class FilesController(BaseRepoController):

    @LoginRequired()

    def __before__(self):

        super(FilesController, self).__before__()

        c.cut_off_limit = self.cut_off_limit

    def __get_cs_or_redirect(self, rev, repo_name, redirect_after=True):

        """

        Safe way to get changeset if error occur it redirects to tip with

        proper message

        :param rev: revision to fetch

        :param repo_name: repo name to redirect after

        """

        try:

            return c.rhodecode_repo.get_changeset(rev)

        except EmptyRepositoryError, e:

            if not redirect_after:

                return None

            url_ = url('files_add_home',

                       repo_name=c.repo_name,

                       revision=0, f_path='')

            add_new = '<a href="%s">[%s]</a>' % (url_, _('add new'))

            h.flash(h.literal(_('There are no files yet %s' % add_new)),

                    category='warning')

            redirect(h.url('summary_home', repo_name=repo_name))

        except RepositoryError, e:

            h.flash(str(e), category='warning')

            redirect(h.url('files_home', repo_name=repo_name, revision='tip'))

    def __get_filenode_or_redirect(self, repo_name, cs, path):

        """

        Returns file_node, if error occurs or given path is directory,

        it'll redirect to top level path

        :param repo_name: repo_name

        :param cs: given changeset

        :param path: path to lookup

        """

        try:

            file_node = cs.get_node(path)

            if file_node.is_dir():

                raise RepositoryError('given path is a directory')

        except RepositoryError, e:

            h.flash(str(e), category='warning')

            redirect(h.url('files_home', repo_name=repo_name,

                           revision=cs.raw_id))

        return file_node

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    def index(self, repo_name, revision, f_path, annotate=False):

        # redirect to given revision from form if given

        post_revision = request.POST.get('at_rev', None)

        if post_revision:

            cs = self.__get_cs_or_redirect(post_revision, repo_name)

            redirect(url('files_home', repo_name=c.repo_name,

                         revision=cs.raw_id, f_path=f_path))

        c.changeset = self.__get_cs_or_redirect(revision, repo_name)

        c.branch = request.GET.get('branch', None)

        c.f_path = f_path

        c.annotate = annotate

        cur_rev = c.changeset.revision

        # prev link

        try:

            prev_rev = c.rhodecode_repo.get_changeset(cur_rev).prev(c.branch)

            c.url_prev = url('files_home', repo_name=c.repo_name,

                         revision=prev_rev.raw_id, f_path=f_path)

            if c.branch:

                c.url_prev += '?branch=%s' % c.branch

        except (ChangesetDoesNotExistError, VCSError):

            c.url_prev = '#'

        # next link

        try:

            next_rev = c.rhodecode_repo.get_changeset(cur_rev).next(c.branch)

            c.url_next = url('files_home', repo_name=c.repo_name,

                     revision=next_rev.raw_id, f_path=f_path)

            if c.branch:

                c.url_next += '?branch=%s' % c.branch

        except (ChangesetDoesNotExistError, VCSError):

            c.url_next = '#'

        # files or dirs

        try:

            c.file = c.changeset.get_node(f_path)

            if c.file.is_file():

            else:

        except RepositoryError, e:

            h.flash(str(e), category='warning')

            redirect(h.url('files_home', repo_name=repo_name,

                           revision=revision))

        return render('files/files.html')

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    def rawfile(self, repo_name, revision, f_path):

        cs = self.__get_cs_or_redirect(revision, repo_name)

        file_node = self.__get_filenode_or_redirect(repo_name, cs, f_path)

        response.content_disposition = 'attachment; filename=%s' % \

            safe_str(f_path.split(Repository.url_sep())[-1])

        response.content_type = file_node.mimetype

        return file_node.content

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    def raw(self, repo_name, revision, f_path):

        cs = self.__get_cs_or_redirect(revision, repo_name)

        file_node = self.__get_filenode_or_redirect(repo_name, cs, f_path)

        raw_mimetype_mapping = {

            # map original mimetype to a mimetype used for "show as raw"

            # you can also provide a content-disposition to override the

            # default "attachment" disposition.

            # orig_type: (new_type, new_dispo)

            # show images inline:

            'image/x-icon': ('image/x-icon', 'inline'),

            'image/png': ('image/png', 'inline'),

            'image/gif': ('image/gif', 'inline'),

            'image/jpeg': ('image/jpeg', 'inline'),

            'image/svg+xml': ('image/svg+xml', 'inline'),

        }

        mimetype = file_node.mimetype

        try:

            mimetype, dispo = raw_mimetype_mapping[mimetype]

        except KeyError:

            # we don't know anything special about this, handle it safely

            if file_node.is_binary:

                # do same as download raw for binary files

                mimetype, dispo = 'application/octet-stream', 'attachment'

            else:

                # do not just use the original mimetype, but force text/plain,

                # otherwise it would serve text/html and that might be unsafe.

                # Note: underlying vcs library fakes text/plain mimetype if the

                # mimetype can not be determined and it thinks it is not

                # binary.This might lead to erroneous text display in some

                # cases, but helps in other cases, like with text files

                # without extension.

                mimetype, dispo = 'text/plain', 'inline'

        if dispo == 'attachment':

            dispo = 'attachment; filename=%s' % \

                        safe_str(f_path.split(os.sep)[-1])

        response.content_disposition = dispo

        response.content_type = mimetype

        return file_node.content

    @HasRepoPermissionAnyDecorator('repository.write', 'repository.admin')

    def edit(self, repo_name, revision, f_path):

        r_post = request.POST

        c.cs = self.__get_cs_or_redirect(revision, repo_name)

        c.file = self.__get_filenode_or_redirect(repo_name, c.cs, f_path)

        if c.file.is_binary:

            return redirect(url('files_home', repo_name=c.repo_name,

                         revision=c.cs.raw_id, f_path=f_path))

        c.f_path = f_path

        if r_post:

            old_content = c.file.content

            sl = old_content.splitlines(1)

            first_line = sl[0] if sl else ''

            # modes:  0 - Unix, 1 - Mac, 2 - DOS

            mode = detect_mode(first_line, 0)

            content = convert_line_endings(r_post.get('content'), mode)

            message = r_post.get('message') or (_('Edited %s via RhodeCode')

                                                % (f_path))

            author = self.rhodecode_user.full_contact

            if content == old_content:

                h.flash(_('No changes'),

                    category='warning')

                return redirect(url('changeset_home', repo_name=c.repo_name,

                                    revision='tip'))

        except (ImproperArchiveTypeError, KeyError):

            return _('Unknown archive type')

        fd, archive = tempfile.mkstemp()

        t = open(archive, 'wb')

        cs.fill_archive(stream=t, kind=fileformat, subrepos=subrepos)

        t.close()

        def get_chunked_archive(archive):

            stream = open(archive, 'rb')

            while True:

                data = stream.read(16 * 1024)

                if not data:

                    stream.close()

                    os.close(fd)

                    os.remove(archive)

                    break

                yield data

        response.content_disposition = str('attachment; filename=%s-%s%s' \

                                           % (repo_name, revision[:12], ext))

        response.content_type = str(content_type)

        return get_chunked_archive(archive)

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    def diff(self, repo_name, f_path):

        ignore_whitespace = request.GET.get('ignorews') == '1'

        line_context = request.GET.get('context', 3)

        diff1 = request.GET.get('diff1', '')

        diff2 = request.GET.get('diff2', '')

        c.action = request.GET.get('diff')

        c.no_changes = diff1 == diff2

        c.f_path = f_path

        c.big_diff = False

        c.anchor_url = anchor_url

        c.ignorews_url = _ignorews_url

        c.context_url = _context_url

        c.changes = OrderedDict()

        c.changes[diff2] = []

        try:

            if diff1 not in ['', None, 'None', '0' * 12, '0' * 40]:

                c.changeset_1 = c.rhodecode_repo.get_changeset(diff1)

                node1 = c.changeset_1.get_node(f_path)

            else:

                c.changeset_1 = EmptyChangeset(repo=c.rhodecode_repo)

                node1 = FileNode('.', '', changeset=c.changeset_1)

            if diff2 not in ['', None, 'None', '0' * 12, '0' * 40]:

                c.changeset_2 = c.rhodecode_repo.get_changeset(diff2)

                node2 = c.changeset_2.get_node(f_path)

            else:

                c.changeset_2 = EmptyChangeset(repo=c.rhodecode_repo)

                node2 = FileNode('.', '', changeset=c.changeset_2)

        except RepositoryError:

            return redirect(url('files_home', repo_name=c.repo_name,

                                f_path=f_path))

        if c.action == 'download':

            _diff = diffs.get_gitdiff(node1, node2,

                                      ignore_whitespace=ignore_whitespace,

                                      context=line_context)

            diff = diffs.DiffProcessor(_diff, format='gitdiff')

            diff_name = '%s_vs_%s.diff' % (diff1, diff2)

            response.content_type = 'text/plain'

            response.content_disposition = (

                'attachment; filename=%s' % diff_name

            )

            return diff.raw_diff()

        elif c.action == 'raw':

            _diff = diffs.get_gitdiff(node1, node2,

                                      ignore_whitespace=ignore_whitespace,

                                      context=line_context)

            diff = diffs.DiffProcessor(_diff, format='gitdiff')

            response.content_type = 'text/plain'

            return diff.raw_diff()

        else:

            fid = h.FID(diff2, node2.path)

            line_context_lcl = get_line_ctx(fid, request.GET)

            ign_whitespace_lcl = get_ignore_ws(fid, request.GET)

            lim = request.GET.get('fulldiff') or self.cut_off_limit

            _, cs1, cs2, diff, st = diffs.wrapped_diff(filenode_old=node1,

                                         filenode_new=node2,

                                         cut_off_limit=lim,

                                         ignore_whitespace=ign_whitespace_lcl,

                                         line_context=line_context_lcl,

                                         enable_comments=False)

            c.changes = [('', node2, diff, cs1, cs2, st,)]

        return render('files/file_diff.html')

        hist_l = []

        changesets_group = ([], _("Changesets"))

        branches_group = ([], _("Branches"))

        tags_group = ([], _("Tags"))

        _hg = cs.repository.alias == 'hg'

        for chs in changesets:

            _branch = '(%s)' % chs.branch if _hg else ''

            n_desc = 'r%s:%s %s' % (chs.revision, chs.short_id, _branch)

            changesets_group[0].append((chs.raw_id, n_desc,))

        hist_l.append(changesets_group)

        for name, chs in c.rhodecode_repo.branches.items():

            branches_group[0].append((chs, name),)

        hist_l.append(branches_group)

        for name, chs in c.rhodecode_repo.tags.items():

            tags_group[0].append((chs, name),)

        hist_l.append(tags_group)

        return hist_l

    @jsonify

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    def nodelist(self, repo_name, revision, f_path):

        if request.environ.get('HTTP_X_PARTIAL_XHR'):

            cs = self.__get_cs_or_redirect(revision, repo_name)

            _d, _f = ScmModel().get_nodes(repo_name, cs.raw_id, f_path,

                                          flat=False)

            return {'nodes': _d + _f}

#journal .journal_user {

	color: #747474;

	font-size: 14px;

	font-weight: bold;

	height: 30px;

}

#journal .journal_icon {

	clear: both;

	float: left;

	padding-right: 4px;

	padding-top: 3px;

}

#journal .journal_action {

	padding-top: 4px;

	min-height: 2px;

	float: left

}

#journal .journal_action_params {

	clear: left;

	padding-left: 22px;

}

#journal .journal_repo {

	float: left;

	margin-left: 6px;

	padding-top: 3px;

}

#journal .date {

	clear: both;

	color: #777777;

	font-size: 11px;

	padding-left: 22px;

}

#journal .journal_repo .journal_repo_name {

	font-weight: bold;

	font-size: 1.1em;

}

#journal .compare_view {

	padding: 5px 0px 5px 0px;

	width: 95px;

}

.journal_highlight {

	font-weight: bold;

	padding: 0 2px;

	vertical-align: bottom;

}

.trending_language_tbl,.trending_language_tbl td {

	border: 0 !important;

	margin: 0 !important;

	padding: 0 !important;

}

.trending_language_tbl,.trending_language_tbl tr {

    border-spacing: 1px;

}

.trending_language {

	background-color: #003367;

	color: #FFF;

	display: block;

	min-width: 20px;

	text-decoration: none;

	height: 12px;

	margin-bottom: 0px;

	margin-left: 5px;

	white-space: pre;

	padding: 3px;

}

h3.files_location {

	font-size: 1.8em;

	font-weight: 700;

	border-bottom: none !important;

	margin: 10px 0 !important;

}

#files_data dl dt {

	float: left;

	width: 60px;

	margin: 0 !important;

	padding: 5px;

}

#files_data dl dd {

	margin: 0 !important;

	padding: 5px !important;

}

.tablerow0 {

	background-color: #F8F8F8;

}

.tablerow1 {

    background-color: #FFFFFF;

}

.changeset_id {

	font-family: monospace;

	color: #666666;

}

.changeset_hash {

	color: #000000;

}

#changeset_content {

	border-left: 1px solid #CCC;

	border-right: 1px solid #CCC;

	border-bottom: 1px solid #CCC;

	padding: 5px;

}

#changeset_compare_view_content {

	border: 1px solid #CCC;

	padding: 5px;

}

#changeset_content .container {

	min-height: 100px;

	font-size: 1.2em;

	overflow: hidden;

}

#changeset_compare_view_content .compare_view_commits {

	width: auto !important;

}

#changeset_compare_view_content .compare_view_commits td {

	padding: 0px 0px 0px 12px !important;

}

#changeset_content .container .right {

	float: right;

	width: 20%;

	text-align: right;

}

#changeset_content .container .left .message {

	white-space: pre-wrap;

}

#changeset_content .container .left .message a:hover {

	text-decoration: none;

}

.cs_files .cur_cs {

	margin: 10px 2px;

	font-weight: bold;

}

.cs_files .node {

	float: left;

}

.cs_files .changes {

	float: right;

	color:#003367;

}

.cs_files .changes .added {

	background-color: #BBFFBB;

	float: left;

	text-align: center;

	font-size: 9px;

    padding: 2px 0px 2px 0px;

}

.cs_files .changes .deleted {

	background-color: #FF8888;

	float: left;

	text-align: center;

	font-size: 9px;

    padding: 2px 0px 2px 0px;

}

.cs_files .cs_added {

	background: url("../images/icons/page_white_add.png") no-repeat scroll

		3px;

	height: 16px;

	padding-left: 20px;

	margin-top: 7px;

	text-align: left;

}

.cs_files .cs_changed {

<dl>

	<dd>

	</dd>

</dl>

<div id="body" class="codeblock">

	<div class="code-header">

        <div class="stats">

            <div class="left img"><img src="${h.url('/images/icons/file.png')}"/></div>

            <div class="left item"><pre class="tooltip" title="${h.tooltip(h.fmt_date(c.file.changeset.date))}">${h.link_to("r%s:%s" % (c.file.changeset.revision,h.short_id(c.file.changeset.raw_id)),h.url('changeset_home',repo_name=c.repo_name,revision=c.file.changeset.raw_id))}</pre></div>

            <div class="left item"><pre>${h.format_byte_size(c.file.size,binary=True)}</pre></div>

            <div class="left item last"><pre>${c.file.mimetype}</pre></div>

            <div class="buttons">

              %if c.annotate:

                ${h.link_to(_('show source'),    h.url('files_home',         repo_name=c.repo_name,revision=c.file.changeset.raw_id,f_path=c.f_path),class_="ui-btn")}

              %else:

                ${h.link_to(_('show annotation'),h.url('files_annotate_home',repo_name=c.repo_name,revision=c.file.changeset.raw_id,f_path=c.f_path),class_="ui-btn")}

              %endif

              ${h.link_to(_('show as raw'),h.url('files_raw_home',repo_name=c.repo_name,revision=c.file.changeset.raw_id,f_path=c.f_path),class_="ui-btn")}

              ${h.link_to(_('download as raw'),h.url('files_rawfile_home',repo_name=c.repo_name,revision=c.file.changeset.raw_id,f_path=c.f_path),class_="ui-btn")}

              % if h.HasRepoPermissionAny('repository.write','repository.admin')(c.repo_name):

               % if not c.file.is_binary:

                ${h.link_to(_('edit'),h.url('files_edit_home',repo_name=c.repo_name,revision=c.file.changeset.raw_id,f_path=c.f_path),class_="ui-btn")}

               % endif

              % endif

            </div>

        </div>

        <div class="author">

            <div class="gravatar">

                <img alt="gravatar" src="${h.gravatar_url(h.email(c.file.changeset.author),16)}"/>

            </div>

            <div title="${c.file.changeset.author}" class="user">${h.person(c.file.changeset.author)}</div>

        </div>

		<div class="commit">${h.urlify_commit(c.file.changeset.message,c.repo_name)}</div>

	</div>

	<div class="code-body">

	   %if c.file.is_binary:

	       ${_('Binary file (%s)') % c.file.mimetype}

	   %else:

		% if c.file.size < c.cut_off_limit:

            %if c.annotate:

              ${h.pygmentize_annotation(c.repo_name,c.file,linenos=True,anchorlinenos=True,lineanchors='L',cssclass="code-highlight")}

            %else:

			  ${h.pygmentize(c.file,linenos=True,anchorlinenos=True,lineanchors='L',cssclass="code-highlight")}

            %endif

		%else:

			${_('File is too big to display')} ${h.link_to(_('show as raw'),

			h.url('files_raw_home',repo_name=c.repo_name,revision=c.file.changeset.raw_id,f_path=c.f_path))}

		%endif

     %endif

	</div>

</div>

<script type="text/javascript">

YUE.onDOMReady(function(){

    function highlight_lines(lines){

        for(pos in lines){

          YUD.setStyle('L'+lines[pos],'background-color','#FFFFBE');

        }

    }

    page_highlights = location.href.substring(location.href.indexOf('#')+1).split('L');

    if (page_highlights.length == 2){

       highlight_ranges  = page_highlights[1].split(",");

       var h_lines = [];

       for (pos in highlight_ranges){

            var _range = highlight_ranges[pos].split('-');

            if(_range.length == 2){

                var start = parseInt(_range[0]);

                var end = parseInt(_range[1]);

                if (start < end){

                    for(var i=start;i<=end;i++){

                        h_lines.push(i);

                    }

                }

            }

            else{

                h_lines.push(parseInt(highlight_ranges[pos]));

            }

      }

    highlight_lines(h_lines);

    //remember original location

    var old_hash  = location.href.substring(location.href.indexOf('#'));

    // this makes a jump to anchor moved by 3 posstions for padding

    window.location.hash = '#L'+Math.max(parseInt(h_lines[0])-3,1);

    //sets old anchor

    window.location.hash = old_hash;

    }

    YUE.on('show_rev','click',function(e){

    	YUE.preventDefault(e);

        var cs = YUD.get('diff1').value;

        %if c.annotate:

          var url = "${h.url('files_annotate_home',repo_name=c.repo_name,revision='__CS__',f_path=c.f_path)}".replace('__CS__',cs);

        %else:

          var url = "${h.url('files_home',repo_name=c.repo_name,revision='__CS__',f_path=c.f_path)}".replace('__CS__',cs);