git.rot13.org Git - angular-drzb/blob - angular-server.pl

   1 #!/usr/bin/env perl
   2
   3 use Mojolicious::Lite;
   4 use Data::Dump qw(dump);
   5 use Time::HiRes;
   6 use Clone qw(clone);
   7 use Mojo::UserAgent;
   8
   9 our $VERSION = `git describe`;
  10 chomp $VERSION;
  11
  12 sub new_uuid { Time::HiRes::time * 100000 }
  13
  14 #push @{app->static->paths}, 'app'; # default angular-seed app directory
  15
  16
  17 my $couchdb = $ENV{COUCHDB} || 'http://localhost:5984';
  18 my $couchdb_database = 'drzb2013v2';
  19 my $couchdb_view = "http://10.60.0.92:5984/_utils/document.html?$couchdb_database";
  20 my $client = Mojo::UserAgent->new;
  21
  22 our $view_cache;
  23
  24 sub _couchdb_put {
  25         my ( $url, $data ) = @_;
  26
  27         $view_cache = undef;
  28
  29         $data->{'$entity'} = $1 if $url =~ m{/(\w+)\.\d+/$/};
  30
  31         my $json = Mojo::JSON->new->encode( $data );
  32
  33         my $rev;
  34
  35         warn "# _couchdb_put $url = $json";
  36         return $client->put( "$couchdb/$url" => $json)->res->json;
  37 }
  38
  39 sub _couchdb_get {
  40         my ( $url ) = @_;
  41         my $return = $client->get( "$couchdb/$url" )->res->json;
  42 #       warn "# _couchdb_get $url = ",dump($return);
  43         return $return;
  44 }
  45
  46
  47 our $id2nr;
  48
  49
  50 sub _render_jsonp {
  51         my ( $self, $json ) = @_;
  52 #warn "## _render_json ",dump($json);
  53         my $data = $self->render( json => $json, partial => 1 );
  54 #warn "## _render_json $data";
  55         if ( my $callback = $self->param('callback') ) {
  56                 $data = "$callback($data)";
  57         }
  58         $self->render( data => $data, format => 'js' );
  59 }
  60
  61 get '/' => sub {
  62         my $self = shift;
  63         $self->render_text("...");
  64 };
  65
  66 # define languages
  67
  68 helper locale => sub {
  69         my $self = shift;
  70         my %locale = @_;
  71         my $lang = $self->stash('lang');
  72         $lang =~ s/-dev$//;
  73         return $locale{ $lang } || "MISSING $lang $_[1]";
  74 };
  75
  76 helper ip => sub {
  77         my $self = shift;
  78         return
  79                 $self->req->headers->header('X-Forwarded-For')
  80                 || $self->req->headers->header('X-Real-IP')
  81                 || $self->tx->{remote_address}
  82         ;
  83 };
  84
  85
  86 get '/js/services.js' => sub {
  87         my $self = shift;
  88         $self->stash( VERSION => $VERSION );
  89         $self->stash( couchdb_database => $couchdb_database );
  90         $self->render( 'js/services', format => 'js' );
  91 };
  92
  93 # short public URLs
  94 get '/hr' => sub { shift->redirect_to('/lang/hr/drzb2013') };
  95 get '/en' => sub { shift->redirect_to('/lang/en/drzb2013') };
  96
  97 get '/lang/:lang/:template' => sub {
  98         my $self = shift;
  99         $self->render( $self->stash('template') , lang => $self->stash('lang') );
 100 };
 101
 102 get '/lang/:lang/partials/:template' => sub {
 103         my $self = shift;
 104         $self->stash( couchdb_view => $couchdb_view );
 105         $self->render( 'partials/' . $self->stash('template') , lang => $self->stash('lang') );
 106 };
 107
 108 get '/lang/:lang/.template' => sub {
 109         my $self = shift;
 110         $self->render( $self->stash('template') , lang => $self->stash('lang') );
 111 };
 112
 113 get '/lang/:lang/template/*template' => sub { # angular-ui templates
 114         my $self = shift;
 115         my $path = '/template/' . $self->stash('template');
 116         warn "# render_static $path";
 117         $self->render_static( $path );
 118 };
 119
 120 get '/data/' => sub {
 121         my $self = shift;
 122         _render_jsonp( $self, _couchdb_get('/_all_dbs') );
 123 };
 124
 125 get '/data/:database' => sub {
 126         my $self = shift;
 127         my $database = $self->param('database');
 128
 129         my $list_databases = { name => $database };
 130
 131         my $counts = _couchdb_get("/$database/_design/entity/_view/counts?group=true");
 132         if ( exists $counts->{error} ) {
 133                 warn "creating CouchDB view because of ", dump($counts);
 134                 _couchdb_put "/$database/_design/entity", {
 135                         _id => '_design/entity',
 136                         language => 'javascript',
 137                         views => {
 138                                 counts => {
 139                                         map    => q| function(doc) { emit(doc._id.split('.')[0],1); } |,
 140                                         reduce => q| function(keys,values,rereduce) { return sum(values); } |,
 141                                 }
 142                         }
 143                 };
 144                 $counts = _couchdb_get("/$database/_design/entity/_view/counts?group=true")
 145                 || die "give up!";
 146         }
 147
 148         warn "# counts ",dump($counts);
 149
 150         foreach my $row ( @{ $counts->{rows} } ) {
 151                 my $n = $row->{value};
 152                 $list_databases->{entities}->{ $row->{key} } = $n;
 153                 $list_databases->{document_counts} += $n;
 154         }
 155         warn dump($list_databases);
 156         _render_jsonp( $self,  $list_databases );
 157 };
 158
 159 get '/data/:database/:entity' => sub {
 160         my $self = shift;
 161
 162         my $database = $self->param('database');
 163         my $entity   = $self->param('entity');
 164
 165         my $endkey = $entity;
 166         $endkey++;
 167
 168         my $counts = _couchdb_get qq|/$database/_all_docs?startkey="$entity";endkey="$endkey";include_docs=true|;
 169 #       warn "# counts ",dump($counts);
 170
 171         _render_jsonp( $self, [ map { $_->{doc} } @{ $counts->{rows} } ] )
 172 };
 173
 174 get '/data/:database/:entity/:id' => sub {
 175     my $self = shift;
 176
 177         my $database = $self->param('database');
 178         my $entity   = $self->param('entity');
 179         my $id       = $self->param('id');
 180
 181         _render_jsonp( $self, _couchdb_get( "/$database/$entity.$id" ) );
 182 };
 183
 184 any [ 'post' ] => '/data/:database/:entity' => sub {
 185         my $self = shift;
 186         my $database = $self->param('database');
 187         my $entity   = $self->param('entity');
 188         my $json = $self->req->json;
 189         my $id;
 190         if ( exists $json->{'id'} ) { # @id in resource
 191                 $id = $json->{'id'};
 192                 warn "EXISTING $id\n";
 193         } else {
 194                 $id = $json->{'id'} = new_uuid;
 195                 $json->{entity} = $entity;
 196                 warn "NEW $id\n";
 197         }
 198
 199         $json->{x_audit} = {
 200                 t  => Time::HiRes::time,
 201                 ip => $self->ip(),
 202         };
 203
 204         warn "## $database $entity $id body ",dump($self->req->body, $json);
 205
 206         my $new = _couchdb_put "/$database/$entity.$id" => $json;
 207         warn "new: ",dump($new);
 208         if ( $new->{ok} ) {
 209                 $json->{'_'.$_} = $new->{$_} foreach ( 'rev','id' );
 210         } else {
 211                 warn "ERROR: ",dump($new);
 212                 $json->{error} = $new;
 213         }
 214
 215         _render_jsonp( $self,  $json );
 216 };
 217
 218
 219 #get '/' => sub { shift->redirect_to('/app/') };
 220
 221 # CouchDB proxy for _design _view
 222
 223 get '/:database/_design/:design/_view/:view' => sub {
 224         my $self = shift;
 225         my $format = $self->param('format');
 226         my $url = join('/', $self->param('database'),'_design',$self->param('design'),'_view',$self->param('view') );
 227         if ( my $param = $self->req->url->query->clone->remove('callback')->remove('format')->to_string ) {
 228                 $url .= '?' . $param
 229         }
 230
 231         if ( exists $view_cache->{$url}->{time} ) {
 232                 if ( time() - $view_cache->{$url}->{time} < 60 ) {
 233                         warn "HIT CouchDB cache $url";
 234                         $view_cache->{$url}->{hit}++;
 235                         return _render_jsonp( $self, $view_cache->{$url}->{json} );
 236                 } else {
 237                         warn "REFRESH CouchDB cache $url";
 238                         $view_cache->{$url}->{refresh}++;
 239                 }
 240         } else {
 241                 $view_cache->{$url}->{miss}++;
 242         }
 243         warn "CouchDB proxy $url";
 244         my $json = _couchdb_get($url);
 245
 246         if ( exists $json->{error} ) {
 247                 warn "creating CouchDB view because of ", dump($json);
 248                 my $url = "/" . $self->param('database') . "/_design/registration";
 249                 _couchdb_put $url, {
 250                         _id => '_design/registration',
 251                         language => 'javascript',
 252                         views => {
 253                                 organizations => {
 254                                         map    => q| function(doc) {
 255 if ( doc.user.organization != '' ) {
 256   if ( doc.user.organization )
 257     emit(doc.user.organization, 1);
 258   if ( doc.work.persons ) {
 259     doc.work.persons.forEach( function(person) {
 260       if ( person.organization )
 261         emit(person.organization, 1);
 262     });
 263   }
 264 }
 265                                         }q|,
 266                                         reduce => q| function(keys,values,rereduce) { return sum(values); } |,
 267                                 },
 268                                 authors => {
 269                                         map => q|
 270 function(doc) {
 271   if ( doc.work.persons ) {
 272     doc.work.persons.forEach( function(person) {
 273       emit(person.surname+person.firstname ,
 274         person
 275       );
 276     });
 277   }
 278   if ( doc.work.symposium_works ) {
 279     doc.work.symposium_works.forEach( function(work) {
 280       work.persons.forEach( function(person) {
 281         emit(person.surname+person.firstname ,
 282           person
 283         );
 284       });
 285     });
 286   }
 287 }
 288                                         |,
 289                                 },
 290                         }
 291                 };
 292                 $json = _couchdb_get($url)
 293                 || die "give up!";
 294         }
 295
 296         if ( $format eq 'key_array' ) { # array of keys sorted by value
 297                 $json->{rows} = [ map { $_->{key} } sort { $b->{value} <=> $a->{value} } @{ $json->{rows} } ];
 298         } elsif ( $format eq 'key_distinct' ) {
 299
 300                 my $found;
 301                 $json->{rows} = [ grep { ++$found->{ $_->{key} } == 1 } @{ $json->{rows} } ];
 302                 $json->{distinct_rows} = scalar @{ $json->{rows} };
 303                 warn "## distinct stats ", dump( $found );
 304
 305         } elsif ( $format ) {
 306
 307                 die "unknown format: $format";
 308
 309         }
 310
 311         $view_cache->{$url}->{time} = time();
 312         $view_cache->{$url}->{json} = $json;
 313
 314         warn "# view_cache ",dump($view_cache);
 315
 316         _render_jsonp( $self, $json );
 317 };
 318
 319 # http://showmetheco.de/articles/2010/10/adding-etag-caching-to-your-mojolicious-app.html
 320
 321 hook after_dispatch => sub {
 322         my $self = shift;
 323
 324         return unless $self->req->method eq 'GET';
 325
 326         my $body = $self->res->body;
 327         return unless defined $body;
 328
 329         return if $self->res->headers->header('ETag');
 330
 331         my $our_etag = Mojo::ByteStream->new($body . $VERSION)->md5_sum;
 332         $self->res->headers->header('ETag' => $our_etag);
 333
 334         my $browser_etag = $self->req->headers->header('If-None-Match');
 335         return unless $browser_etag && $browser_etag eq $our_etag;
 336
 337         $self->app->log->debug("HTTP cache hit " . $self->req->url->to_string . " $our_etag" );
 338
 339         $self->res->code(304);
 340         $self->res->body('');
 341 };
 342
 343
 344 app->start;
 345