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Merge branch 'jb49173_user_model' into 'master'
Add model to access user info See merge request mer-core/nemo-qml-plugin-systemsettings!134
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| /* | ||
| * Copyright (C) 2020 Open Mobile Platform LLC. | ||
| * | ||
| * You may use this file under the terms of the BSD license as follows: | ||
| * | ||
| * "Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions are | ||
| * met: | ||
| * * Redistributions of source code must retain the above copyright | ||
| * notice, this list of conditions and the following disclaimer. | ||
| * * Redistributions in binary form must reproduce the above copyright | ||
| * notice, this list of conditions and the following disclaimer in | ||
| * the documentation and/or other materials provided with the | ||
| * distribution. | ||
| * * Neither the name of Nemo Mobile nor the names of its contributors | ||
| * may be used to endorse or promote products derived from this | ||
| * software without specific prior written permission. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." | ||
| */ | ||
|
|
||
| #include "userinfo.h" | ||
| #include "userinfo_p.h" | ||
|
|
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| #include <pwd.h> | ||
| #include <sys/types.h> | ||
| #include <systemd/sd-login.h> | ||
|
|
||
| namespace { | ||
|
|
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| enum SpecialIds : uid_t { | ||
| DeviceOwnerId = 100000, | ||
| InvalidId = (uid_t)(-1), | ||
| }; | ||
|
|
||
| QString nameFromGecos(const char *gecos) | ||
| { | ||
| // typically GECOS has (sub)fields separated by "," | ||
| // and the first one of them is full name of the user. | ||
| // Sometimes it contains just the full name or it might be empty, | ||
| // thus do this on best effort basis. | ||
| auto name = QString::fromUtf8(gecos); | ||
| int i = name.indexOf(QStringLiteral(",")); | ||
| if (i != -1) | ||
| name.truncate(i); | ||
| return name; | ||
| } | ||
|
|
||
| } | ||
|
|
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| UserInfoPrivate::UserInfoPrivate() | ||
| : m_uid(InvalidId) | ||
| , m_loggedIn(false) | ||
| { | ||
| } | ||
|
|
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| UserInfoPrivate::UserInfoPrivate(struct passwd *pwd) | ||
| : m_uid(pwd->pw_uid) | ||
| , m_username(QString::fromUtf8(pwd->pw_name)) | ||
| , m_name(nameFromGecos(pwd->pw_gecos)) | ||
| // require_active == false -> both online and active are logged in. | ||
| // Specifying seat should make sure that remote users are not | ||
| // counted as they don't have seats. | ||
| , m_loggedIn(sd_uid_is_on_seat(m_uid, 0, "seat0") > 0) | ||
| { | ||
| } | ||
|
|
||
| UserInfoPrivate::~UserInfoPrivate() | ||
| { | ||
| } | ||
|
|
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| QWeakPointer<UserInfoPrivate> UserInfoPrivate::s_current; | ||
|
|
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| void UserInfoPrivate::set(struct passwd *pwd) | ||
| { | ||
| QString username; | ||
| QString name; | ||
|
|
||
| if (pwd) { | ||
| Q_ASSERT(pwd->pw_uid == m_uid); | ||
| username = QString::fromUtf8(pwd->pw_name); | ||
| name = nameFromGecos(pwd->pw_gecos); | ||
| } else if (m_uid != InvalidId) { | ||
| m_uid = InvalidId; | ||
| emit uidChanged(); | ||
| } | ||
|
|
||
| if (m_username != username) { | ||
| m_username = username; | ||
| emit usernameChanged(); | ||
| } | ||
|
|
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| if (m_name != name) { | ||
| m_name = name; | ||
| emit nameChanged(); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Construct UserInfo for the current user | ||
| * | ||
| * If it has been constructed before, this reuses the old data. | ||
| */ | ||
| UserInfo::UserInfo() | ||
| { | ||
| if (!UserInfoPrivate::s_current.isNull()) { | ||
| d_ptr = QSharedPointer<UserInfoPrivate>(UserInfoPrivate::s_current); | ||
| } | ||
| if (d_ptr.isNull()) { | ||
| uid_t uid = InvalidId; | ||
| struct passwd *pwd; | ||
| if (sd_seat_get_active("seat0", NULL, &uid) < 0 || uid == InvalidId || !(pwd = getpwuid(uid))) { | ||
| d_ptr = QSharedPointer<UserInfoPrivate>(new UserInfoPrivate); | ||
| } else { | ||
| d_ptr = QSharedPointer<UserInfoPrivate>(new UserInfoPrivate(pwd)); | ||
| } | ||
| // pwd must not be free'd | ||
| } | ||
| if (current()) | ||
| UserInfoPrivate::s_current = d_ptr; | ||
| connectSignals(); | ||
| } | ||
|
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||
| UserInfo::UserInfo(const UserInfo &other) | ||
| : QObject(other.parent()) | ||
| , d_ptr(other.d_ptr) | ||
| { | ||
| connectSignals(); | ||
| } | ||
|
|
||
| /** | ||
| * Construct UserInfo by uid | ||
| */ | ||
| UserInfo::UserInfo(int uid) | ||
| { | ||
| struct passwd *pwd = (uid_t)uid != InvalidId ? getpwuid((uid_t)uid) : nullptr; | ||
| if (pwd) { | ||
| d_ptr = QSharedPointer<UserInfoPrivate>(new UserInfoPrivate(pwd)); | ||
| } else { | ||
| d_ptr = QSharedPointer<UserInfoPrivate>(new UserInfoPrivate); | ||
| } | ||
| // pwd must not be free'd | ||
| if (current()) | ||
| UserInfoPrivate::s_current = d_ptr; | ||
| connectSignals(); | ||
| } | ||
|
|
||
| /** | ||
| * Construct UserInfo by username | ||
| */ | ||
| UserInfo::UserInfo(QString username) | ||
| { | ||
| struct passwd *pwd = getpwnam(username.toUtf8().constData()); | ||
| if (pwd) { | ||
| d_ptr = QSharedPointer<UserInfoPrivate>(new UserInfoPrivate(pwd)); | ||
| } else { | ||
| d_ptr = QSharedPointer<UserInfoPrivate>(new UserInfoPrivate); | ||
| } | ||
| // pwd must not be free'd | ||
| if (current()) | ||
| UserInfoPrivate::s_current = d_ptr; | ||
| connectSignals(); | ||
| } | ||
|
|
||
| /** | ||
| * Construct a placeholder user that doesn't exist | ||
| * | ||
| * Placeholder users are always invalid. | ||
| */ | ||
| UserInfo UserInfo::placeholder() | ||
| { | ||
| return UserInfo(InvalidId); | ||
| } | ||
|
|
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| UserInfo::~UserInfo() | ||
| { | ||
| } | ||
|
|
||
| /** | ||
| * Returns true if user exists | ||
| */ | ||
| bool UserInfo::isValid() const | ||
| { | ||
| Q_D(const UserInfo); | ||
| return d->m_uid != InvalidId; | ||
| } | ||
|
|
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| QString UserInfo::username() const | ||
| { | ||
| Q_D(const UserInfo); | ||
| return d->m_username; | ||
| } | ||
|
|
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| void UserInfo::setUsername(QString username) | ||
| { | ||
| Q_D(UserInfo); | ||
| if (d->m_username != username) { | ||
| d->m_username = username; | ||
| emit d_ptr->usernameChanged(); | ||
| } | ||
| } | ||
|
|
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| QString UserInfo::name() const | ||
| { | ||
| Q_D(const UserInfo); | ||
| return d->m_name; | ||
| } | ||
|
|
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| void UserInfo::setName(QString name) | ||
| { | ||
| Q_D(UserInfo); | ||
| if (d->m_name != name) { | ||
| d->m_name = name; | ||
| emit d_ptr->nameChanged(); | ||
| } | ||
| } | ||
|
|
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| UserInfo::UserType UserInfo::type() const | ||
| { | ||
| Q_D(const UserInfo); | ||
| // Device lock considers user with id 100000 as device owner. | ||
| // Some other places consider the user belonging to sailfish-system | ||
| // as device owner. We have to pick one here. | ||
| return (d->m_uid == DeviceOwnerId) ? DeviceOwner : User; | ||
| } | ||
|
|
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| int UserInfo::uid() const | ||
| { | ||
| Q_D(const UserInfo); | ||
| return (int)d->m_uid; | ||
| } | ||
|
|
||
| /** | ||
| * Returs true if user is logged in on seat0 and is the active user, i.e. the current user | ||
| */ | ||
| bool UserInfo::current() const | ||
| { | ||
| Q_D(const UserInfo); | ||
| // Any logged in user (on seat0) must be the current one | ||
| // since we don't have multisession. | ||
| return d->m_loggedIn; | ||
| } | ||
|
|
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| void UserInfo::reset() | ||
| { | ||
| Q_D(UserInfo); | ||
| d->set((isValid()) ? getpwuid(d->m_uid) : nullptr); | ||
| } | ||
|
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| UserInfo &UserInfo::operator=(const UserInfo &other) | ||
| { | ||
| if (this == &other) | ||
| return *this; | ||
|
|
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| d_ptr = other.d_ptr; | ||
|
|
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| return *this; | ||
| } | ||
|
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| bool UserInfo::operator==(const UserInfo &other) const | ||
| { | ||
| if (!isValid()) | ||
| return false; | ||
| return d_ptr == other.d_ptr; | ||
| } | ||
|
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| bool UserInfo::operator!=(const UserInfo &other) const | ||
| { | ||
| if (!isValid()) | ||
| return true; | ||
| return d_ptr != other.d_ptr; | ||
| } | ||
|
|
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| void UserInfo::connectSignals() | ||
| { | ||
| connect(d_ptr.data(), &UserInfoPrivate::usernameChanged, this, &UserInfo::usernameChanged); | ||
| connect(d_ptr.data(), &UserInfoPrivate::nameChanged, this, &UserInfo::nameChanged); | ||
| connect(d_ptr.data(), &UserInfoPrivate::uidChanged, this, &UserInfo::uidChanged); | ||
| } |
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