mirror of
https://github.com/fumiama/simple-http-server.git
synced 2026-06-05 00:30:23 +08:00
修正cgi，优化代码结构
This commit is contained in:
源文雨
@@ -20,7 +20,6 @@ A necessary subset of `HTTP 1.0` with following options of request header being
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- 200 OK
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- 400 BAD REQUEST
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- 404 NOT FOUND
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- 414 Request-URI Too Long
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- 500 Internal Server Error
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- 501 Method Not Implemented
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672
server.c
672
server.c
@@ -25,9 +25,9 @@
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#include <unistd.h>
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#if !__APPLE__
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#include <sys/sendfile.h>
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#include <sys/sendfile.h>
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#else
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static struct sf_hdtr hdtr;
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static struct sf_hdtr hdtr;
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#endif
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#define ISspace(x) isspace((int)(x))
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@@ -38,10 +38,10 @@ enum METHOD_TYPE {GET, POST};
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typedef enum METHOD_TYPE METHOD_TYPE;
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struct HTTP_REQUEST {
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const char *path;
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const char *method;
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METHOD_TYPE method_type;
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const char *query_string;
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const char *path;
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const char *method;
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METHOD_TYPE method_type;
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const char *query_string;
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};
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typedef struct HTTP_REQUEST HTTP_REQUEST;
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@@ -54,11 +54,10 @@ static void execute_cgi(int, int, const HTTP_REQUEST*);
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static uint32_t get_file_size(const char *, int);
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static int get_line(int, char *, int);
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static void handle_quit(int);
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static void headers(int, const char *);
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static int headers(int, const char *);
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static void not_found(int);
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static void serve_file(int, const char *);
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static int startup(u_int16_t *);
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static void toolong(int);
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static void unimplemented(int);
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/**********************************************************************/
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@@ -69,110 +68,101 @@ static void unimplemented(int);
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/* read & discard headers */
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#define discard(client) \
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while((numchars > 0) && strcmp("\n", buf)) numchars = get_line(client, buf, sizeof(buf))
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while((numchars > 0) && strcmp("\n", buf)) numchars = get_line(client, buf, sizeof(buf))
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#define methodequ(str, method) (*(uint32_t*)(method) == *(uint32_t*)(str))
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#define skiptext(buf, j, cap) while(!ISspace(buf[j]) && (j < (cap))) j++
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#define skipspace(buf, j, cap) while(ISspace(buf[j]) && (j < (cap))) j++
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#define getmethod(method_type) ((method_type == GET)?"GET":"POST")
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static void accept_request(void *cli) {
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pthread_detach(pthread_self());
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int client =(int)cli;
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char buf[1024];
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int numchars;
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char method[255];
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char url[255];
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char path[512];
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size_t i, j;
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struct stat st;
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int cgi = 0; /* becomes true if server decides this is a CGI program */
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char *query_string = NULL;
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METHOD_TYPE method_type;
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int client = (int)cli;
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char buf[1024], *path, *query_string;
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int numchars, cgi = 0, j; // cgi becomes true if server decides this is a CGI program
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struct stat st;
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METHOD_TYPE method_type;
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numchars = get_line(client, buf, sizeof(buf));
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i = 0;
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j = 0;
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while(!ISspace(buf[j]) &&(i < sizeof(method) - 1)) {
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method[i] = buf[j];
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i++;
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j++;
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}
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method[i] = '\0';
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pthread_detach(pthread_self());
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if(strcasecmp(method, "GET") == 0) {
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method_type = GET;
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}
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numchars = get_line(client, buf, sizeof(buf));
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j = 0;
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skiptext(buf, j, numchars - 1);
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buf[j] = '\0';
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if(strcasecmp(method, "POST") == 0) {
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if(method_type == GET) {
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discard(client);
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unimplemented(client);
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return;
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} else {
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cgi = 1;
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method_type = POST;
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}
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}
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if(methodequ(buf, "GET")) method_type = GET;
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else if(methodequ(buf, "POST")) {
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cgi = 1;
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method_type = POST;
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}
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i = 0;
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while(ISspace(buf[j]) && (j < sizeof(buf))) j++;
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for(; !ISspace(buf[j]) && (i < sizeof(url) - 1) && (j < sizeof(buf)); i++, j++) {
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url[i] = buf[j];
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}
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if(!ISspace(buf[j])) {
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skipspace(buf, j, numchars - 1);
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path = buf + j + 1;
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skiptext(buf, j, numchars - 1);
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buf[j] = 0;
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if(method_type == GET) {
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query_string = path;
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while((*query_string != '?') && (*query_string != '\0')) query_string++;
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if(*query_string == '?') {
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cgi = 1;
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*query_string = '\0';
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query_string++;
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}
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}
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// skip possible ../
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while((*path == '.' || *path == '/' || *path == '#') && *path != 0) path++;
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path -= 2;
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path[0] = '.'; path[1] = '/';
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printf("[%s] <%s> (%s) = ", getmethod(method_type), path, query_string);
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// 花括号不可省略
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if(stat(path, &st) == -1) {
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discard(client);
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toolong(client);
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return;
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}
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url[i] = '\0';
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not_found(client);
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} else {
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int pathlen = strlen(path) + 1;
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char* path_heap = malloc(pathlen + 11); // 11 is for possible /index.html
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memcpy(path_heap, path, pathlen);
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printf("<%d> ", pathlen);
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path = path_heap;
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if(method_type == GET) {
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query_string = url;
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while((*query_string != '?') &&(*query_string != '\0')) query_string++;
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if(*query_string == '?') {
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cgi = 1;
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*query_string = '\0';
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query_string++;
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}
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}
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char* query_heap = query_string;
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int query_length = strlen(query_heap) + 1;
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query_string = malloc(query_length);
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memcpy(query_string, query_heap, query_length);
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printf("(%d) ", query_length);
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char* url_start = url + 1;
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//skip possible ../
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while((*url_start == '.' || *url_start == '/' || *url_start == '#') && *url_start != 0) url_start++;
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path[0] = '.'; path[1] = '/'; path[2] = 0;
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if(*url_start) strncat(path, url_start, 499);
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printf("%s %s with query '%s': ", method, path, query_string);
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//花括号不可省略
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if(stat(path, &st) == -1) {
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discard(client);
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not_found(client);
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} else {
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if((st.st_mode & S_IFMT) == S_IFDIR) {
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strcat(path, "/index.html");
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//花括号不可省略
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if(stat(path, &st) == -1) {
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discard(client);
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not_found(client);
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close(client);
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return;
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}
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}
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int content_length = 0;
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if((st.st_mode & S_IXUSR) ||(st.st_mode & S_IXGRP) ||(st.st_mode & S_IXOTH)) cgi = 1;
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while((numchars > 0) && strcmp("\n", buf)) {
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numchars = get_line(client, buf, sizeof(buf));
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if(!content_length && strcasestr(buf, "Content-Length: ")) {
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content_length = atoi(buf + 16);
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}
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}
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if(method_type == POST && content_length == -1) bad_request(client);
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else if(!cgi) serve_file(client, path);
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else {
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HTTP_REQUEST request;
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request.path = path;
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request.method = method;
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request.method_type = method_type;
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request.query_string = query_string;
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execute_cgi(client, content_length, &request);
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}
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}
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close(client);
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if((st.st_mode & S_IFMT) == S_IFDIR) {
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strcat(path, "/index.html");
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// 花括号不可省略
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if(stat(path, &st) == -1) {
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discard(client);
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not_found(client);
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close(client);
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return;
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}
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}
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int content_length = 0;
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cgi &= ((st.st_mode & S_IXUSR) || (st.st_mode & S_IXGRP) || (st.st_mode & S_IXOTH));
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while((numchars > 0) && strcmp("\n", buf)) {
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numchars = get_line(client, buf, sizeof(buf));
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if(!content_length && strcasestr(buf, "Content-Length: ")) {
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content_length = atoi(buf + 16);
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}
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}
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if(method_type == POST && content_length == -1) bad_request(client);
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else if(!cgi) serve_file(client, path);
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else {
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HTTP_REQUEST request;
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request.path = path;
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request.method = getmethod(method_type);
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request.method_type = method_type;
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request.query_string = query_string;
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execute_cgi(client, content_length, &request);
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}
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free(path); free(query_string);
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}
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close(client);
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}
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/**********************************************************************/
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@@ -181,7 +171,8 @@ static void accept_request(void *cli) {
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/**********************************************************************/
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#define HTTP400 "HTTP/1.0 400 BAD REQUEST\r\nContent-Type: text/html\r\n\r\n<P>Your browser sent a bad request, such as a POST without a Content-Length.\r\n"
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static void bad_request(int client) {
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send(client, HTTP400, sizeof(HTTP400)-1, 0);
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send(client, HTTP400, sizeof(HTTP400)-1, 0);
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puts("400 BAD REQUEST.");
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}
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/**********************************************************************/
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@@ -192,16 +183,16 @@ static void bad_request(int client) {
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* FILE pointer for the file to cat */
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/**********************************************************************/
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static void cat(int client, FILE *resource) {
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off_t len = 0;
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#if __APPLE__
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sendfile(fileno(resource), client, 0, &len, &hdtr, 0);
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#else
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fseek(resource, 0, SEEK_END);
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off_t file_size = ftell(resource);
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rewind(resource);
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sendfile(client, fileno(resource), &len, file_size);
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#endif
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printf("Send %lu bytes.\n", len);
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off_t len = 0;
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#if __APPLE__
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sendfile(fileno(resource), client, 0, &len, &hdtr, 0);
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#else
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fseek(resource, 0, SEEK_END);
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off_t file_size = ftell(resource);
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rewind(resource);
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sendfile(client, fileno(resource), &len, file_size);
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#endif
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printf("Sendfile: %lu bytes.\n", len);
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}
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/**********************************************************************/
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@@ -210,7 +201,8 @@ static void cat(int client, FILE *resource) {
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/**********************************************************************/
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#define HTTP500 "HTTP/1.0 500 Internal Server Error\r\nContent-Type: text/html\r\n\r\n<P>Internal Server Error.\r\n"
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static void cannot_execute(int client) {
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send(client, HTTP500, sizeof(HTTP500)-1, 0);
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send(client, HTTP500, sizeof(HTTP500)-1, 0);
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puts("500 Internal Server Error.");
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}
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/**********************************************************************/
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@@ -219,8 +211,8 @@ static void cannot_execute(int client) {
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* program indicating an error. */
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/**********************************************************************/
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static void error_die(const char *sc) {
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perror(sc);
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exit(1);
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perror(sc);
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exit(1);
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}
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/**********************************************************************/
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@@ -230,93 +222,91 @@ static void error_die(const char *sc) {
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* path to the CGI script */
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/**********************************************************************/
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static void execute_cgi(int client, int content_length, const HTTP_REQUEST* request) {
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int cgi_output[2];
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int cgi_input[2];
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pid_t pid;
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int i;
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int cgi_output[2], cgi_input[2], i;
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pid_t pid;
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if(pipe(cgi_output) < 0 || pipe(cgi_input) < 0 ||(pid = fork()) < 0) cannot_execute(client);
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/* child: CGI script */
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else if(pid == 0) {
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char env[255];
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if(pipe(cgi_output) < 0 || pipe(cgi_input) < 0 || (pid = fork()) < 0) cannot_execute(client);
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/* child: CGI script */
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else if(pid == 0) {
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char env[255];
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dup2(cgi_output[1], 1);
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dup2(cgi_input[0], 0);
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close(cgi_output[0]);
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close(cgi_input[1]);
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sprintf(env, "REQUEST_METHOD=%s", request->method);
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putenv(env);
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if(request->method_type == GET) {
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sprintf(env, "QUERY_STRING=%s", request->query_string);
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putenv(env);
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}
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else { /* POST */
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sprintf(env, "CONTENT_LENGTH=%d", content_length);
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putenv(env);
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}
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execl(request->path, request->path, request->method, request->query_string, NULL);
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exit(0);
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}
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else { /* parent */
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char buf[1024];
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dup2(cgi_output[1], 1);
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dup2(cgi_input[0], 0);
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close(cgi_output[0]);
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close(cgi_input[1]);
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sprintf(env, "REQUEST_METHOD=%s", request->method);
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putenv(env);
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if(request->method_type == GET) {
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sprintf(env, "QUERY_STRING=%s", request->query_string);
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putenv(env);
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}
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else { /* POST */
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sprintf(env, "CONTENT_LENGTH=%d", content_length);
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putenv(env);
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}
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execl(request->path, request->path, request->method, request->query_string, NULL);
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exit(0);
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}
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else { /* parent */
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char buf[1024];
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close(cgi_output[1]);
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close(cgi_input[0]);
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if(request->method_type == POST) {
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#if __APPLE__
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for(i = 0; i < content_length;) {
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int cnt = recv(client, buf, 1024, 0);
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if(cnt > 0) {
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write(cgi_input[1], buf, cnt);
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i += cnt;
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}
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}
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#else
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int len = 0;
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while(len < content_length) {
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int delta = splice(client, NULL, cgi_input[1], NULL, content_length - len, SPLICE_F_GIFT);
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if(delta < 0) {
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cannot_execute(client);
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break;
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}
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len += delta;
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}
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#endif
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}
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close(cgi_output[1]);
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close(cgi_input[0]);
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if(request->method_type == POST) {
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#if __APPLE__
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for(i = 0; i < content_length;) {
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int cnt = recv(client, buf, 1024, 0);
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if(cnt > 0) {
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write(cgi_input[1], buf, cnt);
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i += cnt;
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}
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}
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#else
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int len = 0;
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while(len < content_length) {
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int delta = splice(client, NULL, cgi_input[1], NULL, content_length - len, SPLICE_F_GIFT);
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if(delta < 0) {
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cannot_execute(client);
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break;
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}
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len += delta;
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}
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#endif
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}
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uint32_t cnt = 0;
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char* p =(char*)&cnt;
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while(p -(char*)&cnt < sizeof(uint32_t)) {
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int offset = read(cgi_output[0], p, sizeof(uint32_t));
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if(offset > 0) p += offset;
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else cannot_execute(client);
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}
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printf("cgi msg cnt: %u bytes.\n", cnt);
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if(cnt > 0) {
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int len = 0;
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#if __APPLE__
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char* data = malloc(cnt);
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while(len < cnt) {
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len += read(cgi_output[0], data, cnt);
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send(client, data, len, 0);
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}
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if(data) free(data);
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#else
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while(len < cnt) {
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int delta = splice(cgi_output[0], NULL, client, NULL, cnt - len, SPLICE_F_GIFT);
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if(delta < 0) {
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cannot_execute(client);
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break;
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}
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len += delta;
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}
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#endif
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printf("cgi send %d bytes\n", len);
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}
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close(cgi_output[0]);
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close(cgi_input[1]);
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waitpid(pid, &i, 0);
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}
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uint32_t cnt = 0;
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char* p = (char*)&cnt;
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while(p - (char*)&cnt < sizeof(uint32_t)) {
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int offset = read(cgi_output[0], p, sizeof(uint32_t));
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if(offset > 0) p += offset;
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else cannot_execute(client);
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}
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printf("CGI msg len: %u bytes.\n", cnt);
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if(cnt > 0) {
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int len = 0;
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#if __APPLE__
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char* data = malloc(cnt);
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while(len < cnt) {
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len += read(cgi_output[0], data, cnt);
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send(client, data, len, 0);
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}
|
||||
if(data) free(data);
|
||||
#else
|
||||
while(len < cnt) {
|
||||
int delta = splice(cgi_output[0], NULL, client, NULL, cnt - len, SPLICE_F_GIFT);
|
||||
if(delta < 0) {
|
||||
cannot_execute(client);
|
||||
break;
|
||||
}
|
||||
len += delta;
|
||||
}
|
||||
#endif
|
||||
printf("CGI send %d bytes\n", len);
|
||||
}
|
||||
close(cgi_output[0]);
|
||||
close(cgi_input[1]);
|
||||
waitpid(pid, &i, 0);
|
||||
}
|
||||
}
|
||||
|
||||
/**********************************************************************/
|
||||
@@ -324,17 +314,14 @@ static void execute_cgi(int client, int content_length, const HTTP_REQUEST* requ
|
||||
/* Parameters: path of the file */
|
||||
/**********************************************************************/
|
||||
static uint32_t get_file_size(const char *filepath, int client) {
|
||||
struct stat statbuf;
|
||||
uint32_t sz;
|
||||
if(!stat(filepath, &statbuf)) {
|
||||
sz = statbuf.st_size;
|
||||
printf("file size: %u\n", sz);
|
||||
return sz;
|
||||
}
|
||||
else {
|
||||
cannot_execute(client);
|
||||
error_die("stat");
|
||||
}
|
||||
struct stat statbuf;
|
||||
uint32_t sz;
|
||||
if(!stat(filepath, &statbuf)) {
|
||||
sz = statbuf.st_size;
|
||||
printf("[%u] - ", sz);
|
||||
return sz;
|
||||
}
|
||||
else return 0;
|
||||
}
|
||||
|
||||
/**********************************************************************/
|
||||
@@ -351,37 +338,33 @@ static uint32_t get_file_size(const char *filepath, int client) {
|
||||
* Returns: the number of bytes stored(excluding null) */
|
||||
/**********************************************************************/
|
||||
static int get_line(int sock, char *buf, int size) {
|
||||
int i = 0;
|
||||
char c = '\0';
|
||||
int n;
|
||||
int i = 0;
|
||||
char c = '\0';
|
||||
int n;
|
||||
|
||||
while((i < size - 1) &&(c != '\n')) {
|
||||
n = recv(sock, &c, 1, 0);
|
||||
/* DEBUG printf("%02X\n", c); */
|
||||
if(n > 0) {
|
||||
if(c == '\r') {
|
||||
n = recv(sock, &c, 1, MSG_PEEK);
|
||||
/* DEBUG printf("%02X\n", c); */
|
||||
if((n > 0) &&(c == '\n'))
|
||||
recv(sock, &c, 1, 0);
|
||||
else c = '\n';
|
||||
}
|
||||
buf[i] = c;
|
||||
i++;
|
||||
}
|
||||
else c = '\n';
|
||||
}
|
||||
buf[i] = '\0';
|
||||
while((i < size - 1) && (c != '\n')) {
|
||||
n = recv(sock, &c, 1, 0);
|
||||
if(n > 0) {
|
||||
if(c == '\r') {
|
||||
n = recv(sock, &c, 1, MSG_PEEK);
|
||||
/* DEBUG printf("%02X\n", c); */
|
||||
if((n > 0) && (c == '\n')) recv(sock, &c, 1, 0);
|
||||
else c = '\n';
|
||||
}
|
||||
buf[i++] = c;
|
||||
} else c = '\n';
|
||||
}
|
||||
buf[i] = '\0';
|
||||
|
||||
return(i);
|
||||
return i;
|
||||
}
|
||||
|
||||
/**********************************************************************/
|
||||
/* Handle thread quit signal
|
||||
/**********************************************************************/
|
||||
static void handle_quit(int signo) {
|
||||
perror("handle");
|
||||
pthread_exit(NULL);
|
||||
perror("handle");
|
||||
pthread_exit(NULL);
|
||||
}
|
||||
|
||||
/**********************************************************************/
|
||||
@@ -390,26 +373,29 @@ static void handle_quit(int signo) {
|
||||
* the name of the file */
|
||||
/**********************************************************************/
|
||||
#define ADD_HERDER(h)\
|
||||
strcpy(buf + offset, h);\
|
||||
offset += sizeof(h) - 1;
|
||||
strcpy(buf + offset, h);\
|
||||
offset += sizeof(h) - 1;
|
||||
#define ADD_HERDER_PARAM(h, p)\
|
||||
sprintf(buf + offset, h,(p));\
|
||||
offset += strlen(buf + offset);
|
||||
sprintf(buf + offset, h,(p));\
|
||||
offset += strlen(buf + offset);
|
||||
#define EXTNM_IS_NOT(name)(strcmp(filepath+extpos, name))
|
||||
|
||||
#define HTTP200 "HTTP/1.0 200 OK\r\n"
|
||||
#define CONTENT_TYPE "Content-Type: %s\r\n"
|
||||
#define CONTENT_LEN "Content-Length: %d\r\n"
|
||||
static void headers(int client, const char *filepath) {
|
||||
char buf[1024];
|
||||
uint32_t offset = 0;
|
||||
uint32_t extpos = strlen(filepath) - 4;
|
||||
|
||||
ADD_HERDER(HTTP200 SERVER_STRING);
|
||||
ADD_HERDER_PARAM(CONTENT_TYPE, EXTNM_IS_NOT("html")?(EXTNM_IS_NOT(".css")?(EXTNM_IS_NOT(".ico")?"text/plain":"image/x-icon"):"text/css"):"text/html");
|
||||
ADD_HERDER_PARAM(CONTENT_LEN "\r\n", get_file_size(filepath, client));
|
||||
send(client, buf, offset, 0);
|
||||
puts("200 OK.");
|
||||
static int headers(int client, const char *filepath) {
|
||||
char buf[1024];
|
||||
uint32_t offset = 0;
|
||||
uint32_t extpos = strlen(filepath) - 4;
|
||||
uint32_t file_size = get_file_size(filepath, client);
|
||||
if(file_size) {
|
||||
ADD_HERDER(HTTP200 SERVER_STRING);
|
||||
ADD_HERDER_PARAM(CONTENT_TYPE, EXTNM_IS_NOT("html")?(EXTNM_IS_NOT(".css")?(EXTNM_IS_NOT(".ico")?"text/plain":"image/x-icon"):"text/css"):"text/html");
|
||||
ADD_HERDER_PARAM(CONTENT_LEN "\r\n", file_size);
|
||||
send(client, buf, offset, 0);
|
||||
puts("200 OK.");
|
||||
return 1;
|
||||
} else return 0;
|
||||
}
|
||||
|
||||
/**********************************************************************/
|
||||
@@ -417,8 +403,8 @@ static void headers(int client, const char *filepath) {
|
||||
/**********************************************************************/
|
||||
#define HTTP404 "HTTP/1.0 404 NOT FOUND\r\n" SERVER_STRING "Content-Type: text/html\r\n\r\n<HTML><TITLE>Not Found</TITLE>\r\n<BODY><P>The server could not fulfill\r\nyour request because the resource specified\r\nis unavailable or nonexistent.\r\n</BODY></HTML>\r\n"
|
||||
static void not_found(int client) {
|
||||
send(client, HTTP404, sizeof(HTTP404)-1, 0);
|
||||
puts("404 Not Found.");
|
||||
send(client, HTTP404, sizeof(HTTP404)-1, 0);
|
||||
puts("404 Not Found.");
|
||||
}
|
||||
|
||||
/**********************************************************************/
|
||||
@@ -429,15 +415,14 @@ static void not_found(int client) {
|
||||
* the name of the file to serve */
|
||||
/**********************************************************************/
|
||||
static void serve_file(int client, const char *filename) {
|
||||
FILE *resource = NULL;
|
||||
FILE *resource = NULL;
|
||||
|
||||
resource = fopen(filename, "rb");
|
||||
if(resource == NULL) not_found(client);
|
||||
else {
|
||||
headers(client, filename);
|
||||
cat(client, resource);
|
||||
}
|
||||
fclose(resource);
|
||||
resource = fopen(filename, "rb");
|
||||
if(resource) {
|
||||
if(headers(client, filename)) cat(client, resource);
|
||||
else not_found(client);
|
||||
fclose(resource);
|
||||
} else not_found(client);
|
||||
}
|
||||
|
||||
/**********************************************************************/
|
||||
@@ -449,51 +434,41 @@ static void serve_file(int client, const char *filename) {
|
||||
* Returns: the socket */
|
||||
/**********************************************************************/
|
||||
#ifdef LISTEN_ON_IPV6
|
||||
static socklen_t struct_len = sizeof(struct sockaddr_in6);
|
||||
static struct sockaddr_in6 name;
|
||||
static socklen_t struct_len = sizeof(struct sockaddr_in6);
|
||||
static struct sockaddr_in6 name;
|
||||
#else
|
||||
static socklen_t struct_len = sizeof(struct sockaddr_in);
|
||||
static struct sockaddr_in name;
|
||||
static socklen_t struct_len = sizeof(struct sockaddr_in);
|
||||
static struct sockaddr_in name;
|
||||
#endif
|
||||
|
||||
static int startup(uint16_t *port) {
|
||||
int httpd = 0;
|
||||
int httpd = 0;
|
||||
|
||||
#ifdef LISTEN_ON_IPV6
|
||||
name.sin6_family = AF_INET6;
|
||||
name.sin6_port = htons(*port);
|
||||
bzero(&(name.sin6_addr), sizeof(name.sin6_addr));
|
||||
httpd = socket(PF_INET6, SOCK_STREAM, 0);
|
||||
#else
|
||||
name.sin_family = AF_INET;
|
||||
name.sin_port = htons(*port);
|
||||
name.sin_addr.s_addr = INADDR_ANY;
|
||||
bzero(&(name.sin_zero), 8);
|
||||
httpd = socket(AF_INET, SOCK_STREAM, 0);
|
||||
#endif
|
||||
if(httpd == -1) error_die("socket");
|
||||
if(bind(httpd,(struct sockaddr *)&name, struct_len) < 0) error_die("bind");
|
||||
/* if dynamically allocating a port */
|
||||
if(*port == 0) {
|
||||
if(getsockname(httpd,(struct sockaddr *)&name, &struct_len) == -1) error_die("getsockname");
|
||||
#ifdef LISTEN_ON_IPV6
|
||||
*port = ntohs(name.sin6_port);
|
||||
#else
|
||||
*port = ntohs(name.sin_port);
|
||||
#endif
|
||||
}
|
||||
if(listen(httpd, 5) < 0) error_die("listen");
|
||||
return(httpd);
|
||||
}
|
||||
|
||||
/**********************************************************************/
|
||||
/* Inform the client that the requested web method has not been
|
||||
* implemented.
|
||||
* Parameter: the client socket */
|
||||
/**********************************************************************/
|
||||
#define HTTP414 "HTTP/1.0 414 Request-URI Too Long\r\n" SERVER_STRING "Content-Type: text/html\r\n\r\n<HTML><HEAD><TITLE>Request-URI Too Long\r\n</TITLE></HEAD>\r\n<BODY><P>HTTP request url length is over 254 chars.\r\n</BODY></HTML>\r\n"
|
||||
static void toolong(int client) {
|
||||
send(client, HTTP414, sizeof(HTTP414)-1, 0);
|
||||
#ifdef LISTEN_ON_IPV6
|
||||
name.sin6_family = AF_INET6;
|
||||
name.sin6_port = htons(*port);
|
||||
bzero(&(name.sin6_addr), sizeof(name.sin6_addr));
|
||||
httpd = socket(PF_INET6, SOCK_STREAM, 0);
|
||||
#else
|
||||
name.sin_family = AF_INET;
|
||||
name.sin_port = htons(*port);
|
||||
name.sin_addr.s_addr = INADDR_ANY;
|
||||
bzero(&(name.sin_zero), 8);
|
||||
httpd = socket(AF_INET, SOCK_STREAM, 0);
|
||||
#endif
|
||||
if(httpd == -1) error_die("socket");
|
||||
if(bind(httpd,(struct sockaddr *)&name, struct_len) < 0) error_die("bind");
|
||||
/* if dynamically allocating a port */
|
||||
if(*port == 0) {
|
||||
if(getsockname(httpd,(struct sockaddr *)&name, &struct_len) == -1) error_die("getsockname");
|
||||
#ifdef LISTEN_ON_IPV6
|
||||
*port = ntohs(name.sin6_port);
|
||||
#else
|
||||
*port = ntohs(name.sin_port);
|
||||
#endif
|
||||
}
|
||||
if(listen(httpd, 5) < 0) error_die("listen");
|
||||
return(httpd);
|
||||
}
|
||||
|
||||
/**********************************************************************/
|
||||
@@ -503,65 +478,66 @@ static void toolong(int client) {
|
||||
/**********************************************************************/
|
||||
#define HTTP501 "HTTP/1.0 501 Method Not Implemented\r\n" SERVER_STRING "Content-Type: text/html\r\n\r\n<HTML><HEAD><TITLE>Method Not Implemented\r\n</TITLE></HEAD>\r\n<BODY><P>HTTP request method not supported.\r\n</BODY></HTML>\r\n"
|
||||
static void unimplemented(int client) {
|
||||
send(client, HTTP501, sizeof(HTTP501)-1, 0);
|
||||
send(client, HTTP501, sizeof(HTTP501)-1, 0);
|
||||
puts("501 Method Not Implemented.");
|
||||
}
|
||||
|
||||
/**********************************************************************/
|
||||
/* simple-http-server
|
||||
* Usage: simple-http-server -d port chdir
|
||||
* Usage: simple-http-server [-d] [-p <port>] [-r <rootdir>] [-u <uid>]
|
||||
/**********************************************************************/
|
||||
#define ACCEPT_CLI() {\
|
||||
while(1) {\
|
||||
client_sock = accept(server_sock,(struct sockaddr *)&client_name, &client_name_len);\
|
||||
if(client_sock == -1) break;\
|
||||
signal(SIGQUIT, handle_quit);\
|
||||
signal(SIGPIPE, handle_quit);\
|
||||
if(pthread_create(&newthread, NULL, accept_request, client_sock) != 0) perror("pthread_create");\
|
||||
}\
|
||||
close(client_sock);\
|
||||
error_die("accept");\
|
||||
#define accept_client(client_sock, server_sock, client_name, client_name_len, newthread) {\
|
||||
while(1) {\
|
||||
client_sock = accept(server_sock,(struct sockaddr *)&client_name, &client_name_len);\
|
||||
if(client_sock == -1) break;\
|
||||
signal(SIGQUIT, handle_quit);\
|
||||
signal(SIGPIPE, handle_quit);\
|
||||
if(pthread_create(&newthread, NULL, accept_request, client_sock) != 0) perror("pthread_create");\
|
||||
}\
|
||||
close(client_sock);\
|
||||
error_die("accept");\
|
||||
}
|
||||
|
||||
#define argequ(arg) (*(uint16_t*)argv[i] == *(uint16_t*)(arg))
|
||||
int main(int argc, char **argv) {
|
||||
if(argc > 8) puts("Usage:\tsimple-http-server [-d] [-p <port>] [-r <rootdir>] [-u <uid>]\n -d:\trun as daemon.\n -p:\tif not set, choose a random one.\n -r:\thttp root dir.\n -u:\trun as this uid.");
|
||||
else {
|
||||
int as_daemon = 0;
|
||||
uint16_t port = 0;
|
||||
char *cdir = "./";
|
||||
uid_t uid = -1;
|
||||
int server_sock = -1;
|
||||
int client_sock = -1;
|
||||
int pid = -1;
|
||||
struct sockaddr_in client_name;
|
||||
socklen_t client_name_len = sizeof(client_name);
|
||||
pthread_t newthread;
|
||||
if(argc > 8) puts("Usage:\tsimple-http-server [-d] [-p <port>] [-r <rootdir>] [-u <uid>]\n -d:\trun as daemon.\n -p:\tif not set, choose a random one.\n -r:\thttp root dir.\n -u:\trun as this uid.");
|
||||
else {
|
||||
int as_daemon = 0;
|
||||
uint16_t port = 0;
|
||||
char *cdir = "./";
|
||||
uid_t uid = -1;
|
||||
int server_sock = -1;
|
||||
int client_sock = -1;
|
||||
int pid = -1;
|
||||
struct sockaddr_in client_name;
|
||||
socklen_t client_name_len = sizeof(client_name);
|
||||
pthread_t newthread;
|
||||
|
||||
for(int i = 1; i < argc; i++) {
|
||||
if(!as_daemon && argequ("-d")) as_daemon = 1;
|
||||
else if(argequ("-p")) port = (uint16_t)atoi(argv[i + 1]);
|
||||
else if(argequ("-r")) cdir = argv[i + 1];
|
||||
else if(argequ("-u")) uid = atoi(argv[i + 1]);
|
||||
}
|
||||
for(int i = 1; i < argc; i++) {
|
||||
if(!as_daemon && argequ("-d")) as_daemon = 1;
|
||||
else if(argequ("-p")) port = (uint16_t)atoi(argv[i + 1]);
|
||||
else if(argequ("-r")) cdir = argv[i + 1];
|
||||
else if(argequ("-u")) uid = atoi(argv[i + 1]);
|
||||
}
|
||||
|
||||
if(chdir(cdir)) error_die("chdir");
|
||||
server_sock = startup(&port);
|
||||
printf("httpd running on 0.0.0.0:%d at %s\n", port, cdir);
|
||||
if(as_daemon) {
|
||||
if(uid > 0) {
|
||||
setuid(uid);
|
||||
setgid(uid);
|
||||
}
|
||||
pid = fork();
|
||||
if(pid == 0) pid = fork();
|
||||
else return 0;
|
||||
while(pid > 0) { //主进程监控子进程状态，如果子进程异常终止则重启之
|
||||
wait(NULL);
|
||||
puts("Server subprocess exited. Restart...");
|
||||
pid = fork();
|
||||
}
|
||||
if(pid < 0) perror("fork");
|
||||
else ACCEPT_CLI();
|
||||
} else ACCEPT_CLI();
|
||||
}
|
||||
if(chdir(cdir)) error_die("chdir");
|
||||
server_sock = startup(&port);
|
||||
printf("httpd running on 0.0.0.0:%d at %s\n", port, cdir);
|
||||
if(as_daemon) {
|
||||
if(uid > 0) {
|
||||
setuid(uid);
|
||||
setgid(uid);
|
||||
}
|
||||
pid = fork();
|
||||
if(pid == 0) pid = fork();
|
||||
else return 0;
|
||||
while(pid > 0) { // 主进程监控子进程状态，如果子进程异常终止则重启之
|
||||
wait(NULL);
|
||||
puts("Server subprocess exited. Restart...");
|
||||
pid = fork();
|
||||
}
|
||||
if(pid < 0) perror("fork");
|
||||
else accept_client(client_sock, server_sock, client_name, client_name_len, newthread);
|
||||
} else accept_client(client_sock, server_sock, client_name, client_name_len, newthread);
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user