--- /dev/null
+/**
+ * @file webserver.c
+ * @purpose Test implementing a minimalistic webserver
+ *
+ */
+
+#define _POSIX_C_SOURCE 200809L // needed for some POSIX stuff to work
+
+// --- Standard headers --- //
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h> // string helper functions
+#include <ctype.h> // character types
+#include <signal.h> // for signal handling
+
+// --- Custom headers --- //
+#include "log.h" // C functions to handle logging
+#include "options.h" // Options structure
+#include "network.h" // C functions to handle low level networking
+
+// --- Variable definitions --- //
+Options options; // declared in "options.h"
+
+// --- Function definitions --- //
+
+/**
+ * @funct ParseArguments
+ * @purpose Parse Arguments and setup the global options variable
+ * @param argc - Num args
+ * @param argv - Array of args
+ */
+void ParseArguments(int argc, char ** argv)
+{
+ options.program = argv[0];
+ options.verbosity = LOGDEBUG;
+ if (argc > 1)
+ options.port = atoi(argv[1]); // Allow us change the port for testing (I keep getting "address in use" errors)
+ else
+ options.port = 8080; // Using 8080 instead of 80 for now because to use 80 you have to run the program as root
+ options.sfd = -1;
+ options.bound_sfd = -1;
+ log_print(LOGDEBUG, "ParseArguments", "Called as %s with %d arguments.", options.program, argc);
+}
+
+/**
+ * @funct SignalHandler
+ * @purpose Handle signals
+ * @param sig - The signal
+ */
+void SignalHandler(int sig)
+{
+ // At the moment just always exit.
+ // Call `exit` so that Cleanup will be called to... clean up.
+ log_print(LOGWARN, "SignalHandler", "Got signal %d (%s). Exiting.", sig, strsignal(sig));
+ exit(sig);
+}
+
+/**
+ * @funct Cleanup
+ * @purpose Called when program exits
+ */
+void Cleanup()
+{
+ log_print(LOGDEBUG, "Cleanup", "Begin cleanup.");
+ if (options.sfd >= 0)
+ {
+ Network_close(options.sfd); // close socket
+ options.sfd = -1;
+ }
+ if (options.bound_sfd >= 0)
+ {
+ Network_close(options.bound_sfd); // unbind
+ options.bound_sfd = -1;
+ }
+ log_print(LOGDEBUG, "Cleanup", "Unbound from port %d successfully", options.port);
+ log_print(LOGDEBUG, "Cleanup", "Done.");
+
+}
+
+
+/**
+ * @funct Get
+ * @purpose Respond to a GET request
+ * @param request - The request string
+ * @param sfd - Socket to respond through
+ */
+void Get(char * request, int sfd)
+{
+ log_print(LOGDEBUG, "Get", "Got GET request: \"%s\"", request);
+
+ int i = 0;
+ while (!isspace(request[++i]) && request[i] != '\0'); //NOTE: Don't need to check first character
+ request[i] = '\0';
+
+ char response[BUFSIZ];
+ // TODO: Magical low level interfacing stuff!
+
+ int len = sprintf(response, "HTTP/1.1 200 OK\nContent-type: text/html\n\n");
+ write(sfd, response, len);
+ len = 0;
+
+ if (strcmp("/sensor", request) == 0) // dummy test
+ {
+ len = sprintf(response, "SENSOR OFFLINE\n");
+ }
+ else
+ {
+ FILE * f = fopen(request+1, "r");
+ if (f == NULL)
+ {
+ log_print(LOGWARN, "Get", "File \"%s\" doesn't exist", request+1);
+ len = sprintf(response, "You requested \"%s\" using GET\n", request);
+ }
+ else
+ {
+ while (fgets(response, sizeof(response), f) != NULL)
+ {
+ write(sfd, response, strlen(response));
+ }
+ }
+ }
+ if (len > 0)
+ write(sfd, response, len);
+}
+
+/**
+ * @funct Post
+ * @purpose Respond to a POST request
+ * @param request - The request string
+ * @param sfd - Socket to respond through
+ */
+void Post(char * request, int sfd)
+{
+ log_print(LOGDEBUG, "Post", "Got POST request: \"%s\"", request);
+ int i = 0;
+ while (!isspace(request[++i]) && request[i] != '\0'); //NOTE: Don't need to check first character
+ request[i] = '\0';
+
+ char response[BUFSIZ];
+ int len = sprintf(response, "HTTP/1.1 200 OK\nContent-type: text/html\n\n");
+ write(sfd, response, len);
+ len = 0;
+
+ // TODO: Magical low level interfacing stuff!
+
+
+ if (strcmp("/actuator", request) == 0) // dummy test
+ {
+ len = sprintf(response, "ACTUATOR OFFLINE\n");
+ }
+ else
+ {
+ len = sprintf(response, "You requested \"%s\" using POST\n", request);
+ }
+ if (len > 0)
+ write(sfd, response, len);
+
+}
+
+/**
+ * @funct main
+ * @purpose Main program
+ * @param argc - Num arguments
+ * @param argv - Argument string array
+ * @returns error code (0 for no error)
+ */
+
+int main(int argc, char ** argv)
+{
+ // Parse Arguments
+ ParseArguments(argc, argv);
+ // Set Cleanup to be called on program exit
+ atexit(Cleanup);
+
+ // Setup signal handlers
+ int signals_to_handle[] = {SIGTERM, SIGINT, SIGHUP, SIGPIPE};
+ for (int i = 0; i < sizeof(signals_to_handle)/sizeof(int); ++i)
+ {
+ int s = signals_to_handle[i];
+ if (signal(s, SignalHandler) == SIG_ERR)
+ error("main", "Setting signal handler for %d (%s): %s", s, strsignal(s), strerror(errno));
+ }
+
+ // Bind to the port
+ options.bound_sfd = Network_server_bind(options.port, &(options.port));
+ log_print(LOGDEBUG, "main", "Bound to port %d succesfully", options.port);
+
+ while (true)
+ {
+ // Listen for a client
+ options.sfd = Network_server_listen(options.bound_sfd, NULL);
+
+ log_print(LOGDEBUG, "main", "Connected to client");
+
+ char buffer[BUFSIZ]; //NOTE: Won't be able to respond to requests longer than BUFSIZ
+ // read a request
+ int len = read(options.sfd, buffer, sizeof(buffer));
+ log_print(LOGDEBUG, "main", "Read %d characters. Buffer is \"%s\"", len, buffer);
+
+ // Parse request
+ for (int i = 0; i < sizeof(buffer) && buffer[i] != '\0'; ++i)
+ {
+ // Look for "GET" or "POST" followed by a whitespace
+ if (isspace(buffer[i])) // whitespace
+ {
+ while (isspace(buffer[++i]) && buffer[i] != '\0'); // Skip whitespace
+ char * req = buffer+i; // set request string
+
+ buffer[i-1] = '\0'; // terminate request type
+ while (buffer[++i] != '\n' && buffer[i] != '\0'); // find next newline
+ buffer[i-1] = '\0';
+
+ if (strcmp("GET", buffer) == 0) // Compare with "GET"
+ {
+ Get(req, options.sfd);
+ }
+ else if (strcmp("POST", buffer) == 0) // Compare with "POST"
+ {
+ Post(req, options.sfd);
+ }
+ else // Unknown request
+ {
+ log_print(LOGWARN, "main", "Unrecognised request type \"%s\" (request \"%s\")", buffer, req);
+ char response[] = "Error: Unrecognised request\n";
+ write(options.sfd, response, sizeof(response));
+ }
+ break;
+ }
+ }
+
+ // Close connection
+ Network_close(options.sfd);
+ options.sfd = -1;
+ log_print(LOGDEBUG, "main", "Closed connection to client");
+ }
+
+
+
+
+ return 0;
+}
+
+
--- /dev/null
+/* Javascript plotting library for jQuery, version 0.8.1.
+
+Copyright (c) 2007-2013 IOLA and Ole Laursen.
+Licensed under the MIT license.
+
+*/// first an inline dependency, jquery.colorhelpers.js, we inline it here
+// for convenience
+/* Plugin for jQuery for working with colors.
+ *
+ * Version 1.1.
+ *
+ * Inspiration from jQuery color animation plugin by John Resig.
+ *
+ * Released under the MIT license by Ole Laursen, October 2009.
+ *
+ * Examples:
+ *
+ * $.color.parse("#fff").scale('rgb', 0.25).add('a', -0.5).toString()
+ * var c = $.color.extract($("#mydiv"), 'background-color');
+ * console.log(c.r, c.g, c.b, c.a);
+ * $.color.make(100, 50, 25, 0.4).toString() // returns "rgba(100,50,25,0.4)"
+ *
+ * Note that .scale() and .add() return the same modified object
+ * instead of making a new one.
+ *
+ * V. 1.1: Fix error handling so e.g. parsing an empty string does
+ * produce a color rather than just crashing.
+ */(function(e){e.color={},e.color.make=function(t,n,r,i){var s={};return s.r=t||0,s.g=n||0,s.b=r||0,s.a=i!=null?i:1,s.add=function(e,t){for(var n=0;n<e.length;++n)s[e.charAt(n)]+=t;return s.normalize()},s.scale=function(e,t){for(var n=0;n<e.length;++n)s[e.charAt(n)]*=t;return s.normalize()},s.toString=function(){return s.a>=1?"rgb("+[s.r,s.g,s.b].join(",")+")":"rgba("+[s.r,s.g,s.b,s.a].join(",")+")"},s.normalize=function(){function e(e,t,n){return t<e?e:t>n?n:t}return s.r=e(0,parseInt(s.r),255),s.g=e(0,parseInt(s.g),255),s.b=e(0,parseInt(s.b),255),s.a=e(0,s.a,1),s},s.clone=function(){return e.color.make(s.r,s.b,s.g,s.a)},s.normalize()},e.color.extract=function(t,n){var r;do{r=t.css(n).toLowerCase();if(r!=""&&r!="transparent")break;t=t.parent()}while(!e.nodeName(t.get(0),"body"));return r=="rgba(0, 0, 0, 0)"&&(r="transparent"),e.color.parse(r)},e.color.parse=function(n){var r,i=e.color.make;if(r=/rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(n))return i(parseInt(r[1],10),parseInt(r[2],10),parseInt(r[3],10));if(r=/rgba\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(n))return i(parseInt(r[1],10),parseInt(r[2],10),parseInt(r[3],10),parseFloat(r[4]));if(r=/rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(n))return i(parseFloat(r[1])*2.55,parseFloat(r[2])*2.55,parseFloat(r[3])*2.55);if(r=/rgba\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(n))return i(parseFloat(r[1])*2.55,parseFloat(r[2])*2.55,parseFloat(r[3])*2.55,parseFloat(r[4]));if(r=/#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(n))return i(parseInt(r[1],16),parseInt(r[2],16),parseInt(r[3],16));if(r=/#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(n))return i(parseInt(r[1]+r[1],16),parseInt(r[2]+r[2],16),parseInt(r[3]+r[3],16));var s=e.trim(n).toLowerCase();return s=="transparent"?i(255,255,255,0):(r=t[s]||[0,0,0],i(r[0],r[1],r[2]))};var t={aqua:[0,255,255],azure:[240,255,255],beige:[245,245,220],black:[0,0,0],blue:[0,0,255],brown:[165,42,42],cyan:[0,255,255],darkblue:[0,0,139],darkcyan:[0,139,139],darkgrey:[169,169,169],darkgreen:[0,100,0],darkkhaki:[189,183,107],darkmagenta:[139,0,139],darkolivegreen:[85,107,47],darkorange:[255,140,0],darkorchid:[153,50,204],darkred:[139,0,0],darksalmon:[233,150,122],darkviolet:[148,0,211],fuchsia:[255,0,255],gold:[255,215,0],green:[0,128,0],indigo:[75,0,130],khaki:[240,230,140],lightblue:[173,216,230],lightcyan:[224,255,255],lightgreen:[144,238,144],lightgrey:[211,211,211],lightpink:[255,182,193],lightyellow:[255,255,224],lime:[0,255,0],magenta:[255,0,255],maroon:[128,0,0],navy:[0,0,128],olive:[128,128,0],orange:[255,165,0],pink:[255,192,203],purple:[128,0,128],violet:[128,0,128],red:[255,0,0],silver:[192,192,192],white:[255,255,255],yellow:[255,255,0]}})(jQuery),function(e){function n(t,n){var r=n.children("."+t)[0];if(r==null){r=document.createElement("canvas"),r.className=t,e(r).css({direction:"ltr",position:"absolute",left:0,top:0}).appendTo(n);if(!r.getContext){if(!window.G_vmlCanvasManager)throw new Error("Canvas is not available. 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r,i,s,o={style:t.css("font-style"),size:Math.round(.8*(+t.css("font-size").replace("px","")||13)),variant:t.css("font-variant"),weight:t.css("font-weight"),family:t.css("font-family")};o.lineHeight=o.size*1.15,s=a.xaxes.length||1;for(r=0;r<s;++r)i=a.xaxes[r],i&&!i.tickColor&&(i.tickColor=i.color),i=e.extend(!0,{},a.xaxis,i),a.xaxes[r]=i,i.font&&(i.font=e.extend({},o,i.font),i.font.color||(i.font.color=i.color));s=a.yaxes.length||1;for(r=0;r<s;++r)i=a.yaxes[r],i&&!i.tickColor&&(i.tickColor=i.color),i=e.extend(!0,{},a.yaxis,i),a.yaxes[r]=i,i.font&&(i.font=e.extend({},o,i.font),i.font.color||(i.font.color=i.color));a.xaxis.noTicks&&a.xaxis.ticks==null&&(a.xaxis.ticks=a.xaxis.noTicks),a.yaxis.noTicks&&a.yaxis.ticks==null&&(a.yaxis.ticks=a.yaxis.noTicks),a.x2axis&&(a.xaxes[1]=e.extend(!0,{},a.xaxis,a.x2axis),a.xaxes[1].position="top"),a.y2axis&&(a.yaxes[1]=e.extend(!0,{},a.yaxis,a.y2axis),a.yaxes[1].position="right"),a.grid.coloredAreas&&(a.grid.markings=a.grid.coloredAreas),a.grid.coloredAreasColor&&(a.grid.markingsColor=a.grid.coloredAreasColor),a.lines&&e.extend(!0,a.series.lines,a.lines),a.points&&e.extend(!0,a.series.points,a.points),a.bars&&e.extend(!0,a.series.bars,a.bars),a.shadowSize!=null&&(a.series.shadowSize=a.shadowSize),a.highlightColor!=null&&(a.series.highlightColor=a.highlightColor);for(r=0;r<a.xaxes.length;++r)O(d,r+1).options=a.xaxes[r];for(r=0;r<a.yaxes.length;++r)O(v,r+1).options=a.yaxes[r];for(var 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\ No newline at end of file
+++ /dev/null
-/**
- * @file webserver.c
- * @purpose Test implementing a minimalistic webserver
- *
- */
-
-#define _POSIX_C_SOURCE 200809L // needed for some POSIX stuff to work
-
-// --- Standard headers --- //
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h> // string helper functions
-#include <ctype.h> // character types
-#include <signal.h> // for signal handling
-
-// --- Custom headers --- //
-#include "log.h" // C functions to handle logging
-#include "options.h" // Options structure
-#include "network.h" // C functions to handle low level networking
-
-// --- Variable definitions --- //
-Options options; // declared in "options.h"
-
-// --- Function definitions --- //
-
-/**
- * @funct ParseArguments
- * @purpose Parse Arguments and setup the global options variable
- * @param argc - Num args
- * @param argv - Array of args
- */
-void ParseArguments(int argc, char ** argv)
-{
- options.program = argv[0];
- options.verbosity = LOGDEBUG;
- if (argc > 1)
- options.port = atoi(argv[1]); // Allow us change the port for testing (I keep getting "address in use" errors)
- else
- options.port = 8080; // Using 8080 instead of 80 for now because to use 80 you have to run the program as root
- options.sfd = -1;
- options.bound_sfd = -1;
- log_print(LOGDEBUG, "ParseArguments", "Called as %s with %d arguments.", options.program, argc);
-}
-
-/**
- * @funct SignalHandler
- * @purpose Handle signals
- * @param sig - The signal
- */
-void SignalHandler(int sig)
-{
- // At the moment just always exit.
- // Call `exit` so that Cleanup will be called to... clean up.
- log_print(LOGWARN, "SignalHandler", "Got signal %d (%s). Exiting.", sig, strsignal(sig));
- exit(sig);
-}
-
-/**
- * @funct Cleanup
- * @purpose Called when program exits
- */
-void Cleanup()
-{
- log_print(LOGDEBUG, "Cleanup", "Begin cleanup.");
- if (options.sfd >= 0)
- {
- Network_close(options.sfd); // close socket
- options.sfd = -1;
- }
- if (options.bound_sfd >= 0)
- {
- Network_close(options.bound_sfd); // unbind
- options.bound_sfd = -1;
- }
- log_print(LOGDEBUG, "Cleanup", "Unbound from port %d successfully", options.port);
- log_print(LOGDEBUG, "Cleanup", "Done.");
-
-}
-
-
-/**
- * @funct Get
- * @purpose Respond to a GET request
- * @param request - The request string
- * @param sfd - Socket to respond through
- */
-void Get(char * request, int sfd)
-{
- log_print(LOGDEBUG, "Get", "Got GET request: \"%s\"", request);
-
- int i = 0;
- while (!isspace(request[++i]) && request[i] != '\0'); //NOTE: Don't need to check first character
- request[i] = '\0';
-
- char response[BUFSIZ];
- // TODO: Magical low level interfacing stuff!
-
- int len = sprintf(response, "HTTP/1.1 200 OK\nContent-type: text/html\n\n");
- write(sfd, response, len);
- len = 0;
-
- if (strcmp("/sensor", request) == 0) // dummy test
- {
- len = sprintf(response, "SENSOR OFFLINE\n");
- }
- else
- {
- FILE * f = fopen(request+1, "r");
- if (f == NULL)
- {
- log_print(LOGWARN, "Get", "File \"%s\" doesn't exist", request+1);
- len = sprintf(response, "You requested \"%s\" using GET\n", request);
- }
- else
- {
- while (fgets(response, sizeof(response), f) != NULL)
- {
- write(sfd, response, strlen(response));
- }
- }
- }
- if (len > 0)
- write(sfd, response, len);
-}
-
-/**
- * @funct Post
- * @purpose Respond to a POST request
- * @param request - The request string
- * @param sfd - Socket to respond through
- */
-void Post(char * request, int sfd)
-{
- log_print(LOGDEBUG, "Post", "Got POST request: \"%s\"", request);
- int i = 0;
- while (!isspace(request[++i]) && request[i] != '\0'); //NOTE: Don't need to check first character
- request[i] = '\0';
-
- char response[BUFSIZ];
- int len = sprintf(response, "HTTP/1.1 200 OK\nContent-type: text/html\n\n");
- write(sfd, response, len);
- len = 0;
-
- // TODO: Magical low level interfacing stuff!
-
-
- if (strcmp("/actuator", request) == 0) // dummy test
- {
- len = sprintf(response, "ACTUATOR OFFLINE\n");
- }
- else
- {
- len = sprintf(response, "You requested \"%s\" using POST\n", request);
- }
- if (len > 0)
- write(sfd, response, len);
-
-}
-
-/**
- * @funct main
- * @purpose Main program
- * @param argc - Num arguments
- * @param argv - Argument string array
- * @returns error code (0 for no error)
- */
-
-int main(int argc, char ** argv)
-{
- // Parse Arguments
- ParseArguments(argc, argv);
- // Set Cleanup to be called on program exit
- atexit(Cleanup);
-
- // Setup signal handlers
- int signals_to_handle[] = {SIGTERM, SIGINT, SIGHUP, SIGPIPE};
- for (int i = 0; i < sizeof(signals_to_handle)/sizeof(int); ++i)
- {
- int s = signals_to_handle[i];
- if (signal(s, SignalHandler) == SIG_ERR)
- error("main", "Setting signal handler for %d (%s): %s", s, strsignal(s), strerror(errno));
- }
-
- // Bind to the port
- options.bound_sfd = Network_server_bind(options.port, &(options.port));
- log_print(LOGDEBUG, "main", "Bound to port %d succesfully", options.port);
-
- while (true)
- {
- // Listen for a client
- options.sfd = Network_server_listen(options.bound_sfd, NULL);
-
- log_print(LOGDEBUG, "main", "Connected to client");
-
- char buffer[BUFSIZ]; //NOTE: Won't be able to respond to requests longer than BUFSIZ
- // read a request
- int len = read(options.sfd, buffer, sizeof(buffer));
- log_print(LOGDEBUG, "main", "Read %d characters. Buffer is \"%s\"", len, buffer);
-
- // Parse request
- for (int i = 0; i < sizeof(buffer) && buffer[i] != '\0'; ++i)
- {
- // Look for "GET" or "POST" followed by a whitespace
- if (isspace(buffer[i])) // whitespace
- {
- while (isspace(buffer[++i]) && buffer[i] != '\0'); // Skip whitespace
- char * req = buffer+i; // set request string
-
- buffer[i-1] = '\0'; // terminate request type
- while (buffer[++i] != '\n' && buffer[i] != '\0'); // find next newline
- buffer[i-1] = '\0';
-
- if (strcmp("GET", buffer) == 0) // Compare with "GET"
- {
- Get(req, options.sfd);
- }
- else if (strcmp("POST", buffer) == 0) // Compare with "POST"
- {
- Post(req, options.sfd);
- }
- else // Unknown request
- {
- log_print(LOGWARN, "main", "Unrecognised request type \"%s\" (request \"%s\")", buffer, req);
- char response[] = "Error: Unrecognised request\n";
- write(options.sfd, response, sizeof(response));
- }
- break;
- }
- }
-
- // Close connection
- Network_close(options.sfd);
- options.sfd = -1;
- log_print(LOGDEBUG, "main", "Closed connection to client");
- }
-
-
-
-
- return 0;
-}
-
-
git.ucc.asn.au / matches / MCTX3420.git / commitdiff
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