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server: added loading page while model loading #9401

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dfe31e0
Adding loading page for '/' server requests
VJHack Sep 10, 2024
dab4b49
set content when model is loading
VJHack Sep 11, 2024
19bc863
removed loading html file
VJHack Sep 11, 2024
125737a
updated cmakelist
VJHack Sep 11, 2024
3dd73ca
updated makefile
VJHack Sep 11, 2024
1ff1aa7
cleaned up whitespace
VJHack Sep 11, 2024
9d3424a
cleanup for PR removed error
VJHack Sep 11, 2024
5ca179c
updated server test to handle 503 HTML
VJHack Sep 12, 2024
161bf22
updated server test to handle 503 HTML
VJHack Sep 12, 2024
8b7daaa
ca†ch 503 before parsing json
VJHack Sep 13, 2024
daf64fc
revert test
VJHack Sep 13, 2024
cb13382
account for both api and web browser requests
VJHack Sep 13, 2024
42abdd0
precommit corrections
VJHack Sep 13, 2024
69c97bb
Merge branch 'ggerganov:master' into master
VJHack Sep 13, 2024
cd80fce
eol fix
VJHack Sep 13, 2024
e51eb59
revert changes to pre-commit
VJHack Sep 13, 2024
df9f167
removed print statement
VJHack Sep 13, 2024
739ea75
made loading message more descriptive
VJHack Sep 13, 2024
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1 change: 1 addition & 0 deletions Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -1430,6 +1430,7 @@ llama-server: \
examples/server/theme-snowstorm.css.hpp \
examples/server/index.html.hpp \
examples/server/index-new.html.hpp \
examples/server/loading.html.hpp \
examples/server/index.js.hpp \
examples/server/completion.js.hpp \
examples/server/system-prompts.js.hpp \
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1 change: 1 addition & 0 deletions examples/server/CMakeLists.txt
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Expand Up @@ -25,6 +25,7 @@ set(PUBLIC_ASSETS
theme-snowstorm.css
index.html
index-new.html
loading.html
index.js
completion.js
system-prompts.js
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12 changes: 12 additions & 0 deletions examples/server/public/loading.html
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@@ -0,0 +1,12 @@
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="refresh" content="5">
</head>
<body>
<div id="loading">
The model is loading. Please wait.<br/>
The user interface will appear soon.
</div>
</body>
</html>
19 changes: 16 additions & 3 deletions examples/server/server.cpp
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Expand Up @@ -23,6 +23,7 @@
#include "theme-snowstorm.css.hpp"
#include "index.html.hpp"
#include "index-new.html.hpp"
#include "loading.html.hpp"
#include "index.js.hpp"
#include "completion.js.hpp"
#include "system-prompts.js.hpp"
Expand Down Expand Up @@ -2591,11 +2592,22 @@ int main(int argc, char ** argv) {
return false;
};

auto middleware_server_state = [&res_error, &state](const httplib::Request &, httplib::Response & res) {
auto middleware_server_state = [&res_error, &state](const httplib::Request & req, httplib::Response & res) {
server_state current_state = state.load();
if (current_state == SERVER_STATE_LOADING_MODEL) {
res_error(res, format_error_response("Loading model", ERROR_TYPE_UNAVAILABLE));
return false;
httplib::Request & modified_req = (httplib::Request &) req;
const char* path_c = modified_req.path.c_str();
int path_c_len = strlen(path_c);
char last_five[6];
strcpy(last_five, path_c + (path_c_len -5));

if ((strcmp(path_c, "/") == 0) || (strcmp(last_five, ".html") == 0)) {
modified_req.path = "/loading.html";
}
else {
res_error(res, format_error_response("Loading model", ERROR_TYPE_UNAVAILABLE));
return false;
}
}
return true;
};
Expand Down Expand Up @@ -3162,6 +3174,7 @@ int main(int argc, char ** argv) {
svr->Get("/theme-polarnight.css", handle_static_file(theme_polarnight_css, theme_polarnight_css_len, "text/css; charset=utf-8"));
svr->Get("/theme-snowstorm.css", handle_static_file(theme_snowstorm_css, theme_snowstorm_css_len, "text/css; charset=utf-8"));
svr->Get("/index-new.html", handle_static_file(index_new_html, index_new_html_len, "text/html; charset=utf-8"));
svr->Get("/loading.html", handle_static_file(loading_html, loading_html_len, "text/html; charset=utf-8"));
svr->Get("/system-prompts.js", handle_static_file(system_prompts_js, system_prompts_js_len, "text/javascript; charset=utf-8"));
svr->Get("/prompt-formats.js", handle_static_file(prompt_formats_js, prompt_formats_js_len, "text/javascript; charset=utf-8"));

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