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# Conflicts:
#	README.md
#	core/constants.py
#	data/spot.py
#	templates/status.html
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@@ -33,499 +33,17 @@ see [https://spothole.app/apidocs](https://spothole.app/apidocs) for the API det
This is a Progressive Web App, so you can also "install" it to your Android or iOS device by accessing it in Chrome or
Safari respectively, and following the menu-driven process for installing PWAs.
You are more than welcome to use the data and the API that Spothole provides to power your own software. There are many
ways to do this; see below.
## Embedding Spothole in another website
You can embed Spothole's web interface in another website, e.g. for use as part of a ham radio custom dashboard.
URL parameters can be used to trigger an "embedded" mode which hides the headers, footers and settings. In this mode,
you provide configuration for the various filter and display options via additional URL parameters. Any settings that
the user has set for Spothole are ignored. This is so that the embedding site can select, for example, their choice of
dark mode or SIG filters, which will not impact how Spothole appears when the user accesses it directly. Effectively, it
becomes separate to their normal Spothole settings.
Setting `embedded` to true is important for the rest of the settings to be applied; otherwise, the user's defaults will
be used in preference to the URL params.
These are supplied with the URL to the page you want to embed, for example for an embedded version of the band map in
dark mode, use `https://spothole.app/bands?embedded=true&dark-mode=true`. For an embedded version of the main spots/home
page in the system light/dark mode, use `https://spothole.app/?embedded=true`. For dark mode showing 70cm TOTA spots
only, use `https://spothole.app/?embedded=true&dark-mode=true&sig=TOTA&band=70cm`. Providing no URL params causes the
page to be loaded in the normal way it would when accessed directly in the user's browser.
The supported parameters are as follows. Generally these match the equivalent parameters in the real Spothole API, where
a mapping exists.
| Name | Allowed Values | Default | Example | Description |
|------------------|-------------------------|---------|-------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `embedded` | `true`, `false` | `false` | `?embedded=true` | Enables embedded mode. |
| `color-scheme` | `light`, `dark`, `auto` | `auto` | `?color-scheme=dark` | Forces light or dark mode in preference to the operating system default. |
| `time-zone` | `UTC`, `local` | `UTC` | `?time-zone=local` | Sets times to be in UTC or local time. |
| `limit` | 10, 25, 50, 100 | 50 | `?limit=50` | Sets the number of spots that will be displayed on the main spots page |
| `limit` | 25, 50, 100, 200, 500 | 100 | `?limit=100` | Sets the number of alerts that will be displayed on the alerts page |
| `max_age` | 300, 600, 1800, 3600 | 1800 | `?max_age=1800` | Sets the maximum age of spots displayed on the map and bands pages, in seconds. |
| `band` | Comma-separated list | (all) | `?band=20m,40m` | Sets the list of bands that will be shown on the spots, bands and map pages. Available options match the labels of the buttons in the standard web interface. |
| `sig` | Comma-separated list | (all) | `?sig=POTA,SOTA,NO_SIG` | Sets the list of SIGs that will be shown on the spots, bands and map pages. Available options match the labels of the buttons in the standard web interface. |
| `source` | Comma-separated list | (all) | `?source=Cluster` | Sets the list of sources that will be shown on any spot or alert pages. Available options match the labels of the buttons in the standard web interface. |
| `mode_type` | Comma-separated list | (all) | `?mode_type=PHONE,CW` | Sets the list of mode types that will be shown on the spots, bands and map pages. Available options match the labels of the buttons in the standard web interface. |
| `dx_continent` | Comma-separated list | (all) | `?dx_continent=NA,SA` | Sets the list of DX Continents that will be shown on any spot or alert pages. Available options match the labels of the buttons in the standard web interface. |
| `de_continent` | Comma-separated list | (all) | `?de_continent=EU` | Sets the list of DE Continents that will be shown on the spots, bands and map pages. Available options match the labels of the buttons in the standard web interface. |
| `map-center-lat` | Numeric (decimal) | (auto) | `?map-center-lat=51.5` | Sets the initial latitude of the map centre on the map page. If omitted, the map auto-fits to the loaded spots. |
| `map-center-lon` | Numeric (decimal) | (auto) | `?map-center-lon=-0.1` | Sets the initial longitude of the map centre on the map page. If omitted, the map auto-fits to the loaded spots. |
| `map-zoom` | Numeric (integer) | (auto) | `?map-zoom=6` | Sets the initial zoom level of the map on the map page. If omitted, the map auto-fits to the loaded spots. |
See the comment at the end of the next section regarding reliability and uptime of the "main" server.
## Writing your own client
One of the key strengths of Spothole is that the API is well-defined and open to anyone to use. This means you can build
your own software that uses data from Spothole.
As well as the main API endpoints to fetch spots and alerts, with various possible query parameters, there are also
Server-Sent Events (SSE) API endpoints to receive a live feed, plus various utility lookup endpoints for things like
callsign and park data.
Various approaches exist to writing your own client, but in general:
* Refer to the API docs. These are built on an OpenAPI definition file (`/static/apidocs/openapi.yml`), which you can
automatically use to generate a client skeleton using various software.
* Call the main "spots" or "alerts" API endpoints to get the data you want. For example, your app could call
`https://spothole.app/api/v1/spots` once every few minutes. Apply filters if necessary.
* Call the "options" API to get an idea of which bands, modes etc. the server knows about. You might want to do that
first before calling the spots/alerts APIs, to allow you to populate your filters correctly.
* Refer to the provided HTML/JS interface for a reference on different approaches. For example, the "alerts"/"upcoming"
page simply query the main spot API on a timer, whereas the spots, map and bands pages combine this approach with
using the Server-Sent Events (SSE) endpoint to update live.
* Let me know if you get stuck, I'm happy to help.
Please don't hammer the API with an unnecessarily high request rate. For example, Spothole only queries the POTA API
once every two minutes, so if your client is interested in POTA data there's no need to poll Spothole any more often
than that.
If you absolutely must be informed within seconds of a spot arriving in Spothole, please use the SSE endpoints instead,
e.g. `https://spothole.app/api/v1/spots/stream`.
If you want to handle different types of spot or alert differently within your client, please consider making a single
request to the Spothole API to retrieve all the data, then filtering on your side. For example, call
`https://spothole.app/api/v1/spots?sig=POTA,SOTA` rather than making two separate calls to
`https://spothole.app/api/v1/spots?sig=POTA` and `https://spothole.app/api/v1/spots?sig=SOTA`.
Remember, here at Spothole Inc. we offer an industry-standard "five nines" uptime on our server, with our own unique
twist: we don't tell you which side of the decimal point the nines start! (Translation: This is a hobby project.
`spothole.app` runs on the same server as my blog and other stuff. It might go down without warning. By all means base
your own project on data from the main server if you like, but if you want any control over reliability and downtime,
please run your own copy instead.)
## Running your own copy
If you want to run a copy of Spothole with different configuration settings than the main instance, you can download it
and run it on your own local machine or server.
You will require Python version 3.8 or later. If you encounter an error about `gdal-config` during the following
process, you will also need `libgdal-dev` installed.
To download and set up Spothole on a Debian server, run the following commands. Other operating systems will likely be
similar.
```bash
git clone ssh://git@git.ianrenton.com/ian/spothole.git
cd spothole
python3 -m venv ./.venv
source .venv/bin/activate
pip install -r requirements.txt
deactivate
cp config-example.yml config.yml
```
Then edit `config.yml` in your text editor of choice to set up the software as you like it. Mostly, this will involve
enabling or disabling the various providers of spot, alert and other data.
By default, all outdoor programme providers are enabled, as is one cluster node and the NG3K DXpedition data. The RBN
spot providers are turned off by default due to the volume of traffic from CW/RTTY/FT8 skimmers, and the APRS and Packet
spot providers are off by default on the assumption that Spothole users want a spot with a human at the other end of it,
but all can be easily re-enabled.
Other parameters you will want to update include the base URL to your instance, and whether you want to serve a full
web-based DX cluster interface or just the API endpoints for client software to use.
`config.yml` has an entry for a Clublog API key. If provided, this will allow Spothole to retrieve some more information
about DX spots. The software will work just fine without it, but you may find a few country flags etc. are less accurate
or missing. Clublog API keys are free, but you'll need to get your own by submitting a helpdesk ticket and explaining
what you'll use it for. The admin team are happy with the rate of requests made by my Spothole server, so unless you
change the source code of yours to radically increase the rate of querying Clublog, I'm sure they will be fine with your
server too.
Once you're happy with the content of `config.yml`, you can proceed to running the software.
To run the software this time and any future times you want to run it directly from the command line:
```bash
source .venv/bin/activate
python3 spothole.py
```
The software can take a few seconds to start up, mostly because it is downloading updated files containing the various
bits of reference data it uses. This is normal, don't panic! Once you see `You can access your copy of Spothole at
http://localhost:8080` in the log, your server is good to go.
If you see some errors on startup, check your configuration, e.g. in case you have specified a port for the web server
that is already in use by something else.
### Running using Docker
Spothole comes with a Docker configuration to make it easy to run it in a containerised environment. To set it up using
Docker, the easiest way is to use a Docker Compose file. Create a new directory such as `/opt/docker/spothole` and
create a `compose.yaml` file inside it with the following contents:
```yaml
services:
spothole:
container_name: spothole
build:
context: https://git.ianrenton.com/ian/spothole.git#main
restart: unless-stopped
ports:
- "8080:8080"
volumes:
- ./config.yml:/app/config.yml
- ./cache:/app/cache
```
Save the file. You will still need to create a copy of `config-example.yml` and name it `config.yml`, though with the
Docker setup nothing has actually been downloaded yet, so you will have to copy the example from the repository some
other way, e.g. [from the repo in a web browser](https://git.ianrenton.com/ian/spothole/src/branch/main/config-example.yml).
With that in place, run `docker compose up` and you should be good to go. To detach, press `d` or run the command with
the `-d` flag.
### Multiple cluster nodes with different settings
Dan, S50U has written in with his Spothole cluster settings. He is using a cluster node which provides RBN spots, and
uses different SSIDs on his callsign to get different settings when logged into the same cluster node. For example:
```
-
class: "DXCluster"
name: "S50CLX"
enabled: true
host: "s50clx.si"
port: 41112
login_prompt: "login: "
login_callsign: "callsign-10"
```
Telnet to DXSpider and log in with "callsign-10" and execute the following commands:
`CLEAR/SPOTS ALL` (delete all previous filters)<br/>
`UNSET/ANN` (stop announce messages)<br/>
`UNSET/WCY` (stop wcy messages)<br/>
`UNSET/WWV` (stop wwv messages)<br/>
`SET/DX` (enable human DX spots)
```
-
class: "DXCluster"
name: "RBN CW"
enabled: true
host: "s50clx.si"
port: 41112
login_prompt: "login: "
login_callsign: "callsign-11"
allow_rbn_spots: true
enabled-by-default-in-web-ui: false
```
Telnet to DXSpider and log in with "callsign-11" and execute the following commands:
`CLEAR/SPOTS ALL` (delete all previous filters)<br/>
`UNSET/ANN` (stop announce messages)<br/>
`UNSET/WCY` (stop wcy messages)<br/>
`UNSET/WWV` (stop wwv messages)<br/>
`UNSET/DX` (stop human DX spots)<br/>
`SET/SKIMMER CW` (enable CW RBN spots)
```
-
class: "DXCluster"
name: "RBN RTTY"
enabled: true
host: "s50clx.si"
port: 41112
login_prompt: "login: "
login_callsign: "callsign-12"
allow_rbn_spots: true
enabled-by-default-in-web-ui: false
```
Telnet to DXSpider and log in with "callsign-12" and execute the following commands:
`CLEAR/SPOTS ALL` (delete all previous filters)<br/>
`UNSET/ANN` (stop announce messages)<br/>
`UNSET/WCY` (stop wcy messages)<br/>
`UNSET/WWV` (stop wwv messages)<br/>
`UNSET/DX` (stop human DX spots)<br/>
`SET/SKIMMER RTTY` (enable RTTY RBN spots)
```
-
class: "DXCluster"
name: "RBN FT4/8"
enabled: true
host: "s50clx.si"
port: 41112
login_prompt: "login: "
login_callsign: "callsign-13"
allow_rbn_spots: true
enabled-by-default-in-web-ui: false
```
Telnet to DXSpider and log in with "callsign-13" and execute the following commands:
`CLEAR/SPOTS ALL` (delete all previous filters)<br/>
`UNSET/ANN` (stop announce messages)<br/>
`UNSET/WCY` (stop wcy messages)<br/>
`UNSET/WWV` (stop wwv messages)<br/>
`UNSET/DX` (stop human DX spots)<br/>
`SET/SKIMMER FT` (enable FT RBN spots)
For each callsign-SSID, we also specify our basic information with commands:
`SET/NAME Spothole10`, Spothole11... etc.<br/>
`SET/QTH Cerkno`<br/>
`SET/QRA JN66XD`<br/>
`SET/HOME S50CLX`
### systemd configuration
If you want Spothole to run automatically on startup on a Linux distribution that uses `systemd`, follow the
instructions here. For distros that don't use `systemd`, or Windows/OSX/etc., you can find generic instructions for your
OS online.
Create a file at `/etc/systemd/system/spothole.service`. Give it the following content, adjusting for the user you want
to run it as and the directory in which you have installed it:
```
[Unit]
Description=Spothole
After=syslog.target network.target
[Service]
Type=simple
User=spothole
WorkingDirectory=/home/spothole/spothole
ExecStart=/home/spothole/spothole/.venv/bin/python /home/spothole/spothole/spothole.py --serve-in-foreground
Restart=on-abort
[Install]
WantedBy=multi-user.target
```
Run the following:
```bash
sudo systemctl daemon-reload
sudo systemctl enable spothole
sudo systemctl start spothole
```
Check the service has started up correctly with `sudo journalctl -u spothole -f`.
### nginx Reverse Proxy configuration
Web servers generally serve their pages from port 80. However, it's best not to serve Spothole's web interface directly
on port 80, as that requires root privileges on a Linux system. It also and prevents us using HTTPS to serve a secure
site, since Spothole itself doesn't directly support acting as an HTTPS server. The normal solution to this is to use a
"reverse proxy" setup, where a general web server handles HTTP and HTTP requests (to port 80 & 443 respectively), then
passes on the request to the back-end application (in this case Spothole). nginx is a common choice for this general web
server.
To set up nginx as a reverse proxy that sits in front of Spothole, first ensure it's installed e.g.
`sudo apt install nginx`, and enabled e.g. `sudo systemd enable nginx`.
Create a file at `/etc/nginx/sites-available/` called `spothole`. Give it the following contents, replacing
`spothole.app` with the domain name on which you want to run Spothole. If you changed the port on which Spothole runs,
update that on the "proxy_pass" line, and if you installed Spothole somewhere other than `/home/spothole/spothole`,
adjust the alias location for serving static files.
(The latter section, configuring the nginx server to serve static files directly, improves efficiency because it saves
Spothole itself from serving JS, CSS etc. files. If you can't do this for some reason, e.g. your nginx and spothole are
on different computers, you can omit the `location /static/ {}` block.)
```nginx
server {
server_name spothole.app;
# Global proxy settings
proxy_http_version 1.1;
proxy_set_header Connection "";
proxy_connect_timeout 10s;
proxy_buffering on;
# Pass on IP address and host information to Spothole, in case logging this information is required
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_set_header X-Forwarded-Proto $scheme;
# Wellknown area for Lets Encrypt
location /.well-known/ {
alias /var/www/html/.well-known/;
}
# Load static assets directly from the Spothole static directory
location /static/ {
alias /home/spothole/spothole/static/;
expires 1h;
add_header Cache-Control "public, max-age=3600, must-revalidate";
}
# SSE endpoints
location ~ ^/api/v1/(spots|alerts)/stream/? {
proxy_pass http://127.0.0.1:8080;
# Remove buffering, remove caching, add suitable timeouts for SSE API calls
proxy_buffering off;
proxy_cache off;
proxy_read_timeout 24h;
proxy_send_timeout 24h;
proxy_set_header X-Accel-Buffering no;
add_header Cache-Control no-store always;
# Allow cross-origin requests to API
proxy_hide_header Access-Control-Allow-Origin;
add_header Access-Control-Allow-Origin * always;
}
# Other API endpoints
location /api/ {
proxy_pass http://127.0.0.1:8080;
# Remove buffering, remove caching, add suitable timeouts for API calls
proxy_buffering off;
proxy_cache off;
proxy_read_timeout 30s;
add_header Cache-Control no-store always;
# Allow cross-origin requests to API
proxy_hide_header Access-Control-Allow-Origin;
add_header Access-Control-Allow-Origin * always;
}
# Templated pages
location / {
proxy_pass http://127.0.0.1:8080;
proxy_read_timeout 30s;
add_header Cache-Control "no-cache, must-revalidate" always;
}
}
```
One further change you might want to make to the file above is the `add_header Access-Control-Allow-Origin` statements.
These are what's used on my own Spothole server to make sure that other third-party web-based software can get the data
from my instance, and applies to any endpoint underneath `/api`. If you want *your* Spothole instance to be set up the
same way, so that others can write software in JavaScript that can access it, leave this intact. But if you want your
Spothole instance to only be usable by scripts running on the web server you write, you can remove these lines. (Note
that this doesn't stop other people writing *non-web-based* software that accesses your Spothole API&mdash;the
enforcement of cross-origin headers only happens within the user's browser. If you need to lock your instance down so
that no-one else can access it with *any* software, that's an aspect of nginx or firewall config that you will need to
find help with elsewhere.)
Now, make a symbolic link to enable the site:
```bash
cd /etc/nginx/sites-enabled
sudo ln -sf ../sites-available/spothole
```
Test that your nginx config isn't broken using `nginx -t`. If it works, restart nginx with
`sudo systemctl restart nginx`.
If you haven't already done so, set up a DNS entry to make sure requests for your domain name end up at the server
that's running Spothole.
You should now be able to access the web interface by going to the domain from your browser.
Once that's working, [install certbot](https://certbot.eff.org/instructions?ws=nginx&os=snap) onto your server. Run it
as root, and when prompted pick your domain name from the list. After a few seconds, it should successfully provision a
certificate and modify your nginx config files automatically. You should then be able to access the site via HTTPS.
## Modifying the source code
Spothole is Public Domain licenced, so you can grab the source code and start modifying it for your own needs.
Contributions of code back to the main repository are encouraged, but completely optional.
### Code structure
To navigate your way around the source code, this list may help.
*Python back-end code*
* `/core` - Core classes and utilities
* `/data` - Data storage classes
* `/providers/spot` - Classes providing spots by accessing the APIs of other services
* `/providers/alert` - Classes providing alerts by accessing the APIs of other services
* `/providers/solarconditions` - Classes providing solar and propagation by accessing the APIs of other services
* `/providers/staticdata` - Classes providing static lookup data by accessing bundled data files or the APIs of other
services
* `/providers/sigrefdata` - Classes providing SIG reference lookup data by accessing bundled data files or the APIs of
other services
* `/server` - Classes for running Spothole's own web server
* `spothole.py` - Main application script
*Templates*
* `/templates` - Templates used for constructing Spothole's user-targeted HTML pages
*HTML/JS/CSS front-end code*
* `/static` - Root for static files served by the web server. These are all served from a path starting `/static/`.
* `/static/apidocs` - Contains the OpenAPI spec (`openapi.yml`)
* `/static/audio` - Audio files used by the web front-end
* `/static/css` - CSS files used by the web front-end
* `/static/img` - image files used by the web front-end
* `/static/js` - JavaScript used by the web front-end
* `/static/vendor` - Third-party libraries (CSS, JS, fonts and images)
*Miscellaneous*
* `/` - pip `requirements.txt`, config, README, etc.
* `/images` - Image sources
* `/datafiles` - Local data files, used by some providers when the data will never change and/or is not easily available
online in a format Spothole can handle
* `/cache` - Directory where Spothole stores all the data it uses that should be persisted to disk. Created on first
run.
### Extending the server
Spothole is designed to be easily extensible. If you want to write your own spot provider, for example, simply add a
module to the `providers.spot` package containing your class. (Currently, in order to be loaded correctly, the module
(file) name should be the same as the class name, but lower case.)
Your class should extend "SpotProvider"; if it operates by polling an HTTP Server on a timer, it can instead extend "
HTTPSpotProvider" where some of the work is done for you.
The class will need to implement a constructor that takes in the `provider_config` and provides it to the superclass
constructor, while also taking any other config parameters it needs.
If you're extending the base `SpotProvider` class, you will need to implement `start()` and `stop()` methods that start
and stop a separate thread which handles the provider's processing needs. The thread should call `submit()` or
`submit_batch()` when it has one or more spots to report.
If you're extending the `HTTPSpotProvider` class, you will need to provide a URI to query and an interval to the
superclass constructor. You'll then need to implement the `http_response_to_spots()` method which is called when new
data is retrieved. Your implementation should then call `submit()` or `submit_batch()` when it has one or more spots to
report.
When constructing spots, use the comments in the Spot class and the existing implementations as an example. All
parameters are optional, but you will at least want to provide a `time` (which must be timezone-aware) and a `dx_call`.
Finally, simply add the appropriate config to the `spot_providers` section of `config.yml`, and your provider should be
instantiated on startup.
The same approach as above is also used for alerts, and other types of providers. Give me a shout if you need any
advice.
You are more than welcome to use the data and the API that Spothole provides to power your own software, to run your
own Spothole server, or to modify it in any way. More details can be found in the following sections:
* [Embedding Spothole in another website](docs/embedding.md)
* [Writing your own client](docs/clients.md)
* [Running your own copy](docs/running.md)
* [nginx reverse proxy configuration](docs/nginx.md)
* [systemd service file](docs/systemd.md)
* [Running in Docker](docs/docker.md)
* [Use of multiple cluster logins](docs/multicluster.md)
* [Modifying the source code](docs/modifying.md)
## Thanks