Don't display protocol inscriptions on homepage

src/index.rs

@@ -55,6 +55,7 @@ define_multimap_table! { SATPOINT_TO_INSCRIPTION_ID, &SatPointValue, &Inscriptio
 define_multimap_table! { SAT_TO_INSCRIPTION_ID, u64, &InscriptionIdValue }
 define_table! { HEIGHT_TO_BLOCK_HASH, u64, &BlockHashValue }
 define_table! { HEIGHT_TO_LAST_SEQUENCE_NUMBER, u64, u64 }
+define_table! { HOME_INSCRIPTIONS, u64, &InscriptionIdValue }
 define_table! { INSCRIPTION_ID_TO_INSCRIPTION_ENTRY, &InscriptionIdValue, InscriptionEntryValue }
 define_table! { INSCRIPTION_ID_TO_RUNE, &InscriptionIdValue, u128 }
 define_table! { INSCRIPTION_ID_TO_SATPOINT, &InscriptionIdValue, &SatPointValue }
@@ -274,6 +275,7 @@ impl Index {
         tx.open_multimap_table(SAT_TO_INSCRIPTION_ID)?;
         tx.open_table(HEIGHT_TO_BLOCK_HASH)?;
         tx.open_table(HEIGHT_TO_LAST_SEQUENCE_NUMBER)?;
+        tx.open_table(HOME_INSCRIPTIONS)?;
         tx.open_table(INSCRIPTION_ID_TO_INSCRIPTION_ENTRY)?;
         tx.open_table(INSCRIPTION_ID_TO_RUNE)?;
         tx.open_table(INSCRIPTION_ID_TO_SATPOINT)?;
@@ -1308,6 +1310,19 @@ impl Index {
     ))
   }
 
+  pub(crate) fn get_home_inscriptions(&self) -> Result<Vec<InscriptionId>> {
+    Ok(
+      self
+        .database
+        .begin_read()?
+        .open_table(HOME_INSCRIPTIONS)?
+        .iter()?
+        .rev()
+        .flat_map(|result| result.map(|(_number, id)| InscriptionId::load(*id.value())))
+        .collect(),
+    )
+  }
+
   pub(crate) fn get_feed_inscriptions(&self, n: usize) -> Result<Vec<(u64, InscriptionId)>> {
     Ok(
       self

src/index/updater.rs

@@ -378,13 +378,14 @@ impl<'index> Updater<'_> {
 
     let mut height_to_block_hash = wtx.open_table(HEIGHT_TO_BLOCK_HASH)?;
     let mut height_to_last_sequence_number = wtx.open_table(HEIGHT_TO_LAST_SEQUENCE_NUMBER)?;
+    let mut home_inscriptions = wtx.open_table(HOME_INSCRIPTIONS)?;
+    let mut inscription_id_to_children = wtx.open_multimap_table(INSCRIPTION_ID_TO_CHILDREN)?;
     let mut inscription_id_to_inscription_entry =
       wtx.open_table(INSCRIPTION_ID_TO_INSCRIPTION_ENTRY)?;
     let mut inscription_id_to_satpoint = wtx.open_table(INSCRIPTION_ID_TO_SATPOINT)?;
     let mut inscription_number_to_inscription_id =
       wtx.open_table(INSCRIPTION_NUMBER_TO_INSCRIPTION_ID)?;
     let mut sat_to_inscription_id = wtx.open_multimap_table(SAT_TO_INSCRIPTION_ID)?;
-    let mut inscription_id_to_children = wtx.open_multimap_table(INSCRIPTION_ID_TO_CHILDREN)?;
     let mut satpoint_to_inscription_id = wtx.open_multimap_table(SATPOINT_TO_INSCRIPTION_ID)?;
     let mut sequence_number_to_inscription_id =
       wtx.open_table(SEQUENCE_NUMBER_TO_INSCRIPTION_ID)?;
@@ -410,24 +411,38 @@ impl<'index> Updater<'_> {
       .map(|unbound_inscriptions| unbound_inscriptions.value())
       .unwrap_or(0);
 
-    let mut inscription_updater = InscriptionUpdater::new(
-      self.height,
-      &mut inscription_id_to_children,
-      &mut inscription_id_to_satpoint,
-      value_receiver,
-      &mut inscription_id_to_inscription_entry,
-      lost_sats,
-      &mut inscription_number_to_inscription_id,
-      cursed_inscription_count,
+    let next_sequence_number = sequence_number_to_inscription_id
+      .iter()?
+      .next_back()
+      .and_then(|result| result.ok())
+      .map(|(number, _id)| number.value() + 1)
+      .unwrap_or(0);
+
+    let home_inscription_count = home_inscriptions.len()?;
+
+    let mut inscription_updater = InscriptionUpdater {
       blessed_inscription_count,
-      &mut sequence_number_to_inscription_id,
-      &mut outpoint_to_value,
-      &mut sat_to_inscription_id,
-      &mut satpoint_to_inscription_id,
-      block.header.time,
+      cursed_inscription_count,
+      flotsam: Vec::new(),
+      height: self.height,
+      home_inscription_count,
+      home_inscriptions: &mut home_inscriptions,
+      id_to_children: &mut inscription_id_to_children,
+      id_to_entry: &mut inscription_id_to_inscription_entry,
+      id_to_satpoint: &mut inscription_id_to_satpoint,
+      inscription_number_to_id: &mut inscription_number_to_inscription_id,
+      lost_sats,
+      next_sequence_number,
+      outpoint_to_value: &mut outpoint_to_value,
+      reward: Height(self.height).subsidy(),
+      sat_to_inscription_id: &mut sat_to_inscription_id,
+      satpoint_to_id: &mut satpoint_to_inscription_id,
+      sequence_number_to_id: &mut sequence_number_to_inscription_id,
+      timestamp: block.header.time,
       unbound_inscriptions,
       value_cache,
-    )?;
+      value_receiver,
+    };
 
     if self.index.index_sats {
       let mut sat_to_satpoint = wtx.open_table(SAT_TO_SATPOINT)?;

src/index/updater/inscription_updater.rs

@@ -12,6 +12,7 @@ enum Origin {
   New {
     cursed: bool,
     fee: u64,
+    hidden: bool,
     parent: Option<InscriptionId>,
     pointer: Option<u64>,
     unbound: bool,
@@ -22,88 +23,35 @@ enum Origin {
 }
 
 pub(super) struct InscriptionUpdater<'a, 'db, 'tx> {
-  flotsam: Vec<Flotsam>,
-  height: u64,
-  id_to_children:
+  pub(super) flotsam: Vec<Flotsam>,
+  pub(super) height: u64,
+  pub(super) home_inscription_count: u64,
+  pub(super) home_inscriptions: &'a mut Table<'db, 'tx, u64, &'static InscriptionIdValue>,
+  pub(super) id_to_children:
     &'a mut MultimapTable<'db, 'tx, &'static InscriptionIdValue, &'static InscriptionIdValue>,
-  id_to_satpoint: &'a mut Table<'db, 'tx, &'static InscriptionIdValue, &'static SatPointValue>,
-  value_receiver: &'a mut Receiver<u64>,
-  id_to_entry: &'a mut Table<'db, 'tx, &'static InscriptionIdValue, InscriptionEntryValue>,
+  pub(super) id_to_satpoint:
+    &'a mut Table<'db, 'tx, &'static InscriptionIdValue, &'static SatPointValue>,
+  pub(super) value_receiver: &'a mut Receiver<u64>,
+  pub(super) id_to_entry:
+    &'a mut Table<'db, 'tx, &'static InscriptionIdValue, InscriptionEntryValue>,
   pub(super) lost_sats: u64,
   pub(super) cursed_inscription_count: u64,
   pub(super) blessed_inscription_count: u64,
   pub(super) next_sequence_number: u64,
-  inscription_number_to_id: &'a mut Table<'db, 'tx, i64, &'static InscriptionIdValue>,
-  sequence_number_to_id: &'a mut Table<'db, 'tx, u64, &'static InscriptionIdValue>,
-  outpoint_to_value: &'a mut Table<'db, 'tx, &'static OutPointValue, u64>,
-  reward: u64,
-  sat_to_inscription_id: &'a mut MultimapTable<'db, 'tx, u64, &'static InscriptionIdValue>,
-  satpoint_to_id:
+  pub(super) inscription_number_to_id: &'a mut Table<'db, 'tx, i64, &'static InscriptionIdValue>,
+  pub(super) sequence_number_to_id: &'a mut Table<'db, 'tx, u64, &'static InscriptionIdValue>,
+  pub(super) outpoint_to_value: &'a mut Table<'db, 'tx, &'static OutPointValue, u64>,
+  pub(super) reward: u64,
+  pub(super) sat_to_inscription_id:
+    &'a mut MultimapTable<'db, 'tx, u64, &'static InscriptionIdValue>,
+  pub(super) satpoint_to_id:
     &'a mut MultimapTable<'db, 'tx, &'static SatPointValue, &'static InscriptionIdValue>,
-  timestamp: u32,
+  pub(super) timestamp: u32,
   pub(super) unbound_inscriptions: u64,
-  value_cache: &'a mut HashMap<OutPoint, u64>,
+  pub(super) value_cache: &'a mut HashMap<OutPoint, u64>,
 }
 
 impl<'a, 'db, 'tx> InscriptionUpdater<'a, 'db, 'tx> {
-  pub(super) fn new(
-    height: u64,
-    id_to_children: &'a mut MultimapTable<
-      'db,
-      'tx,
-      &'static InscriptionIdValue,
-      &'static InscriptionIdValue,
-    >,
-    id_to_satpoint: &'a mut Table<'db, 'tx, &'static InscriptionIdValue, &'static SatPointValue>,
-    value_receiver: &'a mut Receiver<u64>,
-    id_to_entry: &'a mut Table<'db, 'tx, &'static InscriptionIdValue, InscriptionEntryValue>,
-    lost_sats: u64,
-    inscription_number_to_id: &'a mut Table<'db, 'tx, i64, &'static InscriptionIdValue>,
-    cursed_inscription_count: u64,
-    blessed_inscription_count: u64,
-    sequence_number_to_id: &'a mut Table<'db, 'tx, u64, &'static InscriptionIdValue>,
-    outpoint_to_value: &'a mut Table<'db, 'tx, &'static OutPointValue, u64>,
-    sat_to_inscription_id: &'a mut MultimapTable<'db, 'tx, u64, &'static InscriptionIdValue>,
-    satpoint_to_id: &'a mut MultimapTable<
-      'db,
-      'tx,
-      &'static SatPointValue,
-      &'static InscriptionIdValue,
-    >,
-    timestamp: u32,
-    unbound_inscriptions: u64,
-    value_cache: &'a mut HashMap<OutPoint, u64>,
-  ) -> Result<Self> {
-    let next_sequence_number = sequence_number_to_id
-      .iter()?
-      .next_back()
-      .and_then(|result| result.ok())
-      .map(|(number, _id)| number.value() + 1)
-      .unwrap_or(0);
-
-    Ok(Self {
-      flotsam: Vec::new(),
-      height,
-      id_to_children,
-      id_to_satpoint,
-      value_receiver,
-      id_to_entry,
-      lost_sats,
-      cursed_inscription_count,
-      blessed_inscription_count,
-      next_sequence_number,
-      sequence_number_to_id,
-      inscription_number_to_id,
-      outpoint_to_value,
-      reward: Height(height).subsidy(),
-      sat_to_inscription_id,
-      satpoint_to_id,
-      timestamp,
-      unbound_inscriptions,
-      value_cache,
-    })
-  }
-
   pub(super) fn index_envelopes(
     &mut self,
     tx: &Transaction,
@@ -248,6 +196,7 @@ impl<'a, 'db, 'tx> InscriptionUpdater<'a, 'db, 'tx> {
           origin: Origin::New {
             cursed,
             fee: 0,
+            hidden: inscription.payload.hidden(),
             parent: inscription.payload.parent(),
             pointer: inscription.payload.pointer(),
             unbound,
@@ -290,6 +239,7 @@ impl<'a, 'db, 'tx> InscriptionUpdater<'a, 'db, 'tx> {
             Origin::New {
               cursed,
               fee: _,
+              hidden,
               parent,
               pointer,
               unbound,
@@ -300,8 +250,9 @@ impl<'a, 'db, 'tx> InscriptionUpdater<'a, 'db, 'tx> {
             inscription_id,
             offset,
             origin: Origin::New {
-              fee: (total_input_value - total_output_value) / u64::from(id_counter),
               cursed,
+              fee: (total_input_value - total_output_value) / u64::from(id_counter),
+              hidden,
               parent,
               pointer,
               unbound,
@@ -444,6 +395,7 @@ impl<'a, 'db, 'tx> InscriptionUpdater<'a, 'db, 'tx> {
         fee,
         parent,
         unbound,
+        hidden,
         ..
       } => {
         let inscription_number = if cursed {
@@ -500,6 +452,18 @@ impl<'a, 'db, 'tx> InscriptionUpdater<'a, 'db, 'tx> {
             .insert(&parent.store(), &inscription_id)?;
         }
 
+        if !hidden {
+          self
+            .home_inscriptions
+            .insert(&sequence_number, &inscription_id)?;
+
+          if self.home_inscription_count == 100 {
+            self.home_inscriptions.pop_first()?;
+          } else {
+            self.home_inscription_count += 1;
+          }
+        }
+
         unbound
       }
     };

src/inscription.rs

@@ -266,6 +266,40 @@ impl Inscription {
 
     witness
   }
+
+  pub(crate) fn hidden(&self) -> bool {
+    let Some(content_type) = self.content_type() else {
+      return false;
+    };
+
+    if content_type != "text/plain" && content_type != "text/plain;charset=utf-8" {
+      return false;
+    }
+
+    let Some(body) = &self.body else {
+      return false;
+    };
+
+    let Ok(text) = str::from_utf8(body) else {
+      return false;
+    };
+
+    let trimmed = text.trim();
+
+    if trimmed.starts_with('{') && trimmed.ends_with('}') {
+      return true;
+    }
+
+    if trimmed.starts_with("gib bc1") {
+      return true;
+    }
+
+    if trimmed.ends_with(".bitmap") {
+      return true;
+    }
+
+    false
+  }
 }
 
 #[cfg(test)]
@@ -689,4 +723,39 @@ mod tests {
 
     assert_eq!(inscription.pointer, Some(vec![0, 1]));
   }
+
+  #[test]
+  fn hidden() {
+    #[track_caller]
+    fn case(content_type: Option<&str>, body: Option<&str>, expected: bool) {
+      assert_eq!(
+        Inscription {
+          content_type: content_type.map(|content_type| content_type.as_bytes().into()),
+          body: body.map(|content_type| content_type.as_bytes().into()),
+          ..Default::default()
+        }
+        .hidden(),
+        expected
+      );
+    }
+
+    case(None, None, false);
+    case(Some("foo"), None, false);
+    case(Some("foo"), Some("{}"), false);
+    case(Some("text/plain"), None, false);
+    case(Some("text/plain"), Some("foo{}bar"), false);
+
+    case(Some("text/plain"), Some("foo.bitmap"), true);
+    case(Some("text/plain"), Some("gib bc1"), true);
+    case(Some("text/plain"), Some("{}"), true);
+    case(Some("text/plain"), Some(" {} "), true);
+    case(Some("text/plain;charset=utf-8"), Some("foo.bitmap"), true);
+
+    assert!(!Inscription {
+      content_type: Some("text/plain".as_bytes().into()),
+      body: Some(b"{\xc3\x28}".as_slice().into()),
+      ..Default::default()
+    }
+    .hidden());
+  }
 }