phpSANE is a web-based frontend for SANE written in HTML/PHP so you can scan with your web-browser. It also supports OCR.
It's forked from SourceForge phpSane

Installing phpSANE on FreeBSD

Prerequisites

pkg_add -r sane-backends
pkg_add -r sane-frontends
pkg_add -r git*

Testing

The following programs must succeed, because phpSANE is based on them.

sane-find-scanner -q
scanimage -L
su -m www -c 'scanimage --test'

Obtain the source code

Use git

cd /var/www
git clone https://github.com/gawindx/phpSane.git

Or download the latest version

mkdir /var/www/phpsane
cd /var/www
fetch https://github.com/gawindx/phpSane/archive/master.zip unzip master.zip

Set permissions

chown -R root:www phpsane/tmp phpsane/output
chmod 775 phpsane/tmp phpsane/output

Apache configuration

<Location /phpsane>
DirectoryIndex index.php
Require group Admins Users Faktura
</Location>

For Fedora User (fc32)

On a fresh install, you need to install "netpbm-progs", "gocr", "ImageMagick" and "poppler-utils" :

dnf install gocr netpbm-progs poppler-utils ImageMagick

OPTIONAL:

SELinux

If SELinux is activated and Enforced, you need to apply this custom rule :

semanage fcontext -a -t httpd_sys_rw_content_t "/var/www/phpsane/scanners(/.*)?"
semanage fcontext -a -t httpd_sys_rw_content_t "/var/www/phpsane/tmp(/.*)?"
semanage fcontext -a -t httpd_sys_rw_content_t "/var/www/phpsane/output(/.*)?"
restorecon -R -v /var/www/phpsane

cat my-phpSane.te<<EOF
module my-phpSane 1.0;

require {

        type cupsd_t;
        type cupsd_etc_t;
        type cupsd_var_run_t;
        type httpd_t;
        type httpd_sys_script_t;
        type proc_net_t;
        type sysctl_dev_t;
        type sysfs_t;
        type printer_device_t;
        type udev_var_run_t;
        type usb_device_t;
        class chr_file { ioctl open read write };
        class dir { getattr open read search };
        class file { getattr open read };
        class netlink_kobject_uevent_socket { bind create getattr setopt };
        class sock_file read;
        class unix_stream_socket connectto;
}

#============= httpd_sys_script_t ==============

allow httpd_sys_script_t cupsd_etc_t:dir search;
allow httpd_sys_script_t cupsd_t:unix_stream_socket connectto;
allow httpd_sys_script_t cupsd_var_run_t:sock_file read;
allow httpd_sys_script_t proc_net_t:file read;
allow httpd_sys_script_t self:netlink_kobject_uevent_socket { bind create getattr setopt };
allow httpd_sys_script_t sysctl_dev_t:dir { getattr open read search };
allow httpd_sys_script_t sysfs_t:file { getattr open read };
allow httpd_sys_script_t udev_var_run_t:file { getattr open read };

#============= httpd_t ==============

allow httpd_t cupsd_etc_t:file { getattr open read };
allow httpd_t cupsd_var_run_t:sock_file read;
allow httpd_t printer_device_t:chr_file { open read };
allow httpd_t sysctl_dev_t:dir { getattr open read search };
allow httpd_t usb_device_t:chr_file { ioctl open read write };
EOF
checkmodule -M -m -o my-phpSane.mod my-phpSane.te
semodule_package -o my-phpSane.pp -m my-phpSane.mod
semodule -X 300 -i my-phpSane.pp

setsebool -P httpd_dbus_avahi 1
setsebool -P httpd_execmem 1

Recalcitrant SeLinux

I have personally come across a particular case where it was not possible to get phpSane to work properly with SeLinux enabled (Enforcing). The only solution that worked was to apply a specific context to scanimage so that it stops crashing during execution (crashed in __pthread_mutex_lock ()).

semanage fcontext -m -t httpd_sys_script_exec_t "/usr/bin/scanimage"
restorecon -R -v /usr/bin/scanimage

This change of context allowed scanimage to accept being executed by httpd whether SeLinux was in Permissive or Enforcing mode (this problem only occurred when SeLinux was in Enforcing mode).

devfs.rules for jails

Of course you'll ned to adjust the device name to match the USB port your scanner uses.

pw groupadd -n scan
pw groupmod scan -m www
pw groupadd -n printscan
pw groupmod printscan -m www
service apache22 restart

/etc/devfs.rules

[devfsrules_jail_unhide_usb_printer_and_scanner=30]
add include $devfsrules_hide_all
add include $devfsrules_unhide_basic
add include $devfsrules_unhide_login
add path 'ulpt*' mode 0660 group printscan unhide
add path 'unlpt*' mode 0660 group printscan unhide
add path 'ugen2.8' mode 0660 group printscan unhide # Scanner (ugen2.8 is a symlink to usb/2.8.0)
add path usb unhide
add path usbctl unhide
add path 'usb/2.8.0' mode 0660 group printscan unhide

[devfsrules_jail_unhide_usb_scanner_only=30]
add include $devfsrules_hide_all
add include $devfsrules_unhide_basic
add include $devfsrules_unhide_login
add path 'ugen2.8' mode 0660 group scan unhide # Scanner
add path usb unhide
add path usbctl unhide
add path 'usb/2.8.0' mode 0660 group scan unhide