+/*
+ * $Id
+ */
+/**
+ * \defgroup LocaleHeaderParser Parse the browser http locale headers and set the NLS stuff.
+ */
+/*@{*/
+/** we need _GNU_SOURCE for various functions arround the NLS-Stuff */
#define _GNU_SOURCE
#include "webcit.h"
#include "webserver.h"
#ifdef ENABLE_NLS
-#define NUM_LANGS 3
+#define NUM_LANGS 4 /**< how many different locales do we know? */
+#define SEARCH_LANG 20 /**< how many langs should we parse? */
+
+/** actual supported locales */
char *AvailLang[NUM_LANGS] = {
+ "C",
"en_US",
"de_DE",
"it_IT"
};
-locale_t wc_locales[NUM_LANGS];
+locale_t wc_locales[NUM_LANGS]; /**< here we keep the parsed stuff */
+/** 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 */
+/* \brief parse browser locale header
+ * seems as most browsers just do a one after coma 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
+ * \param LocaleString the string from the browser http headers
+ */
+
void httplang_to_locale(char *LocaleString)
{
- char selected_locale[16];
- int i, j;
- char lang[64];
- int num_accept = 0;
-
- strcpy(selected_locale, "C");
- num_accept = num_tokens(LocaleString, ',');
-
- for (i=num_accept-1; i>=0; --i) {
- extract_token(lang, LocaleString, i, ',', sizeof lang);
-
- /* Strip out the weights; we don't use them. Also convert
- * hyphens to underscores.
- */
- for (j=0; j<strlen(lang); ++j) {
- if (lang[j] == '-') lang[j] = '_';
- if (lang[j] == ';') lang[j] = 0;
- }
+ LangStruct wanted_locales[SEARCH_LANG];
+ LangStruct *ls;
- for (j=0; j<NUM_LANGS; ++j) {
- if (!strcasecmp(lang, AvailLang[j])) {
- strcpy(selected_locale, AvailLang[j]);
+ int i = 0;
+ int j = 0;
+ size_t len = strlen(LocaleString);
+ long prio;
+ int av;
+ int nBest;
+ int nParts;
+ 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<SEARCH_LANG)); i++)
+ {
+ char buf[16];
+ char sbuf[16];
+ char lbuf[16];
+ int blen;
+
+ ls=&wanted_locales[i];
+
+ extract_token(&buf[0],search, i,',',16);
+ /** we are searching, if this list item has something like ;q=n*/
+ if (num_tokens(&buf[0],'=')>1) {
+ int sbuflen, k;
+ extract_token(&sbuf[0],&buf[0], 1,'=',16);
+ sbuflen=strlen(&sbuf[0]);
+ for (k=0; k<sbuflen; k++) if (sbuf[k]=='.') sbuf[k]='0';
+ ls->priority=atol(&sbuf[0]);
+ }
+ else {
+ ls->priority=1000;
+ }
+ /** get the locale part */
+ extract_token(&sbuf[0],&buf[0],0,';',16);
+ /** get the lang part, which should be allways there */
+ extract_token(&ls->lang[0],&sbuf[0],0,'-',16);
+ /** get the area code if any. */
+ if (num_tokens(&sbuf[0],'-')>1) {
+ extract_token(&ls->region[0],&sbuf[0],1,'-',16);
+ }
+ else { /** no ara code? use lang code */
+ blen=strlen(&ls->lang[0]);
+ memcpy(&ls->region[0], ls->lang,blen);
+ ls->region[blen]='\0';
+ } /** area codes are uppercase */
+ blen=strlen(&ls->region[0]);
+ for (j=0; j<blen; j++)
+ {
+ int chars=toupper(ls->region[j]);
+ ls->region[j]=(char)chars;/** \todo ?! */
+ }
+ sprintf(&lbuf[0],"%s_%s",&ls->lang[0],&ls->region[0]);
+
+ /** check if we have this lang */
+ ls->availability=1;
+ ls->selectedlang=-1;
+ for (j=0; j<NUM_LANGS; j++) {
+ int result;
+ /** match against the LANG part */
+ result=strcasecmp(&ls->lang[0], AvailLang[j]);
+ if ((result<0)&&(result<ls->availability)){
+ ls->availability=result;
+ ls->selectedlang=j;
+ }
+ /** match against lang and locale */
+ if (0==strcasecmp(&lbuf[0], AvailLang[j])){
+ ls->availability=0;
+ ls->selectedlang=j;
+ j=NUM_LANGS;
+ }
+ }
+ }
+
+ 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;
}
}
- }
-
- lprintf(9, "language found: %s\n", selected_locale);
- set_selected_language(selected_locale);
+ if (nBest==-1) /** fall back to C */
+ nBest=0;
+ WC->selected_language=nBest;
+ lprintf(9, "language found: %s\n", AvailLang[WC->selected_language]);
+ // set_selected_language(selected_locale);
}
+/* 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(char *LocaleString)
+//{
+// char selected_locale[16];
+// int i, j;
+// char lang[64];
+// int num_accept = 0;
+//
+// lprintf(9, "languageAccept: %s\n", LocaleString);
+//
+// strcpy(selected_locale, "C");
+// num_accept = num_tokens(LocaleString, ',');
+//
+// for (i=num_accept-1; i>=0; --i) {
+// extract_token(lang, LocaleString, i, ',', sizeof lang);
+//
+// /* Strip out the weights; we don't use them. Also convert
+// * hyphens to underscores.
+// */
+// for (j=0; j<strlen(lang); ++j) {
+// if (lang[j] == '-') lang[j] = '_';
+// if (lang[j] == ';') lang[j] = 0;
+// }
+//
+// for (j=0; j<NUM_LANGS; ++j) {
+// if (!strncasecmp(lang, AvailLang[j], strlen(lang))) {
+// strcpy(selected_locale, AvailLang[j]);
+// }
+// }
+// }
+//
+// lprintf(9, "language found: %s\n", selected_locale);
+// set_selected_language(selected_locale);
+//}
+
+/**
+ * \brief show the language chooser on the login dialog
+ * depending on the browser locale change the sequence of the
+ * language chooser.
+ */
void offer_languages(void) {
int i;
wprintf("</select>\n");
}
-/*
- * Set the selected language for this session.
+/**
+ * \brief Set the selected language for this session.
+ * \param lang the locale to set.
*/
void set_selected_language(char *lang) {
int i;
}
}
-/*
- * Activate and deactivate the selected language for this session.
+/**
+ * \brief Activate the selected language for this session.
*/
void go_selected_language(void) {
if (WC->selected_language < 0) return;
- uselocale(wc_locales[WC->selected_language]); /* switch locales */
- textdomain(textdomain(NULL)); /* clear the cache */
+ uselocale(wc_locales[WC->selected_language]); /** switch locales */
+ textdomain(textdomain(NULL)); /** clear the cache */
}
+/**
+ * \brief Deactivate the selected language for this session.
+ */
void stop_selected_language(void) {
- uselocale(LC_GLOBAL_LOCALE); /* switch locales */
- textdomain(textdomain(NULL)); /* clear the cache */
+ uselocale(LC_GLOBAL_LOCALE); /** switch locales */
+ textdomain(textdomain(NULL)); /** clear the cache */
}
-/*
- * Create a locale_t for each available language
+/**
+ * \brief Create a locale_t for each available language
*/
void initialize_locales(void) {
int i;
#else /* ENABLE_NLS */
-
+/** \brief dummy for non NLS enabled systems */
void offer_languages(void) {
wprintf("English (US)");
}
+/** \brief dummy for non NLS enabled systems */
void set_selected_language(char *lang) {
}
+/** \brief dummy for non NLS enabled systems */
void go_selected_language(void) {
}
+/** \brief dummy for non NLS enabled systems */
void stop_selected_language(void) {
}
#endif /* ENABLE_NLS */
+
+
+/*@}*/
projects / citadel.git / blobdiff