Add nHentai-Plugin to bypass CF JS-Challenge

lib/LANraragi/Plugin/Login/nHentai.pm

@@ -0,0 +1,83 @@
+package LANraragi::Plugin::Login::nHentai;
+
+use strict;
+use warnings;
+no warnings 'uninitialized';
+
+use Mojo::UserAgent;
+use LANraragi::Utils::Logging qw(get_logger);
+
+#Meta-information about your plugin.
+sub plugin_info {
+
+    return (
+		#Standard metadata
+        name      => "nHentai CF Bypass",
+        type      => "login",
+        namespace => "nhentaicfbypass",
+        author    => "Pheromir",
+        version   => "0.1",
+        description =>
+          "Bypasses the Cloudflare Javascript-challenge by re-using cookies from your browser. Both CF cookies and the user-agent must originate from the same webbrowser.",
+        parameters => [
+              { type => "string", desc => "Browser UserAgent string (Can be found at http://useragentstring.com/ for your browser)" },
+			{ type => "string", desc => "csrftoken cookie for domain nhentai.net" },
+			{ type => "string", desc => "cf_clearance cookie for domain nhentai.net" }
+        ]
+    );
+
+}
+
+
+# Mandatory function to be implemented by your login plugin
+# Returns a Mojo::UserAgent object only!
+sub do_login {
+
+    # Login plugins only receive the parameters entered by the user.
+    shift;
+    my ( $useragent, $csrftoken, $cf_clearance ) = @_;
+    return get_user_agent( $useragent, $csrftoken, $cf_clearance );
+}
+
+# get_user_agent(useragent, cf cookies)
+# Try crafting a Mojo::UserAgent object that can access nHentai.
+# Returns the UA object created.
+sub get_user_agent {
+
+    my ( $useragent, $csrftoken, $cf_clearance ) = @_;
+
+    my $logger = get_logger( "nHentai Cloudflare Bypass", "plugins" );
+    my $ua     = Mojo::UserAgent->new;
+
+    if ( $useragent ne "" && $csrftoken ne "" && $cf_clearance ne "") {
+        $logger->info("Useragent and Cookies provided ($useragent $csrftoken $cf_clearance)!");
+        $ua->transactor->name($useragent);
+
+        #Setup the needed cookies
+        $ua->cookie_jar->add(
+            Mojo::Cookie::Response->new(
+                name   => 'csrftoken',
+                value  => $csrftoken,
+                domain => 'nhentai.net',
+                path   => '/'
+            )
+        );
+
+        $ua->cookie_jar->add(
+            Mojo::Cookie::Response->new(
+                name   => 'cf_clearance',
+                value  => $cf_clearance,
+                domain => 'nhentai.net',
+                path   => '/'
+            )
+        );
+
+    } else {
+        $logger->info("No cookies provided, returning blank UserAgent.");
+    }
+
+    return $ua;
+
+}
+
+1;

lib/LANraragi/Plugin/Metadata/nHentai.pm

@@ -21,8 +21,9 @@ sub plugin_info {
         name        => "nHentai",
         type        => "metadata",
         namespace   => "nhplugin",
-        author      => "Difegue",
-        version     => "1.7.1",
+        login_from  => "nhentaicfbypass",
+        author      => "Difegue and others",
+        version     => "1.7.2",
         description => "Searches nHentai for tags matching your archive. 
           <br>Supports reading the ID from files formatted as \"{Id} Title\" and if not, tries to search for a matching gallery.
           <br><i class='fa fa-exclamation-circle'></i> This plugin will use the source: tag of the archive if it exists.",
@@ -40,7 +41,8 @@ sub get_tags {
     shift;
     my $lrr_info = shift;    # Global info hash
     my ($savetitle) = @_;    # Plugin parameters
-
+    my $ua = $lrr_info->{user_agent};    # UserAgent from login plugin
+
     my $logger = get_plugin_logger();
 
     # Work your magic here - You can create subs below to organize the code better
@@ -58,7 +60,7 @@ sub get_tags {
     } else {
 
         #Get Gallery ID by hand if the user didn't specify a URL
-        $galleryID = get_gallery_id_from_title( $lrr_info->{archive_title} );
+        $galleryID = get_gallery_id_from_title( $lrr_info->{archive_title}, $ua );
     }
 
     # Did we detect a nHentai gallery?
@@ -76,7 +78,7 @@ sub get_tags {
         return ( error => "No matching nHentai Gallery Found!" );
     }
 
-    my %hashdata = get_tags_from_NH( $galleryID, $savetitle );
+    my %hashdata = get_tags_from_NH( $galleryID, $savetitle, $ua );
 
     $logger->info( "Sending the following tags to LRR: " . $hashdata{tags} );
 
@@ -91,7 +93,7 @@ sub get_tags {
 #Uses the website's search to find a gallery and returns its content.
 sub get_gallery_dom_by_title {
 
-    my ($title) = @_;
+    my ($title, $ua) = @_;
 
     my $logger = get_plugin_logger();
 
@@ -101,7 +103,6 @@ sub get_gallery_dom_by_title {
     my $URL = "https://nhentai.net/search/?q=" . uri_escape_utf8($title);
 
     $logger->debug("Using URL $URL to search on nH.");
-    my $ua = Mojo::UserAgent->new;
 
     my $res = $ua->get($URL)->result;
     $logger->debug( "Got response " . $res->body );
@@ -115,7 +116,7 @@ sub get_gallery_dom_by_title {
 
 sub get_gallery_id_from_title {
 
-    my ($title) = @_;
+    my ($title, $ua) = @_;
 
     my $logger = get_plugin_logger();
 
@@ -124,7 +125,7 @@ sub get_gallery_id_from_title {
         return $1;
     }
 
-    my $dom = get_gallery_dom_by_title($title);
+    my $dom = get_gallery_dom_by_title($title, $ua);
 
     if ($dom) {
 
@@ -146,10 +147,9 @@ sub get_gallery_id_from_title {
 # retrieves html page from NH
 sub get_html_from_NH {
 
-    my ($gID) = @_;
-
+    my ($gID, $ua) = @_;
+    
     my $URL = "https://nhentai.net/g/$gID/";
-    my $ua  = Mojo::UserAgent->new;
 
     my $res = $ua->get($URL)->result;
 
@@ -213,11 +213,11 @@ sub get_title_from_json {
 
 sub get_tags_from_NH {
 
-    my ( $gID, $savetitle ) = @_;
+    my ( $gID, $savetitle, $ua ) = @_;
 
     my %hashdata = ( tags => "" );
 
-    my $html = get_html_from_NH($gID);
+    my $html = get_html_from_NH($gID, $ua);
     my $json = get_json_from_html($html);
 
     if ($json) {