-#define _GNU_SOURCE
+/*
+ * Copyright (c) 1996-2012 by the citadel.org team
+ *
+ * This program is open source software. You can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 3.
+ *
+ * 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.
+ */
+
#include "webcit.h"
#include "webserver.h"
+#define SEARCH_LANG 20 /* how many langs should we parse? */
#ifdef ENABLE_NLS
-
-static const char *AvailLang[] = {
- "de_DE"
+/* actual supported locales */
+const char *AvailLang[] = {
+ "C",
+ "bg_BG",
+ "cs_CZ",
+ "en_US",
+ "da_DK",
+ "de_DE",
+ "el_GR",
+ "en_GB",
+ "es_ES",
+ "et_EE",
+ "fi_FI",
+ "fr_FR",
+ "hu_HU",
+ "it_IT",
+ "nl_NL",
+ "pt_BR",
+ "ru_RU",
+ "zh_CN",
+ "he_IL",
+ "kk_KK",
+ "ro_RO",
+ "sl_SL",
+ "tr_TR",
+ ""
};
+const char **AvailLangLoaded;
+long nLocalesLoaded = 0;
+
+#ifdef HAVE_USELOCALE
+locale_t *wc_locales; /* here we keep the parsed stuff */
+#endif
+
+/* Keep information about one locale */
typedef struct _lang_pref{
- char lang[16];
- char region[16];
- char *match;
- double Priority;
+ char lang[16]; /* the language locale string */
+ char region[16]; /* the region locale string */
+ long priority; /* which priority does it have */
+ int availability; /* do we know it? */
+ int selectedlang; /* is this the selected language? */
} LangStruct;
-/* TODO: we skip the language weightening so far. */
-/* Accept-Language: 'de-de,en-us;q=0.7,en;q=0.3' */
-/* Accept-Language: de,en-ph;q=0.8,en-us;q=0.5,de-at;q=0.3 */
-void httplang_to_locale(const char *LocaleString)
+/* parse browser locale header
+ *
+ * seems as most browsers just do a one after comma value even if more than 10 locales are available. Sample strings:
+ * opera:
+ * Accept-Language: sq;q=1.0,de;q=0.9,as;q=0.8,ar;q=0.7,bn;q=0.6,zh-cn;q=0.5,kn;q=0.4,ch;q=0.3,fo;q=0.2,gn;q=0.1,ce;q=0.1,ie;q=0.1
+ * Firefox
+ * Accept-Language: 'de-de,en-us;q=0.7,en;q=0.3'
+ * Accept-Language: de,en-ph;q=0.8,en-us;q=0.5,de-at;q=0.3
+ * Accept-Language: de,en-us;q=0.9,it;q=0.9,de-de;q=0.8,en-ph;q=0.7,de-at;q=0.7,zh-cn;q=0.6,cy;q=0.5,ar-om;q=0.5,en-tt;q=0.4,xh;q=0.3,nl-be;q=0.3,cs;q=0.2,sv;q=0.1,tk;q=0.1
+ */
+
+void httplang_to_locale(StrBuf *LocaleString, wcsession *sess)
{
- char *locale = "C";
- LangStruct wanted_locales[20];
+ LangStruct wanted_locales[SEARCH_LANG];
+ LangStruct *ls;
+
int i = 0;
int j = 0;
- size_t len = strlen(LocaleString);
- int nFound = 0;
+ /* size_t len = strlen(LocaleString); */
+ long prio;
+ int av;
+ int nBest;
int nParts;
- const int nAvail = 1; /* Number of members in AvailLang */
- char *search = (char *) malloc(len);
- locale_t my_Locale;
- locale_t my_Empty_Locale;
-
- memcpy(search, LocaleString, len);
- search[len] = '\0';
- nParts=num_tokens(search,',');
- for (i=0; ((i<nParts)&&(i<10)); i++)
- {
- char buf[16];
- char sbuf[16];
+ StrBuf *Buf = NULL;
+ StrBuf *SBuf = NULL;
+
+ nParts = StrBufNum_tokens(LocaleString, ',');
+ for (i=0; ((i<nParts) && (i < SEARCH_LANG)); i++)
+ {
+ char lbuf[32];
int blen;
+
+ if (Buf == NULL) {
+ Buf = NewStrBuf();
+ SBuf = NewStrBuf();
+ }
+ else {
+ FlushStrBuf(Buf);
+ FlushStrBuf(SBuf);
+ }
- extract_token(&buf[0],search, 0,',',16);
+ ls = &wanted_locales[i];
+
+ StrBufExtract_token(Buf, LocaleString, i, ',');
/* we are searching, if this list item has something like ;q=n*/
- if (num_tokens(&buf[0],'=')>1) {
- extract_token(&sbuf[0],&buf[0], 1,'=',16);
- wanted_locales[i].Priority=atof(&sbuf[0]);
+ if (StrBufNum_tokens(Buf, '=') > 1) {
+ int sbuflen, k;
+ StrBufExtract_token(SBuf, Buf, 1, '=');
+ sbuflen = StrLength(SBuf);
+ for (k = 0; k < sbuflen; k++) {
+ if (ChrPtr(SBuf)[k] == '.') {
+ StrBufPeek(SBuf, NULL, k, '0');
+ }
+ }
+ ls->priority = StrTol(SBuf);
}
else {
- wanted_locales[i].Priority=1.0;
+ ls->priority = 1000;
}
+
/* get the locale part */
- extract_token(&sbuf[0],&buf[0],0,';',16);
+ StrBufExtract_token(SBuf, Buf, 0, ';');
+
/* get the lang part, which should be allways there */
- extract_token(&wanted_locales[i].lang[0],&sbuf[0],0,'-',16);
+ extract_token(&ls->lang[0],
+ ChrPtr(SBuf),
+ 0, '-',
+ sizeof(ls->lang));
+
/* get the area code if any. */
- if (num_tokens(&sbuf[0],'-')>1) {
- extract_token(&wanted_locales[i].region[0],&sbuf[0],1,'-',16);
+ if (StrBufNum_tokens(SBuf, '-') > 1) {
+ extract_token(&ls->region[0],
+ ChrPtr(SBuf),
+ 1, '-',
+ sizeof(ls->region)
+ );
}
else { /* no ara code? use lang code */
- blen=strlen(&wanted_locales[i].lang[0]);
- memcpy(&wanted_locales[i].region[0], wanted_locales[i].lang,blen);
- wanted_locales[i].region[blen]='\0';
- } /* area codes are uppercase */
- blen=strlen(&wanted_locales[i].region[0]);
- for (j=0; j<blen; j++)
- {
- int chars=toupper(wanted_locales[i].region[j]);
- wanted_locales[i].region[j]=(char)chars;/*todo ?! */
- }
- }
+ blen=strlen(&ls->lang[0]);
+ memcpy(&ls->region[0], ls->lang, blen);
+ ls->region[blen] = '\0';
+ }
- /* todo: weight */
- if (nFound > 0) {
- for (i = 0; i <= nFound; i++) {
- for (j = 0; j < nAvail; j++) {
- int ret = strncasecmp(&wanted_locales[i].lang[0],
- AvailLang[j],
- strlen(&wanted_locales[i].lang[0]));
- if (!ret) {
- locale = (char *) AvailLang[j]; //wanted_locales[i];
- i = nFound + 1;
- j = nAvail + 1;
- continue;
- }
-
+ /* area codes are uppercase */
+ blen = strlen(&ls->region[0]);
+ for (j = 0; j < blen; j++)
+ {
+ int chars;
+ chars = toupper(ls->region[j]);
+ ls->region[j] = (char)chars; /* todo ? */
+ }
+ snprintf(&lbuf[0],
+ sizeof(lbuf),
+ "%s_%s",
+ &ls->lang[0],
+ &ls->region[0]);
+
+ /* check if we have this lang */
+ ls->availability = 1;
+ ls->selectedlang = -1;
+ for (j = 0; j < nLocalesLoaded; j++) {
+ int result;
+ /* match against the LANG part */
+ result = strcasecmp(&ls->lang[0], AvailLangLoaded[j]);
+ if ((result < 0) && (result < ls->availability)){
+ ls->availability = result;
+ ls->selectedlang = j;
+ }
+ /* match against lang and locale */
+ if (0 == strcasecmp(&lbuf[0], AvailLangLoaded[j])){
+ ls->availability = 0;
+ ls->selectedlang = j;
+ j = nLocalesLoaded;
}
}
+ }
+
+ prio = 0;
+ av = -1000;
+ nBest = -1;
+ for (i = 0; ((i < nParts) && (i<SEARCH_LANG)); i++) {
+ ls = &wanted_locales[i];
+ if ( (ls->availability <= 0)
+ && (av < ls->availability)
+ && (prio < ls->priority)
+ && (ls->selectedlang != -1)
+ ) {
+ nBest = ls->selectedlang;
+ av = ls->availability;
+ prio = ls->priority;
+ }
+ }
+ if (nBest == -1) {
+ /* fall back to C */
+ nBest=0;
}
+ sess->selected_language = nBest;
+ syslog(9, "language found: %s", AvailLangLoaded[WC->selected_language]);
+ FreeStrBuf(&Buf);
+ FreeStrBuf(&SBuf);
+}
- len = strlen(locale);
- memcpy(search, locale, len);
- memcpy(&search[len], ".UTF8", 5);
- search[len + 5] = '\0';
- my_Empty_Locale = newlocale(LC_ALL_MASK, NULL, NULL); /* create default locale */
- my_Locale = newlocale(LC_MESSAGES_MASK /*|LC_TIME_MASK FIXME */ ,
- search, my_Empty_Locale);
- uselocale(my_Locale);
- // freelocale(my_Locale);
- // freelocale(my_Empty_Locale);
- free(search);
+/*
+ * show the language chooser on the login dialog
+ * depending on the browser locale change the sequence of the
+ * language chooser.
+ */
+void tmplput_offer_languages(StrBuf *Target, WCTemplputParams *TP)
+{
+#ifdef HAVE_USELOCALE
+ int i;
+
+ wc_printf("<select name=\"language\" id=\"lname\" size=\"1\" onChange=\"switch_to_lang($('lname').value);\">\n");
+
+ for (i=0; i < nLocalesLoaded; ++i) {
+ wc_printf("<option %s value=%s>%s</option>\n",
+ ((WC->selected_language == i) ? "selected" : ""),
+ AvailLangLoaded[i],
+ AvailLangLoaded[i]
+ );
+ }
+
+ wc_printf("</select>\n");
+#else
+ wc_printf("%s", (getenv("LANG") ? getenv("LANG") : "C"));
+#endif
}
+/*
+ * Set the selected language for this session.
+ */
+void set_selected_language(const char *lang) {
+#ifdef HAVE_USELOCALE
+ int i;
+ for (i = 0; i<nLocalesLoaded; ++i) {
+ if (!strcasecmp(lang, AvailLangLoaded[i])) {
+ WC->selected_language = i;
+ break;
+ }
+ }
#endif
+}
+/*
+ * Activate the selected language for this session.
+ */
+void go_selected_language(void) {
+#ifdef HAVE_USELOCALE
+ wcsession *WCC = WC;
+ if (WCC->selected_language < 0) return;
+ uselocale(wc_locales[WCC->selected_language]); /* switch locales */
+ textdomain(textdomain(NULL)); /* clear the cache */
+#else
+ char *language;
+
+ language = getenv("LANG");
+ setlocale(LC_MESSAGES, language);
+#endif
+}
/*
- // the web browser sends '-', we need '_'
+ * Deactivate the selected language for this session.
+ */
+void stop_selected_language(void) {
+#ifdef HAVE_USELOCALE
+ uselocale(LC_GLOBAL_LOCALE); /* switch locales */
+ textdomain(textdomain(NULL)); /* clear the cache */
+#endif
+}
- for (i = 0; i < len; i++)
- if (search[i] == '-')
- search[i] = '_';
- nFound=i;
- nParts=num_tokens(search,',');
- if (nParts>0)
- {
- extract_token(prefers,search, 1,';',len);
- extract_token(langs,search, 0,';',len);
+/*
+ * Create a locale_t for each available language
+ */
+void initialize_locales(void) {
+ int nLocales;
+ int i;
+ char *language = NULL;
+
+#ifdef ENABLE_NLS
+ setlocale(LC_ALL, "");
+ syslog(9, "Text domain: %s", textdomain("webcit"));
+ syslog(9, "Message catalog directory: %s", bindtextdomain(textdomain(NULL), LOCALEDIR"/locale"));
+ syslog(9, "Text domain Charset: %s", bind_textdomain_codeset("webcit","UTF8"));
+#endif
+
+ nLocales = 0;
+ while (!IsEmptyStr(AvailLang[nLocales]))
+ nLocales++;
+
+ language = getenv("WEBCIT_LANG");
+ if ((language) && (!IsEmptyStr(language)) && (strcmp(language, "UNLIMITED") != 0)) {
+ syslog(9, "Nailing locale to %s", language);
+ }
+ else language = NULL;
+
+ AvailLangLoaded = malloc (sizeof(char*) * nLocales);
+ memset(AvailLangLoaded, 0, sizeof(char*) * nLocales);
+#ifdef HAVE_USELOCALE
+ wc_locales = malloc (sizeof(locale_t) * nLocales);
+ memset(wc_locales,0, sizeof(locale_t) * nLocales);
+ wc_locales[0] = newlocale(LC_ALL_MASK, NULL, NULL);
+#endif
+
+ for (i = 1; i < nLocales; ++i) {
+#ifdef HAVE_USELOCALE
+ wc_locales[nLocalesLoaded] = newlocale(
+ (LC_MESSAGES_MASK|LC_TIME_MASK),
+ AvailLang[i],
+ wc_locales[0]
+ );
+ if (wc_locales[nLocalesLoaded] == NULL) {
+ syslog(1, "locale for %s disabled: %s (domain: %s, path: %s)",
+ AvailLang[i],
+ strerror(errno),
+ textdomain(NULL),
+ bindtextdomain(textdomain(NULL), NULL)
+ );
}
- else
- {
- free(prefers);
- prefers=NULL;
- memcpy(search, len);
- search[len] = '\0';
+ else {
+ syslog(3, "Found locale: %s", AvailLang[i]);
+ AvailLangLoaded[nLocalesLoaded] = AvailLang[i];
+ nLocalesLoaded++;
}
- i = 0;
- while ( !done && (nFound < 10)) {
- if ((search[i] == ',') || (search[i] == ';') || (search[i] == '\0'))
- {
- if ((search[i] == ';') || (search[i] == '\0'))
- done = 1;
- search[i] = '\0';
- wanted_locales[nFound] = (char *) &search[j];
- j = i + 1;
- nFound++;
+#else
+ if ((language != NULL) && (strcmp(language, AvailLang[i]) == 0)) {
+ setenv("LANG", AvailLang[i], 1);
+ AvailLangLoaded[nLocalesLoaded] = AvailLang[i];
+ setlocale(LC_MESSAGES, AvailLang[i]);
+ nLocalesLoaded++;
+ }
+ else if (nLocalesLoaded == 0) {
+ setenv("LANG", AvailLang[i], 1);
+ AvailLangLoaded[nLocalesLoaded] = AvailLang[i];
+ nLocalesLoaded++;
}
+#endif
+ }
+ if ((language != NULL) && (nLocalesLoaded == 0)) {
+ syslog(1, "Your selected locale [%s] isn't available on your system. falling back to C", language);
+#ifndef HAVE_USELOCALE
+ setlocale(LC_MESSAGES, AvailLang[0]);
+ setenv("LANG", AvailLang[0], 1);
+#endif
+ AvailLangLoaded[0] = AvailLang[0];
+ nLocalesLoaded = 1;
+ }
+}
+
+
+void
+ServerShutdownModule_GETTEXT
+(void)
+{
+#ifdef HAVE_USELOCALE
+ int i;
+ for (i = 0; i < nLocalesLoaded; ++i) {
+ freelocale(wc_locales[i]);
+ }
+ free(wc_locales);
+#endif
+ free(AvailLangLoaded);
+}
+
+#else /* ENABLE_NLS */
+const char *AvailLang[] = {
+ "C",
+ ""
+};
+
+/* dummy for non NLS enabled systems */
+void tmplput_offer_languages(StrBuf *Target, WCTemplputParams *TP)
+{
+ wc_printf("English (US)");
+}
+
+/* dummy for non NLS enabled systems */
+void set_selected_language(const char *lang) {
+}
+
+/* dummy for non NLS enabled systems */
+void go_selected_language(void) {
+}
+
+/* dummy for non NLS enabled systems */
+void stop_selected_language(void) {
+}
+
+void initialize_locales(void) {
+}
+
+#endif /* ENABLE_NLS */
+
+
+void TmplGettext(StrBuf *Target, WCTemplputParams *TP)
+{
+ StrBufAppendBufPlain(Target, _(TP->Tokens->Params[0]->Start), -1, 0);
+}
+
- i++;
+/*
+ * Returns the language currently in use.
+ * This function returns a static string, so don't do anything stupid please.
+ */
+const char *get_selected_language(void) {
+#ifdef ENABLE_NLS
+#ifdef HAVE_USELOCALE
+ return AvailLang[WC->selected_language];
+#else
+ return "en";
+#endif
+#else
+ return "en";
+#endif
+}
+
+
+void Header_HandleAcceptLanguage(StrBuf *Line, ParsedHttpHdrs *hdr)
+{
+ hdr->HR.browser_language = Line;
+}
+
+
+void
+InitModule_GETTEXT
+(void)
+{
+ initialize_locales();
+
+ RegisterHeaderHandler(HKEY("ACCEPT-LANGUAGE"),
+ Header_HandleAcceptLanguage);
+
+ RegisterNamespace("LANG:SELECT", 0, 0,
+ tmplput_offer_languages, NULL, CTX_NONE);
+}
+
+
+void
+SessionNewModule_GETTEXT
+(wcsession *sess)
+{
+#ifdef ENABLE_NLS
+ if ( (sess != NULL)
+ && (!sess->Hdr->HR.Static)
+ && (sess->Hdr->HR.browser_language != NULL)
+ ) {
+ httplang_to_locale(sess->Hdr->HR.browser_language, sess);
}
-*/
+#endif
+}
+
+void
+SessionAttachModule_GETTEXT
+(wcsession *sess)
+{
+#ifdef ENABLE_NLS
+ go_selected_language(); /* set locale */
+#endif
+}
+
+void
+SessionDestroyModule_GETTEXT
+(wcsession *sess)
+{
+#ifdef ENABLE_NLS
+ stop_selected_language(); /* unset locale */
+#endif
+}
projects / citadel.git / blobdiff