     237                        elif epilogue is not None:
     238                            mo = NLCRE_eol.search(epilogue)
     239                            if mo:
     240                                end = len(mo.group(0))
     241                                self._last.epilogue = epilogue[:-end]
     242                    else:
     243                        payload = self._last.get_payload()
     244                        if isinstance(payload, basestring):
     245                            mo = NLCRE_eol.search(payload)
     246                            if mo:
     247                                payload = payload[:-len(mo.group(0))]
     248                                self._last.set_payload(payload)
     249                    self._input.pop_eof_matcher()
     250                    self._pop_message()
     251                    # Set the multipart up for newline cleansing, which will
     252                    # happen if we're in a nested multipart.
     253                    self._last = self._cur
     254                else:
     255                    # I think we must be in the preamble
     256                    assert capturing_preamble
     257                    preamble.append(line)
     258            # We've seen either the EOF or the end boundary.  If we're still
     259            # capturing the preamble, we never saw the start boundary.  Note
     260            # that as a defect and store the captured text as the payload.
     261            # Everything from here to the EOF is epilogue.
     262            if capturing_preamble:
     263                self._cur.defects.append(Errors.StartBoundaryNotFoundDefect())
     264                self._cur.set_payload(EMPTYSTRING.join(preamble))
     265                epilogue = []
     266                for line in self._input:
     267                    if line is NeedMoreData:
     268                        yield NeedMoreData
     269                        continue
     270                self._cur.epilogue = EMPTYSTRING.join(epilogue)
     271                return
     272            # If the end boundary ended in a newline, we'll need to make sure
     273            # the epilogue isn't None
     274            if linesep:
     275                epilogue = ['']
     276            else:
     277                epilogue = []
     278            for line in self._input:
     279                if line is NeedMoreData:
     280                    yield NeedMoreData
     281                    continue
     282                epilogue.append(line)
     283            # Any CRLF at the front of the epilogue is not technically part of
     284            # the epilogue.  Also, watch out for an empty string epilogue,
     285            # which means a single newline.
     286            if epilogue:
     287                firstline = epilogue[0]
     288                bolmo = NLCRE_bol.match(firstline)
     289                if bolmo:
     290                    epilogue[0] = firstline[len(bolmo.group(0)):]
     291            self._cur.epilogue = EMPTYSTRING.join(epilogue)
     292            return
     293        # Otherwise, it's some non-multipart type, so the entire rest of the
     294        # file contents becomes the payload.
     295        name_dict = cgi.parse_header(self._cur['Content-Disposition'])[1]
     296        if name_dict.has_key('filename'):
     297            tmpfile = TempFileDict()
     298            for line in self._input:
     299                if line is NeedMoreData:
     300                    yield NeedMoreData
     301                    continue
     302                tmpfile.write(line)
     303            tmpfile.close()
     304            self._cur.set_payload(tmpfile)
     305        else:
     306            lines = []
     307            for line in self._input:
     308                if line is NeedMoreData:
     309                    yield NeedMoreData
     310                    continue
     311                lines.append(line)
     312            self._cur.set_payload(EMPTYSTRING.join(lines))
     313
     314def parse_streaming_file_upload(req):
     315    "Returns a tuple of (POST MultiValueDict, FILES MultiValueDict)"
     316
     317    try:
     318        BUFFER_SIZE=settings.UPLOAD_BUFFER_SIZE
     319    except:
     320        BUFFER_SIZE=200000
     321
     322    if hasattr(req, 'upload_state'):
     323        upload_state = req.upload_state(req)
     324    else:
     325        upload_state = None
     326
     327    raw_headers = '\r\n'.join(['%s:%s' % pair for pair in req.header_dict.items()])
     328    raw_headers += '\r\n\r\n'
     329    POST = MultiValueDict()
     330    FILES = MultiValueDict()
     331    parser = StreamingFileFeedParser()
     332    parser.feed(raw_headers)
     333    while 1:
     334        # make this a non-blocing read
     335        line=req.raw_request.read(BUFFER_SIZE)
     336        if upload_state:
     337            upload_state.addlen(len(line))
     338        parser.feed(line)
     339        if line == '':
     340            break
     341    msg=parser.close()
     342    POST = MultiValueDict()
     343    FILES = MultiValueDict()
     344    for submessage in msg.get_payload():
     345        if isinstance(submessage, email.Message.Message):
     346            name_dict = cgi.parse_header(submessage['Content-Disposition'])[1]
     347            # name_dict is something like {'name': 'file', 'filename': 'test.txt'} for file uploads
     348            # or {'name': 'blah'} for POST fields
     349            # We assume all uploaded files have a 'filename' set.
     350            if name_dict.has_key('filename'):
     351                assert type([]) != type(submessage.get_payload()), "Nested MIME messages are not supported"
     352                if not name_dict['filename'].strip():
     353                    continue
     354                # IE submits the full path, so trim everything but the basename.
     355                # (We can't use os.path.basename because it expects Linux paths.)
     356                filename = name_dict['filename'][name_dict['filename'].rfind("\\")+1:]
     357                FILES.appendlist(name_dict['name'], FileDict(
     358                    filename,
     359                    (submessage.has_key('Content-Type') and submessage['Content-Type'] or None),
     360                    submessage.get_payload()
     361                ))
     362            else:
     363                POST.appendlist(name_dict['name'], submessage.get_payload())
     364    return POST, FILES
     365
     366class StreamingUploadMiddleware:
     367
     368    def process_request(self, request):
     369        request.parse_file_upload = parse_streaming_file_upload
     370
     371def get_temp_file(identifier):
     372    return os.path.join(tempfile.gettempdir(),identifier)
     373
     374class UploadState:
     375
     376    def __init__(self, req):
     377        self.identifier = req.META['QUERY_STRING']
     378        self.state = {'size': int(req.header_dict.get('content-length')),
     379             'state': 'starting', 'received': 0}
     380        self.save()
     381
     382    def addlen(self, toadd):
     383        self.state['received'] = self.state['received'] + toadd
     384        if self.state['size']-1 <= self.state['received']:
     385            self.state['state'] = 'done'
     386        else:
     387             self.state['state'] = 'uploading'
     388        self.save()
     389
     390    def save(self):
     391        simplejson.dump(self.state,open(get_temp_file(self.identifier), 'w'))
     392
     393class UploadStateMiddleware:
     394
     395    def process_request(self, request):
     396
     397        try:
     398            progress_url=settings.PROGRESS_URL
     399        except:
     400            progress_url='/progress/'
     401
     402        if request.META['QUERY_STRING']:
     403            request.upload_state = UploadState
     404
     405        if request.path == progress_url:
     406            for header in request.header_dict.items():
     407                if header[0].upper().replace('-', '_').endswith('X_PROGRESS_ID'):
     408                    progress_id = header[1]
     409            try:
     410                content = open(get_temp_file(progress_id), 'r').read()
     411            except:
     412                content="{}"
     413            if not content:
     414                content="{}"
     415
     416            from django.http import HttpResponse
     417            return HttpResponse(content=content, mimetype='text/plain')
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