forked from Telodendria/Telodendria
Parse HTTP requests and invoke the request handler.
This commit is contained in:
parent
d3e8886b69
commit
d7d960b77d
3 changed files with 183 additions and 39 deletions
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@ -101,7 +101,7 @@ HttpRequestMethodFromString(const char *str)
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return HTTP_PATCH;
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}
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return -1;
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return HTTP_METHOD_UNKNOWN;
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}
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const char *
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219
src/HttpServer.c
219
src/HttpServer.c
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@ -34,6 +34,8 @@
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#include <unistd.h>
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#include <errno.h>
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#include <poll.h>
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#include <string.h>
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#include <ctype.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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@ -72,50 +74,51 @@ struct HttpServerContext
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static HttpServerContext *
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HttpServerContextCreate(HttpRequestMethod requestMethod,
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char *requestPath, FILE *stream)
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char *requestPath, FILE * stream)
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{
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HttpServerContext *c;
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HttpServerContext *c;
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c = malloc(sizeof(HttpServerContext));
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if (!c)
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{
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return NULL;
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}
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c = malloc(sizeof(HttpServerContext));
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if (!c)
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{
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return NULL;
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}
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c->requestHeaders = HashMapCreate();
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if (!c->requestHeaders)
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{
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free(c);
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return NULL;
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}
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c->requestHeaders = HashMapCreate();
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if (!c->requestHeaders)
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{
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free(c);
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return NULL;
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}
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c->responseHeaders = HashMapCreate();
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if (!c->responseHeaders)
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{
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free(c->requestHeaders);
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free(c);
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return NULL;
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}
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c->responseHeaders = HashMapCreate();
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if (!c->responseHeaders)
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{
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free(c->requestHeaders);
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free(c);
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return NULL;
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}
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c->requestMethod = requestMethod;
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c->requestPath = requestPath;
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c->stream = stream;
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c->requestMethod = requestMethod;
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c->requestPath = requestPath;
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c->stream = stream;
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return c;
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return c;
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}
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static void
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HttpServerContextFree(HttpServerContext *c)
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HttpServerContextFree(HttpServerContext * c)
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{
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if (!c)
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{
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return;
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}
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if (!c)
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{
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return;
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}
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HashMapFree(c->requestHeaders);
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HashMapFree(c->responseHeaders);
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free(c->requestPath);
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fclose(c->stream);
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HashMapFree(c->requestHeaders);
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HashMapFree(c->responseHeaders);
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free(c->requestPath);
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fclose(c->stream);
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}
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static int
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QueueConnection(HttpServer * server, int fd)
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@ -274,6 +277,19 @@ HttpServerWorkerThread(void *args)
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while (!server->stop)
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{
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FILE *fp = DequeueConnection(server);
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HttpServerContext *context;
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char *line = NULL;
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size_t lineSize = 0;
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ssize_t lineLen = 0;
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char *requestMethodPtr;
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char *pathPtr;
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char *requestPath;
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char *requestProtocol;
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ssize_t i = 0;
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HttpRequestMethod requestMethod;
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if (!fp)
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{
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@ -283,12 +299,139 @@ HttpServerWorkerThread(void *args)
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continue;
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}
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fprintf(fp, "HTTP/1.1 500 Internal Server Error\n");
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fprintf(fp, "Server: Telodendria v" TELODENDRIA_VERSION "\n");
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fprintf(fp, "Content-Type: application/json\n");
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fprintf(fp, "\n");
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fprintf(fp, "{}\n");
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/* Get the first line of the request */
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lineLen = getline(&line, &lineSize, fp);
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if (lineLen == -1)
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{
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goto bad_request;
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}
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requestMethodPtr = line;
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for (i = 0; i < lineLen; i++)
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{
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if (line[i] == ' ')
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{
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line[i] = '\0';
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break;
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}
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}
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if (i == lineLen)
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{
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goto bad_request;
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}
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requestMethod = HttpRequestMethodFromString(requestMethodPtr);
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if (requestMethod == HTTP_METHOD_UNKNOWN)
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{
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goto bad_request;
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}
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pathPtr = line + i + 1;
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for (i = 0; i < (line + lineLen) - pathPtr; i++)
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{
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if (pathPtr[i] == ' ')
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{
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pathPtr[i] = '\0';
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break;
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}
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}
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requestPath = malloc((i * sizeof(char)) + 1);
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strcpy(requestPath, pathPtr);
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requestProtocol = &pathPtr[i + 1];
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line[lineLen - 2] = '\0'; /* Get rid of \r and \n */
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if (strcmp(requestProtocol, "HTTP/1.1") != 0 && strcmp(requestProtocol, "HTTP/1.0") != 0)
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{
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printf("Bad protocol: [%s]\n", requestProtocol);
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goto bad_request;
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}
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context = HttpServerContextCreate(requestMethod, requestPath, fp);
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if (!context)
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{
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goto internal_error;
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}
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while ((lineLen = getline(&line, &lineSize, fp)) != -1)
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{
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char *headerKey;
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char *headerValue;
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char *headerPtr;
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ssize_t i;
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if (strcmp(line, "\r\n") == 0)
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{
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break;
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}
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for (i = 0; i < lineLen; i++)
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{
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if (line[i] == ':')
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{
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line[i] = '\0';
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break;
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}
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line[i] = tolower(line[i]);
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}
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headerKey = malloc((i * sizeof(char)) + 1);
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if (!headerKey)
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{
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goto internal_error;
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}
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strcpy(headerKey, line);
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headerPtr = line + i + 1;
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while (isspace(*headerPtr))
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{
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headerPtr++;
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}
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for (i = lineLen - 1; i > (line + lineLen) - headerPtr; i--)
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{
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if (!isspace(line[i]))
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{
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break;
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}
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line[i] = '\0';
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}
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headerValue = malloc(strlen(headerPtr) + 1);
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if (!headerValue)
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{
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goto internal_error;
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}
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strcpy(headerValue, headerPtr);
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HashMapSet(context->requestHeaders, headerKey, headerValue);
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}
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server->requestHandler(context, server->handlerArgs);
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HttpServerContextFree(context);
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goto finish;
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internal_error:
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fprintf(fp, "HTTP/1.0 500 Internal Server Error\n");
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fprintf(fp, "Connection: close\n");
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goto finish;
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bad_request:
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fprintf(fp, "HTTP/1.0 400 Bad Request\n");
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fprintf(fp, "Connection: close\n");
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goto finish;
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finish:
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free(line);
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fclose(fp);
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}
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@ -26,6 +26,7 @@
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typedef enum HttpRequestMethod
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{
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HTTP_METHOD_UNKNOWN,
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HTTP_GET,
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HTTP_HEAD,
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HTTP_POST,
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