wip trace

src/common_fields.rs

@@ -24,7 +24,7 @@ use crate::model;
 /// Header section
 ///
 /// See: https://www.rfc-editor.org/rfc/rfc5322.html#section-2.2
-pub fn header_section(input: &str) -> IResult<&str, PermissiveHeaderSection> {
+pub fn section(input: &str) -> IResult<&str, PermissiveHeaderSection> {
     let (input, headers) = fold_many0(
         header_field,
         PermissiveHeaderSection::default,
@@ -95,10 +95,6 @@ pub fn header_section(input: &str) -> IResult<&str, PermissiveHeaderSection> {
                     section.keywords.append(&mut kws);
                 }
 
-                // 3.6.6.  Resent Fields
-
-                // 3.6.7.  Trace Fields
-
                 // 3.6.8.  Optional Fields
                 HeaderField::Optional(name, body) => {
                     section.optional.insert(name, body);
@@ -138,18 +134,6 @@ enum HeaderField<'a> {
     Comments(String),
     Keywords(Vec<String>),
 
-    // 3.6.6.  Resent Fields
-    ResentDate,
-    ResentFrom,
-    ResentSender,
-    ResentTo,
-    ResentCc,
-    ResentBcc,
-    ResentMessageID,
-
-    // 3.6.7.  Trace Fields
-    Trace,
-
     // 3.6.8.  Optional Fields
     Optional(&'a str, String)
 }
@@ -174,7 +158,10 @@ fn header_field(input: &str) -> IResult<&str, HeaderField> {
     // Extract field body
     let (input, hfield) = match field_name  {
         // 3.6.1.  The Origination Date Field
-        "Date" => datetime(input)?,
+        "Date" => {
+            let (input, body) = datetime(input)?;
+            Ok((input, HeaderField::Date(body)))
+        }
 
         // 3.6.2.  Originator Fields
         "From" => {
@@ -233,6 +220,28 @@ fn header_field(input: &str) -> IResult<&str, HeaderField> {
         }
 
         // 3.6.6.  Resent Fields
+        "Resent-Date" => {
+            let (input, body) = datetime(input)?;
+            Ok((input, HeaderField::ResentDate(body)))
+        }
+        "Resent-From" => {
+            unimplemented!();
+        }
+        "Resent-Sender" => {
+            unimplemented!();
+        }
+        "Resent-To" => {
+            unimplemented!();
+        }
+        "Resent-Cc" => {
+            unimplemented!();
+        }
+        "Resent-Bcc" => {
+            unimplemented!();
+        }
+        "Resent-Message-ID" => {
+            unimplemented!();
+        }
 
         // 3.6.7.  Trace Fields
 
@@ -248,15 +257,14 @@ fn header_field(input: &str) -> IResult<&str, HeaderField> {
     return Ok((input, hfield));
 }
 
-fn datetime(input: &str) -> IResult<&str, HeaderField> {
+fn datetime(input: &str) -> IResult<&str, HeaderDate> {
     // @FIXME want to extract datetime our way in the future
     // to better handle obsolete/bad cases instead of returning raw text.
     let (input, raw_date) = unstructured(input)?;
-    let date = match DateTime::parse_from_rfc2822(&raw_date) {
+    match DateTime::parse_from_rfc2822(&raw_date) {
         Ok(chronodt) => HeaderDate::Parsed(chronodt),
         Err(e) => HeaderDate::Unknown(raw_date, e),
-    };
-    Ok((input, HeaderField::Date(date)))
+    }
 }
 
 #[cfg(test)]

src/header.rs

@@ -0,0 +1,16 @@
+use nom::{
+    IResult,
+    multi::many0,
+}
+
+use crate::{common_fields, trace, whitespace};
+
+pub fn section(input: &str) -> IResult(&str, HeaderSection) {
+    let (input, traces) = many0(trace::section)(input)?;
+    let (input, common) = common_fields::section(input)?;
+    let (input, _) = whitespace::perm_crlf(input)?;
+
+    Ok((input, HeaderSection { traces, common }))
+}
+
+

src/lib.rs

@@ -1,4 +1,4 @@
-pub mod headers;
+// Model
 pub mod model;
 
 // Generic
@@ -11,3 +11,12 @@ mod misc_token;
 mod mailbox;
 mod address;
 mod identification;
+
+// Header blocks
+pub mod common_fields;
+pub mod trace;
+
+// Global mail
+pub mod header;
+
+

src/model.rs

@@ -63,6 +63,27 @@ pub struct MessageId<'a> {
     pub right: &'a str,
 }
 
+#[derive(Debug, PartialEq)]
+pub struct Trace {
+    // 3.6.7 Traces
+    pub received: Vec<String>,
+    pub return_path: Option<String>,
+
+    // 3.6.6.  Resent Fields
+    pub resent_date: HeaderDate,
+    pub resent_from: Vec<MailboxRef>,
+    pub resent_sender: Option<MailboxRef>,
+    pub resent_to: Vec<AddressRef>,
+    pub resent_cc: Vec<AddressRef>,
+    pub resent_bcc: Vec<AddressRef>,
+    pub resent_msg_id: Option<MessageId<'a>>,
+
+    // 3.6.8.  Optional Fields
+    pub optional: HashMap<&'a str, String>,
+    //pub failed: HashMap<&'a str, String>,
+    //pub garbage: &'a str,
+}
+
 /// Permissive Header Section
 ///
 /// This is a structure intended for parsing/decoding,
@@ -70,7 +91,7 @@ pub struct MessageId<'a> {
 /// as invalid according to RFC5322 but for which we can
 /// still extract some data.
 #[derive(Debug, Default)]
-pub struct PermissiveHeaderSection<'a> {
+pub struct CommonFields<'a> {
     // 3.6.1.  The Origination Date Field
     pub date: HeaderDate,
 
@@ -94,14 +115,18 @@ pub struct PermissiveHeaderSection<'a> {
     pub comments: Vec<String>,
     pub keywords: Vec<String>,
 
-    // 3.6.6.  Resent Fields
-
-    // 3.6.7.  Trace Fields
-
     // 3.6.8.  Optional Fields
-
-    // Rest
     pub optional: HashMap<&'a str, String>,
+    //pub failed: HashMap<&'a str, String>,
+    //pub garbage: &'a str,
+}
+
+pub struct HeaderSection<'a> {
+    // 3.6.7 Traces
+    pub traces: Vec<Trace>,
+
+    // 3.6.x
+    pub common: CommonFields,
 }
 
 enum InvalidEmailErr {

src/parse.rs

@@ -1,4 +1,4 @@
-use imf_codec::headers;
+use imf_codec::common_headers;
 
 fn main() {
     let header = r#"Date: Fri, 21 Nov 1997 10:01:10 -0600
@@ -21,5 +21,5 @@ References: <1234@local.machine.example>
 This is a reply to your hello.
 "#;
 
-    println!("{:?}", headers::header_section(header));
+    println!("{:?}", common_headers::section(header));
 }

src/trace.rs

@@ -0,0 +1,70 @@
+use nom::{
+    IResult,
+    
+}
+use crate::model;
+
+enum RestField<'a> {
+    // 3.6.6.  Resent Fields
+    ResentDate(HeaderDate),
+    ResentFrom(Vec<MailboxRef>),
+    ResentSender(MailboxRef),
+    ResentTo(Vec<AddressRef>),
+    ResentCc(Vec<AddressRef>),
+    ResentBcc(Vec<AddressRef>),
+    ResentMessageID(model::MessageId<'a>),
+
+    // 3.6.8. Optional fields
+    Optional(&'a str, String),
+}
+
+enum PreludeField<'a> {
+    // 3.6.7.  Trace Fields
+    ReturnPath(String),
+    Received(Vec<String>),
+}
+
+/// Section
+///
+/// Rewritten section for more compatibility
+///
+/// ```abnf
+///*(trace
+///   *(optional-field /
+///     resent-date /
+///     resent-from /
+///     resent-sender /
+///     resent-to /
+///     resent-cc /
+///     resent-bcc /
+///     resent-msg-id))
+/// ```
+pub fn section(input: &str) -> IResult<&str, model::Trace> {
+    let (input, mut prelude_trace) = prelude(input)?;
+    let (input, full_trace) = fold_many0(
+        rest_field,
+        prelude_trace,
+        |mut trace, field| {
+            match field {
+                
+            }
+        }
+
+}
+
+/// Trace prelude
+///
+/// ```abnf
+/// trace           =   [return]
+///                     1*received
+/// return          =   "Return-Path:" path CRLF
+/// path            =   angle-addr / ([CFWS] "<" [CFWS] ">" [CFWS])
+/// received        =   "Received:" *received-token ";" date-time CRLF
+/// received-token  =   word / angle-addr / addr-spec / domain
+/// ```
+fn prelude(input: &str) -> IResult<&str, model::Trace> {
+}
+
+fn rest_field(input: &str) -> IResult<&str, RestField> {
+    // Ensure this is not a new prelude
+}