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4.6 KiB
ReStructuredText
134 lines
No EOL
4.6 KiB
ReStructuredText
webwords code golf: minimal HTTP servers in multiple languages
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################################################################
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:author: Russell Ballestrini
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:slug: webwords-code-golf-minimal-implementation
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:date: 2025-10-10 16:00
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:tags: Code, Python, Docker
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:status: published
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The full webwords implementations have proper error handling, logging, and structure. But what's the absolute minimum code needed to implement the core functionality?
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**The companion** `webwords git repo <https://github.com/russellballestrini/webwords>`_ **lives here.**
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the challenge
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=============
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Implement webwords functionality in the fewest Python characters possible:
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1. Accept HTTP requests on port 31337
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2. Parse ``keyword`` and ``target`` parameters
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3. Fetch target URI content
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4. Return ``true`` if keyword found, ``false`` otherwise
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python solution
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===============
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.. code-block:: python
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import http.server as h,urllib.request as u,urllib.parse as p
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class S(h.BaseHTTPRequestHandler):
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def do_GET(s):q=dict(p.parse_qsl(p.urlparse(s.path).query));s.send_response(200);s.end_headers();s.wfile.write(str(q.get('keyword','')in u.urlopen(q.get('target','')).read().decode()).lower().encode())
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h.HTTPServer(('',31337),S).serve_forever()
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**Character count: 314**
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c solution
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==========
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.. code-block:: c
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <curl/curl.h>
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struct M{char*m;size_t s;};size_t w(void*c,size_t z,size_t n,void*u){size_t r=z*n;struct M*m=u;char*p=realloc(m->m,m->s+r+1);if(!p)return 0;m->m=p;memcpy(&m->m[m->s],c,r);m->s+=r;m->m[m->s]=0;return r;}int f(char*u,char**o){CURL*h;struct M c={malloc(1),0};curl_global_init(0);h=curl_easy_init();if(h){curl_easy_setopt(h,10002,u);curl_easy_setopt(h,20011,w);curl_easy_setopt(h,10001,&c);curl_easy_perform(h);curl_easy_cleanup(h);}curl_global_cleanup();*o=c.m;return 1;}void s(int k,char*r){char b[256];sprintf(b,"HTTP/1.1 200 OK\r\nContent-Length: %zu\r\n\r\n%s",strlen(r),r);send(k,b,strlen(b),0);}int main(){int v=socket(2,1,0),c;struct sockaddr_in a={2,htons(31337),0};bind(v,(void*)&a,16);listen(v,10);while(1){c=accept(v,0,0);char b[4096],*q,*t,*d;recv(c,b,4095,0);q=strchr(b,'?');if(q&&(t=strstr(q,"target="))&&(q=strstr(q,"keyword="))){char*p;if((p=strchr(t+7,'&')))*(p)=0;else if((p=strchr(t+7,' ')))*(p)=0;if((p=strchr(q+8,'&')))*(p)=0;else if((p=strchr(q+8,' ')))*(p)=0;if(f(t+7,&d))s(c,strstr(d,q+8)?"true":"false");else s(c,"false");free(d);}else s(c,"false");close(c);}}
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**Character count: 1,232**
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how they work
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=============
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**Python version (314 chars):**
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1. Compressed imports with short aliases
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2. Minimal variable names (``s`` for self, ``q`` for query)
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3. Chained operations on single lines
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4. No error handling or validation
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5. Direct string conversion of boolean result
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**C version (1,232 chars):**
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1. Single-character variable names
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2. Removes all whitespace and comments
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3. Uses curl magic numbers instead of constants
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4. Minimal HTTP response formatting
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5. No error checking or memory leak prevention
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docker implementation
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=====================
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**Python Dockerfile:**
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.. code-block:: dockerfile
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FROM alpine:latest
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ENTRYPOINT ["/bin/webwords"]
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EXPOSE 31337
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COPY golf.py /bin/webwords
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RUN chmod 0754 /bin/webwords
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RUN apk --no-cache add python3 ca-certificates && rm -rf /var/cache/apk/*
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**C Dockerfile:**
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.. code-block:: dockerfile
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FROM alpine:latest
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RUN apk --no-cache add gcc musl-dev curl-dev
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WORKDIR /app
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COPY golf.c .
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RUN gcc -o webwords golf.c -lcurl
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EXPOSE 31337
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CMD ["./webwords"]
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testing
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=======
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**Python golf:**
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.. code-block:: bash
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docker build -f Dockerfile.golf -t webwords-golf .
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docker run -d -p 31337:31337 webwords-golf
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curl "http://localhost:31337/?keyword=potato&target=https://www.remarkbox.com"
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**C golf:**
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.. code-block:: bash
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docker build -f Dockerfile.cgolf -t webwords-cgolf .
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docker run -d -p 31337:31337 webwords-cgolf
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curl "http://localhost:31337/?keyword=potato&target=https://www.remarkbox.com"
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Both return ``true`` for potato and ``false`` for lemon, just like the full implementations.
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comparison
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==========
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- **Full webwords Python**: 50+ lines, proper structure, error handling
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- **Full webwords C**: 268 lines, proper structure, error handling
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- **Python golf**: 3 lines, 314 characters, minimal functionality
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- **C golf**: 1 line, 1,232 characters, minimal functionality
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- **Functionality**: Identical for valid requests
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These golf versions prove webwords' core concept can be distilled to its absolute essence while remaining functional across different programming paradigms.
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.. image:: /uploads/2025/10/unpotato.jpg
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:alt: unpotato
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:align: center
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:width: 480px
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.. contents:: |