change uniform interface for more comprehensive access to entity data

rust/src/lib.rs

@@ -13,4 +13,5 @@ pub use parser::*;
 pub use packet::*;
 pub use packet_id::*;
 pub use uniform::*;
+pub use uniform_types::{UniformParseError, PsycScheme, PsycEntity};
 pub use packet_types::{PsycOperator, PsycStateOp};

rust/src/types.rs

@@ -1,6 +1,13 @@
 use std::os::raw::c_char;
 
-#[derive(Clone)]
+/// Return code: OK/error.
+#[repr(C)]
+pub enum PsycRC {
+    PSYC_OK = 1,
+    PSYC_ERROR = -1,
+}
+
+#[derive(Debug)]
 #[repr(C)]
 pub struct PsycString {
     pub length: usize,

rust/src/uniform.rs

@@ -1,3 +1,4 @@
+use types::PsycRC;
 use uniform_types::*;
 use std::os::raw::c_char;
 use std::os::raw::c_int;
@@ -10,8 +11,11 @@ extern "C" {
                           buffer: *const c_char,
                           length: usize)
                           -> c_int;
+
+    fn psyc_entity_type(entity: c_char) -> c_int;
 }
 
+#[derive(Debug)]
 pub struct Uniform<'a> {
     uniform: PsycUniform,
     phantom: PhantomData<&'a Vec<u8>>
@@ -47,14 +51,45 @@ impl<'a> Uniform<'a> {
         self.uniform.valid
     }
 
-    pub fn scheme(&self) -> PsycScheme {
-        self.uniform.uniform_type
+    pub fn entity(&self) -> PsycEntity<'a> {
+        match self.resource() {
+            "" => PsycEntity::Root,
+            _resource => unsafe {
+                let type_specifier = *self.uniform.resource.data;
+                let entity_type_int = psyc_entity_type(type_specifier);
+                if entity_type_int == PsycRC::PSYC_ERROR as c_int {
+                    return PsycEntity::Unknown {
+                        object: self.resource(),
+                        channel: self.channel()
+                    }
+                }
+
+                let entity_type: PsycEntityType = mem::transmute(entity_type_int);
+
+                match entity_type {
+                    PsycEntityType::PSYC_ENTITY_PERSON => PsycEntity::Person {
+                        name: self.nick(),
+                        channel: self.channel()
+                    },
+
+                    PsycEntityType::PSYC_ENTITY_PLACE => PsycEntity::Place {
+                        name: self.nick(),
+                        channel: self.channel()
+                    },
+
+                    PsycEntityType::PSYC_ENTITY_SERVICE => PsycEntity::Service {
+                        name: self.nick(),
+                        channel: self.channel()
+                    },
+                    
+                    PsycEntityType::PSYC_ENTITY_ROOT => PsycEntity::Root
+                }
+            }
+        }
     }
 
-    pub fn name(&self) -> &'a str {
-        unsafe {
-            util::cstring_to_str(self.uniform.user.data, self.uniform.user.length)
-        }
+    pub fn scheme(&self) -> PsycScheme {
+        self.uniform.uniform_type
     }
 
     pub fn password(&self) -> &'a str {
@@ -114,12 +149,6 @@ impl<'a> Uniform<'a> {
         }
     }
 
-    pub fn channel(&self) -> &'a str {
-        unsafe {
-            util::cstring_to_str(self.uniform.channel.data, self.uniform.channel.length)
-        }
-    }
-
     pub fn full(&self) -> &'a str {
         unsafe {
             util::cstring_to_str(self.uniform.full.data, self.uniform.full.length)
@@ -138,21 +167,22 @@ impl<'a> Uniform<'a> {
         }
     }
 
-    pub fn entity(&self) -> &'a str {
-        unsafe {
-            util::cstring_to_str(self.uniform.entity.data, self.uniform.entity.length)
-        }
-    }
-
     pub fn path(&self) -> &'a str {
         unsafe {
             util::cstring_to_str(self.uniform.path.data, self.uniform.path.length)
         }
     }
 
-    pub fn nick(&self) -> &'a str {
+    /* private functions */
+    fn nick(&self) -> &'a str {
         unsafe {
             util::cstring_to_str(self.uniform.nick.data, self.uniform.nick.length)
         }
     }
+
+    fn channel(&self) -> &'a str {
+        unsafe {
+            util::cstring_to_str(self.uniform.channel.data, self.uniform.channel.length)
+        }
+    }
 }

rust/src/uniform_types.rs

@@ -1,6 +1,28 @@
 use types::*;
 
+#[derive(Debug, PartialEq)]
+pub enum PsycEntity<'a> {
+    Root,
+    Person {
+        name: &'a str,
+        channel: &'a str
+    },
+    Place {
+        name: &'a str,
+        channel: &'a str
+    },
+    Service {
+        name: &'a str,
+        channel: &'a str
+    },
+    Unknown {
+        object: &'a str,
+        channel: &'a str
+    }
+}
+
 #[derive(Clone, Copy)]
+#[derive(Debug, PartialEq)]
 #[repr(C)]
 pub enum PsycScheme {
     PSYC_SCHEME_PSYC = 0,
@@ -17,6 +39,7 @@ pub enum PsycEntityType {
     PSYC_ENTITY_SERVICE = '$' as _
 }
 
+#[derive(Debug, PartialEq)]
 #[repr(C)]
 pub enum PsycTransport {
     PSYC_TRANSPORT_TCP = 'c' as _,
@@ -25,6 +48,7 @@ pub enum PsycTransport {
     PSYC_TRANSPORT_GNUNET = 'g' as _,
 }
 
+#[derive(Debug, PartialEq)]
 #[repr(C)]
 pub enum UniformParseError {
     PSYC_PARSE_UNIFORM_INVALID_SLASHES = -7,
@@ -36,7 +60,7 @@ pub enum UniformParseError {
     PSYC_PARSE_UNIFORM_INVALID_SCHEME = -1,
 }
 
-#[derive(Clone)]
+#[derive(Debug)]
 #[repr(C)]
 pub struct PsycUniform {
     pub valid: bool,