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-rw-r--r--src/playlist/RssPlaylistPlugin.cxx172
1 files changed, 37 insertions, 135 deletions
diff --git a/src/playlist/RssPlaylistPlugin.cxx b/src/playlist/RssPlaylistPlugin.cxx
index e2a44bfd3..604f99baf 100644
--- a/src/playlist/RssPlaylistPlugin.cxx
+++ b/src/playlist/RssPlaylistPlugin.cxx
@@ -21,21 +21,13 @@
#include "RssPlaylistPlugin.hxx"
#include "PlaylistPlugin.hxx"
#include "MemorySongEnumerator.hxx"
-#include "InputStream.hxx"
#include "Song.hxx"
-#include "tag/Tag.hxx"
+#include "tag/TagBuilder.hxx"
#include "util/ASCII.hxx"
#include "util/Error.hxx"
-#include "util/Domain.hxx"
+#include "Expat.hxx"
#include "Log.hxx"
-#include <glib.h>
-
-#include <assert.h>
-#include <string.h>
-
-static constexpr Domain rss_domain("rss");
-
/**
* This is the state object for the GLib XML parser.
*/
@@ -44,7 +36,7 @@ struct RssParser {
* The list of songs (in reverse order because that's faster
* while adding).
*/
- std::forward_list<SongPointer> songs;
+ std::forward_list<DetachedSong> songs;
/**
* The current position in the XML file.
@@ -58,35 +50,23 @@ struct RssParser {
* valid if state==ITEM. TAG_NUM_OF_ITEM_TYPES means there
* is no (known) tag.
*/
- TagType tag;
+ TagType tag_type;
/**
- * The current song. It is allocated after the "location"
+ * The current song URI. It is set by the "enclosure"
* element.
*/
- Song *song;
+ std::string location;
+
+ TagBuilder tag_builder;
RssParser()
:state(ROOT) {}
};
-static const gchar *
-get_attribute(const gchar **attribute_names, const gchar **attribute_values,
- const gchar *name)
-{
- for (unsigned i = 0; attribute_names[i] != nullptr; ++i)
- if (StringEqualsCaseASCII(attribute_names[i], name))
- return attribute_values[i];
-
- return nullptr;
-}
-
-static void
-rss_start_element(gcc_unused GMarkupParseContext *context,
- const gchar *element_name,
- const gchar **attribute_names,
- const gchar **attribute_values,
- gpointer user_data, gcc_unused GError **error)
+static void XMLCALL
+rss_start_element(void *user_data, const XML_Char *element_name,
+ const XML_Char **atts)
{
RssParser *parser = (RssParser *)user_data;
@@ -94,46 +74,29 @@ rss_start_element(gcc_unused GMarkupParseContext *context,
case RssParser::ROOT:
if (StringEqualsCaseASCII(element_name, "item")) {
parser->state = RssParser::ITEM;
- parser->song = Song::NewRemote("rss:");
- parser->tag = TAG_NUM_OF_ITEM_TYPES;
+ parser->location.clear();
+ parser->tag_type = TAG_NUM_OF_ITEM_TYPES;
}
break;
case RssParser::ITEM:
if (StringEqualsCaseASCII(element_name, "enclosure")) {
- const gchar *href = get_attribute(attribute_names,
- attribute_values,
- "url");
- if (href != nullptr) {
- /* create new song object, and copy
- the existing tag over; we cannot
- replace the existing song's URI,
- because that attribute is
- immutable */
- Song *song = Song::NewRemote(href);
-
- if (parser->song != nullptr) {
- song->tag = parser->song->tag;
- parser->song->tag = nullptr;
- parser->song->Free();
- }
-
- parser->song = song;
- }
+ const char *href =
+ ExpatParser::GetAttributeCase(atts, "url");
+ if (href != nullptr)
+ parser->location = href;
} else if (StringEqualsCaseASCII(element_name, "title"))
- parser->tag = TAG_TITLE;
+ parser->tag_type = TAG_TITLE;
else if (StringEqualsCaseASCII(element_name, "itunes:author"))
- parser->tag = TAG_ARTIST;
+ parser->tag_type = TAG_ARTIST;
break;
}
}
-static void
-rss_end_element(gcc_unused GMarkupParseContext *context,
- const gchar *element_name,
- gpointer user_data, gcc_unused GError **error)
+static void XMLCALL
+rss_end_element(void *user_data, const XML_Char *element_name)
{
RssParser *parser = (RssParser *)user_data;
@@ -143,23 +106,20 @@ rss_end_element(gcc_unused GMarkupParseContext *context,
case RssParser::ITEM:
if (StringEqualsCaseASCII(element_name, "item")) {
- if (strcmp(parser->song->uri, "rss:") != 0)
- parser->songs.emplace_front(parser->song);
- else
- parser->song->Free();
+ if (!parser->location.empty())
+ parser->songs.emplace_front(std::move(parser->location),
+ parser->tag_builder.Commit());
parser->state = RssParser::ROOT;
} else
- parser->tag = TAG_NUM_OF_ITEM_TYPES;
+ parser->tag_type = TAG_NUM_OF_ITEM_TYPES;
break;
}
}
-static void
-rss_text(gcc_unused GMarkupParseContext *context,
- const gchar *text, gsize text_len,
- gpointer user_data, gcc_unused GError **error)
+static void XMLCALL
+rss_char_data(void *user_data, const XML_Char *s, int len)
{
RssParser *parser = (RssParser *)user_data;
@@ -168,34 +128,13 @@ rss_text(gcc_unused GMarkupParseContext *context,
break;
case RssParser::ITEM:
- if (parser->tag != TAG_NUM_OF_ITEM_TYPES) {
- if (parser->song->tag == nullptr)
- parser->song->tag = new Tag();
- parser->song->tag->AddItem(parser->tag,
- text, text_len);
- }
+ if (parser->tag_type != TAG_NUM_OF_ITEM_TYPES)
+ parser->tag_builder.AddItem(parser->tag_type, s, len);
break;
}
}
-static const GMarkupParser rss_parser = {
- rss_start_element,
- rss_end_element,
- rss_text,
- nullptr,
- nullptr,
-};
-
-static void
-rss_parser_destroy(gpointer data)
-{
- RssParser *parser = (RssParser *)data;
-
- if (parser->state >= RssParser::ITEM)
- parser->song->Free();
-}
-
/*
* The playlist object
*
@@ -205,58 +144,21 @@ static SongEnumerator *
rss_open_stream(InputStream &is)
{
RssParser parser;
- GMarkupParseContext *context;
- char buffer[1024];
- size_t nbytes;
- bool success;
- Error error2;
- GError *error = nullptr;
-
- /* parse the RSS XML file */
-
- context = g_markup_parse_context_new(&rss_parser,
- G_MARKUP_TREAT_CDATA_AS_TEXT,
- &parser, rss_parser_destroy);
- while (true) {
- nbytes = is.LockRead(buffer, sizeof(buffer), error2);
- if (nbytes == 0) {
- if (error2.IsDefined()) {
- g_markup_parse_context_free(context);
- LogError(error2);
- return nullptr;
- }
+ {
+ ExpatParser expat(&parser);
+ expat.SetElementHandler(rss_start_element, rss_end_element);
+ expat.SetCharacterDataHandler(rss_char_data);
- break;
- }
-
- success = g_markup_parse_context_parse(context, buffer, nbytes,
- &error);
- if (!success) {
- FormatError(rss_domain,
- "XML parser failed: %s", error->message);
- g_error_free(error);
- g_markup_parse_context_free(context);
+ Error error;
+ if (!expat.Parse(is, error)) {
+ LogError(error);
return nullptr;
}
}
- success = g_markup_parse_context_end_parse(context, &error);
- if (!success) {
- FormatError(rss_domain,
- "XML parser failed: %s", error->message);
- g_error_free(error);
- g_markup_parse_context_free(context);
- return nullptr;
- }
-
parser.songs.reverse();
- MemorySongEnumerator *playlist =
- new MemorySongEnumerator(std::move(parser.songs));
-
- g_markup_parse_context_free(context);
-
- return playlist;
+ return new MemorySongEnumerator(std::move(parser.songs));
}
static const char *const rss_suffixes[] = {
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-28 07:00:32 +0000