TT#101108 Expose panel branding logo via API

* create /api/resellerbrandinglogos/ endpoint
	    which will return the reseller's branding logo
	  * the endpoint can be used directly with /{reseller_id}
	    or with /?subscriber_id={subscriber_id} to get
	    the logo of subscriber's customer contact reseller

Change-Id: I5db19e208ae21cf7c685d46aa77b5032c26554de

lib/NGCP/Panel/Controller/API/ResellerBrandingLogos.pm

@@ -0,0 +1,51 @@
+package NGCP::Panel::Controller::API::ResellerBrandingLogos;
+
+use Sipwise::Base;
+use NGCP::Panel::Utils::Generic qw(:all);
+
+use HTTP::Status qw(:constants);
+
+use parent qw/NGCP::Panel::Role::Entities NGCP::Panel::Role::API::ResellerBrandingLogos/;
+
+__PACKAGE__->set_config();
+
+sub config_allowed_roles {
+    return [qw/admin reseller subscriberadmin subscriber/];
+}
+
+sub allowed_methods{
+    return [qw/GET OPTIONS HEAD/];
+}
+
+sub api_description {
+    return 'Used to download the reseller branding logo image. Returns a binary attachment with the correct content type (e.g. image/jpeg) of the image.';
+};
+
+sub GET :Allow {
+    my ($self, $c) = @_;
+    my $item = $self->item_rs($c);
+
+    unless($c->req->param('subscriber_id')) {
+        $self->error($c, HTTP_UNPROCESSABLE_ENTITY, "subscriber_id parameter is mandatory.");
+        return;
+    }
+
+    unless($item->first) {
+        $self->error($c, HTTP_UNPROCESSABLE_ENTITY, "Invalid subscriber_id. Subscriber not found.");
+        return;
+    }
+
+    my $branding = $item->first->branding;
+
+    unless($branding || $branding->logo) {
+        $self->error($c, HTTP_NOT_FOUND, "No branding logo available for this reseller");
+        return;
+        return;
+    }
+    $c->response->content_type($branding->logo_image_type);
+    $c->response->body($branding->logo);
+}
+
+1;
+
+# vim: set tabstop=4 expandtab:

lib/NGCP/Panel/Controller/API/ResellerBrandingLogosItem.pm

@@ -0,0 +1,42 @@
+package NGCP::Panel::Controller::API::ResellerBrandingLogosItem;
+use Sipwise::Base;
+
+use NGCP::Panel::Utils::Generic qw(:all);
+
+use parent qw/NGCP::Panel::Role::EntitiesItem NGCP::Panel::Role::API::ResellerBrandingLogos/;
+
+use HTTP::Status qw(:constants);
+
+__PACKAGE__->set_config({
+    GET => {
+        ReturnContentType => 'binary',
+    },
+    log_response  => 0,
+    allowed_roles => [qw/admin reseller subscriberadmin subscriber/],
+});
+
+sub allowed_methods{
+    return [qw/GET OPTIONS HEAD/];
+}
+
+sub get_item_binary_data{
+    my($self, $c, $id, $item) = @_;
+
+    my $branding = $item->branding;
+
+    if ($branding && $branding->logo) {
+        my $data = $branding->logo;
+        my $mime_type = $branding->logo_image_type;
+        my $fext = $mime_type; 
+        $fext =~ s/^.*?([a-zA-Z0-9]+)$/$1/;
+        return (\$data, $mime_type, 'reseller_'.$item->id.'_branding_logo.'.$fext);
+    }
+    else{
+        $self->error($c, HTTP_NOT_FOUND, "No branding logo available for this reseller");
+        return;
+    }
+}
+
+1;
+
+# vim: set tabstop=4 expandtab:

lib/NGCP/Panel/Role/API/ResellerBrandingLogos.pm

@@ -0,0 +1,54 @@
+package NGCP::Panel::Role::API::ResellerBrandingLogos;
+use NGCP::Panel::Utils::Generic qw(:all);
+
+use Sipwise::Base;
+
+use parent 'NGCP::Panel::Role::API';
+
+sub resource_name{
+    return 'resellerbrandinglogos';
+}
+sub dispatch_path{
+    return '/api/resellerbrandinglogos/';
+}
+sub relation{
+    return 'http://purl.org/sipwise/ngcp-api/#rel-resellerbrandinglogos';
+}
+
+sub _item_rs {
+    my ($self, $c) = @_;
+    my $item_rs;
+    if ($c->req->param('subscriber_id')) {
+        $item_rs = $c->model('DB')->resultset('resellers')->search(
+            {
+                'voip_subscribers.id' => $c->req->param('subscriber_id')
+            },
+            {
+                join => { 'contacts' => { 'contracts' => 'voip_subscribers' } }
+            }
+        );
+    } else {
+        $item_rs = $c->model('DB')->resultset('resellers')->search({
+            status => { '!=' => 'terminated' }
+        });
+    }
+    if ($c->user->roles eq "admin") {
+    } elsif ($c->user->roles eq "reseller") {
+        $item_rs = $item_rs->search({ reseller_id => $c->user->reseller_id });
+    } elsif ($c->user->roles eq "subscriberadmin" || $c->user->roles eq "subscriber") {
+        my $reseller_id = $c->user->contract->contact->reseller_id;
+        return unless $reseller_id;
+        $item_rs = $item_rs->search({
+            reseller_id => $reseller_id,
+        });
+    }
+    return $item_rs;
+}
+
+sub get_form {
+    my ($self, $c) = @_;
+    return;
+}
+
+1;
+# vim: set tabstop=4 expandtab: