diff options
Diffstat (limited to 'src/get-freebusy-report.c')
| -rw-r--r-- | src/get-freebusy-report.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/src/get-freebusy-report.c b/src/get-freebusy-report.c new file mode 100644 index 0000000..f75ab92 --- /dev/null +++ b/src/get-freebusy-report.c @@ -0,0 +1,140 @@ +/* vim: set textwidth=80 tabstop=4 smarttab: */ + +/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include "get-freebusy-report.h" +#include <glib.h> +#include <curl/curl.h> +#include <string.h> + +/** + * A static literal string containing the first part of the calendar query. + * The actual VEVENT to search for is added at runtime. + */ +static const char* getrange_request_head = +"<?xml version=\"1.0\" encoding=\"utf-8\" ?>" +"<C:free-busy-query xmlns:D=\"DAV:\"" +" xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"; + +/** + * A static literal string containing the last part of the calendar query + */ +static const char* getrange_request_foot = +"</C:free-busy-query>\r\n"; + +/** + * Function for getting freebusy within a time range from collection. + * @param settings A pointer to caldav_settings. @see caldav_settings + * @param error A pointer to caldav_error. @see caldav_error + * @return TRUE in case of error, FALSE otherwise. + */ +gboolean caldav_freebusy(caldav_settings* settings, caldav_error* error) { + CURL* curl; + CURLcode res = 0; + char error_buf[CURL_ERROR_SIZE + 1]; + struct config_data data; + struct MemoryStruct chunk; + struct MemoryStruct headers; + struct curl_slist *http_header = NULL; + gboolean result = FALSE; + gchar* request = NULL; + + chunk.memory = NULL; /* we expect realloc(NULL, size) to work */ + chunk.size = 0; /* no data at this point */ + headers.memory = NULL; + headers.size = 0; + + curl = get_curl(settings); + if (!curl) { + error->code = -1; + error->str = g_strdup("Could not initialize libcurl"); + g_free(settings->file); + settings->file = NULL; + return TRUE; + } + + http_header = curl_slist_append(http_header, + "Content-Type: application/xml; charset=\"utf-8\""); + http_header = curl_slist_append(http_header, "Depth: 1"); + http_header = curl_slist_append(http_header, "Expect:"); + http_header = curl_slist_append(http_header, "Transfer-Encoding:"); + http_header = curl_slist_append(http_header, "Connection: close"); + data.trace_ascii = settings->trace_ascii; + curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header); + /* send all data to this function */ + curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback); + /* we pass our 'chunk' struct to the callback function */ + curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk); + /* send all data to this function */ + curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback); + /* we pass our 'headers' struct to the callback function */ + curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers); + curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf); + if (settings->debug) { + curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace); + curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data); + curl_easy_setopt(curl, CURLOPT_VERBOSE, 1); + } + request = g_strdup_printf( + "%s\r\n<C:time-range start=\"%s\"\r\n end=\"%s\"/>\r\n%s", + getrange_request_head, get_caldav_datetime(&settings->start), + get_caldav_datetime(&settings->end), getrange_request_foot); + /* enable uploading */ + curl_easy_setopt(curl, CURLOPT_POSTFIELDS, request); + curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(request)); + curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "REPORT"); + curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1); + curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1); + curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL); + res = curl_easy_perform(curl); + if (res != 0) { + error->code = -1; + error->str = g_strdup_printf("%s", error_buf); + g_free(settings->file); + settings->file = NULL; + result = TRUE; + } + else { + long code; + res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code); + if (code != 200) { + error->code = code; + error->str = g_strdup(headers.memory); + result = TRUE; + } + else { + /*gchar* report; + report = parse_caldav_report(chunk.memory, "calendar-data", "VFREEBUSY"); + settings->file = g_strdup(report);*/ + settings->file = g_strdup(chunk.memory); + /*g_free(report);*/ + } + } + g_free(request); + if (chunk.memory) + free(chunk.memory); + if (headers.memory) + free(headers.memory); + curl_slist_free_all(http_header); + curl_easy_cleanup(curl); + return result; +} |