feat: add message parser api to jsonrpc and cffi

api: cffi add `dc_parse_message_text_to_ast_json` and `dc_msg_get_parsed_text_as_json

api: jsonrpc: add `get_parsed_message_text_ast_json` and `parse_text_to_ast_json`

deltachat-ffi/deltachat.h

@@ -3993,6 +3993,36 @@ int64_t          dc_msg_get_sort_timestamp     (const dc_msg_t* msg);
 char*           dc_msg_get_text               (const dc_msg_t* msg);
 
 
+#define         MESSAGE_PARSER_MODE_ONLY_TEXT        0x00
+#define         MESSAGE_PARSER_MODE_DESKTOP_SET      0x01
+#define         MESSAGE_PARSER_MODE_MARKDOWN         0x02
+
+/**
+ * Parse text with the message parser.
+ *
+ * @memberof dc_context_t
+ * @param input The text to parse.
+ * @param mode Sets the parsing mode, you can choose between MESSAGE_PARSER_MODE_ONLY_TEXT, MESSAGE_PARSER_MODE_DESKTOP_SET and MESSAGE_PARSER_MODE_MARKDOWN.
+ *        Look at https://github.com/deltachat/message-parser/blob/master/spec.md#modes-of-the-parser to learn more about the parser modes.
+ * @return Abstract Syntax Tree for your message that you can use to display parts of a message specially like links.
+ *         This ast is returned in json (look at the sourcecode for reference for the format: https://github.com/deltachat/message-parser/blob/master/src/parser/mod.rs#L11)
+ */
+char*           dc_parse_message_text_to_ast_json (const char* input, int mode);
+
+
+/**
+ * Parse the text of a message with the message parser.
+ *
+ * @memberof dc_msg_t
+ * @param msg The message object.
+ * @param mode Sets the parsing mode, you can choose between MESSAGE_PARSER_MODE_ONLY_TEXT, MESSAGE_PARSER_MODE_DESKTOP_SET and MESSAGE_PARSER_MODE_MARKDOWN.
+ *        Look at https://github.com/deltachat/message-parser/blob/master/spec.md#modes-of-the-parser to learn more about the parser modes.
+ * @return Abstract Syntax Tree for your message that you can use to display parts of a message specially like links.
+ *         This ast is returned in json (look at the sourcecode for reference for the format: https://github.com/deltachat/message-parser/blob/master/src/parser/mod.rs#L11)
+ */
+char*           dc_msg_get_parsed_text_as_json (const dc_msg_t* msg, int mode);
+
+
 /**
  * Get the subject of the e-mail.
  * If there is no subject associated with the message, an empty string is returned.

deltachat-ffi/src/lib.rs

@@ -31,6 +31,7 @@ use deltachat::ephemeral::Timer as EphemeralTimer;
 use deltachat::imex::BackupProvider;
 use deltachat::key::{DcKey, DcSecretKey};
 use deltachat::message::MsgId;
+use deltachat::message_parser::parser;
 use deltachat::net::read_url_blob;
 use deltachat::qr_code_generator::{generate_backup_qr, get_securejoin_qr_svg};
 use deltachat::reaction::{get_msg_reactions, send_reaction, Reactions};
@@ -3356,6 +3357,58 @@ pub unsafe extern "C" fn dc_msg_get_text(msg: *mut dc_msg_t) -> *mut libc::c_cha
     ffi_msg.message.get_text().strdup()
 }
 
+#[no_mangle]
+pub unsafe extern "C" fn dc_parse_message_text_to_ast_json(
+    text: *const libc::c_char,
+    mode: u32,
+) -> *mut libc::c_char {
+    if text.is_null() {
+        eprintln!("ignoring careless call to dc_parse_message_text_to_ast_json()");
+    }
+    let text = to_string_lossy(text);
+    let result = match mode {
+        0 /* OnlyText */ => parser::parse_only_text(&text),
+        1 /* DesktopSet */ => parser::parse_desktop_set(&text),
+        2 /* Markdown */ => parser::parse_markdown_text(&text),
+        _ => {
+            eprintln!("ignoring careless call to dc_parse_message_text_to_ast_json() - invalid mode");
+            return "".strdup();
+        }
+    };
+    if let Ok(result) = serde_json::to_string(&result) {
+        result.strdup()
+    } else {
+        "".strdup()
+    }
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn dc_msg_get_parsed_text_as_json(
+    msg: *mut dc_msg_t,
+    mode: u32,
+) -> *mut libc::c_char {
+    if msg.is_null() {
+        eprintln!("ignoring careless call to dc_msg_get_parsed_text_as_json()");
+        return "".strdup();
+    }
+    let ffi_msg = &*msg;
+    let text = ffi_msg.message.get_text();
+    let result = match mode {
+        0 /* OnlyText */ => parser::parse_only_text(&text),
+        1 /* DesktopSet */ => parser::parse_desktop_set(&text),
+        2 /* Markdown */ => parser::parse_markdown_text(&text),
+        _ => {
+            eprintln!("ignoring careless call to dc_msg_get_parsed_text_as_json() - invalid mode");
+            return "".strdup();
+        }
+    };
+    if let Ok(result) = serde_json::to_string(&result) {
+        result.strdup()
+    } else {
+        "".strdup()
+    }
+}
+
 #[no_mangle]
 pub unsafe extern "C" fn dc_msg_get_subject(msg: *mut dc_msg_t) -> *mut libc::c_char {
     if msg.is_null() {