* correct all GetNextHashPos() calls to have const chars
[citadel.git] / webcit / webserver.c
index 91dc4d12ee84bbf049598b6c7a81f57ae934b315..32887f47c642a0a0bd0421431bb751bde7aa1c07 100644 (file)
@@ -13,7 +13,7 @@
 #if HAVE_BACKTRACE
 #include <execinfo.h>
 #endif
-
+#include "modules_init.h"
 #ifndef HAVE_SNPRINTF
 int vsnprintf(char *buf, size_t max, const char *fmt, va_list argp);
 #endif
@@ -39,10 +39,12 @@ char socket_dir[PATH_MAX];                  /* where to talk to our citadel server */
 static const char editor_absolut_dir[PATH_MAX]=EDITORDIR;      /* nailed to what configure gives us. */
 static char static_dir[PATH_MAX];              /* calculated on startup */
 static char static_local_dir[PATH_MAX];                /* calculated on startup */
+static char static_icon_dir[PATH_MAX];          /* where should we find our mime icons? */
 char  *static_dirs[]={                         /* needs same sort order as the web mapping */
        (char*)static_dir,                      /* our templates on disk */
        (char*)static_local_dir,                /* user provided templates disk */
-       (char*)editor_absolut_dir               /* the editor on disk */
+       (char*)editor_absolut_dir,              /* the editor on disk */
+       (char*)static_icon_dir                  /* our icons... */
 };
 
 /*
@@ -51,9 +53,9 @@ char  *static_dirs[]={                                /* needs same sort order as the web mapping */
  * (If you add more, remember to increment 'ndirs' below)
  */
 char *static_content_dirs[] = {
-       "static",                     /** static templates */
-       "static.local",               /** site local static templates */
-       "tiny_mce"                    /** rich text editor */
+       "static",                     /* static templates */
+       "static.local",               /* site local static templates */
+       "tiny_mce"                    /* rich text editor */
 };
 
 int ndirs=3;
@@ -108,7 +110,10 @@ int ig_tcp_server(char *ip_addr, int port_number, int queue_len)
        i = 1;
        setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &i, sizeof(i));
 
-       fcntl(s, F_SETFL, O_NONBLOCK);/// TODO
+       fcntl(s, F_SETFL, O_NONBLOCK); /* maide: this statement is incorrect
+                                         there should be a preceding F_GETFL
+                                         and a bitwise OR with the previous
+                                         fd flags */
        
        if (bind(s, (struct sockaddr *) &sin, sizeof(sin)) < 0) {
                lprintf(1, "Can't bind: %s\n", strerror(errno));
@@ -124,9 +129,9 @@ int ig_tcp_server(char *ip_addr, int port_number, int queue_len)
 
 
 /*
- * \brief Create a Unix domain socket and listen on it
- * \param sockpath file name of the unix domain socket
- * \param queue_len Number of incoming connections to allow in the queue
+ * Create a Unix domain socket and listen on it
+ * sockpath - file name of the unix domain socket
+ * queue_len - Number of incoming connections to allow in the queue
  */
 int ig_uds_server(char *sockpath, int queue_len)
 {
@@ -140,7 +145,7 @@ int ig_uds_server(char *sockpath, int queue_len)
 
        i = unlink(sockpath);
        if (i != 0) if (errno != ENOENT) {
-               lprintf(1, "webserver: can't unlink %s: %s\n",
+               lprintf(1, "webcit: can't unlink %s: %s\n",
                        sockpath, strerror(errno));
                exit(WC_EXIT_BIND);
        }
@@ -151,19 +156,19 @@ int ig_uds_server(char *sockpath, int queue_len)
 
        s = socket(AF_UNIX, SOCK_STREAM, 0);
        if (s < 0) {
-               lprintf(1, "webserver: Can't create a socket: %s\n",
+               lprintf(1, "webcit: Can't create a socket: %s\n",
                        strerror(errno));
                exit(WC_EXIT_BIND);
        }
 
        if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
-               lprintf(1, "webserver: Can't bind: %s\n",
+               lprintf(1, "webcit: Can't bind: %s\n",
                        strerror(errno));
                exit(WC_EXIT_BIND);
        }
 
        if (listen(s, actual_queue_len) < 0) {
-               lprintf(1, "webserver: Can't listen: %s\n",
+               lprintf(1, "webcit: Can't listen: %s\n",
                        strerror(errno));
                exit(WC_EXIT_BIND);
        }
@@ -176,15 +181,17 @@ int ig_uds_server(char *sockpath, int queue_len)
 
 
 /*
- * \brief Read data from the client socket.
- * \param sock socket fd to read from
- * \param buf buffer to read into 
- * \param bytes number of bytes to read
- * \param timeout Number of seconds to wait before timing out
- * \return values are\
- *      1       Requested number of bytes has been read.\
- *      0       Request timed out.\
- *        -1           Connection is broken, or other error.
+ * Read data from the client socket.
+ *
+ * sock                socket fd to read from
+ * buf         buffer to read into 
+ * bytes       number of bytes to read
+ * timeout     Number of seconds to wait before timing out
+ *
+ * Possible return values:
+ *      1       Requested number of bytes has been read.
+ *      0       Request timed out.
+ *     -1      Connection is broken, or other error.
  */
 int client_read_to(int sock, char *buf, int bytes, int timeout)
 {
@@ -230,176 +237,117 @@ int client_read_to(int sock, char *buf, int bytes, int timeout)
        return (1);
 }
 
-/*
- * \brief write data to the client
- * \param buf data to write to the client
- * \param count size of buffer
- */
-ssize_t client_write(const void *buf, size_t count)
-{
-       char *newptr;
-       size_t newalloc;
-
-       if (WC->burst != NULL) {
-               if ((WC->burst_len + count) >= WC->burst_alloc) {
-                       newalloc = (WC->burst_alloc * 2);
-                       if ((WC->burst_len + count) >= newalloc) {
-                               newalloc += count;
-                       }
-                       newptr = realloc(WC->burst, newalloc);
-                       if (newptr != NULL) {
-                               WC->burst = newptr;
-                               WC->burst_alloc = newalloc;
-                       }
-               }
-               if ((WC->burst_len + count) < WC->burst_alloc) {
-                       memcpy(&WC->burst[WC->burst_len], buf, count);
-                       WC->burst_len += count;
-                       return (count);
-               }
-               else {
-                       return(-1);
-               }
-       }
-#ifdef HAVE_OPENSSL
-       if (is_https) {
-               client_write_ssl((char *) buf, count);
-               return (count);
-       }
-#endif
-#ifdef HTTP_TRACING
-       write(2, "\033[34m", 5);
-       write(2, buf, count);
-       write(2, "\033[30m", 5);
-#endif
-       return (write(WC->http_sock, buf, count));
-}
-
 /*
  * \brief Begin buffering HTTP output so we can transmit it all in one write operation later.
  */
 void begin_burst(void)
 {
-       if (WC->burst != NULL) {
-               free(WC->burst);
-               WC->burst = NULL;
-       }
-       WC->burst_len = 0;
-       WC->burst_alloc = 32768;
-       WC->burst = malloc(WC->burst_alloc);
+       if (WC->WBuf == NULL)
+               WC->WBuf = NewStrBufPlain(NULL, 32768);
 }
 
 
 /*
- * \brief uses the same calling syntax as compress2(), but it
- * creates a stream compatible with HTTP "Content-encoding: gzip"
+ * \brief Finish buffering HTTP output.  [Compress using zlib and] output with a Content-Length: header.
  */
-#ifdef HAVE_ZLIB
-#define DEF_MEM_LEVEL 8 /*< memlevel??? */
-#define OS_CODE 0x03   /*< unix */
-int ZEXPORT compress_gzip(Bytef * dest,         /*< compressed buffer*/
-                         size_t * destLen,     /*< length of the compresed data */
-                         const Bytef * source, /*< source to encode */
-                         uLong sourceLen,      /*< length of source to encode */
-                         int level)            /*< compression level */
+long end_burst(void)
 {
-       const int gz_magic[2] = { 0x1f, 0x8b }; /* gzip magic header */
-
-       /* write gzip header */
-       snprintf((char *) dest, *destLen, 
-                "%c%c%c%c%c%c%c%c%c%c",
-                gz_magic[0], gz_magic[1], Z_DEFLATED,
-                0 /*flags */ , 0, 0, 0, 0 /*time */ , 0 /* xflags */ ,
-                OS_CODE);
-
-       /* normal deflate */
-       z_stream stream;
-       int err;
-       stream.next_in = (Bytef *) source;
-       stream.avail_in = (uInt) sourceLen;
-       stream.next_out = dest + 10L;   // after header
-       stream.avail_out = (uInt) * destLen;
-       if ((uLong) stream.avail_out != *destLen)
-               return Z_BUF_ERROR;
-
-       stream.zalloc = (alloc_func) 0;
-       stream.zfree = (free_func) 0;
-       stream.opaque = (voidpf) 0;
-
-       err = deflateInit2(&stream, level, Z_DEFLATED, -MAX_WBITS,
-                          DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY);
-       if (err != Z_OK)
-               return err;
-
-       err = deflate(&stream, Z_FINISH);
-       if (err != Z_STREAM_END) {
-               deflateEnd(&stream);
-               return err == Z_OK ? Z_BUF_ERROR : err;
-       }
-       *destLen = stream.total_out + 10L;
-
-       /* write CRC and Length */
-       uLong crc = crc32(0L, source, sourceLen);
-       int n;
-       for (n = 0; n < 4; ++n, ++*destLen) {
-               dest[*destLen] = (int) (crc & 0xff);
-               crc >>= 8;
-       }
-       uLong len = stream.total_in;
-       for (n = 0; n < 4; ++n, ++*destLen) {
-               dest[*destLen] = (int) (len & 0xff);
-               len >>= 8;
+       struct wcsession *WCC = WC;
+        const char *ptr, *eptr;
+        long count;
+       ssize_t res;
+        fd_set wset;
+        int fdflags;
+
+#ifdef HAVE_ZLIB
+       /* Perform gzip compression, if enabled and supported by client */
+       if ((WCC->gzip_ok) && CompressBuffer(WCC->WBuf))
+       {
+               hprintf("Content-encoding: gzip\r\n");
        }
-       err = deflateEnd(&stream);
-       return err;
-}
-#endif
+#endif /* HAVE_ZLIB */
 
-/*
- * \brief Finish buffering HTTP output.  [Compress using zlib and] output with a Content-Length: header.
- */
-void end_burst(void)
-{
-       size_t the_len;
-       char *the_data;
+       hprintf("Content-length: %d\r\n\r\n", StrLength(WCC->WBuf));
 
-       if (WC->burst == NULL)
-               return;
+       ptr = ChrPtr(WCC->HBuf);
+       count = StrLength(WCC->HBuf);
+       eptr = ptr + count;
 
-       the_len = WC->burst_len;
-       the_data = WC->burst;
+#ifdef HAVE_OPENSSL
+       if (is_https) {
+               client_write_ssl(ptr, StrLength(WCC->HBuf));
+               return (count);
+       }
+#endif
 
-       WC->burst_len = 0;
-       WC->burst_alloc = 0;
-       WC->burst = NULL;
+       
+#ifdef HTTP_TRACING
+       
+       write(2, "\033[34m", 5);
+       write(2, ptr, StrLength(WCC->WBuf));
+       write(2, "\033[30m", 5);
+#endif
+       fdflags = fcntl(WC->http_sock, F_GETFL);
+
+        while (ptr < eptr) {
+                if ((fdflags & O_NONBLOCK) == O_NONBLOCK) {
+                        FD_ZERO(&wset);
+                        FD_SET(WCC->http_sock, &wset);
+                        if (select(WCC->http_sock + 1, NULL, &wset, NULL, NULL) == -1) {
+                                lprintf(2, "client_write: Socket select failed (%s)\n", strerror(errno));
+                                return -1;
+                        }
+                }
+
+                if ((res = write(WCC->http_sock, 
+                                ptr,
+                                count)) == -1) {
+                        lprintf(2, "client_write: Socket write failed (%s)\n", strerror(errno));
+                        return res;
+                }
+                count -= res;
+               ptr += res;
+        }
+
+       ptr = ChrPtr(WCC->WBuf);
+       count = StrLength(WCC->WBuf);
+       eptr = ptr + count;
 
-#ifdef HAVE_ZLIB
-       /* Perform gzip compression, if enabled and supported by client */
-       if (WC->gzip_ok) {
-               char *compressed_data = NULL;
-               size_t compressed_len;
-
-               compressed_len = ((the_len * 101) / 100) + 100;
-               compressed_data = malloc(compressed_len);
-
-               if (compress_gzip((Bytef *) compressed_data,
-                                 &compressed_len,
-                                 (Bytef *) the_data,
-                                 (uLongf) the_len, Z_BEST_SPEED) == Z_OK) {
-                       wprintf("Content-encoding: gzip\r\n");
-                       free(the_data);
-                       the_data = compressed_data;
-                       the_len = compressed_len;
-               } else {
-                       free(compressed_data);
-               }
+#ifdef HAVE_OPENSSL
+       if (is_https) {
+               client_write_ssl(ptr, StrLength(WCC->HBuf));
+               return (count);
        }
-#endif /* HAVE_ZLIB */
+#endif
+
+#ifdef HTTP_TRACING
+       
+       write(2, "\033[34m", 5);
+       write(2, ptr, StrLength(WCC->WBuf));
+       write(2, "\033[30m", 5);
+#endif
 
-       wprintf("Content-length: %d\r\n\r\n", the_len);
-       client_write(the_data, the_len);
-       free(the_data);
-       return;
+        while (ptr < eptr) {
+                if ((fdflags & O_NONBLOCK) == O_NONBLOCK) {
+                        FD_ZERO(&wset);
+                        FD_SET(WCC->http_sock, &wset);
+                        if (select(WCC->http_sock + 1, NULL, &wset, NULL, NULL) == -1) {
+                                lprintf(2, "client_write: Socket select failed (%s)\n", strerror(errno));
+                                return -1;
+                        }
+                }
+
+                if ((res = write(WCC->http_sock, 
+                                ptr,
+                                count)) == -1) {
+                        lprintf(2, "client_write: Socket write failed (%s)\n", strerror(errno));
+                        return res;
+                }
+                count -= res;
+               ptr += res;
+        }
+
+       return StrLength(WCC->WBuf);
 }
 
 
@@ -458,8 +406,8 @@ int client_getln(int sock, char *buf, int bufsiz)
 }
 
 /*
- * \brief shut us down the regular way.
- * param signum the signal we want to forward
+ * \brief Shut us down the regular way.
+ * \param signum the signal we want to forward
  */
 pid_t current_child;
 void graceful_shutdown_watcher(int signum) {
@@ -471,7 +419,7 @@ void graceful_shutdown_watcher(int signum) {
 
 /*
  * \brief shut us down the regular way.
- * param signum the signal we want to forward
+ * \param signum the signal we want to forward
  */
 pid_t current_child;
 void graceful_shutdown(int signum) {
@@ -538,6 +486,7 @@ void start_daemon(char *pid_file)
        
                if (current_child < 0) {
                        perror("fork");
+                       ShutDownLibCitadel ();
                        exit(errno);
                }
        
@@ -592,6 +541,7 @@ void start_daemon(char *pid_file)
        if (pid_file) {
                unlink(pid_file);
        }
+       ShutDownLibCitadel ();
        exit(WEXITSTATUS(status));
 }
 
@@ -632,6 +582,13 @@ void spawn_another_worker_thread()
        pthread_attr_destroy(&attr);
 }
 
+//#define DBG_PRINNT_HOOKS_AT_START
+#ifdef DBG_PRINNT_HOOKS_AT_START
+const char foobuf[32];
+const char *nix(void *vptr) {snprintf(foobuf, 32, "%0x", (long) vptr); return foobuf;}
+#endif 
+void InitTemplateCache(void);
+
 /*
  * \brief Here's where it all begins.
  * \param argc number of commandline args
@@ -659,6 +616,20 @@ int main(int argc, char **argv)
 #endif /* ENABLE_NLS */
        char uds_listen_path[PATH_MAX]; /*< listen on a unix domain socket? */
 
+       HandlerHash = NewHash(1, NULL);
+       PreferenceHooks = NewHash(1, NULL);
+       WirelessTemplateCache = NewHash(1, NULL);
+       WirelessLocalTemplateCache = NewHash(1, NULL);
+       LocalTemplateCache = NewHash(1, NULL);
+       TemplateCache = NewHash(1, NULL);
+       GlobalNS = NewHash(1, NULL);
+       Iterators = NewHash(1, NULL);
+
+
+#ifdef DBG_PRINNT_HOOKS_AT_START
+       dbg_PrintHash(HandlerHash, nix, NULL);
+#endif
+
        /* Ensure that we are linked to the correct version of libcitadel */
        if (libcitadel_version_number() < LIBCITADEL_VERSION_NUMBER) {
                fprintf(stderr, " You are running libcitadel version %d.%02d\n",
@@ -670,9 +641,6 @@ int main(int argc, char **argv)
 
        strcpy(uds_listen_path, "");
 
-       if (getenv("TZ") == NULL)
-               putenv("TZ=UTC");
-
        /* Parse command line */
 #ifdef HAVE_OPENSSL
        while ((a = getopt(argc, argv, "h:i:p:t:x:dD:cfs")) != EOF)
@@ -739,7 +707,7 @@ int main(int argc, char **argv)
                        is_https = 1;
                        break;
                default:
-                       fprintf(stderr, "usage: webserver "
+                       fprintf(stderr, "usage: webcit "
                                "[-i ip_addr] [-p http_port] "
                                "[-t tracefile] [-c] [-f] "
                                "[-d] "
@@ -776,12 +744,15 @@ int main(int argc, char **argv)
        /* initialize the International Bright Young Thing */
 #ifdef ENABLE_NLS
        initialize_locales();
+
        locale = setlocale(LC_ALL, "");
+
        mo = malloc(strlen(webcitdir) + 20);
        lprintf(9, "Message catalog directory: %s\n", bindtextdomain("webcit", LOCALEDIR"/locale"));
        free(mo);
        lprintf(9, "Text domain: %s\n", textdomain("webcit"));
        lprintf(9, "Text domain Charset: %s\n", bind_textdomain_codeset("webcit","UTF8"));
+       preset_locale();
 #endif
 
 
@@ -801,6 +772,8 @@ int main(int argc, char **argv)
        COMPUTE_DIRECTORY(socket_dir);
        basedir=WWWDIR "/static";
        COMPUTE_DIRECTORY(static_dir);
+       basedir=WWWDIR "/static/icons";
+       COMPUTE_DIRECTORY(static_icon_dir);
        basedir=WWWDIR "/static.local";
        COMPUTE_DIRECTORY(static_local_dir);
 
@@ -821,7 +794,11 @@ int main(int argc, char **argv)
        lprintf(9, "Changing directory to %s\n", socket_dir);
        if (chdir(webcitdir) != 0) {
                perror("chdir");
-       }       
+       }
+       LoadIconDir(static_icon_dir);
+       InitTemplateCache();
+
+       initialise_modules();
        initialize_viewdefs();
        initialize_axdefs();
 
@@ -892,6 +869,9 @@ int main(int argc, char **argv)
 
        /* now the original thread becomes another worker */
        worker_entry();
+       ShutDownLibCitadel ();
+       DeleteHash(&HandlerHash);
+       DeleteHash(&PreferenceHooks);
        return 0;
 }
 
@@ -962,11 +942,21 @@ void worker_entry(void)
                                sleeeeeeeeeep(1); // wait so some others might finish...
                                lprintf(2, "master shutdown: cleaning up sessions\n");
                                do_housekeeping();
-#ifdef WEBCIT_WITH_CALENDAR_SERVICE
                                lprintf(2, "master shutdown: cleaning up libical\n");
                                free_zone_directory ();
                                icaltimezone_release_zone_tab ();
                                icalmemory_free_ring ();
+                               ShutDownLibCitadel ();
+                               DeleteHash(&HandlerHash);
+                               DeleteHash(&PreferenceHooks);
+                               DeleteHash(&GlobalNS);
+                               DeleteHash(&WirelessTemplateCache);
+                               DeleteHash(&WirelessLocalTemplateCache);
+                               DeleteHash(&TemplateCache);
+                               DeleteHash(&LocalTemplateCache);
+                               DeleteHash(&Iterators);
+#ifdef ENABLE_NLS
+                               void ShutdownLocale(void);
 #endif
                                lprintf(2, "master shutdown exiting!.\n");                              
                                exit(0);
@@ -1020,7 +1010,7 @@ void worker_entry(void)
 }
 
 /*
- * \brief logprintf. log messages 
+ * \brief print log messages 
  * logs to stderr if loglevel is lower than the verbosity set at startup
  * \param loglevel level of the message
  * \param format the printf like format string