MsnObject *
msn_object_new_from_image (PecanBuffer *image,
const char *location,
const char *creator,
MsnObjectType type)
{
MsnObject *msnobj;
PurpleCipherContext *ctx;
char *buf;
char *base64;
unsigned char digest[20];
msnobj = NULL;
if (!image)
return msnobj;
/* New object */
msnobj = msn_object_new ();
msn_object_set_local (msnobj);
msn_object_set_type (msnobj, type);
msn_object_set_location (msnobj, location);
msn_object_set_creator (msnobj, creator);
msn_object_set_image (msnobj, image);
/* Compute the SHA1D field. */
memset (digest, 0, sizeof (digest));
ctx = purple_cipher_context_new_by_name ("sha1", NULL);
purple_cipher_context_append (ctx, (const gpointer) image->data, image->len);
purple_cipher_context_digest (ctx, sizeof (digest), digest, NULL);
base64 = purple_base64_encode (digest, sizeof (digest));
msn_object_set_sha1d (msnobj, base64);
g_free (base64);
msn_object_set_size (msnobj, image->len);
/* Compute the SHA1C field. */
buf = g_strdup_printf ("Creator%sSize%dType%dLocation%sFriendly%sSHA1D%s",
msn_object_get_creator (msnobj),
msn_object_get_size (msnobj),
msn_object_get_type (msnobj),
msn_object_get_location (msnobj),
msn_object_get_friendly (msnobj),
msn_object_get_sha1d (msnobj));
memset (digest, 0, sizeof (digest));
purple_cipher_context_reset (ctx, NULL);
purple_cipher_context_append (ctx, (const guchar *) buf, strlen (buf));
purple_cipher_context_digest (ctx, sizeof (digest), digest, NULL);
purple_cipher_context_destroy (ctx);
g_free (buf);
base64 = purple_base64_encode (digest, sizeof (digest));
msn_object_set_sha1c (msnobj, base64);
g_free (base64);
return msnobj;
}
MsnObject*
msn_object_new_from_image(PurpleStoredImage *img, const char *location,
const char *creator, MsnObjectType type)
{
MsnObject *msnobj;
PurpleHash *hash;
char *buf;
gconstpointer data;
size_t size;
char *base64;
unsigned char digest[20];
msnobj = NULL;
if (img == NULL)
return msnobj;
size = purple_imgstore_get_size(img);
data = purple_imgstore_get_data(img);
/* New object */
msnobj = msn_object_new();
msn_object_set_local(msnobj);
msn_object_set_type(msnobj, type);
msn_object_set_location(msnobj, location);
msn_object_set_creator(msnobj, creator);
msn_object_set_image(msnobj, img);
/* Compute the SHA1D field. */
memset(digest, 0, sizeof(digest));
hash = purple_sha1_hash_new();
purple_hash_append(hash, data, size);
purple_hash_digest(hash, digest, sizeof(digest));
base64 = purple_base64_encode(digest, sizeof(digest));
msn_object_set_sha1d(msnobj, base64);
g_free(base64);
msn_object_set_size(msnobj, size);
/* Compute the SHA1C field. */
buf = g_strdup_printf(
"Creator%sSize%dType%dLocation%sFriendly%sSHA1D%s",
msn_object_get_creator(msnobj),
msn_object_get_size(msnobj),
msn_object_get_type(msnobj),
msn_object_get_location(msnobj),
msn_object_get_friendly(msnobj),
msn_object_get_sha1d(msnobj));
memset(digest, 0, sizeof(digest));
purple_hash_reset(hash);
purple_hash_append(hash, (const guchar *)buf, strlen(buf));
purple_hash_digest(hash, digest, sizeof(digest));
g_object_unref(hash);
g_free(buf);
base64 = purple_base64_encode(digest, sizeof(digest));
msn_object_set_sha1c(msnobj, base64);
g_free(base64);
return msnobj;
}
