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version=0.22.4
assignment-operator=end-line
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exp-grouping=preserve
field-space=loose
if-then-else=compact
indicate-multiline-delimiters=space
indicate-nested-or-patterns=unsafe-no
infix-precedence=indent
leading-nested-match-parens=false
let-and=sparse
let-binding-spacing=compact
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margin=80
max-indent=68
module-item-spacing=sparse
ocp-indent-compat=false
parens-ite=false
parens-tuple=always
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single-case=compact
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space-around-variants=true
type-decl=sparse
wrap-comments=false
wrap-fun-args=true

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## unreleased

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### GNU AFFERO GENERAL PUBLIC LICENSE
Version 3, 19 November 2007
Copyright (C) 2007 Free Software Foundation, Inc.
<https://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies of this
license document, but changing it is not allowed.
### Preamble
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#### 7. Additional Terms.
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#### 8. Termination.
You may not propagate or modify a covered work except as expressly
provided under this License. Any attempt otherwise to propagate or
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this License (including any patent licenses granted under the third
paragraph of section 11).
However, if you cease all violation of this License, then your license
from a particular copyright holder is reinstated (a) provisionally,
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#### 9. Acceptance Not Required for Having Copies.
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a copy of the Program. Ancillary propagation of a covered work
occurring solely as a consequence of using peer-to-peer transmission
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nothing other than this License grants you permission to propagate or
modify any covered work. These actions infringe copyright if you do
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#### 10. Automatic Licensing of Downstream Recipients.
Each time you convey a covered work, the recipient automatically
receives a license from the original licensors, to run, modify and
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You may not impose any further restrictions on the exercise of the
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#### 11. Patents.
A "contributor" is a copyright holder who authorizes use under this
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A contributor's "essential patent claims" are all patent claims owned
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receiving the covered work authorizing them to use, propagate, modify
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you grant is automatically extended to all recipients of the covered
work and works based on it.
A patent license is "discriminatory" if it does not include within the
scope of its coverage, prohibits the exercise of, or is conditioned on
the non-exercise of one or more of the rights that are specifically
granted under this License. You may not convey a covered work if you
are a party to an arrangement with a third party that is in the
business of distributing software, under which you make payment to the
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license was granted, prior to 28 March 2007.
Nothing in this License shall be construed as excluding or limiting
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otherwise be available to you under applicable patent law.
#### 12. No Surrender of Others' Freedom.
If conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot convey a
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terms that obligate you to collect a royalty for further conveying
from those to whom you convey the Program, the only way you could
satisfy both those terms and this License would be to refrain entirely
from conveying the Program.
#### 13. Remote Network Interaction; Use with the GNU General Public License.
Notwithstanding any other provision of this License, if you modify the
Program, your modified version must prominently offer all users
interacting with it remotely through a computer network (if your
version supports such interaction) an opportunity to receive the
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#### 14. Revised Versions of this License.
The Free Software Foundation may publish revised and/or new versions
of the GNU Affero General Public License from time to time. Such new
versions will be similar in spirit to the present version, but may
differ in detail to address new problems or concerns.
Each version is given a distinguishing version number. If the Program
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option of following the terms and conditions either of that numbered
version or of any later version published by the Free Software
Foundation. If the Program does not specify a version number of the
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If the Program specifies that a proxy can decide which future versions
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to choose that version for the Program.
Later license versions may give you additional or different
permissions. However, no additional obligations are imposed on any
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later version.
#### 15. Disclaimer of Warranty.
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT
WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND
PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
CORRECTION.
#### 16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR
CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
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LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM
TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER
PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
#### 17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
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# droloc
[dromloc] is an [OCaml] executable/library to TODO.
## About
- [LICENSE]
- [CHANGELOG]
[CHANGELOG]: ./CHANGES.md
[example]: ./example
[LICENSE]: ./LICENSE.md
[opam file]: ./dromloc.opam
[test suite]: ./test
[documentation]: TODO/dromloc
[how to install opam]: https://opam.ocaml.org/doc/Install.html
[OCaml]: https://ocaml.org
[opam]: https://opam.ocaml.org/
[dromloc]: TODO/dromloc

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- websocket persistent?
- do it still send geo pos if tab not focused
- try it on mobile
- add direction
- different color for all camels
- clicking on dromedary should show name
- sidebar we can open to show list
of [dromedary colorful icon] <-> name
- add rally point, button popup for first client in the room
and in the menu bar too: make the map in "rally point setup" mode

3
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(documentation
(package dromloc)
(mld_files index))

17
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{0 dromloc}
{{:https://TODO/dromloc} dromloc} is an {{:https://ocaml.org} OCaml} library/executable to TODO.
{1:api API}
{!modules:
Droloc
}
{1:private_api Private API}
You shouldn't have to use any of these modules, they're used internally only.
{!modules:
TODO
}

33
dromloc.opam Normal file
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# This file is generated by dune, edit dune-project instead
opam-version: "2.0"
synopsis: "OCaml library/executable to TODO"
description: "dromloc is an OCaml library/executable to TODO."
maintainer: ["swrup@protonmail.com"]
authors: ["swrup"]
license: "AGPL"
tags: ["dromloc" "TODO" "TODO" "TODO" "TODO"]
homepage: "TODO/dromloc"
doc: "TODO/dromloc"
bug-reports: "TODO/dromloc"
depends: [
"dune" {>= "2.9"}
"ocaml" {>= "4.08"}
"odoc" {with-doc}
]
build: [
["dune" "subst"] {dev}
[
"dune"
"build"
"-p"
name
"-j"
jobs
"--promote-install-files=false"
"@install"
"@runtest" {with-test}
"@doc" {with-doc}
]
["dune" "install" "-p" name "--create-install-files" name]
]
dev-repo: "TODO/dromloc"

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dune-project Normal file
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(lang dune 2.9)
(implicit_transitive_deps false)
(name dromloc)
(license AGPL)
(authors "swrup")
(maintainers "swrup@protonmail.com")
(source
(uri TODO/dromloc))
(homepage TODO/dromloc)
(bug_reports TODO/dromloc)
(documentation TODO/dromloc)
(generate_opam_files true)
(package
(name dromloc)
(synopsis "OCaml library/executable to TODO")
(description
"dromloc is an OCaml library/executable to TODO.")
(tags
(dromloc TODO TODO TODO TODO))
(depends
(ocaml
(>= 4.08))))

3
example/dune Normal file
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@ -0,0 +1,3 @@
(executable
(name main)
(modules main))

1
example/main.ml Normal file
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@ -0,0 +1 @@
let () = Format.printf "TODO@."

94
src/app.ml Normal file
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module App_id = struct
let qualifier = "org"
let organization = "Dromloc"
let application = "dromloc"
end
module Project_dirs = Directories.Project_dirs (App_id)
let data_dir =
match Project_dirs.data_dir with
| None -> failwith "can't compute data directory"
| Some data_dir -> data_dir
let config_dir =
match Project_dirs.config_dir with
| None -> failwith "can't compute configuration directory"
| Some config_dir -> config_dir
let config =
let filename = Filename.concat config_dir "config.scfg" in
if not @@ Sys.file_exists filename then
failwith
@@ Format.sprintf "configuration file `%s` does not exist, please create it"
filename;
Dream.log "config file: %s" filename;
match Scfg.Parse.from_file filename with
| Error e -> failwith e
| Ok config -> config
let open_registration =
match Scfg.Query.get_dir "open_registration" config with
| None -> true
| Some open_registration -> (
match Scfg.Query.get_param 0 open_registration with
| Error e -> failwith e
| Ok "true" -> true
| Ok "false" -> false
| Ok _unknown ->
failwith "invalid `open_registration` value in configuration file" )
let () = Dream.log "open_registration: %b" open_registration
let port =
match Scfg.Query.get_dir "port" config with
| None -> 8080
| Some port -> (
match Scfg.Query.get_param 0 port with
| Error e -> failwith e
| Ok n -> (
try
let n = int_of_string n in
if n < 0 then raise (Invalid_argument "negative port number");
n
with Invalid_argument _msg ->
failwith "invalid `port` value in configuration file" ) )
let () = Dream.log "port: %d" port
let hostname =
match Scfg.Query.get_dir "hostname" config with
| None -> Format.sprintf "localhost:%d" port
| Some hostname ->
Result.fold ~error:failwith ~ok:Fun.id (Scfg.Query.get_param 0 hostname)
let () = Dream.log "hostname: %s" hostname
let log =
match Scfg.Query.get_dir "log" config with
| None -> true
| Some log -> (
match Scfg.Query.get_param 0 log with
| Error e -> failwith e
| Ok "true" -> true
| Ok "false" -> false
| Ok _unknown -> failwith "invalid `log` value in configuration file" )
let () = Dream.log "log: %b" log
let get_dirs name =
let dirs = Scfg.Query.get_dirs name config in
List.map
(fun dir ->
Result.fold ~error:failwith ~ok:Fun.id (Scfg.Query.get_param 0 dir) )
dirs
let random_state = Random.State.make_self_init ()
let () = Random.set_state random_state
let about =
(* TODO read from about.txt *)
"This is dromloc"

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This is some text about dromloc

640
src/content/assets/css/leaflet.css Normal file
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@ -0,0 +1,640 @@
/* required styles */
.leaflet-pane,
.leaflet-tile,
.leaflet-marker-icon,
.leaflet-marker-shadow,
.leaflet-tile-container,
.leaflet-pane > svg,
.leaflet-pane > canvas,
.leaflet-zoom-box,
.leaflet-image-layer,
.leaflet-layer {
position: absolute;
left: 0;
top: 0;
}
.leaflet-container {
overflow: hidden;
}
.leaflet-tile,
.leaflet-marker-icon,
.leaflet-marker-shadow {
-webkit-user-select: none;
-moz-user-select: none;
user-select: none;
-webkit-user-drag: none;
}
/* Prevents IE11 from highlighting tiles in blue */
.leaflet-tile::selection {
background: transparent;
}
/* Safari renders non-retina tile on retina better with this, but Chrome is worse */
.leaflet-safari .leaflet-tile {
image-rendering: -webkit-optimize-contrast;
}
/* hack that prevents hw layers "stretching" when loading new tiles */
.leaflet-safari .leaflet-tile-container {
width: 1600px;
height: 1600px;
-webkit-transform-origin: 0 0;
}
.leaflet-marker-icon,
.leaflet-marker-shadow {
display: block;
}
/* .leaflet-container svg: reset svg max-width decleration shipped in Joomla! (joomla.org) 3.x */
/* .leaflet-container img: map is broken in FF if you have max-width: 100% on tiles */
.leaflet-container .leaflet-overlay-pane svg,
.leaflet-container .leaflet-marker-pane img,
.leaflet-container .leaflet-shadow-pane img,
.leaflet-container .leaflet-tile-pane img,
.leaflet-container img.leaflet-image-layer,
.leaflet-container .leaflet-tile {
max-width: none !important;
max-height: none !important;
}
.leaflet-container.leaflet-touch-zoom {
-ms-touch-action: pan-x pan-y;
touch-action: pan-x pan-y;
}
.leaflet-container.leaflet-touch-drag {
-ms-touch-action: pinch-zoom;
/* Fallback for FF which doesn't support pinch-zoom */
touch-action: none;
touch-action: pinch-zoom;
}
.leaflet-container.leaflet-touch-drag.leaflet-touch-zoom {
-ms-touch-action: none;
touch-action: none;
}
.leaflet-container {
-webkit-tap-highlight-color: transparent;
}
.leaflet-container a {
-webkit-tap-highlight-color: rgba(51, 181, 229, 0.4);
}
.leaflet-tile {
filter: inherit;
visibility: hidden;
}
.leaflet-tile-loaded {
visibility: inherit;
}
.leaflet-zoom-box {
width: 0;
height: 0;
-moz-box-sizing: border-box;
box-sizing: border-box;
z-index: 800;
}
/* workaround for https://bugzilla.mozilla.org/show_bug.cgi?id=888319 */
.leaflet-overlay-pane svg {
-moz-user-select: none;
}
.leaflet-pane { z-index: 400; }
.leaflet-tile-pane { z-index: 200; }
.leaflet-overlay-pane { z-index: 400; }
.leaflet-shadow-pane { z-index: 500; }
.leaflet-marker-pane { z-index: 600; }
.leaflet-tooltip-pane { z-index: 650; }
.leaflet-popup-pane { z-index: 700; }
.leaflet-map-pane canvas { z-index: 100; }
.leaflet-map-pane svg { z-index: 200; }
.leaflet-vml-shape {
width: 1px;
height: 1px;
}
.lvml {
behavior: url(#default#VML);
display: inline-block;
position: absolute;
}
/* control positioning */
.leaflet-control {
position: relative;
z-index: 800;
pointer-events: visiblePainted; /* IE 9-10 doesn't have auto */
pointer-events: auto;
}
.leaflet-top,
.leaflet-bottom {
position: absolute;
z-index: 1000;
pointer-events: none;
}
.leaflet-top {
top: 0;
}
.leaflet-right {
right: 0;
}
.leaflet-bottom {
bottom: 0;
}
.leaflet-left {
left: 0;
}
.leaflet-control {
float: left;
clear: both;
}
.leaflet-right .leaflet-control {
float: right;
}
.leaflet-top .leaflet-control {
margin-top: 10px;
}
.leaflet-bottom .leaflet-control {
margin-bottom: 10px;
}
.leaflet-left .leaflet-control {
margin-left: 10px;
}
.leaflet-right .leaflet-control {
margin-right: 10px;
}
/* zoom and fade animations */
.leaflet-fade-anim .leaflet-tile {
will-change: opacity;
}
.leaflet-fade-anim .leaflet-popup {
opacity: 0;
-webkit-transition: opacity 0.2s linear;
-moz-transition: opacity 0.2s linear;
transition: opacity 0.2s linear;
}
.leaflet-fade-anim .leaflet-map-pane .leaflet-popup {
opacity: 1;
}
.leaflet-zoom-animated {
-webkit-transform-origin: 0 0;
-ms-transform-origin: 0 0;
transform-origin: 0 0;
}
.leaflet-zoom-anim .leaflet-zoom-animated {
will-change: transform;
}
.leaflet-zoom-anim .leaflet-zoom-animated {
-webkit-transition: -webkit-transform 0.25s cubic-bezier(0,0,0.25,1);
-moz-transition: -moz-transform 0.25s cubic-bezier(0,0,0.25,1);
transition: transform 0.25s cubic-bezier(0,0,0.25,1);
}
.leaflet-zoom-anim .leaflet-tile,
.leaflet-pan-anim .leaflet-tile {
-webkit-transition: none;
-moz-transition: none;
transition: none;
}
.leaflet-zoom-anim .leaflet-zoom-hide {
visibility: hidden;
}
/* cursors */
.leaflet-interactive {
cursor: pointer;
}
.leaflet-grab {
cursor: -webkit-grab;
cursor: -moz-grab;
cursor: grab;
}
.leaflet-crosshair,
.leaflet-crosshair .leaflet-interactive {
cursor: crosshair;
}
.leaflet-popup-pane,
.leaflet-control {
cursor: auto;
}
.leaflet-dragging .leaflet-grab,
.leaflet-dragging .leaflet-grab .leaflet-interactive,
.leaflet-dragging .leaflet-marker-draggable {
cursor: move;
cursor: -webkit-grabbing;
cursor: -moz-grabbing;
cursor: grabbing;
}
/* marker & overlays interactivity */
.leaflet-marker-icon,
.leaflet-marker-shadow,
.leaflet-image-layer,
.leaflet-pane > svg path,
.leaflet-tile-container {
pointer-events: none;
}
.leaflet-marker-icon.leaflet-interactive,
.leaflet-image-layer.leaflet-interactive,
.leaflet-pane > svg path.leaflet-interactive,
svg.leaflet-image-layer.leaflet-interactive path {
pointer-events: visiblePainted; /* IE 9-10 doesn't have auto */
pointer-events: auto;
}
/* visual tweaks */
.leaflet-container {
background: #ddd;
outline: 0;
}
.leaflet-container a {
color: #0078A8;
}
.leaflet-container a.leaflet-active {
outline: 2px solid orange;
}
.leaflet-zoom-box {
border: 2px dotted #38f;
background: rgba(255,255,255,0.5);
}
/* general typography */
.leaflet-container {
font: 12px/1.5 "Helvetica Neue", Arial, Helvetica, sans-serif;
}
/* general toolbar styles */
.leaflet-bar {
box-shadow: 0 1px 5px rgba(0,0,0,0.65);
border-radius: 4px;
}
.leaflet-bar a,
.leaflet-bar a:hover {
background-color: #fff;
border-bottom: 1px solid #ccc;
width: 26px;
height: 26px;
line-height: 26px;
display: block;
text-align: center;
text-decoration: none;
color: black;
}
.leaflet-bar a,
.leaflet-control-layers-toggle {
background-position: 50% 50%;
background-repeat: no-repeat;
display: block;
}
.leaflet-bar a:hover {
background-color: #f4f4f4;
}
.leaflet-bar a:first-child {
border-top-left-radius: 4px;
border-top-right-radius: 4px;
}
.leaflet-bar a:last-child {
border-bottom-left-radius: 4px;
border-bottom-right-radius: 4px;
border-bottom: none;
}
.leaflet-bar a.leaflet-disabled {
cursor: default;
background-color: #f4f4f4;
color: #bbb;
}
.leaflet-touch .leaflet-bar a {
width: 30px;
height: 30px;
line-height: 30px;
}
.leaflet-touch .leaflet-bar a:first-child {
border-top-left-radius: 2px;
border-top-right-radius: 2px;
}
.leaflet-touch .leaflet-bar a:last-child {
border-bottom-left-radius: 2px;
border-bottom-right-radius: 2px;
}
/* zoom control */
.leaflet-control-zoom-in,
.leaflet-control-zoom-out {
font: bold 18px 'Lucida Console', Monaco, monospace;
text-indent: 1px;
}
.leaflet-touch .leaflet-control-zoom-in, .leaflet-touch .leaflet-control-zoom-out {
font-size: 22px;
}
/* layers control */
.leaflet-control-layers {
box-shadow: 0 1px 5px rgba(0,0,0,0.4);
background: #fff;
border-radius: 5px;
}
.leaflet-control-layers-toggle {
background-image: url(/assets/img/layers.png);
width: 36px;
height: 36px;
}
.leaflet-retina .leaflet-control-layers-toggle {
background-image: url(/assets/img/layers-2x.png);
background-size: 26px 26px;
}
.leaflet-touch .leaflet-control-layers-toggle {
width: 44px;
height: 44px;
}
.leaflet-control-layers .leaflet-control-layers-list,
.leaflet-control-layers-expanded .leaflet-control-layers-toggle {
display: none;
}
.leaflet-control-layers-expanded .leaflet-control-layers-list {
display: block;
position: relative;
}
.leaflet-control-layers-expanded {
padding: 6px 10px 6px 6px;
color: #333;
background: #fff;
}
.leaflet-control-layers-scrollbar {
overflow-y: scroll;
overflow-x: hidden;
padding-right: 5px;
}
.leaflet-control-layers-selector {
margin-top: 2px;
position: relative;
top: 1px;
}
.leaflet-control-layers label {
display: block;
}
.leaflet-control-layers-separator {
height: 0;
border-top: 1px solid #ddd;
margin: 5px -10px 5px -6px;
}
/* Default icon URLs */
.leaflet-default-icon-path {
background-image: url(/assets/img/marker-icon.png);
}
/* attribution and scale controls */
.leaflet-container .leaflet-control-attribution {
background: #fff;
background: rgba(255, 255, 255, 0.7);
margin: 0;
}
.leaflet-control-attribution,
.leaflet-control-scale-line {
padding: 0 5px;
color: #333;
}
.leaflet-control-attribution a {
text-decoration: none;
}
.leaflet-control-attribution a:hover {
text-decoration: underline;
}
.leaflet-container .leaflet-control-attribution,
.leaflet-container .leaflet-control-scale {
font-size: 11px;
}
.leaflet-left .leaflet-control-scale {
margin-left: 5px;
}
.leaflet-bottom .leaflet-control-scale {
margin-bottom: 5px;
}
.leaflet-control-scale-line {
border: 2px solid #777;
border-top: none;
line-height: 1.1;
padding: 2px 5px 1px;
font-size: 11px;
white-space: nowrap;
overflow: hidden;
-moz-box-sizing: border-box;
box-sizing: border-box;
background: #fff;
background: rgba(255, 255, 255, 0.5);
}
.leaflet-control-scale-line:not(:first-child) {
border-top: 2px solid #777;
border-bottom: none;
margin-top: -2px;
}
.leaflet-control-scale-line:not(:first-child):not(:last-child) {
border-bottom: 2px solid #777;
}
.leaflet-touch .leaflet-control-attribution,
.leaflet-touch .leaflet-control-layers,
.leaflet-touch .leaflet-bar {
box-shadow: none;
}
.leaflet-touch .leaflet-control-layers,
.leaflet-touch .leaflet-bar {
border: 2px solid rgba(0,0,0,0.2);
background-clip: padding-box;
}
/* popup */
.leaflet-popup {
position: absolute;
text-align: center;
margin-bottom: 20px;
}
.leaflet-popup-content-wrapper {
padding: 1px;
text-align: left;
border-radius: 12px;
}
.leaflet-popup-content {
margin: 13px 19px;
line-height: 1.4;
}
.leaflet-popup-content p {
margin: 18px 0;
}
.leaflet-popup-tip-container {
width: 40px;
height: 20px;
position: absolute;
left: 50%;
margin-left: -20px;
overflow: hidden;
pointer-events: none;
}
.leaflet-popup-tip {
width: 17px;
height: 17px;
padding: 1px;
margin: -10px auto 0;
-webkit-transform: rotate(45deg);
-moz-transform: rotate(45deg);
-ms-transform: rotate(45deg);
transform: rotate(45deg);
}
.leaflet-popup-content-wrapper,
.leaflet-popup-tip {
background: white;
color: #333;
box-shadow: 0 3px 14px rgba(0,0,0,0.4);
}
.leaflet-container a.leaflet-popup-close-button {
position: absolute;
top: 0;
right: 0;
padding: 4px 4px 0 0;
border: none;
text-align: center;
width: 18px;
height: 14px;
font: 16px/14px Tahoma, Verdana, sans-serif;
color: #c3c3c3;
text-decoration: none;
font-weight: bold;
background: transparent;
}
.leaflet-container a.leaflet-popup-close-button:hover {
color: #999;
}
.leaflet-popup-scrolled {
overflow: auto;
border-bottom: 1px solid #ddd;
border-top: 1px solid #ddd;
}
.leaflet-oldie .leaflet-popup-content-wrapper {
-ms-zoom: 1;
}
.leaflet-oldie .leaflet-popup-tip {
width: 24px;
margin: 0 auto;
-ms-filter: "progid:DXImageTransform.Microsoft.Matrix(M11=0.70710678, M12=0.70710678, M21=-0.70710678, M22=0.70710678)";
filter: progid:DXImageTransform.Microsoft.Matrix(M11=0.70710678, M12=0.70710678, M21=-0.70710678, M22=0.70710678);
}
.leaflet-oldie .leaflet-popup-tip-container {
margin-top: -1px;
}
.leaflet-oldie .leaflet-control-zoom,
.leaflet-oldie .leaflet-control-layers,
.leaflet-oldie .leaflet-popup-content-wrapper,
.leaflet-oldie .leaflet-popup-tip {
border: 1px solid #999;
}
/* div icon */
.leaflet-div-icon {
background: #fff;
border: 1px solid #666;
}
/* Tooltip */
/* Base styles for the element that has a tooltip */
.leaflet-tooltip {
position: absolute;
padding: 6px;
background-color: #fff;
border: 1px solid #fff;
border-radius: 3px;
color: #222;
white-space: nowrap;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
pointer-events: none;
box-shadow: 0 1px 3px rgba(0,0,0,0.4);
}
.leaflet-tooltip.leaflet-clickable {
cursor: pointer;
pointer-events: auto;
}
.leaflet-tooltip-top:before,
.leaflet-tooltip-bottom:before,
.leaflet-tooltip-left:before,
.leaflet-tooltip-right:before {
position: absolute;
pointer-events: none;
border: 6px solid transparent;
background: transparent;
content: "";
}
/* Directions */
.leaflet-tooltip-bottom {
margin-top: 6px;
}
.leaflet-tooltip-top {
margin-top: -6px;
}
.leaflet-tooltip-bottom:before,
.leaflet-tooltip-top:before {
left: 50%;
margin-left: -6px;
}
.leaflet-tooltip-top:before {
bottom: 0;
margin-bottom: -12px;
border-top-color: #fff;
}
.leaflet-tooltip-bottom:before {
top: 0;
margin-top: -12px;
margin-left: -6px;
border-bottom-color: #fff;
}
.leaflet-tooltip-left {
margin-left: -6px;
}
.leaflet-tooltip-right {
margin-left: 6px;
}
.leaflet-tooltip-left:before,
.leaflet-tooltip-right:before {
top: 50%;
margin-top: -6px;
}
.leaflet-tooltip-left:before {
right: 0;
margin-right: -12px;
border-left-color: #fff;
}
.leaflet-tooltip-right:before {
left: 0;
margin-left: -12px;
border-right-color: #fff;
}

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html {
height: 100%;
}
body {
height: 100%;
padding-top: 0rem;
color: #5a5a5a;
background-color: #e8eaf6;
line-height: 1.6;
font-size: 18px;
}
#page-title {
text-align: center;
}
main {
height: 100%;
width: 100%;
}
#map {
height: 100%;
width: 100%;
}

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@ -0,0 +1,8 @@
(rule
(target client.js)
(deps
(file ../../../js/client.bc.js))
(action
(with-stdout-to
%{target}
(cat ../../../js/client.bc.js))))

95
src/dromloc.ml Normal file
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@ -0,0 +1,95 @@
open Lwt.Syntax
type dromedary_info =
{ latitude : float
; longitude : float
; dir : float
; timestamp : float
}
type room = (string, Dream.websocket) Hashtbl.t
let rooms : (string, room) Hashtbl.t = Hashtbl.create ~random:true 1
let alphabet = [| 'a'; 'a'; 'b'; 'c' |]
let room_id_len = 4
let make_room () =
let room_id =
String.init room_id_len (fun _i ->
let k = Random.int (Array.length alphabet) in
alphabet.(k) )
in
Hashtbl.add rooms room_id (Hashtbl.create 5);
room_id
let home_page_post request =
match%lwt Dream.form request with
| `Ok [] ->
let room_id = make_room () in
let url = Format.sprintf "/%s" room_id in
Dream.respond ~status:`See_Other
~headers:[ ("Location", url) ]
"a new room was made"
| invalid_form -> Util.handle_invalid_form invalid_form
let home_page_get request = Dream.html @@ Home.f request
let room request =
let room_id = Dream.param request "room_id" in
Dream.html @@ Room.f room_id request
let send room data =
Hashtbl.to_seq_values room |> List.of_seq
|> Lwt_list.iter_p (fun client -> Dream.send client data)
let forget_client room client_id = Hashtbl.remove room client_id
let handle_session request =
match Dream.session_field request "id" with
| None ->
let id = Uuidm.to_string (Uuidm.v4_gen App.random_state ()) in
let* () = Dream.invalidate_session request in
let* () = Dream.set_session_field request "id" id in
Lwt.return id
| Some id -> Lwt.return id
let handle_client request client =
let room_id = Dream.param request "room_id" in
let* id = handle_session request in
match Hashtbl.find_opt rooms room_id with
| None -> Dream.log "Error room not found" |> Lwt.return
| Some room ->
Hashtbl.add room id client;
let rec loop () =
match%lwt Dream.receive client with
| Some data ->
(* TODO check geo and catch marshal failure *)
let s = Scanf.sscanf data "%S" (fun s -> s) in
let pos_magic : Msg.Magic.t = Marshal.from_string s 0 in
let pos = Msg.Magic.to_pos pos_magic in
let msg : Msg.server_msg = (id, Msg.Magic.of_pos pos) in
let s = Marshal.to_string msg [] |> Format.sprintf "%S" in
let* () = send room s in
loop ()
| None ->
forget_client room id;
Dream.close_websocket client
in
loop ()
let () =
let logger = if App.log then Dream.logger else Fun.id in
Dream.run ~port:App.port
~error_handler:(Dream.error_template Util.error_template)
@@ logger @@ Dream.memory_sessions
@@ Dream.router
Dream.
[ get "/assets/**" (Dream.static ~loader:Util.asset_loader "")
; get "/" home_page_get
; post "/" home_page_post
; get "/:room_id" room
; get "/:room_id/ws" (fun request ->
Dream.websocket @@ handle_client request )
]

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(executable
(name dromloc)
(modules app content dromloc home util template room)
(libraries
uuidm
bos
caqti
caqti.blocking
caqti-driver-sqlite3
directories
dream
emoji
fpath
lambdasoup
lwt
msg
safepass
scfg
uri
tyxml
tyxml.functor
yojson)
(preprocess
(pps lwt_ppx)))
(library
(name msg)
(modules msg)
(libraries))
(rule
(target content.ml)
(deps
(source_tree content)
(file content/assets/js/client.js))
(action
(with-stdout-to
%{null}
(run ocaml-crunch -m plain content -o %{target}))))

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open Tyxml.Html
let f request =
let page_title = "Droloc" in
let about = div [ txt App.about ] in
let make_room =
let make_room_button =
button ~a:[ a_id "make_room_button" ] [ txt "Make Room" ]
in
div
[ form
~a:[ a_action "/"; a_method `Post ]
[ Util.csrf_tag request; make_room_button ]
]
in
let page = div [ about; make_room ] in
Template.render ~page_title ~scripts:[] page

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open Utils
open Brr
open Brr_io
let room_id =
let uri = Window.location G.window in
let path = Uri.path uri |> Jstr.to_string in
match List.rev @@ String.split_on_char '/' path with
| [] -> failwith "invalid uri"
| id :: _l -> id
let ws =
log "create websocket@\n";
let ws_url =
Format.sprintf "ws://localhost:3696/%s/ws" room_id |> Jstr.of_string
in
Websocket.create ws_url
(* TODO try to restart connection; pop a message/change of color if disctonected *)
(* listen for close event *)
let () =
let on_close _e = log "Websocket closed!@\n" in
Ev.listen Websocket.Ev.close on_close (Websocket.as_target ws)
let jv_to_pos : Geolocation.Pos.t -> Msg.pos =
fun o ->
let open Geolocation.Pos in
{ latitude = latitude o
; longitude = longitude o
; accuracy = accuracy o
; timestamp_ms = timestamp_ms o
}
(* send message on ws when it is open *)
let () =
let on_open _e =
let send jv_geo =
log "send msg ~~ @\n";
let msg : Msg.Magic.t = Msg.Magic.of_pos @@ jv_to_pos jv_geo in
let s = Marshal.to_string msg [] in
let s = Format.sprintf "%S" s |> Jstr.of_string in
Websocket.send_string ws s;
log "msg was send to websocket ~~ @\n";
()
in
let _watch_id = Geo.watch_geolocation send in
()
in
Ev.listen Ev.open' on_open (Websocket.as_target ws)
module Camel = struct
open Leaflet
type t = [ `Marker ] Layer.t
let friends : (string, t) Hashtbl.t = Hashtbl.create 5
let latlng : Msg.pos -> Latlng.t =
fun pos -> Latlng.create pos.latitude pos.longitude
let create : Msg.pos -> t =
fun pos ->
log "Camel.create@\n";
(* TODO size/ better icon / make it rotate on direction *)
let html =
Format.sprintf {|<div class="marker">%s</div>|} Emoji.camel |> Option.some
in
let icon = Icon.create_div ~html ~bg_pos:None [] in
let layer = Layer.create_marker (latlng pos) [ Icon icon ] in
Layer.add_to Geo.map layer;
layer
let move_to : Msg.pos -> t -> unit =
fun geo dromedary -> Layer.set_latlng (latlng geo) dromedary
let kill_friend : t -> unit = fun dromedary -> Layer.remove dromedary
let find_opt = Hashtbl.find_opt friends
let add id pos = Hashtbl.add friends id (create pos)
end
(* listen on websocket message event *)
let () =
let on_message m =
log " on_message@\n";
let (id, magic_pos) : Msg.server_msg =
let data = Message.Ev.data (Ev.as_type m) |> Jstr.to_string in
let s = Scanf.sscanf data "%S" (fun s -> s) in
Marshal.from_string s 0
in
log "un-marshaled message from server @\n";
let pos = Msg.Magic.to_pos magic_pos in
match Camel.find_opt id with
| None -> Camel.add id pos
| Some friend -> Camel.move_to pos friend
in
Ev.listen Message.Ev.message on_message (Websocket.as_target ws)

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(executable
(name client)
(modules client)
(libraries brr emoji leaflet geo msg utils)
(modes js))
(library
(name utils)
(modules utils)
(libraries brr))
(library
(name geo)
(modules geo)
(libraries brr leaflet utils))

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open Utils
open Leaflet
let map =
let options = Jv.obj [| ("zoomControl", Jv.of_bool false) |] in
Map.create_on ~options "map"
let () =
let osm_layer = Layer.create_tile_osm None in
Layer.add_to map osm_layer
let storage = Brr_io.Storage.local Brr.G.window
let save_view () =
let latlng = Map.get_center map in
let zoom = Map.get_zoom map |> Jstr.of_int in
let lat = Latlng.lat latlng |> Jstr.of_float in
let lng = Latlng.lng latlng |> Jstr.of_float in
match Brr_io.Storage.set_item storage (Jstr.v "lat") lat with
| (exception Jv.Error _) | Error _ -> failwith "can't set latlng storage"
| Ok () -> (
match Brr_io.Storage.set_item storage (Jstr.v "lng") lng with
| (exception Jv.Error _) | Error _ -> failwith "can't set latlng storage"
| Ok () -> (
match Brr_io.Storage.set_item storage (Jstr.v "zoom") zoom with
| (exception Jv.Error _) | Error _ -> failwith "can't set zoom storage"
| Ok () -> () ) )
(* wrap Leaflet.Map.set_view to save last position to storage *)
let set_view latlng ~zoom =
log "set view wrapper@\n";
(*we need to wrap coordinates so we don't drift into a parralel universe and lose track of markers :^) *)
(* todo: use `worldCopyJump` option on map creation *)
let wrapped_latlng = Map.wrap_latlng latlng map in
Map.set_view wrapped_latlng ~zoom map;
save_view ()
(* set map's view *)
(* try to set map's view to last position viewed by using web storage *)
let () =
log "setting view@\n";
let lat = Brr_io.Storage.get_item storage (Jstr.v "lat") in
let lng = Brr_io.Storage.get_item storage (Jstr.v "lng") in
let zoom = Brr_io.Storage.get_item storage (Jstr.v "zoom") in
match (lat, lng, zoom) with
| Some lat, Some lng, Some zoom ->
let lat = Jstr.to_float lat in
let lng = Jstr.to_float lng in
let zoom =
match Jstr.to_int zoom with
| None -> failwith "view storage bug"
| Some zoom -> Some zoom
in
let latlng = Latlng.create lat lng in
set_view latlng ~zoom
| _ ->
let latlng = Latlng.create 51.505 (-0.09) in
set_view latlng ~zoom:(Some 13)
let () =
log "add on (move/zoom)end event@\n";
let on_moveend _event =
log "on moveend event@\n";
save_view ()
in
let on_zoomend _event =
log "on zoomend event@\n";
save_view ()
in
Map.on Event.Move_end on_moveend map;
Map.on Event.Zoom_end on_zoomend map
let watch_geolocation f =
let open Brr_io.Geolocation in
log "geolocalize@\n";
let update_location geo =
log "update_location@\n";
match geo with
| Error e ->
(* todo: popup error message for user *)
log "geolocation failure: %s@\n" @@ Jstr.to_string @@ Error.message e
| Ok geo ->
(* monitors geolocation update with f *)
f geo;
(* set view *)
let lat = Pos.latitude geo in
let lng = Pos.longitude geo in
let latlng = Latlng.create lat lng in
set_view latlng ~zoom:None
(* TODO update/make camel marker on the map *)
in
(* watch l ~opts f monitors the position of l determined with opts by periodically calling f. Stop watching by calling unwatch with the returned identifier. *)
let l = of_navigator Brr.G.navigator in
let opts = opts ~high_accuracy:true () in
watch l ~opts update_location

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open Brr
let log = Format.printf
let find_by_id_opt id = Document.find_el_by_id G.document (Jstr.of_string id)
let find_by_id id =
match find_by_id_opt id with
| None -> failwith (Format.sprintf "element `%s` not found" id)
| Some el -> el
let add_event_to_class event name handler =
let el_list = El.find_by_class (Jstr.of_string name) in
List.iter (fun el -> Ev.listen event (handler el) (El.as_target el)) el_list

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(* :^) *)
type pos =
{ latitude : float
; longitude : float
; accuracy : float
; timestamp_ms : float
}
let pos_to_string pos =
Format.sprintf
{|
{ latitude = %f
; longitude = %f
; accuracy = %f
; timestamp_ms = %f
}|}
pos.latitude pos.longitude pos.accuracy pos.timestamp_ms
module Magic : sig
type t
val of_pos : pos -> t
val to_pos : t -> pos
end = struct
open Bigarray
type t = (float, float64_elt, c_layout) Array1.t
let of_pos { latitude; longitude; accuracy; timestamp_ms } =
let arr = Array1.create Float64 C_layout 4 in
Array1.set arr 0 latitude;
Array1.set arr 1 longitude;
Array1.set arr 2 accuracy;
Array1.set arr 3 timestamp_ms;
arr
let to_pos arr =
{ latitude = Array1.get arr 0
; longitude = Array1.get arr 1
; accuracy = Array1.get arr 2
; timestamp_ms = Array1.get arr 3
}
end
type client_msg = Magic.t
type server_msg = string * Magic.t

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open Tyxml.Html
let f room_id _request =
let page_title = Format.sprintf "Room lobby %s" room_id in
(*
let room_url = Format.sprintf "%s/%s" App.hostname room_id in
let welcome_msg =
div [
txt
(Format.sprintf
"Room - %s - was made. You can share this room with this link [ %s ] "
room_id room_url )
]
in
*)
let map_div = div ~a:[ a_id "map" ] [] in
(* TODO add js script
<script type="text/javascript" src="/assets/js/babillard.js" defer="defer"></script>
*)
let js =
script
~a:
[ a_mime_type "text/javascript"
; a_src "/assets/js/client.js"
; a_defer ()
]
(txt "")
in
Template.render ~page_title ~scripts:[ js ] map_div

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open Tyxml
let render ~page_title ~scripts content =
let open Html in
let head =
head
(title (txt page_title))
( [ link ~rel:[ `Icon ] ~href:"/assets/img/favicon.png" ()
; link ~rel:[ `Stylesheet ] ~href:"/assets/css/style.css" ()
; link ~rel:[ `Stylesheet ] ~href:"/assets/css/leaflet.css" ()
]
@ scripts )
in
let body = body [ main [ content ] ] in
let page = html head body in
Format.asprintf "%a@." (pp ~indent:true ()) page

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let handle_invalid_form = function
| `Ok _ -> Dream.respond ~status:`Bad_Request "invalid form"
| `Many_tokens _ | `Missing_token _ | `Invalid_token _ | `Wrong_session _
| `Expired _ | `Wrong_content_type ->
Dream.empty `Bad_Request
let asset_loader _root path _request =
match Content.read ("assets/" ^ path) with
| None -> Dream.empty `Not_Found
| Some asset ->
(* TODO cache-control: ~headers:[ ("Cache-Control", "max-age=151200") ] *)
Dream.respond asset
let error_template _error _debug_info response =
let open Lwt.Syntax in
let status = Dream.status response in
let code = Dream.status_to_int status in
(*TODO improve: can't use template.elm.html because it needs "request" *)
let* body = Dream.body response in
let reason =
if String.equal "" body then Dream.status_to_string status else body
in
Dream.set_body response (Format.sprintf "%d: %s" code reason);
Lwt.return response
let csrf_tag request =
let open Tyxml.Html in
let token = Dream.csrf_token request in
input ~a:[ a_name "dream.csrf"; a_input_type `Hidden; a_value token ] ()

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(test
(name test)
(modules test))

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let () = assert true (* TODO *)