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falk-werner_webfused/README.md
2020-03-20 10:28:36 +01:00

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[![Build Status](https://travis-ci.org/falk-werner/webfused.svg?branch=master)](https://travis-ci.org/falk-werner/webfused)
[![codecov](https://codecov.io/gh/falk-werner/webfused/branch/master/graph/badge.svg)](https://codecov.io/gh/falk-werner/webfused)
# webfused
Reference implementation of webfuse daemon.
## Build and run
To install dependecies, see below.
cd webfused
mkdir build
cd build
cmake ..
make
./webfused -f webfused.conf
## Config file
```
version = { major = 1, minor = 0 }
server:
{
vhost_name = "localhost"
port = 8080
tls:
{
certificate = "/etc/webfused/cert.pem"
key = "/etc/webfused/key.pem"
}
document_root = "/var/www"
}
authentication:
(
{
provider = "pam"
settings:
{
service_name = "webfused"
}
}
)
filesystems:
(
{name = "test", mount_point = "/tmp/webfused" }
)
log:
{
provider: "syslog"
level: "warning"
settings:
{
ident = "webfused"
facility = "daemon"
log_pid = true
}
}
user:
{
name = "webfused"
group = "webfused"
}
```
### Version
The version sections specifies the schema version of the config file.
Currently, there is only one schema version defined: 1.0
### Server
| Setting | Type | Default value | Description |
| ------------- | ------ | ------------- | ------------------------ |
| vhostname | string | localhost | Name of the virtual host |
| port | int | 8080 | Port number of server |
| document_root | string | *-empty-* | Path of HTTP files |
| tls | object | *-empty-* | see below |
When *document_root* is omitted, no HTTP files are served.
#### TLS
| Setting | Type | Default value | Description |
| ----------- | ------ | ------------- | ------------------------------------------- |
| certificate | string | *-empty-* | Path to servers own certificate (.pem file) |
| key | string | *-empty-* | Path to servers own private key (.pem file) |
TLS is only activated, when both, *certificate* and *key* are specified.
Otherwise, plain websockes without TLS are used.
### Authentication
| Setting | Type | Default value | Description |
| -------- | ------ | ------------- | ----------------------------------------------- |
| provider | string | *-required-* | Name of the authentication provider (see below) |
| settings | object | *-empty-* | Provider specific settings (see below)
Currently, the following providers are supported:
- *file*: file based authentication
- *pam*: authentication based on Linux PAM
### File Authenticaton Provider
Allows authentication against a file containing username and password.
| Setting | Type | Default value | Description |
| -------- | ------ | ------------- | ------------------------------- |
| file | string | *-required-* | Path to the authentication file |
### PAM Authenticaton Provider
Allows authentication using Linux PAM.
| Setting | Type | Default value | Description |
| ------------ | ------ | ------------- | ---------------------- |
| service_name | string | webfused | PAM service identifier |
### Filesystems
Contains a list of file systems that can be provided by webfuse providers.
| Setting | Type | Default value | Description |
| ----------- | ------ | ------------- | ---------------------------------- |
| name | string | *-required-* | Name of the filesystem |
| mount_point | string | *-required-* | Local path to mount the filesystem |
### Log
| Setting | Type | Default value | Description |
| ----------- | ------ | ------------- | -------------------------------------- |
| provider | string | *-required-* | Name of log provider (see below) |
| level | string | *-required-* | Log level (see below) |
| settings | object | *-empty-* | Provider specific settings (see below) |
The following log levels are supported:
- *none*: diabled logging
- *fatal*: log only fatal errors
- *error*: log all kind of errors
- *warn*: log errors and warnings
- *info*: log info messages, warnings and errors
- *debug*: log debug and info messages as well as warnings and errors
- *all*: log all kind of messages
Currently, the following providers are available:
- *stderr*: logs to console error output
- *syslog*: logs to syslog
#### Stderr Logger
This logger does not provide any settings.
#### Syslog Logger
| Setting | Type | Default value | Description |
| ----------- | ------ | ------------- | ------------------------------------------ |
| ident | string | webfused | Syslog ident (see syslog documentation) |
| facility | string | daemon | Syslog facility (see syslog documentation) |
| log_pid | bool | false | Add process ID to log messages |
### User
| Setting | Type | Default value | Description |
| ------- | ------ | ------------- | ------------------------------- |
| name | string | *-required-* | Name of the user to switch to. |
| group | string | *-required-* | Name of the group to switch to. |
Webfuse daemon will not run as root. If started as root, webfuse daemon tries to
switch to *user* and *group* provided in config file.
*Note*: user and group are not switched, when webfuse daemon is not started as root.
## Dependencies
- [webfuse](https://github.com/falk-werner/webfuse)
- [libfuse](https://github.com/libfuse/libfuse/)
- [libwebsockets](https://libwebsockets.org/)
- [jansson](https://github.com/akheron/jansson)
- [openssl](https://www.openssl.org/)
- [libconfig](https://hyperrealm.github.io/libconfig/)
- [linux-pam](http://www.linux-pam.org/)
- [Google Test](https://github.com/google/googletest) *(Test only)*
### Installing dependencies
#### libfuse
To install libfuse, meson is needed. Please refer to [meson quick guide](https://mesonbuild.com/Quick-guide.html) for setup instructions.
wget https://github.com/libfuse/libfuse/archive/fuse-3.9.0.tar.gz -O fuse.tar.gz
tar -xf fuse.tar.gz
cd libfuse-fuse-3.9.0
mkdir .build
cd .build
meson ..
ninja
sudo ninja install
#### libwebsockets
wget https://github.com/warmcat/libwebsockets/archive/v3.2.0.tar.gz -O libwebsockets.tar.gz
tar -xf libwebsockets.tar.gz
cd libwebsockets-3.2.0
mkdir .build
cd .build
cmake ..
make
sudo make install
#### jansson
wget https://github.com/akheron/jansson/archive/v2.12.tar.gz -O jansson.tar.gz
tar -xf jansson.tar.gz
cd jansson-2.12
mkdir .build
cd .build
cmake ..
make
sudo make install
#### openssl
sudo apt update
sudo install openssl libssl-dev
#### webfuse
wget https://github.com/falk-werner/webfuse/archive/v0.2.0.tar.gz -O webfuse.tar.gz
tar -xf webfuse.tar.gz
cd webfuse-0.2.0
mkdir .build
cd .build
cmake -DWITHOUT_TESTS=ON ..
make
sudo make install
#### libconfig
sudo apt update
sudo apt install libconfig-dev
#### linux-pam
sudo apt update
sudo apt install libpam0g-dev
#### GoogleTest
Installation of GoogleTest is optional webfuse library, but required to compile tests.
wget -O gtest-1.10.0.tar.gz https://github.com/google/googletest/archive/release-1.10.0.tar.gz
tar -xf gtest-1.10.0.tar.gz
cd googletest-release-1.10.0
mkdir .build
cd .build
cmake ..
make
sudo make install