url = "/ctdl/r/" + escapeHTMLURI(current_room) + "/dummy_name_for_new_message";
boundary = randomString(20);
-
- // This converts the message to base64, then splits it into 76-character chunks
- encoded_msg_lines =
- btoa("<html><body>" + document.getElementById("ctdl-editor-body").innerHTML + "</body></html>")
- .match(/.{1,76}/g);
-
body_text =
"--" + boundary + "\r\n"
+ "Content-type: text/html\r\n"
- + "Content-transfer-encoding: base64\r\n"
- + "\r\n";
- for (var i=0; i<encoded_msg_lines.length; ++i) {
- body_text += encoded_msg_lines[i] + "\r\n";
- }
- body_text += "\r\n"
+ + "Content-transfer-encoding: quoted-printable\r\n"
+ + "\r\n"
+ + quoted_printable_encode(
+ "<html><body>" + document.getElementById("ctdl-editor-body").innerHTML + "</body></html>"
+ ) + "\r\n"
+ "--" + boundary + "--\r\n"
;
};
request.send(body_text);
}
+
+
+// Function to encode data in quoted-printable format
+// discuss at: https://locutus.io/php/quoted_printable_encode/
+// original by: Theriault (https://github.com/Theriault)
+// improved by: Brett Zamir (https://brett-zamir.me)
+// improved by: Theriault (https://github.com/Theriault)
+function quoted_printable_encode (str) { // eslint-disable-line camelcase
+ const hexChars = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F']
+ const RFC2045Encode1IN = / \r\n|\r\n|[^!-<>-~ ]/gm
+ const RFC2045Encode1OUT = function (sMatch) {
+ // Encode space before CRLF sequence to prevent spaces from being stripped
+ // Keep hard line breaks intact; CRLF sequences
+ if (sMatch.length > 1) {
+ return sMatch.replace(' ', '=20')
+ }
+ // Encode matching character
+ const chr = sMatch.charCodeAt(0)
+ return '=' + hexChars[((chr >>> 4) & 15)] + hexChars[(chr & 15)]
+ }
+ // Split lines to 75 characters; the reason it's 75 and not 76 is because softline breaks are
+ // preceeded by an equal sign; which would be the 76th character. However, if the last line/string
+ // was exactly 76 characters, then a softline would not be needed. PHP currently softbreaks
+ // anyway; so this function replicates PHP.
+ const RFC2045Encode2IN = /.{1,72}(?!\r\n)[^=]{0,3}/g
+ const RFC2045Encode2OUT = function (sMatch) {
+ if (sMatch.substr(sMatch.length - 2) === '\r\n') {
+ return sMatch
+ }
+ return sMatch + '=\r\n'
+ }
+ str = str
+ .replace(RFC2045Encode1IN, RFC2045Encode1OUT)
+ .replace(RFC2045Encode2IN, RFC2045Encode2OUT)
+ // Strip last softline break
+ return str.substr(0, str.length - 3)
+}
projects / citadel.git / commitdiff