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diff --git a/06-www/files/licenses/agpl-3.0.txt b/06-www/files/licenses/agpl-3.0.txt
new file mode 100644
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--- /dev/null
+++ b/06-www/files/licenses/agpl-3.0.txt
@@ -0,0 +1,661 @@
+ GNU AFFERO GENERAL PUBLIC LICENSE
+ Version 3, 19 November 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc.
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The GNU Affero General Public License is a free, copyleft license for
+software and other kinds of works, specifically designed to ensure
+cooperation with the community in the case of network server software.
+
+ The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
+our General Public Licenses are intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+ Developers that use our General Public Licenses protect your rights
+with two steps: (1) assert copyright on the software, and (2) offer
+you this License which gives you legal permission to copy, distribute
+and/or modify the software.
+
+ A secondary benefit of defending all users' freedom is that
+improvements made in alternate versions of the program, if they
+receive widespread use, become available for other developers to
+incorporate. Many developers of free software are heartened and
+encouraged by the resulting cooperation. However, in the case of
+software used on network servers, this result may fail to come about.
+The GNU General Public License permits making a modified version and
+letting the public access it on a server without ever releasing its
+source code to the public.
+
+ The GNU Affero General Public License is designed specifically to
+ensure that, in such cases, the modified source code becomes available
+to the community. It requires the operator of a network server to
+provide the source code of the modified version running there to the
+users of that server. Therefore, public use of a modified version, on
+a publicly accessible server, gives the public access to the source
+code of the modified version.
+
+ An older license, called the Affero General Public License and
+published by Affero, was designed to accomplish similar goals. This is
+a different license, not a version of the Affero GPL, but Affero has
+released a new version of the Affero GPL which permits relicensing under
+this license.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+
+ TERMS AND CONDITIONS
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+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+
+ Copyright (C)
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see .
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source. For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code. There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+.
diff --git a/06-www/files/licenses/gpl-3.0.txt b/06-www/files/licenses/gpl-3.0.txt
new file mode 100644
index 0000000..f288702
--- /dev/null
+++ b/06-www/files/licenses/gpl-3.0.txt
@@ -0,0 +1,674 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc.
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+ The licenses for most software and other practical works are designed
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+you modify it: responsibilities to respect the freedom of others.
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+ For example, if you distribute copies of such a program, whether
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+ Developers that use the GNU GPL protect your rights with two steps:
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+ Some devices are designed to deny users access to install or run
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+ The precise terms and conditions for copying, distribution and
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+ "This License" refers to version 3 of the GNU General Public License.
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+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+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
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+ If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+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
+author or copyright holder as a result of your choosing to follow a
+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, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR 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,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+
+ Copyright (C)
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see .
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ Copyright (C)
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+.
diff --git a/06-www/files/selfie.jpg b/06-www/files/selfie.jpg
new file mode 100644
index 0000000..500071a
Binary files /dev/null and b/06-www/files/selfie.jpg differ
diff --git a/06-www/files/style.css b/06-www/files/style.css
new file mode 100644
index 0000000..7a64dac
--- /dev/null
+++ b/06-www/files/style.css
@@ -0,0 +1,536 @@
+/* MVP.css v1.14 - https://github.com/andybrewer/mvp */
+
+:root {
+ --active-brightness: 0.85;
+ --border-radius: 5px;
+ --box-shadow: 2px 2px 10px;
+ --color-accent: #118bee15;
+ --color-bg: #fff;
+ --color-bg-secondary: #e9e9e9;
+ --color-link: #118bee;
+ --color-secondary: #920de9;
+ --color-secondary-accent: #920de90b;
+ --color-shadow: #f4f4f4;
+ --color-table: #118bee;
+ --color-text: #000;
+ --color-text-secondary: #999;
+ --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
+ --hover-brightness: 1.2;
+ --justify-important: center;
+ --justify-normal: left;
+ --line-height: 1.5;
+ --width-card: 285px;
+ --width-card-medium: 460px;
+ --width-card-wide: 800px;
+ --width-content: 1080px;
+}
+
+@media (prefers-color-scheme: dark) {
+ :root[color-mode="user"] {
+ --color-accent: #0097fc4f;
+ --color-bg: #333;
+ --color-bg-secondary: #555;
+ --color-link: #0097fc;
+ --color-secondary: #e20de9;
+ --color-secondary-accent: #e20de94f;
+ --color-shadow: #bbbbbb20;
+ --color-table: #0097fc;
+ --color-text: #f7f7f7;
+ --color-text-secondary: #aaa;
+ }
+}
+
+html {
+ scroll-behavior: smooth;
+}
+
+@media (prefers-reduced-motion: reduce) {
+ html {
+ scroll-behavior: auto;
+ }
+}
+
+/* Layout */
+article aside {
+ background: var(--color-secondary-accent);
+ border-left: 4px solid var(--color-secondary);
+ padding: 0.01rem 0.8rem;
+}
+
+body {
+ background: var(--color-bg);
+ color: var(--color-text);
+ font-family: var(--font-family);
+ line-height: var(--line-height);
+ margin: 0;
+ overflow-x: hidden;
+ padding: 0;
+}
+
+footer,
+header,
+main {
+ margin: 0 auto;
+ max-width: var(--width-content);
+ padding: 3rem 1rem;
+}
+
+hr {
+ background-color: var(--color-bg-secondary);
+ border: none;
+ height: 1px;
+ margin: 4rem 0;
+ width: 100%;
+}
+
+section {
+ display: flex;
+ flex-wrap: wrap;
+ justify-content: var(--justify-important);
+}
+
+section img,
+article img {
+ max-width: 100%;
+}
+
+section pre {
+ overflow: auto;
+}
+
+section aside {
+ border: 1px solid var(--color-bg-secondary);
+ border-radius: var(--border-radius);
+ box-shadow: var(--box-shadow) var(--color-shadow);
+ margin: 1rem;
+ padding: 1.25rem;
+ width: var(--width-card);
+}
+
+section aside:hover {
+ box-shadow: var(--box-shadow) var(--color-bg-secondary);
+}
+
+[hidden] {
+ display: none;
+}
+
+/* Headers */
+article header,
+div header,
+main header {
+ padding-top: 0;
+}
+
+header {
+ text-align: var(--justify-important);
+}
+
+header a b,
+header a em,
+header a i,
+header a strong {
+ margin-left: 0.5rem;
+ margin-right: 0.5rem;
+}
+
+header nav img {
+ margin: 1rem 0;
+}
+
+section header {
+ padding-top: 0;
+ width: 100%;
+}
+
+/* Nav */
+nav {
+ align-items: center;
+ display: flex;
+ font-weight: bold;
+ justify-content: space-between;
+ margin-bottom: 7rem;
+}
+
+nav ul {
+ list-style: none;
+ padding: 0;
+}
+
+nav ul li {
+ display: inline-block;
+ margin: 0 0.5rem;
+ position: relative;
+ text-align: left;
+}
+
+/* Nav Dropdown */
+nav ul li:hover ul {
+ display: block;
+}
+
+nav ul li ul {
+ background: var(--color-bg);
+ border: 1px solid var(--color-bg-secondary);
+ border-radius: var(--border-radius);
+ box-shadow: var(--box-shadow) var(--color-shadow);
+ display: none;
+ height: auto;
+ left: -2px;
+ padding: .5rem 1rem;
+ position: absolute;
+ top: 1.7rem;
+ white-space: nowrap;
+ width: auto;
+ z-index: 1;
+}
+
+nav ul li ul::before {
+ /* fill gap above to make mousing over them easier */
+ content: "";
+ position: absolute;
+ left: 0;
+ right: 0;
+ top: -0.5rem;
+ height: 0.5rem;
+}
+
+nav ul li ul li,
+nav ul li ul li a {
+ display: block;
+}
+
+/* Typography */
+code,
+samp {
+ background-color: var(--color-accent);
+ border-radius: var(--border-radius);
+ color: var(--color-text);
+ display: inline-block;
+ margin: 0 0.1rem;
+ padding: 0 0.5rem;
+}
+
+details {
+ margin: 1.3rem 0;
+}
+
+details summary {
+ font-weight: bold;
+ cursor: pointer;
+}
+
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
+ line-height: var(--line-height);
+ text-wrap: balance;
+}
+
+mark {
+ padding: 0.1rem;
+}
+
+ol li,
+ul li {
+ padding: 0.2rem 0;
+}
+
+p {
+ margin: 0.75rem 0;
+ padding: 0;
+ width: 100%;
+}
+
+pre {
+ margin: 1rem 0;
+ max-width: var(--width-card-wide);
+ padding: 1rem 0;
+}
+
+pre code,
+pre samp {
+ display: block;
+ max-width: var(--width-card-wide);
+ padding: 0.5rem 2rem;
+ white-space: pre-wrap;
+}
+
+small {
+ color: var(--color-text-secondary);
+}
+
+sup {
+ background-color: var(--color-secondary);
+ border-radius: var(--border-radius);
+ color: var(--color-bg);
+ font-size: xx-small;
+ font-weight: bold;
+ margin: 0.2rem;
+ padding: 0.2rem 0.3rem;
+ position: relative;
+ top: -2px;
+}
+
+/* Links */
+a {
+ color: var(--color-link);
+ display: inline-block;
+ font-weight: bold;
+ text-decoration: underline;
+}
+
+a:active {
+ filter: brightness(var(--active-brightness));
+}
+
+a:hover {
+ filter: brightness(var(--hover-brightness));
+}
+
+a b,
+a em,
+a i,
+a strong,
+button,
+input[type="submit"] {
+ border-radius: var(--border-radius);
+ display: inline-block;
+ font-size: medium;
+ font-weight: bold;
+ line-height: var(--line-height);
+ margin: 0.5rem 0;
+ padding: 1rem 2rem;
+}
+
+button,
+input[type="submit"] {
+ font-family: var(--font-family);
+}
+
+button:active,
+input[type="submit"]:active {
+ filter: brightness(var(--active-brightness));
+}
+
+button:hover,
+input[type="submit"]:hover {
+ cursor: pointer;
+ filter: brightness(var(--hover-brightness));
+}
+
+a b,
+a strong,
+button,
+input[type="submit"] {
+ background-color: var(--color-link);
+ border: 2px solid var(--color-link);
+ color: var(--color-bg);
+}
+
+a em,
+a i {
+ border: 2px solid var(--color-link);
+ border-radius: var(--border-radius);
+ color: var(--color-link);
+ display: inline-block;
+ padding: 1rem 2rem;
+}
+
+article aside a {
+ color: var(--color-secondary);
+}
+
+/* Images */
+figure {
+ margin: 0;
+ padding: 0;
+}
+
+figure img {
+ max-width: 100%;
+}
+
+figure figcaption {
+ color: var(--color-text-secondary);
+}
+
+/* Forms */
+button:disabled,
+input:disabled {
+ background: var(--color-bg-secondary);
+ border-color: var(--color-bg-secondary);
+ color: var(--color-text-secondary);
+ cursor: not-allowed;
+}
+
+button[disabled]:hover,
+input[type="submit"][disabled]:hover {
+ filter: none;
+}
+
+form {
+ border: 1px solid var(--color-bg-secondary);
+ border-radius: var(--border-radius);
+ box-shadow: var(--box-shadow) var(--color-shadow);
+ display: block;
+ max-width: var(--width-card-wide);
+ min-width: var(--width-card);
+ padding: 1.5rem;
+ text-align: var(--justify-normal);
+}
+
+form header {
+ margin: 1.5rem 0;
+ padding: 1.5rem 0;
+}
+
+input,
+label,
+select,
+textarea {
+ display: block;
+ font-size: inherit;
+ max-width: var(--width-card-wide);
+}
+
+input[type="checkbox"],
+input[type="radio"] {
+ display: inline-block;
+}
+
+input[type="checkbox"]+label,
+input[type="radio"]+label {
+ display: inline-block;
+ font-weight: normal;
+ position: relative;
+ top: 1px;
+}
+
+input[type="range"] {
+ padding: 0.4rem 0;
+}
+
+input,
+select,
+textarea {
+ border: 1px solid var(--color-bg-secondary);
+ border-radius: var(--border-radius);
+ margin-bottom: 1rem;
+ padding: 0.4rem 0.8rem;
+}
+
+input[type="text"],
+textarea {
+ width: calc(100% - 1.6rem);
+}
+
+input[readonly],
+textarea[readonly] {
+ background-color: var(--color-bg-secondary);
+}
+
+label {
+ font-weight: bold;
+ margin-bottom: 0.2rem;
+}
+
+/* Popups */
+dialog {
+ border: 1px solid var(--color-bg-secondary);
+ border-radius: var(--border-radius);
+ box-shadow: var(--box-shadow) var(--color-shadow);
+ position: fixed;
+ top: 50%;
+ left: 50%;
+ transform: translate(-50%, -50%);
+ width: 50%;
+ z-index: 999;
+}
+
+/* Tables */
+table {
+ border: 1px solid var(--color-bg-secondary);
+ border-radius: var(--border-radius);
+ border-spacing: 0;
+ display: inline-block;
+ max-width: 100%;
+ overflow-x: auto;
+ padding: 0;
+ white-space: nowrap;
+}
+
+table td,
+table th,
+table tr {
+ padding: 0.4rem 0.8rem;
+ text-align: var(--justify-important);
+}
+
+table thead {
+ background-color: var(--color-table);
+ border-collapse: collapse;
+ border-radius: var(--border-radius);
+ color: var(--color-bg);
+ margin: 0;
+ padding: 0;
+}
+
+table thead th:first-child {
+ border-top-left-radius: var(--border-radius);
+}
+
+table thead th:last-child {
+ border-top-right-radius: var(--border-radius);
+}
+
+table thead th:first-child,
+table tr td:first-child {
+ text-align: var(--justify-normal);
+}
+
+table tr:nth-child(even) {
+ background-color: var(--color-accent);
+}
+
+/* Quotes */
+blockquote {
+ display: block;
+ font-size: x-large;
+ line-height: var(--line-height);
+ margin: 1rem auto;
+ max-width: var(--width-card-medium);
+ padding: 1.5rem 1rem;
+ text-align: var(--justify-important);
+}
+
+blockquote footer {
+ color: var(--color-text-secondary);
+ display: block;
+ font-size: small;
+ line-height: var(--line-height);
+ padding: 1.5rem 0;
+}
+
+/* Scrollbars */
+* {
+ scrollbar-width: thin;
+ scrollbar-color: rgb(202, 202, 232) auto;
+}
+
+*::-webkit-scrollbar {
+ width: 5px;
+ height: 5px;
+}
+
+*::-webkit-scrollbar-track {
+ background: transparent;
+}
+
+*::-webkit-scrollbar-thumb {
+ background-color: rgb(202, 202, 232);
+ border-radius: 10px;
+}
diff --git a/06-www/logger-unsafe.mjs b/06-www/logger-unsafe.mjs
new file mode 100644
index 0000000..caad244
--- /dev/null
+++ b/06-www/logger-unsafe.mjs
@@ -0,0 +1,9 @@
+import fs from "fs/promises";
+
+const logFh = await fs.open("./access.log", "a");
+
+async function log(msg) {
+ await logFh.write(`${msg}\n`);
+}
+
+export { log };
diff --git a/06-www/logger.mjs b/06-www/logger.mjs
new file mode 100644
index 0000000..17c5e71
--- /dev/null
+++ b/06-www/logger.mjs
@@ -0,0 +1,11 @@
+import fs from "fs/promises";
+
+const logFh = await fs.open("./access.log", "a");
+const logStream = logFh.createWriteStream();
+
+const log = function (msg) {
+ console.log(msg);
+ logStream.write(`${msg}\n`);
+};
+
+export { log };
diff --git a/06-www/media-types.mjs b/06-www/media-types.mjs
new file mode 100644
index 0000000..57764e7
--- /dev/null
+++ b/06-www/media-types.mjs
@@ -0,0 +1,26 @@
+const types = {
+ "text/html": ["html", "htm"],
+ "text/plain": ["txt", "text"],
+ "text/css": ["css"],
+ "application/javascript": ["js", "mjs"],
+ "application/json": ["json"],
+ "image/jpeg": ["jpeg", "jpg"],
+ "image/x-icon": ["ico"],
+ "image/avif": ["avif"],
+ "audio/mpeg": ["mpga", "mp2", "mp2a", "mp3", "m2a", "m3a"],
+ "video/mp4": ["mp4", "mp4v", "mpg4"],
+ "video/mpeg": ["mpeg", "mpg", "mpe", "m1v", "m2v"],
+ "video/ogg": ["ogv"],
+ "video/quicktime": ["qt", "mov"],
+ "video/x-matroska": ["mkv", "mk3d", "mks"],
+ "video/x-msvideo": ["avi"],
+};
+const extMap = new Map();
+
+for (let [type, extensions] of Object.entries(types)) {
+ for (let extension of extensions) {
+ extMap.set(`.${extension}`, type);
+ }
+}
+
+export default extMap;
diff --git a/06-www/w3-utils.mjs b/06-www/w3-utils.mjs
new file mode 100644
index 0000000..70016de
--- /dev/null
+++ b/06-www/w3-utils.mjs
@@ -0,0 +1,64 @@
+import fs from "fs/promises";
+import { hrtime } from "process";
+
+async function exitIfNotDir(path) {
+ try {
+ const pathStat = await fs.stat(path);
+ if (!pathStat.isDirectory()) {
+ console.error(`${path} is not a directory.`);
+ process.exit(1);
+ }
+ } catch {
+ console.error(`${path} does not exists or cannot be opened.`);
+ process.exit(1);
+ }
+}
+
+function isStringTrue(str) {
+ if (str === "true") {
+ return true;
+ }
+ return false;
+}
+
+function hasTrailingSlash(path) {
+ return path[path.length - 1] === "/";
+}
+
+async function tryOpenFile(path, index) {
+ let file = path;
+ if (hasTrailingSlash(path)) {
+ if (index) {
+ file = `${path}index.html`;
+ } else {
+ return { found: false };
+ }
+ }
+
+ let fh;
+ try {
+ fh = await fs.open(file);
+ } catch (e) {
+ console.error(e);
+ return { found: false };
+ }
+
+ const fileStat = await fh.stat();
+ if (fileStat.isDirectory()) {
+ //spiegare caso eccezionale - così agganciarsi ai tanti controlli di sicurezza da fare nel caso reale
+ await fh.close();
+ return { found: false };
+ }
+ return { found: true, fh, fileStat };
+}
+
+function generateLogString(req, res, pathname, startTime) {
+ const endTime = hrtime.bigint();
+ const duration = (endTime - startTime) / BigInt(1e6);
+ const timestamp = new Date().toISOString();
+ const ip = req.socket.remoteAddress;
+ const httpDetails = `"${req.method} ${pathname}" ${res.statusCode}`;
+ return `${ip} - ${timestamp} ${httpDetails} - ${duration}ms`;
+}
+
+export { exitIfNotDir, isStringTrue, tryOpenFile, generateLogString };
diff --git a/07-eloop/01-linear-prime.mjs b/07-eloop/01-linear-prime.mjs
new file mode 100644
index 0000000..c1da203
--- /dev/null
+++ b/07-eloop/01-linear-prime.mjs
@@ -0,0 +1,5 @@
+import { isPrime } from "./cpu-intensive.mjs";
+
+console.log("Script started");
+console.log(`Is it prime? ${isPrime(2971215073)}`);
+console.log("Script ended");
diff --git a/07-eloop/02-callback-prime.mjs b/07-eloop/02-callback-prime.mjs
new file mode 100644
index 0000000..e98541a
--- /dev/null
+++ b/07-eloop/02-callback-prime.mjs
@@ -0,0 +1,13 @@
+import { PRIME_BIG, isPrime } from "./cpu-intensive.mjs";
+
+function calcPrime(num, cb) {
+ const isNumPrime = isPrime(num);
+ cb(isNumPrime);
+}
+console.log("Script started");
+
+calcPrime(PRIME_BIG, (res) => {
+ console.log(`${PRIME_BIG} is prime? ${res}`);
+});
+
+console.log("Script ended");
diff --git a/07-eloop/03-callback-timeout.mjs b/07-eloop/03-callback-timeout.mjs
new file mode 100644
index 0000000..31e99ac
--- /dev/null
+++ b/07-eloop/03-callback-timeout.mjs
@@ -0,0 +1,15 @@
+import { PRIME_BIG, isPrime } from "./cpu-intensive.mjs";
+
+function calcPrime(num, cb) {
+ setTimeout(() => {
+ const isNumPrime = isPrime(num);
+ cb(isNumPrime);
+ }, 1000);
+}
+console.log("Script started");
+
+calcPrime(PRIME_BIG, (res) => {
+ console.log(`${PRIME_BIG} is prime? ${res}`);
+});
+
+console.log("Script ended (?)");
diff --git a/07-eloop/04-timers-poll-check.mjs b/07-eloop/04-timers-poll-check.mjs
new file mode 100644
index 0000000..06ed493
--- /dev/null
+++ b/07-eloop/04-timers-poll-check.mjs
@@ -0,0 +1,18 @@
+import fs from "fs";
+import { isPrime } from "./cpu-intensive.mjs";
+
+console.log("running the script...");
+
+fs.readFile("./number.txt", { encoding: "utf-8" }, (err, data) => {
+ const numToCheck = Number.parseInt(data);
+ console.log(`Number to check: ${numToCheck}`);
+
+ const primeRes = isPrime(numToCheck);
+
+ setTimeout(() => {
+ console.log(`[timeout] ${numToCheck} is prime? ${primeRes}`);
+ }, 0);
+ setImmediate(() => {
+ console.log(`[immediate] ${numToCheck} is prime? ${primeRes}`);
+ });
+});
diff --git a/07-eloop/05-draining-queues.mjs b/07-eloop/05-draining-queues.mjs
new file mode 100644
index 0000000..82e07ea
--- /dev/null
+++ b/07-eloop/05-draining-queues.mjs
@@ -0,0 +1,18 @@
+setTimeout(() => {
+ console.log(`[timeout] 1`);
+}, 0);
+setImmediate(() => {
+ console.log(`[immediate] 1`);
+});
+setTimeout(() => {
+ console.log(`[timeout] 2`);
+}, 0);
+setImmediate(() => {
+ console.log(`[immediate] 2`);
+});
+setTimeout(() => {
+ console.log(`[timeout] 3`);
+}, 0);
+setImmediate(() => {
+ console.log(`[immediate] 3`);
+});
diff --git a/07-eloop/06-scheduling-timers.mjs b/07-eloop/06-scheduling-timers.mjs
new file mode 100644
index 0000000..12017e8
--- /dev/null
+++ b/07-eloop/06-scheduling-timers.mjs
@@ -0,0 +1,16 @@
+setTimeout(() => {
+ console.log(`[timeout 0]`);
+}, 0);
+setImmediate(() => {
+ console.log(`[immediate 0]`);
+ setTimeout(() => {
+ console.log(`[timeout] scheduled from immediate 0`);
+ }, 0);
+ setImmediate(() => {
+ console.log(`[immediate] scheduled from immediate 0`);
+ });
+ let i = 0;
+ while (i < 10000000) {
+ i++;
+ }
+});
diff --git a/07-eloop/07-microtasks.mjs b/07-eloop/07-microtasks.mjs
new file mode 100644
index 0000000..fee182f
--- /dev/null
+++ b/07-eloop/07-microtasks.mjs
@@ -0,0 +1,17 @@
+setImmediate(() => {
+ console.log("first immediate");
+ Promise.resolve()
+ .then(() => {
+ console.log("then 1");
+ return;
+ })
+ .then(() => {
+ console.log("then 2");
+ });
+ queueMicrotask(() => {
+ console.log("queueMicrotask");
+ });
+});
+setImmediate(() => {
+ console.log("last immediate");
+});
diff --git a/07-eloop/08-next-tick.mjs b/07-eloop/08-next-tick.mjs
new file mode 100644
index 0000000..ed9a041
--- /dev/null
+++ b/07-eloop/08-next-tick.mjs
@@ -0,0 +1,20 @@
+setImmediate(() => {
+ console.log("first immediate");
+ Promise.resolve()
+ .then(() => {
+ console.log("then 1");
+ return;
+ })
+ .then(() => {
+ console.log("then 2");
+ });
+ queueMicrotask(() => {
+ console.log("queueMicrotask");
+ });
+ process.nextTick(() => {
+ console.log("next tick");
+ });
+});
+setImmediate(() => {
+ console.log("last immediate");
+});
diff --git a/07-eloop/09-partitioned.mjs b/07-eloop/09-partitioned.mjs
new file mode 100644
index 0000000..2c0a20e
--- /dev/null
+++ b/07-eloop/09-partitioned.mjs
@@ -0,0 +1,14 @@
+import { PRIME_MED, isPrimeAsync } from "./cpu-intensive.mjs";
+import { hrtime } from "process";
+
+let lastTime = hrtime.bigint();
+const interval = setInterval(() => {
+ const now = hrtime.bigint();
+ const duration = (now - lastTime) / BigInt(1e6);
+ console.log(`[interval] ${duration}ms passed since last one`);
+}, 500);
+
+isPrimeAsync(PRIME_MED, function (res) {
+ console.log(`${PRIME_MED} is prime? ${res}`);
+ clearInterval(interval);
+});
diff --git a/07-eloop/10-http-prime-blocking.mjs b/07-eloop/10-http-prime-blocking.mjs
new file mode 100644
index 0000000..a36e056
--- /dev/null
+++ b/07-eloop/10-http-prime-blocking.mjs
@@ -0,0 +1,26 @@
+import http from "http";
+import { isPrime } from "./cpu-intensive.mjs";
+import { generateLogString } from "./eloop-utils.mjs";
+import { hrtime } from "process";
+
+const server = http.createServer();
+server.on("request", async (req, res) => {
+ const startTime = hrtime.bigint();
+
+ const { searchParams, pathname } = new URL(
+ req.url,
+ `http://${req.headers.host}`
+ );
+ const num = parseInt(searchParams.get("num"));
+ res.on("finish", () => {
+ console.log(generateLogString(req, res, pathname, startTime));
+ });
+
+ const primeRes = isPrime(num);
+
+ res.end(`${num} is prime? ${primeRes}`);
+});
+
+server.listen(3000, "127.0.0.1", () => {
+ console.log(`Web server running`);
+});
diff --git a/07-eloop/11-http-prime-partitioned.mjs b/07-eloop/11-http-prime-partitioned.mjs
new file mode 100644
index 0000000..1ef1bff
--- /dev/null
+++ b/07-eloop/11-http-prime-partitioned.mjs
@@ -0,0 +1,26 @@
+import http from "http";
+import { isPrimeAsync } from "./cpu-intensive.mjs";
+import { generateLogString } from "./eloop-utils.mjs";
+import { hrtime } from "process";
+
+const server = http.createServer();
+server.on("request", async (req, res) => {
+ const startTime = hrtime.bigint();
+
+ const { searchParams, pathname } = new URL(
+ req.url,
+ `http://${req.headers.host}`
+ );
+ const num = parseInt(searchParams.get("num"));
+ res.on("finish", () => {
+ console.log(generateLogString(req, res, pathname, startTime));
+ });
+
+ isPrimeAsync(num, (primeRes) => {
+ res.end(`${num} is prime? ${primeRes}`);
+ });
+});
+
+server.listen(3000, "127.0.0.1", () => {
+ console.log(`Web server running`);
+});
diff --git a/07-eloop/12-child-exec-file.mjs b/07-eloop/12-child-exec-file.mjs
new file mode 100644
index 0000000..ba36246
--- /dev/null
+++ b/07-eloop/12-child-exec-file.mjs
@@ -0,0 +1,11 @@
+import { execFile } from "child_process";
+
+execFile("node", ["isprime.mjs", 3], (error, stdout, stderr) => {
+ if (error) {
+ console.log("The number is NOT prime");
+ } else {
+ console.log("The number is prime");
+ }
+ console.log(`stdout: ${stdout}`);
+ console.log(`stderr: ${stderr}`);
+});
diff --git a/07-eloop/13-child-exec.mjs b/07-eloop/13-child-exec.mjs
new file mode 100644
index 0000000..96af298
--- /dev/null
+++ b/07-eloop/13-child-exec.mjs
@@ -0,0 +1,9 @@
+import { exec } from "child_process";
+
+exec("./isprime.mjs 3", (error, stdout, stderr) => {
+ if (error) {
+ console.log("The number is NOT prime");
+ } else {
+ console.log("The number is prime");
+ }
+});
diff --git a/07-eloop/14-http-prime-child-node.mjs b/07-eloop/14-http-prime-child-node.mjs
new file mode 100644
index 0000000..ea3ebec
--- /dev/null
+++ b/07-eloop/14-http-prime-child-node.mjs
@@ -0,0 +1,30 @@
+import http from "http";
+import { generateLogString } from "./eloop-utils.mjs";
+import { hrtime } from "process";
+import { exec } from "child_process";
+
+const server = http.createServer();
+server.on("request", async (req, res) => {
+ const startTime = hrtime.bigint();
+
+ const { searchParams, pathname } = new URL(
+ req.url,
+ `http://${req.headers.host}`
+ );
+ const num = parseInt(searchParams.get("num"));
+ res.on("finish", () => {
+ console.log(generateLogString(req, res, pathname, startTime));
+ });
+
+ exec(`node isprime.mjs ${num}`, (error, stdout, stderr) => {
+ if (error) {
+ res.end(`${num} is prime? false`);
+ } else {
+ res.end(`${num} is prime? true`);
+ }
+ });
+});
+
+server.listen(3000, "127.0.0.1", () => {
+ console.log(`Web server running`);
+});
diff --git a/07-eloop/15-http-prime-child-c.mjs b/07-eloop/15-http-prime-child-c.mjs
new file mode 100644
index 0000000..72b12f8
--- /dev/null
+++ b/07-eloop/15-http-prime-child-c.mjs
@@ -0,0 +1,30 @@
+import http from "http";
+import { generateLogString } from "./eloop-utils.mjs";
+import { hrtime } from "process";
+import { exec } from "child_process";
+
+const server = http.createServer();
+server.on("request", async (req, res) => {
+ const startTime = hrtime.bigint();
+
+ const { searchParams, pathname } = new URL(
+ req.url,
+ `http://${req.headers.host}`
+ );
+ const num = parseInt(searchParams.get("num"));
+ res.on("finish", () => {
+ console.log(generateLogString(req, res, pathname, startTime));
+ });
+
+ exec(`./isprime ${num}`, (error, stdout, stderr) => {
+ if (error) {
+ res.end(`${num} is prime? false`);
+ } else {
+ res.end(`${num} is prime? true`);
+ }
+ });
+});
+
+server.listen(3000, "127.0.0.1", () => {
+ console.log(`Web server running`);
+});
diff --git a/07-eloop/16-child-spawn.mjs b/07-eloop/16-child-spawn.mjs
new file mode 100644
index 0000000..a6df6fc
--- /dev/null
+++ b/07-eloop/16-child-spawn.mjs
@@ -0,0 +1,15 @@
+import { spawn } from "child_process";
+
+const ls = spawn("ls");
+
+ls.stdout.on("data", (data) => {
+ console.log(`ls stdout ${data}`);
+});
+ls.stderr.on("data", (data) => {
+ console.error(`ls stderr: ${data}`);
+});
+ls.on("close", (code) => {
+ if (code !== 0) {
+ console.log(`ls process exited with code ${code}`);
+ }
+});
diff --git a/07-eloop/17-child-spawn-pipe.mjs b/07-eloop/17-child-spawn-pipe.mjs
new file mode 100644
index 0000000..557fb16
--- /dev/null
+++ b/07-eloop/17-child-spawn-pipe.mjs
@@ -0,0 +1,33 @@
+import { spawn } from "child_process";
+
+const ls = spawn("ls", ["*.mjs"], { shell: true });
+const grep = spawn("grep", ["http"]);
+
+ls.stdout.on("data", (data) => {
+ grep.stdin.write(data);
+});
+
+ls.stderr.on("data", (data) => {
+ console.error(`ls stderr: ${data}`);
+});
+
+ls.on("close", (code) => {
+ if (code !== 0) {
+ console.log(`ls process exited with code ${code}`);
+ }
+ grep.stdin.end();
+});
+
+grep.stdout.on("data", (data) => {
+ console.log(data.toString());
+});
+
+grep.stderr.on("data", (data) => {
+ console.error(`grep stderr: ${data}`);
+});
+
+grep.on("close", (code) => {
+ if (code !== 0) {
+ console.log(`grep process exited with code ${code}`);
+ }
+});
diff --git a/07-eloop/18-http-prime-child-spawn.mjs b/07-eloop/18-http-prime-child-spawn.mjs
new file mode 100644
index 0000000..d1234bf
--- /dev/null
+++ b/07-eloop/18-http-prime-child-spawn.mjs
@@ -0,0 +1,31 @@
+import http from "http";
+import { generateLogString } from "./eloop-utils.mjs";
+import { hrtime } from "process";
+import { spawn } from "child_process";
+
+const server = http.createServer();
+server.on("request", async (req, res) => {
+ const startTime = hrtime.bigint();
+
+ const { searchParams, pathname } = new URL(
+ req.url,
+ `http://${req.headers.host}`
+ );
+ const num = parseInt(searchParams.get("num"));
+ res.on("finish", () => {
+ console.log(generateLogString(req, res, pathname, startTime));
+ });
+
+ const proc = spawn("node", ["isprime.mjs", num]);
+ proc.on("close", (code) => {
+ if (code !== 0) {
+ res.end(`${num} is prime? false`);
+ } else {
+ res.end(`${num} is prime? true`);
+ }
+ });
+});
+
+server.listen(3000, "127.0.0.1", () => {
+ console.log(`Web server running`);
+});
diff --git a/07-eloop/19-child-fork.mjs b/07-eloop/19-child-fork.mjs
new file mode 100644
index 0000000..0a35a70
--- /dev/null
+++ b/07-eloop/19-child-fork.mjs
@@ -0,0 +1,15 @@
+import { fork } from "child_process";
+import { PRIME_HUGE } from "./cpu-intensive.mjs";
+
+const interval = setInterval(() => {
+ console.log(
+ `${new Date().toISOString()} - isprime() is still running in another process..`
+ );
+}, 1000);
+
+const child = fork("isprime-child.mjs");
+child.send(PRIME_HUGE);
+child.on("message", (result) => {
+ console.log(`${PRIME_HUGE} is prime? ${result}`);
+ clearInterval(interval);
+});
diff --git a/07-eloop/20-http-prime-child-fork.mjs b/07-eloop/20-http-prime-child-fork.mjs
new file mode 100644
index 0000000..7439e01
--- /dev/null
+++ b/07-eloop/20-http-prime-child-fork.mjs
@@ -0,0 +1,32 @@
+import http from "http";
+import { generateLogString } from "./eloop-utils.mjs";
+import { hrtime } from "process";
+import { fork } from "child_process";
+
+const server = http.createServer();
+server.on("request", async (req, res) => {
+ const startTime = hrtime.bigint();
+
+ const { searchParams, pathname } = new URL(
+ req.url,
+ `http://${req.headers.host}`
+ );
+ const num = parseInt(searchParams.get("num"));
+ res.on("finish", () => {
+ console.log(generateLogString(req, res, pathname, startTime));
+ });
+
+ const child = fork("isprime-child.mjs");
+ child.send(num);
+ child.on("message", (result) => {
+ if (result) {
+ res.end(`${num} is prime? true`);
+ } else {
+ res.end(`${num} is prime? false`);
+ }
+ });
+});
+
+server.listen(3000, "127.0.0.1", () => {
+ console.log(`Web server running`);
+});
diff --git a/07-eloop/21-self-fork.mjs b/07-eloop/21-self-fork.mjs
new file mode 100644
index 0000000..0ad5379
--- /dev/null
+++ b/07-eloop/21-self-fork.mjs
@@ -0,0 +1,22 @@
+import { PRIME_HUGE, isPrime } from "./cpu-intensive.mjs";
+import { fork } from "child_process";
+
+if (process.argv[2] === "child") {
+ process.on("message", (msg) => {
+ const result = isPrime(msg);
+ process.send(result);
+ process.exit();
+ });
+} else {
+ const interval = setInterval(() => {
+ console.log(
+ `${new Date().toISOString()} - isprime() is still running in another process..`
+ );
+ }, 1000);
+ const child = fork("21-self-fork.mjs", ["child"]);
+ child.send(PRIME_HUGE);
+ child.on("message", (result) => {
+ console.log(`${PRIME_HUGE} is prime? ${result}`);
+ clearInterval(interval);
+ });
+}
diff --git a/07-eloop/22-http-prime-cluster.mjs b/07-eloop/22-http-prime-cluster.mjs
new file mode 100644
index 0000000..f3f6290
--- /dev/null
+++ b/07-eloop/22-http-prime-cluster.mjs
@@ -0,0 +1,41 @@
+import cluster from "cluster";
+import http from "http";
+import { availableParallelism } from "os";
+import process, { hrtime } from "process";
+import { generateLogString } from "./eloop-utils.mjs";
+import { isPrime } from "./cpu-intensive.mjs";
+
+const numCPUs = availableParallelism();
+
+if (cluster.isPrimary) {
+ console.log(`Primary ${process.pid} is running`);
+
+ for (let i = 0; i < numCPUs; i++) {
+ cluster.fork();
+ }
+
+ cluster.on("exit", (worker, code) => {
+ console.log(`worker ${worker.process.pid} exited with code ${code}`);
+ });
+} else {
+ const server = http.createServer();
+ server.on("request", (req, res) => {
+ const startTime = hrtime.bigint();
+
+ const { searchParams, pathname } = new URL(
+ req.url,
+ `http://${req.headers.host}`
+ );
+ const num = parseInt(searchParams.get("num"));
+ res.on("finish", () => {
+ const logMsg = generateLogString(req, res, pathname, startTime);
+ console.log(`${process.pid} - ${logMsg}`);
+ });
+
+ const primeRes = isPrime(num);
+ res.end(`${num} is prime? ${primeRes}`);
+ });
+ server.listen(3000);
+
+ console.log(`Worker ${process.pid} started`);
+}
diff --git a/07-eloop/23-worker-thread.mjs b/07-eloop/23-worker-thread.mjs
new file mode 100644
index 0000000..be0a4c8
--- /dev/null
+++ b/07-eloop/23-worker-thread.mjs
@@ -0,0 +1,22 @@
+import { isMainThread, workerData, Worker, parentPort } from "worker_threads";
+import { PRIME_HUGE, isPrime } from "./cpu-intensive.mjs";
+
+if (isMainThread) {
+ console.log(`Main thread pid is ${process.pid}`);
+ const interval = setInterval(() => {
+ console.log(
+ `${new Date().toISOString()} - isprime() is still running in a worker thread..`
+ );
+ }, 1000);
+ const worker = new Worker("./23-worker-thread.mjs", {
+ workerData: { num: PRIME_HUGE },
+ });
+ worker.on("message", (result) => {
+ console.log(`${PRIME_HUGE} is prime? ${result}`);
+ clearInterval(interval);
+ });
+} else {
+ const result = isPrime(workerData.num);
+ parentPort.postMessage(result);
+ process.exit();
+}
diff --git a/07-eloop/24-http-prime-workers.mjs b/07-eloop/24-http-prime-workers.mjs
new file mode 100644
index 0000000..3b3a56d
--- /dev/null
+++ b/07-eloop/24-http-prime-workers.mjs
@@ -0,0 +1,35 @@
+import http from "http";
+import process, { hrtime } from "process";
+import { generateLogString } from "./eloop-utils.mjs";
+import { isPrime } from "./cpu-intensive.mjs";
+import { Worker, isMainThread, parentPort, workerData } from "worker_threads";
+
+if (isMainThread) {
+ const server = http.createServer();
+ server.on("request", (req, res) => {
+ const startTime = hrtime.bigint();
+
+ const { searchParams, pathname } = new URL(
+ req.url,
+ `http://${req.headers.host}`
+ );
+ const num = parseInt(searchParams.get("num"));
+ res.on("finish", () => {
+ console.log(generateLogString(req, res, pathname, startTime));
+ });
+
+ const worker = new Worker("./24-http-prime-workers.mjs", {
+ workerData: { num: num },
+ });
+ worker.on("message", (result) => {
+ res.end(`${num} is prime? ${result}`);
+ });
+ });
+ server.listen(3000);
+
+ console.log(`Main thread (server) started with pid ${process.pid}`);
+} else {
+ const result = isPrime(workerData.num);
+ parentPort.postMessage(result);
+ process.exit();
+}
diff --git a/07-eloop/25-http-prime-workers-pool.mjs b/07-eloop/25-http-prime-workers-pool.mjs
new file mode 100644
index 0000000..6a786f7
--- /dev/null
+++ b/07-eloop/25-http-prime-workers-pool.mjs
@@ -0,0 +1,51 @@
+import http from "http";
+import process, { hrtime } from "process";
+import { generateLogString } from "./eloop-utils.mjs";
+import { isPrime } from "./cpu-intensive.mjs";
+import { Worker, isMainThread, parentPort } from "worker_threads";
+import { availableParallelism } from "os";
+
+const numCPUs = availableParallelism();
+
+if (isMainThread) {
+ const workerPool = [];
+ for (let i = 0; i < numCPUs; i++) {
+ workerPool.push(new Worker("./25-http-prime-workers-pool.mjs"));
+ }
+ console.log(`Created ${workerPool.length} worker threads`);
+
+ const server = http.createServer();
+ server.on("request", (req, res) => {
+ const startTime = hrtime.bigint();
+
+ const { searchParams, pathname } = new URL(
+ req.url,
+ `http://${req.headers.host}`
+ );
+ const num = parseInt(searchParams.get("num"));
+ res.on("finish", () => {
+ console.log(generateLogString(req, res, pathname, startTime));
+ });
+
+ const wk = workerPool.pop();
+ if (wk) {
+ const listener = (result) => {
+ wk.off("message", listener);
+ workerPool.push(wk);
+ res.end(`${num} is prime? ${result}`);
+ };
+ wk.on("message", listener);
+ wk.postMessage(num);
+ } else {
+ res.statusCode = 503;
+ res.end();
+ }
+ });
+ server.listen(3000);
+ console.log(`Main thread (server) started with pid ${process.pid}`);
+} else {
+ parentPort.on("message", (msg) => {
+ const result = isPrime(msg);
+ parentPort.postMessage(result);
+ });
+}
diff --git a/07-eloop/26-http-prime-workers-pool-2.mjs b/07-eloop/26-http-prime-workers-pool-2.mjs
new file mode 100644
index 0000000..add65a9
--- /dev/null
+++ b/07-eloop/26-http-prime-workers-pool-2.mjs
@@ -0,0 +1,43 @@
+import http from "http";
+import process, { hrtime } from "process";
+import { generateLogString } from "./eloop-utils.mjs";
+import { Worker } from "worker_threads";
+import { availableParallelism } from "os";
+
+const numCPUs = availableParallelism();
+
+const workerPool = [];
+for (let i = 0; i < numCPUs; i++) {
+ workerPool.push(new Worker("./isprime-worker.mjs"));
+}
+console.log(`Created ${workerPool.length} worker threads`);
+
+const server = http.createServer();
+server.on("request", (req, res) => {
+ const startTime = hrtime.bigint();
+
+ const { searchParams, pathname } = new URL(
+ req.url,
+ `http://${req.headers.host}`
+ );
+ const num = parseInt(searchParams.get("num"));
+ res.on("finish", () => {
+ console.log(generateLogString(req, res, pathname, startTime));
+ });
+
+ const wk = workerPool.pop();
+ if (wk) {
+ const listener = (result) => {
+ wk.off("message", listener);
+ workerPool.push(wk);
+ res.end(`${num} is prime? ${result}`);
+ };
+ wk.on("message", listener);
+ wk.postMessage(num);
+ } else {
+ res.statusCode = 503;
+ res.end();
+ }
+});
+server.listen(3000);
+console.log(`Main thread (server) started with pid ${process.pid}`);
diff --git a/07-eloop/cpu-intensive.mjs b/07-eloop/cpu-intensive.mjs
new file mode 100644
index 0000000..6b49250
--- /dev/null
+++ b/07-eloop/cpu-intensive.mjs
@@ -0,0 +1,51 @@
+function isPrime(num) {
+ if (num < 2) {
+ return false;
+ }
+ for (let i = 2; i < num; i++) {
+ if (num % i === 0) {
+ return false;
+ }
+ }
+ return true;
+}
+
+function factorial(n) {
+ return n != 1 ? n * factorial(n - 1) : 1;
+}
+
+const PRIME_SMALL = 65537;
+const PRIME_MED = 999331;
+const PRIME_BIG = 39916801;
+const PRIME_HUGE = 2971215073;
+const PRIME_ENOR = 87178291199;
+
+function isPrimeAsync(num, cb) {
+ process.nextTick(() => {
+ if (num < 2) {
+ return cb(false);
+ }
+ isPrimeRecursive(num, 2, cb);
+ });
+}
+
+function isPrimeRecursive(n, i, cb) {
+ if (i >= n) {
+ return cb(true);
+ }
+ if (n % i === 0) {
+ return cb(false);
+ }
+ setImmediate(isPrimeRecursive.bind(null, n, i + 1, cb));
+}
+
+export {
+ isPrime,
+ factorial,
+ PRIME_SMALL,
+ PRIME_MED,
+ PRIME_BIG,
+ PRIME_HUGE,
+ PRIME_ENOR,
+ isPrimeAsync,
+};
diff --git a/07-eloop/eloop-utils.mjs b/07-eloop/eloop-utils.mjs
new file mode 100644
index 0000000..6faf9b3
--- /dev/null
+++ b/07-eloop/eloop-utils.mjs
@@ -0,0 +1,12 @@
+import { hrtime } from "process";
+
+function generateLogString(req, res, pathname, startTime) {
+ const endTime = hrtime.bigint();
+ const duration = (endTime - startTime) / BigInt(1e6);
+ const timestamp = new Date().toISOString();
+ const ip = req.socket.remoteAddress;
+ const httpDetails = `"${req.method} ${pathname}" ${res.statusCode}`;
+ return `${ip} - ${timestamp} ${httpDetails} - ${duration}ms`;
+}
+
+export { generateLogString };
diff --git a/07-eloop/isprime-child.mjs b/07-eloop/isprime-child.mjs
new file mode 100644
index 0000000..cfda533
--- /dev/null
+++ b/07-eloop/isprime-child.mjs
@@ -0,0 +1,7 @@
+import { isPrime } from "./cpu-intensive.mjs";
+
+process.on("message", (msg) => {
+ const result = isPrime(msg);
+ process.send(result);
+ process.exit();
+});
diff --git a/07-eloop/isprime-worker.mjs b/07-eloop/isprime-worker.mjs
new file mode 100644
index 0000000..0217b5f
--- /dev/null
+++ b/07-eloop/isprime-worker.mjs
@@ -0,0 +1,7 @@
+import { isPrime } from "./cpu-intensive.mjs";
+import { parentPort } from "worker_threads";
+
+parentPort.on("message", (msg) => {
+ const result = isPrime(msg);
+ parentPort.postMessage(result);
+});
diff --git a/07-eloop/isprime.c b/07-eloop/isprime.c
new file mode 100644
index 0000000..2183757
--- /dev/null
+++ b/07-eloop/isprime.c
@@ -0,0 +1,25 @@
+#include
+#include
+
+int main(int argc, char **argv)
+{
+ long i, num;
+ if (argc < 2)
+ {
+ return 1;
+ }
+
+ num = strtol(argv[1], NULL, 10);
+ if (num < 2)
+ {
+ return 1;
+ }
+ for (i = 2; i < num; ++i)
+ {
+ if (num % i == 0)
+ {
+ return 1;
+ }
+ }
+ return 0;
+}
\ No newline at end of file
diff --git a/07-eloop/isprime.mjs b/07-eloop/isprime.mjs
new file mode 100755
index 0000000..e6e3691
--- /dev/null
+++ b/07-eloop/isprime.mjs
@@ -0,0 +1,16 @@
+#!/usr/bin/env node
+import { isPrime } from "./cpu-intensive.mjs";
+
+const num = parseInt(process.argv[2]);
+if (isNaN(num)) {
+ console.error(`${num} is not a number`);
+ process.exit(2);
+}
+
+if (isPrime(num)) {
+ console.log(`${num} is prime`);
+ process.exit(0);
+} else {
+ console.log(`${num} is not prime`);
+ process.exit(1);
+}
diff --git a/07-eloop/number.txt b/07-eloop/number.txt
new file mode 100644
index 0000000..01da44e
--- /dev/null
+++ b/07-eloop/number.txt
@@ -0,0 +1 @@
+39916801
\ No newline at end of file
diff --git a/08-pkg/01-check-strings.js b/08-pkg/01-check-strings.js
new file mode 100644
index 0000000..b13aae9
--- /dev/null
+++ b/08-pkg/01-check-strings.js
@@ -0,0 +1,13 @@
+const { isString } = require("./modules/is-string");
+
+const toCheck = [
+ "a string",
+ 2,
+ { prop: "I'm an object" },
+ function () {},
+ true,
+];
+
+for (const str of toCheck) {
+ console.log(isString(str));
+}
diff --git a/08-pkg/02-manipulate-strings.js b/08-pkg/02-manipulate-strings.js
new file mode 100644
index 0000000..8a4b81c
--- /dev/null
+++ b/08-pkg/02-manipulate-strings.js
@@ -0,0 +1,17 @@
+const { urlify } = require("./modules/string-utils");
+const { inspect } = require("util");
+
+const songs = [
+ "Guerrilla Radio",
+ "Killing in the name",
+ "Bullet in the head",
+ null,
+];
+
+for (const s of songs) {
+ try {
+ console.log(`${s} -> ${urlify(s)}`);
+ } catch (e) {
+ console.error(`Skipped non string value: ${inspect(s)}`);
+ }
+}
diff --git a/08-pkg/03-debugging-time.js b/08-pkg/03-debugging-time.js
new file mode 100644
index 0000000..0c91390
--- /dev/null
+++ b/08-pkg/03-debugging-time.js
@@ -0,0 +1,8 @@
+const debug = require("./modules/debug")("03");
+
+debug(`Script started at ${new Date().toISOString()}`);
+setTimeout(() => {
+ // doing something...
+
+ debug(`Script ended at ${new Date().toISOString()}`);
+}, 1000);
diff --git a/08-pkg/04-open-rad-map.js b/08-pkg/04-open-rad-map.js
new file mode 100644
index 0000000..99e4a49
--- /dev/null
+++ b/08-pkg/04-open-rad-map.js
@@ -0,0 +1,6 @@
+const debug = require("./modules/debug")("04");
+const open = require("./modules/open");
+
+debug("Script started");
+open("https://jciv.iidj.net/map/");
+debug("Function open called");
diff --git a/08-pkg/05-missing-mod.js b/08-pkg/05-missing-mod.js
new file mode 100644
index 0000000..cef38a6
--- /dev/null
+++ b/08-pkg/05-missing-mod.js
@@ -0,0 +1 @@
+require("./modules/my-mod");
diff --git a/08-pkg/06-shared-counter.js b/08-pkg/06-shared-counter.js
new file mode 100644
index 0000000..44b436d
--- /dev/null
+++ b/08-pkg/06-shared-counter.js
@@ -0,0 +1,7 @@
+const counter1 = require("./modules/shared-counter");
+const counter2 = require("./modules/shared-counter");
+
+counter1.inc();
+counter2.inc();
+
+console.log(counter1.val());
diff --git a/08-pkg/07-lines-counter.mjs b/08-pkg/07-lines-counter.mjs
new file mode 100644
index 0000000..990fe04
--- /dev/null
+++ b/08-pkg/07-lines-counter.mjs
@@ -0,0 +1,5 @@
+import { readFileLines, encoding } from "./modules/read-file-lines.mjs";
+
+const file = process.argv[2];
+const lines = await readFileLines(file);
+console.log(`${file} (${encoding}) is ${lines.length} lines long`);
diff --git a/08-pkg/08-numbered-echo.mjs b/08-pkg/08-numbered-echo.mjs
new file mode 100644
index 0000000..a5cff93
--- /dev/null
+++ b/08-pkg/08-numbered-echo.mjs
@@ -0,0 +1,6 @@
+import { readFileLines } from "./modules/read-file-lines.mjs";
+import printLines from "./modules/print-lines-numbers.mjs";
+
+const file = process.argv[2];
+const lines = await readFileLines(file);
+printLines(lines);
diff --git a/08-pkg/09-open-links.mjs b/08-pkg/09-open-links.mjs
new file mode 100644
index 0000000..ac0cd68
--- /dev/null
+++ b/08-pkg/09-open-links.mjs
@@ -0,0 +1,12 @@
+import printLines from "./modules/print-lines-numbers.mjs";
+import { readFileLines as readLinks } from "./modules/read-file-lines.mjs";
+import readNumber from "./modules/read-number.mjs";
+import open from "./modules/open/open.js";
+
+const linksFile = "./links.txt";
+const countFrom = 1;
+
+const links = await readLinks(linksFile);
+printLines(links, countFrom);
+const num = await readNumber("Digit a number and press Enter to open it: ");
+open(links[num - countFrom]);
diff --git a/08-pkg/10-feed-reader/.eslintrc b/08-pkg/10-feed-reader/.eslintrc
new file mode 100644
index 0000000..c8b7979
--- /dev/null
+++ b/08-pkg/10-feed-reader/.eslintrc
@@ -0,0 +1,10 @@
+{
+ "env": {
+ "node": true,
+ "es2022": true
+ },
+ "parserOptions": {
+ "sourceType": "module"
+ },
+ "extends": "eslint:recommended"
+}
diff --git a/08-pkg/10-feed-reader/.gitignore b/08-pkg/10-feed-reader/.gitignore
new file mode 100644
index 0000000..6dca520
--- /dev/null
+++ b/08-pkg/10-feed-reader/.gitignore
@@ -0,0 +1,2 @@
+feed-db.txt
+node_modules/
\ No newline at end of file
diff --git a/08-pkg/10-feed-reader/app.mjs b/08-pkg/10-feed-reader/app.mjs
new file mode 100644
index 0000000..84fd3a7
--- /dev/null
+++ b/08-pkg/10-feed-reader/app.mjs
@@ -0,0 +1,14 @@
+import printLines from "../modules/print-lines-numbers.mjs";
+import readNumber from "../modules/read-number.mjs";
+import open from "../modules/open/open.js";
+import getFeedEntries from "./get-feeds.mjs";
+
+const countFrom = 1;
+const feedUrl = process.argv[2];
+const entries = await getFeedEntries(feedUrl);
+const titles = entries.map((e) => e.title);
+
+printLines(titles, countFrom);
+const num = await readNumber("Digit a number and press Enter to open it: ");
+const selectedEntry = entries[num - countFrom];
+open(selectedEntry.link);
diff --git a/08-pkg/10-feed-reader/get-feeds.mjs b/08-pkg/10-feed-reader/get-feeds.mjs
new file mode 100644
index 0000000..132a346
--- /dev/null
+++ b/08-pkg/10-feed-reader/get-feeds.mjs
@@ -0,0 +1,11 @@
+import { parseFeed } from "htmlparser2";
+
+export default async function getFeedEntries(url, maxEntries = 5) {
+ const feedFetched = await fetch(url);
+ if (!feedFetched.ok) {
+ throw new Error("Feed fetch failed");
+ }
+ const feedContent = await feedFetched.text();
+ const { items } = parseFeed(feedContent);
+ return items.slice(0, maxEntries);
+}
diff --git a/08-pkg/10-feed-reader/package-lock.json b/08-pkg/10-feed-reader/package-lock.json
new file mode 100644
index 0000000..c6a72ed
--- /dev/null
+++ b/08-pkg/10-feed-reader/package-lock.json
@@ -0,0 +1,1216 @@
+{
+ "name": "10-feed-reader",
+ "version": "1.0.0",
+ "lockfileVersion": 3,
+ "requires": true,
+ "packages": {
+ "": {
+ "name": "10-feed-reader",
+ "dependencies": {
+ "htmlparser2": "^9.1.0"
+ },
+ "devDependencies": {
+ "eslint": "^8.56.0"
+ }
+ },
+ "node_modules/@aashutoshrathi/word-wrap": {
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+ "url": "https://github.com/sponsors/sindresorhus"
+ }
+ },
+ "node_modules/uri-js": {
+ "version": "4.4.1",
+ "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.4.1.tgz",
+ "integrity": "sha512-7rKUyy33Q1yc98pQ1DAmLtwX109F7TIfWlW1Ydo8Wl1ii1SeHieeh0HHfPeL2fMXK6z0s8ecKs9frCuLJvndBg==",
+ "dev": true,
+ "dependencies": {
+ "punycode": "^2.1.0"
+ }
+ },
+ "node_modules/which": {
+ "version": "2.0.2",
+ "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
+ "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
+ "dev": true,
+ "dependencies": {
+ "isexe": "^2.0.0"
+ },
+ "bin": {
+ "node-which": "bin/node-which"
+ },
+ "engines": {
+ "node": ">= 8"
+ }
+ },
+ "node_modules/wrappy": {
+ "version": "1.0.2",
+ "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+ "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
+ "dev": true
+ },
+ "node_modules/yocto-queue": {
+ "version": "0.1.0",
+ "resolved": "https://registry.npmjs.org/yocto-queue/-/yocto-queue-0.1.0.tgz",
+ "integrity": "sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==",
+ "dev": true,
+ "engines": {
+ "node": ">=10"
+ },
+ "funding": {
+ "url": "https://github.com/sponsors/sindresorhus"
+ }
+ }
+ }
+}
diff --git a/08-pkg/10-feed-reader/package.json b/08-pkg/10-feed-reader/package.json
new file mode 100644
index 0000000..d103943
--- /dev/null
+++ b/08-pkg/10-feed-reader/package.json
@@ -0,0 +1,14 @@
+{
+ "name": "10-feed-reader",
+ "scripts": {
+ "start": "node app.mjs",
+ "node-blog": "node app.mjs https://nodejs.org/en/feed/blog.xml",
+ "start-debug": "NODE_DEBUG=* node app.mjs"
+ },
+ "dependencies": {
+ "htmlparser2": "^9.1.0"
+ },
+ "devDependencies": {
+ "eslint": "^8.56.0"
+ }
+}
diff --git a/08-pkg/10-feed-reader/wrong.mjs b/08-pkg/10-feed-reader/wrong.mjs
new file mode 100644
index 0000000..693ec3e
--- /dev/null
+++ b/08-pkg/10-feed-reader/wrong.mjs
@@ -0,0 +1 @@
+import wrong from "i-am-not-here";
diff --git a/08-pkg/links.txt b/08-pkg/links.txt
new file mode 100644
index 0000000..6a0bfb2
--- /dev/null
+++ b/08-pkg/links.txt
@@ -0,0 +1,4 @@
+https://jciv.iidj.net/map/
+https://remap.jrc.ec.europa.eu/
+https://vimeo.com/135580602
+https://nuclearsecrecy.com/nukemap/
\ No newline at end of file
diff --git a/08-pkg/modules/bookmark-utils.mjs b/08-pkg/modules/bookmark-utils.mjs
new file mode 100644
index 0000000..8a5bf24
--- /dev/null
+++ b/08-pkg/modules/bookmark-utils.mjs
@@ -0,0 +1 @@
+//TODO - unire tutto e fare tre export
diff --git a/08-pkg/modules/debug/index.js b/08-pkg/modules/debug/index.js
new file mode 100644
index 0000000..f41e67f
--- /dev/null
+++ b/08-pkg/modules/debug/index.js
@@ -0,0 +1,12 @@
+function debugFactory(tag) {
+ const enabled = process.env.DEBUG;
+
+ function debug(msg) {
+ if (!enabled) {
+ return;
+ }
+ console.log(`[${tag}] ${msg}`);
+ }
+ return debug;
+}
+module.exports = debugFactory;
diff --git a/08-pkg/modules/is-string.js b/08-pkg/modules/is-string.js
new file mode 100644
index 0000000..0d35585
--- /dev/null
+++ b/08-pkg/modules/is-string.js
@@ -0,0 +1,5 @@
+function isString(str) {
+ return typeof str === "string";
+}
+
+exports.isString = isString;
diff --git a/08-pkg/modules/open/open.js b/08-pkg/modules/open/open.js
new file mode 100644
index 0000000..f04445d
--- /dev/null
+++ b/08-pkg/modules/open/open.js
@@ -0,0 +1,43 @@
+const process = require("process");
+const childProcess = require("child_process");
+const { isString } = require("../is-string");
+const debug = require("../debug")("open");
+
+const { platform } = process;
+
+const platformCmds = {
+ darwin: "open",
+ linux: "xdg-open",
+ win32: "powershell.exe /c start",
+};
+
+debug("platform is " + platform);
+
+function open(target) {
+ if (!isString(target)) {
+ throw new TypeError("A target is required");
+ }
+ debug("target resource is " + target);
+
+ const command = platformCmds[platform];
+ if (!command) {
+ throw new Error(`${platform} is not supported.`);
+ }
+
+ const childProcessOptions = {
+ stdio: "ignore",
+ detached: true,
+ };
+
+ const spawnedProc = childProcess.spawn(
+ command,
+ [target],
+ childProcessOptions
+ );
+
+ spawnedProc.unref();
+ debug(`Spawned process PID is ${spawnedProc.pid}`);
+ return spawnedProc;
+}
+
+module.exports = open;
diff --git a/08-pkg/modules/open/package.json b/08-pkg/modules/open/package.json
new file mode 100644
index 0000000..563b016
--- /dev/null
+++ b/08-pkg/modules/open/package.json
@@ -0,0 +1,3 @@
+{
+ "main": "./open.js"
+}
diff --git a/08-pkg/modules/print-lines-numbers.mjs b/08-pkg/modules/print-lines-numbers.mjs
new file mode 100644
index 0000000..b410b74
--- /dev/null
+++ b/08-pkg/modules/print-lines-numbers.mjs
@@ -0,0 +1,7 @@
+function print(lines = [], countFrom = 0) {
+ for (let idx = 0; idx < lines.length; idx++) {
+ const line = lines[idx];
+ console.log(`[${countFrom + idx}] ${line}`);
+ }
+}
+export default print;
diff --git a/08-pkg/modules/read-file-lines.mjs b/08-pkg/modules/read-file-lines.mjs
new file mode 100644
index 0000000..57fecda
--- /dev/null
+++ b/08-pkg/modules/read-file-lines.mjs
@@ -0,0 +1,12 @@
+import { readFile } from "node:fs/promises";
+const encoding = "utf-8";
+const separator = "\n";
+
+async function readFileLines(filePath, sep = separator, enc = encoding) {
+ const fileContent = await readFile(filePath, { encoding: enc });
+ const lines = fileContent.split(sep);
+ return lines;
+}
+
+export { readFileLines, separator, encoding };
+export default readFileLines;
diff --git a/08-pkg/modules/read-number.mjs b/08-pkg/modules/read-number.mjs
new file mode 100644
index 0000000..361dd49
--- /dev/null
+++ b/08-pkg/modules/read-number.mjs
@@ -0,0 +1,9 @@
+import * as readline from "node:readline/promises";
+import { stdin as input, stdout as output } from "node:process";
+
+export default async function (prompt = "Insert a number") {
+ const rl = readline.createInterface({ input, output });
+ const answer = await rl.question(prompt);
+ rl.close();
+ return parseInt(answer);
+}
diff --git a/08-pkg/modules/shared-counter/counter.js b/08-pkg/modules/shared-counter/counter.js
new file mode 100644
index 0000000..ea9fdf8
--- /dev/null
+++ b/08-pkg/modules/shared-counter/counter.js
@@ -0,0 +1,5 @@
+let counter = 0;
+
+exports.inc = () => ++counter;
+exports.dec = () => --counter;
+exports.val = () => counter;
diff --git a/08-pkg/modules/shared-counter/package.json b/08-pkg/modules/shared-counter/package.json
new file mode 100644
index 0000000..3e94af7
--- /dev/null
+++ b/08-pkg/modules/shared-counter/package.json
@@ -0,0 +1,3 @@
+{
+ "main": "./counter.js"
+}
diff --git a/08-pkg/modules/string-utils/index.js b/08-pkg/modules/string-utils/index.js
new file mode 100644
index 0000000..8f8f7fe
--- /dev/null
+++ b/08-pkg/modules/string-utils/index.js
@@ -0,0 +1,13 @@
+function isString(str) {
+ return typeof str === "string";
+}
+
+function toUrl(str) {
+ if (!isString(str)) {
+ throw new TypeError("A string is required");
+ }
+ return str.toLowerCase().replace(/[^a-z0-9]+/g, "-");
+}
+
+exports.isString = isString;
+exports.urlify = toUrl;
diff --git a/09-express/01-apod/apod-api.mjs b/09-express/01-apod/apod-api.mjs
new file mode 100644
index 0000000..120a5e2
--- /dev/null
+++ b/09-express/01-apod/apod-api.mjs
@@ -0,0 +1,12 @@
+const API_URL = "https://api.nasa.gov/planetary/apod";
+const API_KEY = process.env.NASA_API_KEY || "DEMO_KEY";
+
+export async function getApodByDate(dateStr) {
+ const res = await fetch(`${API_URL}?date=${dateStr}&api_key=${API_KEY}`);
+ if (res.ok) {
+ const json = await res.json();
+ return json;
+ } else {
+ throw new Error(`API return a ${res.status} code`);
+ }
+}
diff --git a/09-express/01-apod/app_v1.mjs b/09-express/01-apod/app_v1.mjs
new file mode 100644
index 0000000..18f8244
--- /dev/null
+++ b/09-express/01-apod/app_v1.mjs
@@ -0,0 +1,27 @@
+import express from "express";
+const app = express();
+const port = 3000;
+
+app.get("/", (req, res) => {
+ res.send("Hello APOD!");
+});
+app.get("/about", (req, res) => {
+ res.send(`
+
+
+ About APOD
+
+
Astronomy Picture of the Day
+
+Astronomy Picture of the Day (APOD) is originated, written, coordinated,
+and edited since 1995 by Robert Nemiroff and Jerry Bonnell.
+The APOD archive contains the largest collection of annotated
+astronomical images on the internet.
+
+Astronomy Picture of the Day (APOD) is originated, written, coordinated,
+and edited since 1995 by Robert Nemiroff and Jerry Bonnell.
+The APOD archive contains the largest collection of annotated
+astronomical images on the internet.
+
+ Astronomy Picture of the Day (APOD) is originated, written,
+ coordinated, and edited since 1995 by Robert Nemiroff and Jerry
+ Bonnell. The APOD archive contains the largest collection of
+ annotated astronomical images on the internet.
+
+
+
\ No newline at end of file
diff --git a/09-express/01-apod/views/home.hbs b/09-express/01-apod/views/home.hbs
new file mode 100644
index 0000000..2455c71
--- /dev/null
+++ b/09-express/01-apod/views/home.hbs
@@ -0,0 +1,12 @@
+
+
+ {{title}}
+
+
+
+
+
{{title}}
+
+
+
+
\ No newline at end of file
diff --git a/09-express/01-apod/views2/404.hbs b/09-express/01-apod/views2/404.hbs
new file mode 100644
index 0000000..82d5852
--- /dev/null
+++ b/09-express/01-apod/views2/404.hbs
@@ -0,0 +1,2 @@
+
404
+
page not found :\
\ No newline at end of file
diff --git a/09-express/01-apod/views2/500.hbs b/09-express/01-apod/views2/500.hbs
new file mode 100644
index 0000000..430ad36
--- /dev/null
+++ b/09-express/01-apod/views2/500.hbs
@@ -0,0 +1 @@
+
Internal server error :\
\ No newline at end of file
diff --git a/09-express/01-apod/views2/about.hbs b/09-express/01-apod/views2/about.hbs
new file mode 100644
index 0000000..e51e198
--- /dev/null
+++ b/09-express/01-apod/views2/about.hbs
@@ -0,0 +1,7 @@
+
{{title}}
+
+ Astronomy Picture of the Day (APOD) is originated, written, coordinated, and
+ edited since 1995 by Robert Nemiroff and Jerry Bonnell. The APOD archive
+ contains the largest collection of annotated astronomical images on the
+ internet.
+
\ No newline at end of file
diff --git a/09-express/01-apod/views2/apod-full.hbs b/09-express/01-apod/views2/apod-full.hbs
new file mode 100644
index 0000000..328b2f4
--- /dev/null
+++ b/09-express/01-apod/views2/apod-full.hbs
@@ -0,0 +1,8 @@
+
{{title}}
+
Picture of {{date}}
+{{#if isImage}}
+
+{{else}}
+ Open video
+{{/if}}
+
{{description}}
\ No newline at end of file
diff --git a/09-express/01-apod/views2/apod-not-found.hbs b/09-express/01-apod/views2/apod-not-found.hbs
new file mode 100644
index 0000000..2edcd27
--- /dev/null
+++ b/09-express/01-apod/views2/apod-not-found.hbs
@@ -0,0 +1,2 @@
+
APOD not found
+
Please, try with another date
\ No newline at end of file
diff --git a/09-express/01-apod/views2/apod-pic.hbs b/09-express/01-apod/views2/apod-pic.hbs
new file mode 100644
index 0000000..ef13b97
--- /dev/null
+++ b/09-express/01-apod/views2/apod-pic.hbs
@@ -0,0 +1,2 @@
+
{{title}}
+
Picture of {{date}}
\ No newline at end of file
diff --git a/09-express/01-apod/views2/apod.hbs b/09-express/01-apod/views2/apod.hbs
new file mode 100644
index 0000000..70e7176
--- /dev/null
+++ b/09-express/01-apod/views2/apod.hbs
@@ -0,0 +1,4 @@
+
{{title}}
+
Picture of {{date}}
+
+
{{description}}
\ No newline at end of file
diff --git a/09-express/01-apod/views2/home.hbs b/09-express/01-apod/views2/home.hbs
new file mode 100644
index 0000000..ac77870
--- /dev/null
+++ b/09-express/01-apod/views2/home.hbs
@@ -0,0 +1,2 @@
+
+ 