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Hulu Plugin Development Thread - Developers only! - Printable Version

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+--- Thread: Hulu Plugin Development Thread - Developers only! (/showthread.php?tid=45888)

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- zoltar12 - 2009-09-16 23:52

Is your C++ patch to fix an issue in XBMC that was causing the HULU plugin to no longer work? Or was the patch for flvstreamer?
Quote:Cool, I see my patch has been added to flvstreamer's svn now.


- highlandsun - 2009-10-04 03:18

The patch was for a bug in flvstreamer. I haven't looked at the XBMC hulu plugin lately.

- highlandsun - 2009-10-14 10:39

Locutus73 Wrote:Hi, I just wrote a set of scripts useful to retrive Hulu’s pid and auth parameters.
These tools can be used as helpers for applications like get_iplayer http://linuxcentre.net/getiplayer/
List of contents:
hulu-get-keys.c : Based on decswf.c by hyc@highlandsun.com, this program must be compiled against
swfdec-0.9.2 and is useful to retrive pid encryption keys from enc.swf file
downloaded from Hulu.

I've just patched this code to also retrieve the keys for decrypting the SMIL file. Finally got tired of extracting them by hand...

Code:
--- hulu-get-keys.c    2009-03-12 23:11:30.000000000 -0700
+++ hulu-get-keys.c.N    2009-10-14 01:35:09.000000000 -0700
@@ -1,6 +1,7 @@
/* Invoke a function from a given swf and print the result.
  * 2009-03-11 Locutus73
  * based on decswf.c 2009-02-22 hyc@highlandsun.com
+ * updated again on 2009-10-14 hyc@highlandsun.com
  *
  * Tested with swfdec-0.9.2. Uses library-internal APIs, use
  * at your own risk...
@@ -23,15 +24,28 @@
struct _SwfdecSandbox *swfdec_sandbox_get_for_url(SwfdecPlayer *,
    SwfdecURL *,guint,gboolean);

+/* I just use this inside gdb when examining objects. e.g.
+ * call g_hash_table_foreach(keypair->properties, ghfunc, 0)
+ * which will tell you that the keypair object has some child objects
+ * a2, a3, and a couple others I didn't bother to look at...
+ * -- hyc
+ */
+static void ghfunc(gpointer key, gpointer value, gpointer user_data)
+{
+    printf("%s: %p\n", key, value);
+}
+
int main (int argc, char **argv)
{
    SwfdecPlayer* player;
    SwfdecAsContext *ctx;
    SwfdecAsValue out;
    SwfdecAsObject *obj;
+    SwfdecAsObject *xmlkeys, *keypair;
    struct _SwfdecSandbox *sbox;
-    const char *txt;
+    const char *txt, *a2, *a3;
    gboolean res;
+    gint32 i, nkeys;

    if (argc < 2)
    {
@@ -51,7 +65,7 @@
    }
    swfdec_player_set_url(player,url);

-    // We wait till the initialization is completed
+    /* We wait till the initialization is completed */
    while (!swfdec_player_is_initialized (player))
    {
            long next = swfdec_player_get_next_event (player);
@@ -88,10 +102,38 @@
        fprintf(stderr, "class copyrighted_strings not found\n");
        return 1;
    }
-    obj = SWFDEC_AS_VALUE_GET_OBJECT(out);
    txt = swfdec_as_value_to_string(ctx,out);
    puts(txt);

-    return !res;
+    a2 = swfdec_as_context_get_string(ctx, "a2");    
+    a3 = swfdec_as_context_get_string(ctx, "a3");    
+    txt = swfdec_as_context_get_string(ctx, "xmldecskeys");    
+    res = swfdec_as_object_get_variable(obj, txt, &out);
+    if (!res) {
+        fprintf(stderr, "class xmldecskeys not found\n");
+        return 1;
+    }
+    xmlkeys = SWFDEC_AS_VALUE_GET_OBJECT(out);
+    nkeys = swfdec_as_array_get_length(xmlkeys);
+    for (i=0; i<nkeys; i++) {
+        swfdec_as_array_get_value(xmlkeys, i, &out);
+        keypair = SWFDEC_AS_VALUE_GET_OBJECT(out);
+        res = swfdec_as_object_get_variable(keypair, a2, &out);
+        if (!res) {
+            fprintf(stderr, "class xmldecskeys[%d].a2 not found\n", i);
+            return 1;
+        }
+        txt = swfdec_as_value_to_string(ctx,out);
+        puts(txt);

+        res = swfdec_as_object_get_variable(keypair, a3, &out);
+        if (!res) {
+            fprintf(stderr, "class xmldecskeys[%d].a3 not found\n", i);
+            return 1;
+        }
+        txt = swfdec_as_value_to_string(ctx,out);
+        puts(txt);
+    }
+
+    return !res;
}


- highlandsun - 2009-11-02 10:15

And one more patch to retrieve the v= parameter. (This must be applied on top of the previous patch.) Also I've formatted the output as perl source:

Code:
diff -u -r1.2 ./hulu-get-keys.c
--- ./hulu-get-keys.c    2009/10/28 03:05:45    1.2
+++ ./hulu-get-keys.c    2009/11/02 08:14:10
@@ -41,7 +41,7 @@
    SwfdecAsContext *ctx;
    SwfdecAsValue out;
    SwfdecAsObject *obj;
-    SwfdecAsObject *xmlkeys, *keypair;
+    SwfdecAsObject *keys, *keypair;
    struct _SwfdecSandbox *sbox;
    const char *txt, *a2, *a3;
    gboolean res;
@@ -96,14 +96,27 @@
    }
    obj = SWFDEC_AS_VALUE_GET_OBJECT(out);

+    txt = swfdec_as_context_get_string(ctx, "v");    
+    res = swfdec_as_object_call(obj, txt, 0, NULL, &out);
+    txt = swfdec_as_value_to_string(ctx,out);
+    printf("my $v='%s';\n", txt);
+
    txt = swfdec_as_context_get_string(ctx, "copyrighted_strings");    
    res = swfdec_as_object_get_variable(obj, txt, &out);
    if (!res) {
        fprintf(stderr, "class copyrighted_strings not found\n");
        return 1;
    }
-    txt = swfdec_as_value_to_string(ctx,out);
-    puts(txt);
+    keys = SWFDEC_AS_VALUE_GET_OBJECT(out);
+    nkeys = swfdec_as_array_get_length(keys);
+    printf("my @pid=(");
+    for (i=0; i<nkeys; i++) {
+        swfdec_as_array_get_value(keys, i, &out);
+        txt = swfdec_as_value_to_string(ctx,out);
+        if (i) printf(",");
+        printf("\n\t'%s'", txt);
+    }
+    printf(");\n");

    a2 = swfdec_as_context_get_string(ctx, "a2");    
    a3 = swfdec_as_context_get_string(ctx, "a3");    
@@ -113,10 +126,11 @@
        fprintf(stderr, "class xmldecskeys not found\n");
        return 1;
    }
-    xmlkeys = SWFDEC_AS_VALUE_GET_OBJECT(out);
-    nkeys = swfdec_as_array_get_length(xmlkeys);
+    keys = SWFDEC_AS_VALUE_GET_OBJECT(out);
+    nkeys = swfdec_as_array_get_length(keys);
+    printf("my @smil=(");
    for (i=0; i<nkeys; i++) {
-        swfdec_as_array_get_value(xmlkeys, i, &out);
+        swfdec_as_array_get_value(keys, i, &out);
        keypair = SWFDEC_AS_VALUE_GET_OBJECT(out);
        res = swfdec_as_object_get_variable(keypair, a2, &out);
        if (!res) {
@@ -124,7 +138,8 @@
            return 1;
        }
        txt = swfdec_as_value_to_string(ctx,out);
-        puts(txt);
+        if (i) printf(",");
+        printf("\n['%s', ", txt);

        res = swfdec_as_object_get_variable(keypair, a3, &out);
        if (!res) {
@@ -132,8 +147,9 @@
            return 1;
        }
        txt = swfdec_as_value_to_string(ctx,out);
-        puts(txt);
+        printf("'%s']", txt);
    }
+    printf(");\n");

    return !res;
}


- highlandsun - 2010-03-19 21:21

http://code.google.com/p/xbmc-addons/issues/detail?id=49

Need some help figuring out why the buffering is broken. Perhaps it will work better in a newer SVN rev?

Yes, it works fine using r28276.

- highlandsun - 2010-04-02 12:34

They are in the midst of migrating to a new CDN, and some of the parsing needs to be fixed again.

Is anyone using this plugin now, or am I just talking to myself? If no one's using it I'm not going to bother updating the patch.

- maruchan - 2010-04-02 16:33

highlandsun Wrote:Is anyone using this plugin now, or am I just talking to myself? If no one's using it I'm not going to bother updating the patch.

The plugin is working again? I've been following this thread as Hulu support in XBMC again has been my dream since it broke... I'm currently switching between XBMC and Boxee simply for the Hulu support. I'm not familiar with using a diff patch nor do I have the original Hulu plugin to patch it with, but I'll try to get this up and running today. Thanks!

- cbrunhaver - 2010-04-02 22:55

ditto. It would be fantastic to get hulu support going again.

-Chris

- highlandsun - 2010-04-03 02:02

You're going to need several customizations to get this working; the plugin uses some python crypto modules that aren't part of the default XBMC build. I guess you should be able to just install the modules in your ~/.xbmc directory but I don't know the details. (And since it does the crypto in python, you no longer need gnash or any other external programs.)

You also need to recompile XBMC anyway, incorporating the patch here http://trac.xbmc.org/ticket/8971 (which I also discussed in this thread http://forum.xbmc.org/showthread.php?tid=70512 )

Since I already have python 2.6 installed on my machine, I configured my XBMC build to use the system python instead of its internal one.

When applying the patch, I just replace xbmc/xbmc/lib/libRTMP with a symlink to rtmpdump/librtmp. That way I don't have to change any other link or compile paths.

I've uploaded my plugin to http://highlandsun.com/hyc/Hulu.zip, you should be able to just extract it in your plugins folder. (It's the actual source tree, so it contains a lot of extra junk you don't need. It also contains the SVN history so you can type "svn diff" to see what I fixed.)

- highlandsun - 2010-04-03 08:09

I just noticed, this plugin is using the RSS feeds to populate the list of episodes. But the RSS feeds only show "new" material, stuff that was recently added. So e.g. if a show has 2 seasons, the RSS feed will likely only list the latest episodes in season 2. That whole part needs to be reworked...