implement static cache

.dev-log

@@ -1,6 +1,15 @@
+2024/01/15
+- cache static logic
+- START HERE:
+  - test caching everywhere
+  - add content in atom
+
 2024/01/14
 - fix stylesheets
--  
+- update all url references
+- START HERE:
+  - add content in atom
+  - cache static logic
 
 2024/01/13
 - update atom-table-writing

.gitignore

@@ -3,5 +3,6 @@
 sorrel/**
 deploy-dir/**
 tool/**
+static/**
 publish-test/**
 todo.txt

oxaliq.net.rkt

@@ -31,98 +31,180 @@
    '()
    (list content)))
 
+;; bound path builders
+;; extension is always #".txt" because source files are not well-formed racket,
+;; but must be read and evaluated in this namespace
+(define (make-path-no-param root-folder extension)
+  (lambda (t)
+    (path-add-extension
+     (if (and (non-empty-string? t) (not (eq? t "root")))
+         (build-path root-folder t "index")
+         (build-path root-folder "index"))
+     extension)))
+
+(define (make-path-id-param root-folder extension)
+  (lambda (t id)
+    (path-add-extension
+     (build-path root-folder
+                 (if (eq? t "root")
+                     (if (eq? id "")
+                         ;; if "root/" something weird has happened
+                         "index"
+                         ;; allows for loading "/about" and other root resources
+                         (~a id))
+                     (if
+                      ;; if url has trailing backslash, id will be an empty string
+                      ;; and should return index for that type
+                      (or (not (string? id))
+                          (non-empty-string? id))
+                      (build-path t (~a id))
+                      (build-path t "index"))))
+     extension)))
+
+(define (make-source-path-no-param t)
+  ((make-path-no-param "source" #".txt") t))
+
+(define (make-source-path-id-param t id)
+  ((make-path-id-param "source" #".txt") t id))
+
+(define (make-static-path-no-param api-type t)
+  (let ([root-folder 
+         (cond
+           [(eq? api-type 'httpx) "static/fragment"]
+           [(eq? api-type 'page) "static/page"]
+           [else (error "api-type ~a not recognized" api-type)])])
+         ((make-path-no-param root-folder #".html") t)))
+
+(define (make-static-path-id-param api-type t id)
+    (let ([root-folder 
+         (cond
+           [(eq? api-type 'httpx) "static/fragment"]
+           [(eq? api-type 'page) "static/page"]
+           [else (error "api-type ~a not recognized" api-type)])])
+      ((make-path-id-param root-folder #".html") t id)))
+
+
+
+(define (static-file-res static-path)
+  (string->bytes/utf-8 (file->string static-path)))
+
+;; wrapper for resource-processor
+(define (wrapper-for-resource-processor static-path res-processor)
+  (if (not (file-exists? static-path))
+      (html-response (static-file-res static-path))
+      (res-processor)))
+
+;; write static-file
+;; return data that was written
+(define (write-static-file static-path)
+  (lambda (data)
+    (let ([out-port (open-output-file static-path #:exists 'error)])
+      (if (port-try-file-lock? out-port 'exclusive)
+          (begin
+            (display data out-port)
+            (port-file-unlock out-port)
+            (close-output-port out-port)
+            data)
+          (error "couldn't obtain file lock on ~a" out-port)))))
+                                                                    
+
+(define (404-handler api-type)
+  (cond
+    [(eq? api-type 'httpx) (404-hx)]
+    [(eq? api-type 'page) (404-page)]
+    [else (error "api-type ~a not recognized" api-type)]))
+
 
 ;; takes a resource-type (corresponds to the REST resource and the system path or
 ;; an index resource in the source path)
 ;; and a resource-processor (-> file-handle . http-response)
 ;; and returns a valid html-response irrespective of hx/ type fragment of html or full page
 (define respond-resource-with-processor 
-  (lambda (type resource-processor)
+  (lambda (api-type res-type resource-processor)
-    ;; bound path builders
-    ;; extension is always #".txt" because source files are not well-formed racket,
-    ;; but must be read and evaluated in this namespace
-    (define (make-res-path-no-param t)
-           (path-add-extension
-                            (if (and (non-empty-string? t) (not (eq? t "root")))
-                                (build-path "source" t "index")
-                                (build-path "source" "index" ))
-                            #".txt"))
-
-    (define (make-res-path-id-param t id)
-      (path-add-extension
-       (build-path "source" (if (eq? t "root")
-                                (if (eq? id "")
-                                    ;; if "root/" something weird has happened
-                                    "index"
-                                    ;; allows for loading "/this" and other root resources
-                                    (~a id))
-                                (if
-                                 ;; if url has trailing backslash, id will be an empty string
-                                 ;; and should return index for that type
-                                 (or (not (string? id))
-                                     (non-empty-string? id))
-                                 (build-path t (~a id))
-                                 (build-path t "index"))))
-      #".txt"))
     ;; this lambda will be called by dispatch-rules
     ;; (req) is the request object
     (case-lambda
-      [(req) (let ([res-path (make-res-path-no-param type)])
+      [(req)
+       (let ([static-path (make-static-path-no-param api-type res-type)])
+         (if (file-exists? static-path)
+             (html-response (static-file-res static-path))
+             (let ([res-path (make-source-path-no-param res-type)])
                (if (file-exists? res-path)
-                   (html-response (resource-processor res-path))
+                   (html-response
-                   (html-response (resource-processor "source/not-found.txt"))))]
+                    (resource-processor res-path (write-static-file static-path)))
+                   (404-handler api-type)))))]
       ;; (req id) is (request object . url parameter)
-      [(req id) (let ([res-path (make-res-path-id-param type id)])
+      [(req id)
-                  (if (file-exists? res-path)
+       (let ([static-path (make-static-path-id-param api-type res-type id)])
-                      (html-response (resource-processor res-path))
+         (if (file-exists? static-path)
-                      (html-response (resource-processor "source/not-found.txt"))))])))
+             (html-response (static-file-res static-path))
-
+             (let ([res-path (make-source-path-id-param res-type id)])
+               (if (file-exists? res-path)
+                   (html-response (resource-processor res-path (write-static-file static-path)))
+                   (404-handler api-type)))))])))
 ;;; httpx
 ;; sends only the requested resource
-(define (xexpr-file->xml file)
+(define (xexpr-file->res file static-write)
   (string->bytes/utf-8
-   (xexpr->string (read (open-input-file file)))))
+   (static-write (xexpr-file->xml file))))
 
+(define (xexpr-file->xml file)
+  (xexpr->string (read (open-input-file file))))
 
-(define (404-hx request)
+(define (404-hx)
-  (html-response (xexpr-file->xml "source/not-found.txt")))
+  (let ([static-path "static/fragment/not-found.html"])
+    (html-response
+     (if (file-exists? static-path)
+         (static-file-res static-path)
+         (xexpr-file->res "source/not-found.txt" (write-static-file static-path))))))
 
 
 (define-values (httpx-app reverse-httpx-uri)
   (dispatch-rules
-   [("hx" "home") (respond-resource-with-processor "root" xexpr-file->xml)]
+   [("hx" "home") (respond-resource-with-processor 'httpx "root" xexpr-file->res)]
-   [("hx" "settled") (respond-resource-with-processor "settled" xexpr-file->xml)]
+   [("hx" "settled") (respond-resource-with-processor 'httpx "settled" xexpr-file->res)]
-   [("hx" "settled" (integer-arg)) (respond-resource-with-processor "settled" xexpr-file->xml)]
+   [("hx" "settled" (integer-arg)) (respond-resource-with-processor 'httpx "settled" xexpr-file->res)]
-   [("hx" "unsettled") (respond-resource-with-processor "unsettled" xexpr-file->xml)]
+   [("hx" "unsettled") (respond-resource-with-processor 'httpx "unsettled" xexpr-file->res)]
-   [("hx" "unsettled" (integer-arg)) (respond-resource-with-processor "unsettled" xexpr-file->xml)]
+   [("hx" "unsettled" (integer-arg)) (respond-resource-with-processor 'httpx "unsettled" xexpr-file->res)]
-   [("hx" "tagged") (respond-resource-with-processor "tagged" xexpr-file->xml)]
+   [("hx" "tagged") (respond-resource-with-processor 'httpx "tagged" xexpr-file->res)]
-   [("hx" "tagged" (string-arg)) (respond-resource-with-processor "tagged" xexpr-file->xml)]
+   [("hx" "tagged" (string-arg)) (respond-resource-with-processor 'httpx "tagged" xexpr-file->res)]
-   [("hx" (string-arg)) (respond-resource-with-processor "root" xexpr-file->xml)]
+   [("hx" (string-arg)) (respond-resource-with-processor 'httpx "root" xexpr-file->res)]
-   [else 404-hx]))
+   [else (lambda (req) (404-hx))]))
 
 ;;; page-app
 ;; constructs entire page for each response
-(define (make-page resource)
+(define (make-page resource static-write)
   (string->bytes/utf-8
-   (xexpr->string
+   (static-write
+    (fragment->page resource))))
+
+(define (fragment->page resource)
+  (xexpr->string
     `(html ((lang "en"))
            ,(read (open-input-file "source/head.txt"))
            (body
             ,(read (open-input-file "source/header.txt"))
-            (main ,(read (open-input-file resource))))))))
+            (main ,(read (open-input-file resource)))))))
+
+(define (404-page)
+  (let ([static-path "static/page/not-found.html"])
+    (html-response
+     (if (file-exists? static-path)
+         (static-file-res static-path)
+         (make-page "source/not-found.txt" (write-static-file static-path))))))
 
 (define-values (page-app reverse-page-uri)
   (dispatch-rules
-   [("") (respond-resource-with-processor "" make-page)]
+   [("") (respond-resource-with-processor 'page "" make-page)]
-   [("home") (respond-resource-with-processor "" make-page)]
+   [("home") (respond-resource-with-processor 'page  "" make-page)]
-   [("settled") (respond-resource-with-processor "settled" make-page)]
+   [("settled") (respond-resource-with-processor 'page  "settled" make-page)]
-   [("settled" (integer-arg)) (respond-resource-with-processor "settled" make-page)]
+   [("settled" (integer-arg)) (respond-resource-with-processor 'page "settled" make-page)]
-   [("unsettled") (respond-resource-with-processor "unsettled" make-page)]
+   [("unsettled") (respond-resource-with-processor 'page "unsettled" make-page)]
-   [("unsettled" (integer-arg)) (respond-resource-with-processor "unsettled" make-page)]
+   [("unsettled" (integer-arg)) (respond-resource-with-processor 'page  "unsettled" make-page)]
-   [("tagged") (respond-resource-with-processor "tagged" make-page)]
+   [("tagged") (respond-resource-with-processor 'page "tagged" make-page)]
-   [("tagged" (string-arg)) (respond-resource-with-processor "tagged" make-page)]
+   [("tagged" (string-arg)) (respond-resource-with-processor 'page "tagged" make-page)]
-   [((string-arg)) (respond-resource-with-processor "root" make-page)]
+   [((string-arg)) (respond-resource-with-processor 'page "root" make-page)]
-   [else not-found]))
+   [else (lambda (req) (404-page))]))
    
   
 
@@ -152,8 +234,7 @@
 
 ;;; 404
 (define (not-found request)
-  (html-response (make-page "source/not-found.txt")))
+  (lambda (req) ((404-page))))
-
 
 ;;; server
 (define stop

static/fragment/root/not-found.html

@@ -1 +0,0 @@
-<section><h1>404</h1><p>hey, i couldn't find that. could ya try something else maybe?</p></section>

static/page/root/index.html

@@ -1,53 +0,0 @@
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><meta name="ROBOTS" content="NOINDEX, NOFOLLOW"/><title>learning and making things</title><meta name="author" content="sorrel"/><meta name="description" content="yr place for sorrel on the world wide web"/><meta name="viewport" content="width=device-width, initial-scale=1"/><meta name="ascii-art-description" content="it's a crop of the work 'Oxalis acetosella', Otto Wilhelm Thomé
-(1885) run through the ascii-art generation tool on https://www.asciiart.eu/"/><link rel="stylesheet" href="/static/style/styles.css"/><style>
-p.ascii {
-  font-family: 'Courier New', Courier, monospace;
-  font-size: 8px;
-  white-space: pre;
-  margin: 0;
-}
-p.ascii.but-normal-size {
-  font-size: medium;
-}</style><script src="/static/script/htmx.min.js" defer=""></script></head><body><header><div class="banner" hx-get="/hx/home" hx-target="main" hx-swap="innerHTML"><p class="ascii">▒▓░          <a href="/">home</a>                                                ░░▒    ▒▒▓█▒                   ░▒                
-░▒▒░▓▓                                                                  ▒▒▒▒▒▒▓█                   ▒▓               
-▒▒▓▓░▒▓                                                                     ▓█▓▓                   ░▓               
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-░▒▒▓▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▒▒▒▒▒▓          ▓░         ░▓▒       ░▒░▒             ▓▒       ▓  ▒                       ▓▓▓▓░
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- ▓▒░ ▓▒▒▒█▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▒▒▒       ▒░                  ▓▒▓            ▒▒     ▒ ░                                 
- ░▒▓ ▓▒▒▒▒▒▓▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▒▓▒▒▒      ▒░▓                 ░▒░▒           ░░                                         
-  ▒▓ ░▒▒▒▒▒▓▒▒▓▒▒▒▒▒▒▒▒▒▒▓▒▓▓▓▒▒       ▓░                 ░▒            ░▓                                          </p></div><nav><a href="/about" hx-get="/hx/about" hx-target="main" hx-swap="innerHTML">about sorrel (the bitch who made this)</a><a href="/unsettled" hx-get="/hx/unsettled" hx-target="main" hx-swap="innerHTML">unsettled thoughts (something like a blog)</a><a href="/settled" hx-get="/hx/settled" hx-target="main" hx-swap="innerHTML">"settled" thoughts (projects built/in progress)</a><a href="/feed.atom">þͤ olde rss</a></nav></header><main aria-live="polite"><article><noscript><span class="noscript"><p>hey! yr not letting yr browser execute javascript served by my page.</p><p>that's cool!</p><p>browser (by google?) as arbitrary code execution platform is one of the
-      weird, regrettable (at least as it is currently implemented)
-      consequences of our political economy.</p><p>anyway, feel free to browse! yr experience won't be much different,
-      you'll just get bigger html blob.</p><p>the only js i deliver is <a href="https://htmx.org">this little REST tool called htmx</a> if you want to see what that's about.</p><p>o! and if you want to hear/read <a href="/tagged/javascript">what i have to say about javascript</a> you could do that maybe</p><p>/noscript</p></span></noscript><p>hey! i'm sorrel.</p><p>(called like the plant up there)</p><p>this is my new-fangled website computer page on the world wide web. i had
-     a nice time building this little thing <span class="hx-target"><a href="/this" hx-get="/hx/this" hx-target="closest span" hx-swap="innerHTML">(how i build this little page.)</a></span></p><p> i hope you have  a nice time looking at things here.</p><p class="ascii but-normal-size">︿︿
- 〰</p></article></main></body></html>

static/page/root/not-found.html

@@ -1,48 +0,0 @@
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><meta name="ROBOTS" content="NOINDEX, NOFOLLOW"/><title>learning and making things</title><meta name="author" content="sorrel"/><meta name="description" content="yr place for sorrel on the world wide web"/><meta name="viewport" content="width=device-width, initial-scale=1"/><meta name="ascii-art-description" content="it's a crop of the work 'Oxalis acetosella', Otto Wilhelm Thomé
-(1885) run through the ascii-art generation tool on https://www.asciiart.eu/"/><link rel="stylesheet" href="/static/style/styles.css"/><style>
-p.ascii {
-  font-family: 'Courier New', Courier, monospace;
-  font-size: 8px;
-  white-space: pre;
-  margin: 0;
-}
-p.ascii.but-normal-size {
-  font-size: medium;
-}</style><script src="/static/script/htmx.min.js" defer=""></script></head><body><header><div class="banner" hx-get="/hx/home" hx-target="main" hx-swap="innerHTML"><p class="ascii">▒▓░          <a href="/">home</a>                                                ░░▒    ▒▒▓█▒                   ░▒                
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-▓▓▓▒▓▒▒▒▒▓▒▒▒▒▓                    ▒▒░       ▒▓▓▓▓▓▓▓▓▓█▓ ▓▒  ░ ░             ░▒            ░░  ▒     █▓▓▓▓▓▓▓▓▓▓▓▓▓
-███▒▒▒▒▒▓░                         ▒▓░░       ▒▓▓▓▓▓▓▓▓   ▓▒░ ▒░             ░▒          ░  ▒          ▓▓▓▓▓▓▓▓▓▓▓▓▓
- █▒▓▓      ▒▒▓▓▓▓▓▓▓▒               ▒░▓       ▒▒▓▓▓▓▓▒    ▒▒░  ▒            ▒▒           ▒               ░▓▓▓▓▓▓▓▓▓▓
-░▒▒▓▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▒▒▒▒▒▓          ▓░         ░▓▒       ░▒░▒             ▓▒       ▓  ▒                       ▓▓▓▓░
-░▓▒▓▓▒▓▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▒▒▒▒▒▓▒▓       ░░▓                  ▒▒░ ▒           ▓░      ▒                                 
- ▓▒░ ▓▒▒▒█▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▒▒▒       ▒░                  ▓▒▓            ▒▒     ▒ ░                                 
- ░▒▓ ▓▒▒▒▒▒▓▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▒▓▒▒▒      ▒░▓                 ░▒░▒           ░░                                         
-  ▒▓ ░▒▒▒▒▒▓▒▒▓▒▒▒▒▒▒▒▒▒▒▓▒▓▓▓▒▒       ▓░                 ░▒            ░▓                                          </p></div><nav><a href="/about" hx-get="/hx/about" hx-target="main" hx-swap="innerHTML">about sorrel (the bitch who made this)</a><a href="/unsettled" hx-get="/hx/unsettled" hx-target="main" hx-swap="innerHTML">unsettled thoughts (something like a blog)</a><a href="/settled" hx-get="/hx/settled" hx-target="main" hx-swap="innerHTML">"settled" thoughts (projects built/in progress)</a><a href="/feed.atom">þͤ olde rss</a></nav></header><main aria-live="polite"><section><h1>404</h1><p>hey, i couldn't find that. could ya try something else maybe?</p></section></main></body></html>