summaryrefslogtreecommitdiff
path: root/src/jwebmail/webmail.py
blob: 26dfe20d36b1375b1fa1f3e727a027a0b6674341 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
from urllib.parse import urlparse

from flask import (
    abort,
    current_app,
    flash,
    g,
    redirect,
    render_template,
    request,
    url_for,
)
from flask_babel import gettext, lazy_gettext
from flask_login import current_user, login_user, logout_user
from flask_paginate import Pagination, get_page_parameter, get_per_page_parameter
from flask_wtf import FlaskForm
from wtforms import (
    EmailField,
    MultipleFileField,
    PasswordField,
    StringField,
    SubmitField,
    TextAreaField,
    validators,
)

from .model.read_mails import QMAuthError
from .read_mails import JWebmailUser, add_user, get_read_mails_logged_in
from .read_mails import login as rm_login
from .render_mail import to_mime_type


class LoginForm(FlaskForm):
    username = StringField(lazy_gettext("Username"), [validators.Email()])
    password = PasswordField(
        lazy_gettext("Password"), [validators.Length(min=5, max=35)]
    )


class WriteForm(FlaskForm):
    send_to = EmailField("Send to", [validators.InputRequired()])
    subject = StringField("Subject", [validators.InputRequired()])
    cc = StringField("CC")
    bcc = StringField("BCC")
    answer_to = EmailField("Answer to")
    content = TextAreaField("Content")
    attachments = MultipleFileField("Attachments")
    submit = SubmitField("Send")


def login():
    if current_user.is_authenticated:
        return redirect(url_for("displayheaders"), 307)

    form = LoginForm()
    warn = ""
    rc = 200

    if form.validate_on_submit():
        if rm_login(form.username.data, form.password.data):
            user = JWebmailUser(form.username.data, form.password.data)
            add_user(user)
            login_user(user)

            nxt = request.args.get("next")

            if urlparse(nxt).netloc:
                abort(401)
            g.setdefault("lang_code", current_app.config["BABEL_DEFAULT_LOCALE"])
            return redirect(nxt or url_for("displayheaders"), 303)
        else:
            warn = gettext("login failed!")
    elif request.method == "POST":
        rc = 401

    return render_template("login.html", login_form=form, warn=warn), rc


def logout():
    logout_user()
    return redirect(url_for("login"), 303)


def about():
    view_model = {
        "scriptadmin": current_app.config["JWEBMAIL"]["ADMIN_MAIL"],
        "http_host": request.host,
        "request_uri": request.full_path,
        "remote_addr": request.remote_addr,
        "languages": current_app.extensions["babel"].instance.list_translations(),
    }
    return render_template("about.html", **view_model)


def displayheaders(folder=""):
    folders = get_read_mails_logged_in().folders()

    if folder and folder not in folders:
        return render_template("error", error="no_folder", links=folders), 404

    sort = request.args.get("sort", "!date")
    search = request.args.get("search")

    s = sort[1:] if sort[0] == "!" else sort
    if s not in ["date", "size", "sender"]:
        abort(400)

    count = get_read_mails_logged_in().count(folder)

    page = request.args.get(get_page_parameter(), type=int, default=1)
    per_page = request.args.get(get_per_page_parameter(), type=int, default=10)

    pgn = Pagination(
        page=page,
        per_page=per_page,
        total=count["total_mails"],
        record_name="mails",
        css_framework="bulma",
        display_msg=gettext(
            "displaying <b>{start} - {end}</b> of <b>{total}</b> {record_name}"
        ),
        inner_window=1,
        outer_window=0,
    )

    if search:
        headers = get_read_mails_logged_in().search(search, folder)
    else:
        headers = get_read_mails_logged_in().read_headers_for(
            folder=folder,
            start=(pgn.page - 1) * pgn.per_page,
            end=(pgn.page - 1) * pgn.per_page + pgn.per_page,
            sort=sort,
        )

    vals = {
        "folder": folder,
        "pgn": pgn,
        "msgs": headers,
        "mail_folders": folders,
        "total_size": count["byte_size"],
        "total_new_mails": count["unread_mails"],
    }
    return render_template("displayheaders.html", **vals)


def readmail(msgid, folder=""):
    try:
        mail = get_read_mails_logged_in().show(folder, msgid)
    except QMAuthError:
        return render_template("not_found.html"), 404

    return render_template("readmail.html", msg=mail, folder=folder)


def writemail():
    return render_template("writemail.html", form=WriteForm())


def move(folder):
    folders = get_read_mails_logged_in().folders()

    mm = request.args.getlist("mail")
    to_folder = request.args["folder"]

    if folder not in folders or to_folder not in folders:
        raise ValueError("folder not valid")

    for m in mm:
        get_read_mails_logged_in().move(m, folder, to_folder)

    flash(gettext("succ_move"))
    return redirect(url_for("displayheaders"), 303)


def rawmail(msgid, folder=""):
    path = request.args.get("path", "")

    content = get_read_mails_logged_in().raw(folder, msgid, path)

    headers = []

    cd = content["head"].get("content_disposition")
    if cd and cd.lower() == "attachment":
        headers.append(
            (
                "Content-Disposition",
                f"attachment; filename={content['head']['filename']}",
            )
        )
    ct = to_mime_type(content["head"])
    if ct.startswith("text/"):
        ct += "; charset=UTF-8"
    headers.append(("Content-Type", ct))

    return content["body"], headers


def sendmail():
    form = WriteForm()

    if not form.validate():
        abort(400)

    mail = {
        "to": form.to.data,
        "message": form.content.data,
        "subject": form.subject.data,
        "cc": form.cc.data,
        "bcc": form.bcc.data,
        "reply": form.answer_to.data,
        "attach": form.attachments.data,
        "from": "",
    }

    error = send_mail(mail)

    if error:
        return render_template("writemail.html", warning=gettext("error_send")), 400

    flash(gettext("succ_send"))
    return redirect(url_for("displayheaders"), 303)