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w3mbookmark.c

/* $Id: w3mbookmark.c,v 1.10 2003/09/23 18:42:25 ukai Exp $ */
#include <stdlib.h>
#include <stdio.h>
#include "config.h"
#include "Str.h"
#include "indep.h"
#include "textlist.h"
#include "parsetag.h"

#if LANG == JA
/* FIXME: gettextize here */
#define BKMARK_TITLE "ブックマークの登録"
#define BKMARK_ADD "登録"
#define DEFAULT_SECTION "未分類"
#else
#define BKMARK_TITLE "Register to my bookmark"
#define BKMARK_ADD "ADD"
#define DEFAULT_SECTION "Miscellaneous"
#endif

static char *bkmark_src1 =
    "<html>\n\
<head>\n\
<title>" BKMARK_TITLE "</title>\n\
</head>\n\
<body>\n\
<h1>" BKMARK_TITLE "</h1>\n\
<form method=post action=\"file:///$LIB/" W3MBOOKMARK_CMDNAME "\">\n\
<input type=hidden name=mode value=register>\n\
<input type=hidden name=bmark value=\"%s\">\n\
<input type=hidden name=cookie value=\"%s\">\n\
<table cellpadding=0>\n";

static char *bkmark_src2 =
    "<tr><td>New&nbsp;Section:<td><input type=text name=newsection size=60>\n\
<tr><td>URL:<td><input type=text name=url value=\"%s\" size=60>\n\
<tr><td>Title:<td><input type=text name=title value=\"%s\" size=60>\n\
<tr><td><input type=submit value=\"" BKMARK_ADD "\">\n\
</table>\n\
</form>\n\
</body>\n\
</html>\n";

#undef FALSE
#define FALSE 0
#undef TRUE
#define TRUE 1

static char end_section[] =
    "<!--End of section (do not delete this comment)-->\n";

static char *Local_cookie = NULL;

void
print_bookmark_panel(char *bmark, char *url, char *title)
{
    Str tmp, tmp2;
    FILE *f;
    char *p;

#if LANG == JA
    /* FIXME: gettextize here */
    printf("Content-Type: text/html; charset=EUC-JP\n\n");
#else
    printf("Content-Type: text/html\n\n");
#endif
    printf(bkmark_src1, html_quote(bmark), html_quote(Local_cookie));
    if ((f = fopen(bmark, "r")) != NULL) {
      printf("<tr><td>Section:<td><select name=\"section\">\n");
      while (tmp = Strfgets(f), tmp->length > 0) {
          Strremovefirstspaces(tmp);
          if (Strncasecmp_charp(tmp, "<h2>", 4) == 0) {
            p = tmp->ptr + 4;
            tmp2 = Strnew();
            while (*p && *p != '<')
                Strcat_char(tmp2, *p++);
            printf("<option value=\"%s\">%s\n", tmp2->ptr,
                   tmp2->ptr);
          }
      }
      printf("</select>\n");
    }
    printf(bkmark_src2, html_quote(url), html_quote(title));
}

/* create new bookmark */
static int
create_new_bookmark(char *bmark, char *section, char *title, char *url,
                char *mode)
{
    FILE *f;
    f = fopen(bmark, mode);
    if (f == NULL) {
      printf("\nCan't open bookmark %s\n", bmark);
      return FALSE;
    }
    else {
      fprintf(f, "<html><head><title>Bookmarks</title></head>\n");
      fprintf(f, "<body>\n<h1>Bookmarks</h1>\n");
      fprintf(f, "<h2>%s</h2>\n<ul>\n", section);
      fprintf(f, "<li><a href=\"%s\">%s</a>\n", url, title);
      fprintf(f, end_section);
      fprintf(f, "</ul>\n</body>\n</html>\n");
      fclose(f);
    }
    return TRUE;
}

int
insert_bookmark(char *bmark, struct parsed_tagarg *data)
{
    char *url, *title, *section;
    FILE *f;
    TextList *tl = newTextList();
    int section_found = 0;
    int bmark_added = 0;
    Str tmp, section_tmp;

    url = tag_get_value(data, "url");
    title = tag_get_value(data, "title");
    section = tag_get_value(data, "newsection");
    if (section == NULL || *section == '\0')
      section = tag_get_value(data, "section");
    if (section == NULL || *section == '\0')
      section = DEFAULT_SECTION;

    if (url == NULL || *url == '\0' || title == NULL || *title == '\0') {
      /* Bookmark not added */
      return FALSE;
    }
    url = html_quote(url);
    title = html_quote(title);
    section = html_quote(section);

    f = fopen(bmark, "r");
    if (f == NULL)
      return create_new_bookmark(bmark, section, title, url, "w");

    section_tmp = Sprintf("<h2>%s</h2>\n", section);
    for (;;) {
      tmp = Strfgets(f);
      if (tmp->length == 0)
          break;
      if (Strcasecmp(tmp, section_tmp) == 0)
          section_found = 1;
      if (section_found && !bmark_added) {
          Strremovefirstspaces(tmp);
          if (Strcmp_charp(tmp, end_section) == 0) {
            pushText(tl,
                   Sprintf("<li><a href=\"%s\">%s</a>\n", url,
                         title)->ptr);
            bmark_added = 1;
          }
      }
      if (!bmark_added && Strcasecmp_charp(tmp, "</body>\n") == 0) {
          pushText(tl, Sprintf("<h2>%s</h2>\n<ul>\n", section)->ptr);
          pushText(tl,
                 Sprintf("<li><a href=\"%s\">%s</a>\n", url, title)->ptr);
          pushText(tl, end_section);
          pushText(tl, "</ul>\n");
          bmark_added = 1;
      }
      pushText(tl, tmp->ptr);
    }
    fclose(f);
    if (!bmark_added) {
      /* Bookmark not added; perhaps the bookmark file is ill-formed */
      /* In this case, a new bookmark is appeneded after the bookmark file */
      return create_new_bookmark(bmark, section, title, url, "a");
    }
    f = fopen(bmark, "w");
    while (tl->nitem) {
      fputs(popText(tl), f);
    }
    fclose(f);
    return TRUE;
}

int
main(int argc, char *argv[], char **envp)
{
    extern char *getenv();
    char *p;
    int length;
    Str qs = NULL;
    struct parsed_tagarg *cgiarg;
    char *mode;
    char *bmark;
    char *url;
    char *title;
    char *sent_cookie;

    p = getenv("REQUEST_METHOD");
    if (p == NULL || strcasecmp(p, "post"))
      goto request_err;
    p = getenv("CONTENT_LENGTH");
    if (p == NULL || (length = atoi(p)) <= 0)
      goto request_err;

    qs = Strfgets(stdin);
    Strchop(qs);
    if (qs->length != length)
      goto request_err;
    cgiarg = cgistr2tagarg(qs->ptr);

    p = getenv("LOCAL_COOKIE_FILE");
    if (p) {
      FILE *f = fopen(p, "r");
      if (f) {
          Local_cookie = Strfgets(f)->ptr;
          fclose(f);
      }
    }
    sent_cookie = tag_get_value(cgiarg, "cookie");
    if (sent_cookie == NULL || Local_cookie == NULL ||
      strcmp(sent_cookie, Local_cookie) != 0) {
      /* local cookie doesn't match: It may be an illegal invocation */
      printf("Content-Type: text/plain\n\n");
      printf("Local cookie doesn't match: It may be an illegal invocation\n");
      exit(1);
    }

    mode = tag_get_value(cgiarg, "mode");
    bmark = expandPath(tag_get_value(cgiarg, "bmark"));
    url = tag_get_value(cgiarg, "url");
    title = tag_get_value(cgiarg, "title");
    if (bmark == NULL || url == NULL)
      goto request_err;
    if (mode && !strcmp(mode, "panel")) {
      if (title == NULL)
          title = "";
      print_bookmark_panel(bmark, url, title);
    }
    else if (mode && !strcmp(mode, "register")) {
      printf("Content-Type: text/plain\n");
      if (insert_bookmark(bmark, cgiarg)) {
          printf("w3m-control: BACK\n");
          printf("w3m-control: BACK\n");
      }
      printf("\n");
    }
    return 0;

  request_err:
    printf("Content-Type: text/plain\n\n");
    printf("Incomplete Request: %s\n", qs ? qs->ptr : "(null)");
    exit(1);
}

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